/* * BSD 2-Clause License * * Copyright (C) 2014-2016, Lazaros Koromilas * Copyright (C) 2014-2016, Dimitris Papastamos * Copyright (C) 2016-2019, Arun Prakash Jana * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifdef __linux__ #ifndef _GNU_SOURCE #define _GNU_SOURCE #endif #if defined(__arm__) || defined(__i386__) #define _FILE_OFFSET_BITS 64 /* Support large files on 32-bit */ #endif #include #define LINUX_INOTIFY #if !defined(__GLIBC__) #include #endif #endif #include #include #include #if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__) #include #include #include #define BSD_KQUEUE #else #include #endif #include #ifdef __linux__ /* Fix failure due to mvaddnwstr() */ #ifndef NCURSES_WIDECHAR #define NCURSES_WIDECHAR 1 #endif #elif defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__) #ifndef _XOPEN_SOURCE_EXTENDED #define _XOPEN_SOURCE_EXTENDED #endif #endif #ifndef __USE_XOPEN /* Fix wcswidth() failure, ncursesw/curses.h includes whcar.h on Ubuntu 14.04 */ #define __USE_XOPEN #endif #include #include #include #include #include #ifdef __gnu_hurd__ #define PATH_MAX 4096 #endif #include #include #ifndef NORL #include #include #endif #include #include #include #include #include #include #include #include #ifndef __USE_XOPEN_EXTENDED #define __USE_XOPEN_EXTENDED 1 #endif #include #include #include "nnn.h" #include "dbg.h" /* Macro definitions */ #define VERSION "2.6" #define GENERAL_INFO "BSD 2-Clause\nhttps://github.com/jarun/nnn" #ifndef S_BLKSIZE #define S_BLKSIZE 512 /* S_BLKSIZE is missing on Android NDK (Termux) */ #endif #define LEN(x) (sizeof(x) / sizeof(*(x))) #undef MIN #define MIN(x, y) ((x) < (y) ? (x) : (y)) #undef MAX #define MAX(x, y) ((x) > (y) ? (x) : (y)) #define ISODD(x) ((x) & 1) #define ISBLANK(x) ((x) == ' ' || (x) == '\t') #define TOUPPER(ch) \ (((ch) >= 'a' && (ch) <= 'z') ? ((ch) - 'a' + 'A') : (ch)) #define CMD_LEN_MAX (PATH_MAX + ((NAME_MAX + 1) << 1)) #define FILTER '/' #define MSGWAIT '$' #define REGEX_MAX 48 #define BM_MAX 10 #define PLUGIN_MAX 10 #define ENTRY_INCR 64 /* Number of dir 'entry' structures to allocate per shot */ #define NAMEBUF_INCR 0x800 /* 64 dir entries at once, avg. 32 chars per filename = 64*32B = 2KB */ #define DESCRIPTOR_LEN 32 #define _ALIGNMENT 0x10 /* 16-byte alignment */ #define _ALIGNMENT_MASK 0xF #define TMP_LEN_MAX 64 #define CTX_MAX 4 #define DOT_FILTER_LEN 7 #define ASCII_MAX 128 #define EXEC_ARGS_MAX 8 #define SCROLLOFF 3 #define LONG_SIZE sizeof(ulong) #define ARCHIVE_CMD_LEN 16 /* Program return codes */ #define _SUCCESS 0 #define _FAILURE !_SUCCESS /* Entry flags */ #define DIR_OR_LINK_TO_DIR 0x1 #define FILE_COPIED 0x10 /* Macros to define process spawn behaviour as flags */ #define F_NONE 0x00 /* no flag set */ #define F_MULTI 0x01 /* first arg can be combination of args; to be used with F_NORMAL */ #define F_NOWAIT 0x02 /* don't wait for child process (e.g. file manager) */ #define F_NOTRACE 0x04 /* suppress stdout and strerr (no traces) */ #define F_NORMAL 0x08 /* spawn child process in non-curses regular CLI mode */ #define F_CMD 0x10 /* run command - show results before exit (must have F_NORMAL) */ #define F_CLI (F_NORMAL | F_MULTI) /* CRC8 macros */ #define UCHAR_BIT_WIDTH (sizeof(unsigned char) << 3) #define TOPBIT (1 << (UCHAR_BIT_WIDTH - 1)) #define POLYNOMIAL 0xD8 /* 11011 followed by 0's */ #define CRC8_TABLE_LEN 256 /* Version compare macros */ /* * states: S_N: normal, S_I: comparing integral part, S_F: comparing * fractional parts, S_Z: idem but with leading Zeroes only */ #define S_N 0x0 #define S_I 0x3 #define S_F 0x6 #define S_Z 0x9 /* result_type: VCMP: return diff; VLEN: compare using len_diff/diff */ #define VCMP 2 #define VLEN 3 /* Volume info */ #define FREE 0 #define CAPACITY 1 /* TYPE DEFINITIONS */ typedef unsigned long ulong; typedef unsigned int uint; typedef unsigned char uchar; typedef unsigned short ushort; /* STRUCTURES */ /* Directory entry */ typedef struct entry { char *name; time_t t; off_t size; blkcnt_t blocks; /* number of 512B blocks allocated */ mode_t mode; ushort nlen; /* Length of file name; can be uchar (< NAME_MAX + 1) */ uchar flags; /* Flags specific to the file */ } __attribute__ ((aligned(_ALIGNMENT))) *pEntry; /* Key-value pairs from env */ typedef struct { int key; char *val; } kv; /* * Settings * NOTE: update default values if changing order */ typedef struct { uint filtermode : 1; /* Set to enter filter mode */ uint mtimeorder : 1; /* Set to sort by time modified */ uint sizeorder : 1; /* Set to sort by file size */ uint apparentsz : 1; /* Set to sort by apparent size (disk usage) */ uint blkorder : 1; /* Set to sort by blocks used (disk usage) */ uint extnorder : 1; /* Order by extension */ uint showhidden : 1; /* Set to show hidden files */ uint copymode : 1; /* Set when copying files */ uint showdetail : 1; /* Clear to show fewer file info */ uint ctxactive : 1; /* Context active or not */ uint reserved : 7; /* The following settings are global */ uint curctx : 2; /* Current context number */ uint dircolor : 1; /* Current status of dir color */ uint picker : 1; /* Write selection to user-specified file */ uint pickraw : 1; /* Write selection to sdtout before exit */ uint nonavopen : 1; /* Open file on right arrow or `l` */ uint autoselect : 1; /* Auto-select dir in nav-as-you-type mode */ uint metaviewer : 1; /* Index of metadata viewer in utils[] */ uint useeditor : 1; /* Use VISUAL to open text files */ uint runplugin : 1; /* Choose plugin mode */ uint runctx : 2; /* The context in which plugin is to be run */ uint filter_re : 1; /* Use regex filters */ uint wild : 1; /* Do not sort entries on dir load */ uint trash : 1; /* Move removed files to trash */ } settings; /* Contexts or workspaces */ typedef struct { char c_path[PATH_MAX]; /* Current dir */ char c_last[PATH_MAX]; /* Last visited dir */ char c_name[NAME_MAX + 1]; /* Current file name */ char c_fltr[REGEX_MAX]; /* Current filter */ settings c_cfg; /* Current configuration */ uint color; /* Color code for directories */ } context; /* GLOBALS */ /* Configuration, contexts */ static settings cfg = { 0, /* filtermode */ 0, /* mtimeorder */ 0, /* sizeorder */ 0, /* apparentsz */ 0, /* blkorder */ 0, /* extnorder */ 0, /* showhidden */ 0, /* copymode */ 0, /* showdetail */ 1, /* ctxactive */ 0, /* reserved */ 0, /* curctx */ 0, /* dircolor */ 0, /* picker */ 0, /* pickraw */ 0, /* nonavopen */ 1, /* autoselect */ 0, /* metaviewer */ 0, /* useeditor */ 0, /* runplugin */ 0, /* runctx */ 1, /* filter_re */ 0, /* wild */ 0, /* trash */ }; static context g_ctx[CTX_MAX] __attribute__ ((aligned)); static int ndents, cur, curscroll, total_dents = ENTRY_INCR; static int xlines, xcols; static uint idle; static uint idletimeout, copybufpos, copybuflen; static char *bmstr; static char *pluginstr; static char *opener; static char *copier; static char *editor; static char *pager; static char *shell; static char *home; static char *initpath; static char *cfgdir; static char *g_cppath; static char *plugindir; static char *pnamebuf, *pcopybuf; static struct entry *dents; static blkcnt_t ent_blocks; static blkcnt_t dir_blocks; static ulong num_files; static kv bookmark[BM_MAX]; static kv plug[PLUGIN_MAX]; static size_t g_tmpfplen; static uchar g_crc; static uchar BLK_SHIFT = 9; static bool interrupted = FALSE; /* Retain old signal handlers */ #ifdef __linux__ static sighandler_t oldsighup; /* old value of hangup signal */ static sighandler_t oldsigtstp; /* old value of SIGTSTP */ #else static sig_t oldsighup; static sig_t oldsigtstp; #endif /* For use in functions which are isolated and don't return the buffer */ static char g_buf[CMD_LEN_MAX] __attribute__ ((aligned)); /* Buffer to store tmp file path to show selection, file stats and help */ static char g_tmpfpath[TMP_LEN_MAX] __attribute__ ((aligned)); /* Replace-str for xargs on different platforms */ #if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__) #define REPLACE_STR 'J' #elif defined(__linux__) || defined(__CYGWIN__) #define REPLACE_STR 'I' #else #define REPLACE_STR 'I' #endif /* Options to identify file mime */ #ifdef __APPLE__ #define FILE_OPTS "-bIL" #else #define FILE_OPTS "-biL" #endif /* Macros for utilities */ #define MEDIAINFO 0 #define EXIFTOOL 1 #define OPENER 2 #define ATOOL 3 #define BSDTAR 4 #define UNZIP 5 #define TAR 6 #define LOCKER 7 #define CMATRIX 8 #define NLAUNCH 9 #define UNKNOWN 10 /* Utilities to open files, run actions */ static char * const utils[] = { "mediainfo", "exiftool", #ifdef __APPLE__ "/usr/bin/open", #elif defined __CYGWIN__ "cygstart", #else "xdg-open", #endif "atool", "bsdtar", "unzip", "tar", #ifdef __APPLE__ "bashlock", #elif defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) "lock", #else "vlock", #endif "cmatrix", "nlaunch", "UNKNOWN" }; #ifdef __linux__ static char cp[] = "cpg -giRp"; static char mv[] = "mvg -gi"; #endif /* Common strings */ #define STR_INPUT_ID 0 #define STR_INVBM_KEY 1 #define STR_DATE_ID 2 #define STR_TMPFILE 3 #define NONE_SELECTED 4 #define UTIL_MISSING 5 static const char * const messages[] = { "no traversal", "invalid key", "%F %T %z", "/.nnnXXXXXX", "empty selection", "utility missing", }; /* Supported configuration environment variables */ #define NNN_BMS 0 #define NNN_OPENER 1 #define NNN_CONTEXT_COLORS 2 #define NNN_IDLE_TIMEOUT 3 #define NNN_COPIER 4 #define NNN_NOTE 5 #define NNNLVL 6 /* strings end here */ #define NNN_USE_EDITOR 7 /* flags begin here */ #define NNN_NO_AUTOSELECT 8 #define NNN_RESTRICT_NAV_OPEN 9 #define NNN_TRASH 10 #ifdef __linux__ #define NNN_CP_MV_PROG 11 #endif static const char * const env_cfg[] = { "NNN_BMS", "NNN_OPENER", "NNN_CONTEXT_COLORS", "NNN_IDLE_TIMEOUT", "NNN_COPIER", "NNN_NOTE", "NNNLVL", "NNN_USE_EDITOR", "NNN_NO_AUTOSELECT", "NNN_RESTRICT_NAV_OPEN", "NNN_TRASH", #ifdef __linux__ "NNN_CP_MV_PROG", #endif }; /* Required environment variables */ #define SHELL 0 #define VISUAL 1 #define EDITOR 2 #define PAGER 3 static const char * const envs[] = { "SHELL", "VISUAL", "EDITOR", "PAGER", }; /* Event handling */ #ifdef LINUX_INOTIFY #define NUM_EVENT_SLOTS 16 /* Make room for 16 events */ #define EVENT_SIZE (sizeof(struct inotify_event)) #define EVENT_BUF_LEN (EVENT_SIZE * NUM_EVENT_SLOTS) static int inotify_fd, inotify_wd = -1; static uint INOTIFY_MASK = /* IN_ATTRIB | */ IN_CREATE | IN_DELETE | IN_DELETE_SELF | IN_MODIFY | IN_MOVE_SELF | IN_MOVED_FROM | IN_MOVED_TO; #elif defined(BSD_KQUEUE) #define NUM_EVENT_SLOTS 1 #define NUM_EVENT_FDS 1 static int kq, event_fd = -1; static struct kevent events_to_monitor[NUM_EVENT_FDS]; static uint KQUEUE_FFLAGS = NOTE_DELETE | NOTE_EXTEND | NOTE_LINK | NOTE_RENAME | NOTE_REVOKE | NOTE_WRITE; static struct timespec gtimeout; #endif /* Function macros */ #define exitcurses() endwin() #define clearprompt() printmsg("") #define printwarn(presel) printwait(strerror(errno), presel) #define istopdir(path) ((path)[1] == '\0' && (path)[0] == '/') #define copycurname() xstrlcpy(lastname, dents[cur].name, NAME_MAX + 1) #define settimeout() timeout(1000) #define cleartimeout() timeout(-1) #define errexit() printerr(__LINE__) #define setdirwatch() (cfg.filtermode ? (presel = FILTER) : (dir_changed = TRUE)) /* We don't care about the return value from strcmp() */ #define xstrcmp(a, b) (*(a) != *(b) ? -1 : strcmp((a), (b))) /* A faster version of xisdigit */ #define xisdigit(c) ((unsigned int) (c) - '0' <= 9) #define xerror() perror(xitoa(__LINE__)) /* Forward declarations */ static void redraw(char *path); static int spawn(char *file, char *arg1, char *arg2, const char *dir, uchar flag); static int (*nftw_fn)(const char *fpath, const struct stat *sb, int typeflag, struct FTW *ftwbuf); static int dentfind(const char *fname, int n); static void move_cursor(int target, int ignore_scrolloff); static bool getutil(char *util); /* Functions */ /* * CRC8 source: * https://barrgroup.com/Embedded-Systems/How-To/CRC-Calculation-C-Code */ static uchar crc8fast(const uchar * const message, size_t n) { uchar data, remainder = 0; size_t byte = 0; /* CRC data */ static const uchar crc8table[CRC8_TABLE_LEN] __attribute__ ((aligned)) = { 0, 94, 188, 226, 97, 63, 221, 131, 194, 156, 126, 32, 163, 253, 31, 65, 157, 195, 33, 127, 252, 162, 64, 30, 95, 1, 227, 189, 62, 96, 130, 220, 35, 125, 159, 193, 66, 28, 254, 160, 225, 191, 93, 3, 128, 222, 60, 98, 190, 224, 2, 92, 223, 129, 99, 61, 124, 34, 192, 158, 29, 67, 161, 255, 70, 24, 250, 164, 39, 121, 155, 197, 132, 218, 56, 102, 229, 187, 89, 7, 219, 133, 103, 57, 186, 228, 6, 88, 25, 71, 165, 251, 120, 38, 196, 154, 101, 59, 217, 135, 4, 90, 184, 230, 167, 249, 27, 69, 198, 152, 122, 36, 248, 166, 68, 26, 153, 199, 37, 123, 58, 100, 134, 216, 91, 5, 231, 185, 140, 210, 48, 110, 237, 179, 81, 15, 78, 16, 242, 172, 47, 113, 147, 205, 17, 79, 173, 243, 112, 46, 204, 146, 211, 141, 111, 49, 178, 236, 14, 80, 175, 241, 19, 77, 206, 144, 114, 44, 109, 51, 209, 143, 12, 82, 176, 238, 50, 108, 142, 208, 83, 13, 239, 177, 240, 174, 76, 18, 145, 207, 45, 115, 202, 148, 118, 40, 171, 245, 23, 73, 8, 86, 180, 234, 105, 55, 213, 139, 87, 9, 235, 181, 54, 104, 138, 212, 149, 203, 41, 119, 244, 170, 72, 22, 233, 183, 85, 11, 136, 214, 52, 106, 43, 117, 151, 201, 74, 20, 246, 168, 116, 42, 200, 150, 21, 75, 169, 247, 182, 232, 10, 84, 215, 137, 107, 53, }; /* Divide the message by the polynomial, a byte at a time */ while (byte < n) { data = message[byte] ^ (remainder >> (UCHAR_BIT_WIDTH - 8)); remainder = crc8table[data] ^ (remainder << 8); ++byte; } /* The final remainder is the CRC */ return remainder; } static void sigint_handler(int sig) { interrupted = TRUE; } static uint xatoi(const char *str) { int val = 0; if (!str) return 0; while (xisdigit(*str)) { val = val * 10 + (*str - '0'); ++str; } return val; } static char *xitoa(uint val) { static char ascbuf[32] = {0}; int i; for (i = 30; val && i; --i, val /= 10) ascbuf[i] = '0' + (val % 10); return &ascbuf[++i]; } #ifdef KEY_RESIZE /* Clear the old prompt */ static inline void clearoldprompt() { move(xlines - 1, 0); clrtoeol(); } #endif /* Messages show up at the bottom */ static inline void printmsg(const char *msg) { mvprintw(xlines - 1, 0, "%s\n", msg); } static void printwait(const char *msg, int *presel) { printmsg(msg); if (presel) *presel = MSGWAIT; } /* Kill curses and display error before exiting */ static void printerr(int linenum) { exitcurses(); perror(xitoa(linenum)); if (!cfg.picker && g_cppath) unlink(g_cppath); free(pcopybuf); exit(1); } /* Print prompt on the last line */ static void printprompt(const char *str) { clearprompt(); printw(str); } static int get_input(const char *prompt) { int r; if (prompt) printprompt(prompt); cleartimeout(); #ifdef KEY_RESIZE do { r = getch(); if ( r == KEY_RESIZE) { if (prompt) { clearoldprompt(); xlines = LINES; printprompt(prompt); } } } while ( r == KEY_RESIZE); #else r = getch(); #endif settimeout(); return r; } static void xdelay(void) { refresh(); usleep(350000); /* 350 ms delay */ } static char confirm_force(void) { int r = get_input("use force? [y/Y confirms]"); if (r == 'y' || r == 'Y') return 'f'; /* forceful */ return 'i'; /* interactive */ } /* Increase the limit on open file descriptors, if possible */ static rlim_t max_openfds(void) { struct rlimit rl; rlim_t limit = getrlimit(RLIMIT_NOFILE, &rl); if (limit != 0) return 32; limit = rl.rlim_cur; rl.rlim_cur = rl.rlim_max; /* Return ~75% of max possible */ if (setrlimit(RLIMIT_NOFILE, &rl) == 0) { limit = rl.rlim_max - (rl.rlim_max >> 2); /* * 20K is arbitrary. If the limit is set to max possible * value, the memory usage increases to more than double. */ return limit > 20480 ? 20480 : limit; } return limit; } /* * Wrapper to realloc() * Frees current memory if realloc() fails and returns NULL. * * As per the docs, the *alloc() family is supposed to be memory aligned: * Ubuntu: http://manpages.ubuntu.com/manpages/xenial/man3/malloc.3.html * macOS: https://developer.apple.com/legacy/library/documentation/Darwin/Reference/ManPages/man3/malloc.3.html */ static void *xrealloc(void *pcur, size_t len) { void *pmem = realloc(pcur, len); if (!pmem) free(pcur); return pmem; } /* * Just a safe strncpy(3) * Always null ('\0') terminates if both src and dest are valid pointers. * Returns the number of bytes copied including terminating null byte. */ static size_t xstrlcpy(char *dest, const char *src, size_t n) { if (!src || !dest || !n) return 0; ulong *s, *d; size_t len = strlen(src) + 1, blocks; const uint _WSHIFT = (LONG_SIZE == 8) ? 3 : 2; if (n > len) n = len; else if (len > n) /* Save total number of bytes to copy in len */ len = n; /* * To enable -O3 ensure src and dest are 16-byte aligned * More info: http://www.felixcloutier.com/x86/MOVDQA.html */ if ((n >= LONG_SIZE) && (((ulong)src & _ALIGNMENT_MASK) == 0 && ((ulong)dest & _ALIGNMENT_MASK) == 0)) { s = (ulong *)src; d = (ulong *)dest; blocks = n >> _WSHIFT; n &= LONG_SIZE - 1; while (blocks) { *d = *s; // NOLINT ++d, ++s; --blocks; } if (!n) { dest = (char *)d; *--dest = '\0'; return len; } src = (char *)s; dest = (char *)d; } while (--n && (*dest = *src)) // NOLINT ++dest, ++src; if (!n) *dest = '\0'; return len; } static bool is_suffix(const char *str, const char *suffix) { if (!str || !suffix) return FALSE; size_t lenstr = strlen(str); size_t lensuffix = strlen(suffix); if (lensuffix > lenstr) return FALSE; return (xstrcmp(str + (lenstr - lensuffix), suffix) == 0); } /* * The poor man's implementation of memrchr(3). * We are only looking for '/' in this program. * And we are NOT expecting a '/' at the end. * Ideally 0 < n <= strlen(s). */ static void *xmemrchr(uchar *s, uchar ch, size_t n) { if (!s || !n) return NULL; uchar *ptr = s + n; do { --ptr; if (*ptr == ch) return ptr; } while (s != ptr); return NULL; } static char *xbasename(char *path) { char *base = xmemrchr((uchar *)path, '/', strlen(path)); // NOLINT return base ? base + 1 : path; } static int create_tmp_file() { xstrlcpy(g_tmpfpath + g_tmpfplen - 1, messages[STR_TMPFILE], TMP_LEN_MAX - g_tmpfplen); return mkstemp(g_tmpfpath); } /* Writes buflen char(s) from buf to a file */ static void writecp(const char *buf, const size_t buflen) { if (cfg.pickraw || !g_cppath) return; FILE *fp = fopen(g_cppath, "w"); if (fp) { if (fwrite(buf, 1, buflen, fp) != buflen) printwarn(NULL); fclose(fp); } else printwarn(NULL); } static void appendfpath(const char *path, const size_t len) { if ((copybufpos >= copybuflen) || ((len + 3) > (copybuflen - copybufpos))) { copybuflen += PATH_MAX; pcopybuf = xrealloc(pcopybuf, copybuflen); if (!pcopybuf) errexit(); } copybufpos += xstrlcpy(pcopybuf + copybufpos, path, len); } /* Write selected file paths to fd, linefeed separated */ static size_t selectiontofd(int fd, uint *pcount) { uint lastpos, count = 0; char *pbuf = pcopybuf; size_t pos = 0, len; ssize_t r; if (pcount) *pcount = 0; if (!copybufpos) return 0; lastpos = copybufpos - 1; while (pos <= lastpos) { len = strlen(pbuf); pos += len; r = write(fd, pbuf, len); if (r != (ssize_t)len) return pos; if (pos <= lastpos) { if (write(fd, "\n", 1) != 1) return pos; pbuf += len + 1; } ++pos; ++count; } if (pcount) *pcount = count; return pos; } /* List selection from selection buffer */ static bool showcplist(void) { int fd; size_t pos; if (!copybufpos) return FALSE; fd = create_tmp_file(); if (fd == -1) { DPRINTF_S("mkstemp failed!"); return FALSE; } pos = selectiontofd(fd, NULL); close(fd); if (pos && pos == copybufpos) spawn(pager, g_tmpfpath, NULL, NULL, F_CLI); unlink(g_tmpfpath); return TRUE; } /* List selection from selection file (another instance) */ static bool showcpfile(void) { struct stat sb; if (stat(g_cppath, &sb) == -1) return FALSE; /* Nothing selected if file size is 0 */ if (!sb.st_size) return FALSE; snprintf(g_buf, CMD_LEN_MAX, "cat %s | tr \'\\0\' \'\\n\'", g_cppath); spawn("sh", "-c", g_buf, NULL, F_NORMAL | F_CMD); return TRUE; } static bool cpsafe(void) { /* Fail if selection file path not generated */ if (!g_cppath) { printmsg("selection file not found"); return FALSE; } /* Warn if selection not completed */ if (cfg.copymode) { printmsg("finish selection first"); return FALSE; } /* Fail if selection file path isn't accessible */ if (access(g_cppath, R_OK | W_OK) == -1) { errno == ENOENT ? printmsg(messages[NONE_SELECTED]) : printwarn(NULL); return FALSE; } return TRUE; } /* Reset copy indicators */ static void resetcpind(void) { int r = 0; /* Reset copy indicators */ for (; r < ndents; ++r) if (dents[r].flags & FILE_COPIED) dents[r].flags &= ~FILE_COPIED; } /* Initialize curses mode */ static bool initcurses(void) { short i; if (cfg.picker) { if (!newterm(NULL, stderr, stdin)) { fprintf(stderr, "newterm!\n"); return FALSE; } } else if (!initscr()) { char *term = getenv("TERM"); if (term) fprintf(stderr, "error opening TERM: %s\n", term); else fprintf(stderr, "initscr!\n"); return FALSE; } cbreak(); noecho(); nonl(); //intrflush(stdscr, FALSE); keypad(stdscr, TRUE); #if NCURSES_MOUSE_VERSION <= 1 mousemask(BUTTON1_CLICKED | BUTTON1_DOUBLE_CLICKED, NULL); #else mousemask(BUTTON1_CLICKED | BUTTON1_DOUBLE_CLICKED | BUTTON4_PRESSED | BUTTON5_PRESSED, NULL); #endif mouseinterval(400); curs_set(FALSE); /* Hide cursor */ start_color(); use_default_colors(); /* Initialize default colors */ for (i = 0; i < CTX_MAX; ++i) init_pair(i + 1, g_ctx[i].color, -1); settimeout(); /* One second */ set_escdelay(25); return TRUE; } /* No NULL check here as spawn() guards against it */ static int parseargs(char *line, char **argv) { int count = 0; argv[count++] = line; while (*line) { // NOLINT if (ISBLANK(*line)) { *line++ = '\0'; if (!*line) // NOLINT return count; argv[count++] = line; if (count == EXEC_ARGS_MAX) return -1; } ++line; } return count; } static pid_t xfork(uchar flag) { pid_t p = fork(); if (p > 0) { /* the parent ignores the interrupt, quit and hangup signals */ oldsighup = signal(SIGHUP, SIG_IGN); oldsigtstp = signal(SIGTSTP, SIG_DFL); } else if (p == 0) { /* so they can be used to stop the child */ signal(SIGHUP, SIG_DFL); signal(SIGINT, SIG_DFL); signal(SIGQUIT, SIG_DFL); signal(SIGTSTP, SIG_DFL); if (flag & F_NOWAIT) setsid(); } if (p == -1) perror("fork"); return p; } static int join(pid_t p, uchar flag) { int status = 0xFFFF; if (!(flag & F_NOWAIT)) { /* wait for the child to exit */ do { } while (waitpid(p, &status, 0) == -1); if (WIFEXITED(status)) { status = WEXITSTATUS(status); DPRINTF_D(status); } } /* restore parent's signal handling */ signal(SIGHUP, oldsighup); signal(SIGTSTP, oldsigtstp); return status; } /* * Spawns a child process. Behaviour can be controlled using flag. * Limited to 2 arguments to a program, flag works on bit set. */ static int spawn(char *file, char *arg1, char *arg2, const char *dir, uchar flag) { pid_t pid; int status, retstatus = 0xFFFF; char *argv[EXEC_ARGS_MAX] = {0}; char *cmd = NULL; if (!file || !*file) return retstatus; /* Swap args if the first arg is NULL and second isn't */ if (!arg1 && arg2) { arg1 = arg2; arg2 = NULL; } if (flag & F_MULTI) { size_t len = strlen(file) + 1; cmd = (char *)malloc(len); if (!cmd) { DPRINTF_S("malloc()!"); return retstatus; } xstrlcpy(cmd, file, len); status = parseargs(cmd, argv); if (status == -1 || status > (EXEC_ARGS_MAX - 3)) { /* arg1, arg2 and last NULL */ free(cmd); DPRINTF_S("NULL or too many args"); return retstatus; } argv[status++] = arg1; argv[status] = arg2; } else { argv[0] = file; argv[1] = arg1; argv[2] = arg2; } if (flag & F_NORMAL) exitcurses(); pid = xfork(flag); if (pid == 0) { if (dir && chdir(dir) == -1) _exit(1); /* Suppress stdout and stderr */ if (flag & F_NOTRACE) { int fd = open("/dev/null", O_WRONLY, 0200); dup2(fd, 1); dup2(fd, 2); close(fd); } execvp(*argv, argv); _exit(1); } else { retstatus = join(pid, flag); DPRINTF_D(pid); if (flag & F_NORMAL) { if (flag & F_CMD) { printf("\nPress Enter to continue"); getchar(); } refresh(); } free(cmd); } return retstatus; } /* Get program name from env var, else return fallback program */ static char *xgetenv(const char *name, char *fallback) { char *value = getenv(name); return value && value[0] ? value : fallback; } /* Checks if an env variable is set to 1 */ static bool xgetenv_set(const char *name) { char *value = getenv(name); if (value && value[0] == '1' && !value[1]) return TRUE; return FALSE; } /* Check if a dir exists, IS a dir and is readable */ static bool xdiraccess(const char *path) { DIR *dirp = opendir(path); if (!dirp) { printwarn(NULL); return FALSE; } closedir(dirp); return TRUE; } static void cpstr(char *buf) { snprintf(buf, CMD_LEN_MAX, #ifdef __linux__ "xargs -0 -a %s -%c src %s src .", g_cppath, REPLACE_STR, cp); #else "cat %s | xargs -0 -o -%c src cp -iRp src .", g_cppath, REPLACE_STR); #endif } static void mvstr(char *buf) { snprintf(buf, CMD_LEN_MAX, #ifdef __linux__ "xargs -0 -a %s -%c src %s src .", g_cppath, REPLACE_STR, mv); #else "cat %s | xargs -0 -o -%c src mv -i src .", g_cppath, REPLACE_STR); #endif } static void rmmulstr(char *buf) { if (cfg.trash) { snprintf(buf, CMD_LEN_MAX, #ifdef __linux__ "xargs -0 -a %s trash-put", g_cppath); #else "cat %s | xargs -0 trash-put", g_cppath); #endif } else { snprintf(buf, CMD_LEN_MAX, #ifdef __linux__ "xargs -0 -a %s rm -%cr", g_cppath, confirm_force()); #else "cat %s | xargs -0 -o rm -%cr", g_cppath, confirm_force()); #endif } } static void xrm(char *path) { if (cfg.trash) spawn("trash-put", path, NULL, NULL, F_NORMAL); else { char rm_opts[] = "-ir"; rm_opts[1] = confirm_force(); spawn("rm", rm_opts, path, NULL, F_NORMAL); } } static bool batch_rename(const char *path) { int fd1, fd2, i; uint count = 0, lines = 0; bool dir = FALSE, ret = FALSE; const char renamecmd[] = "awk 'FNR==NR{a[NR]=$0} a[FNR]!=$0{printf \"%%s\\0%%s\\0\",a[FNR],$0}' %s %s | xargs -0 -n2 mv 2>/dev/null"; char foriginal[TMP_LEN_MAX] = {0}; char buf[sizeof(renamecmd) + (PATH_MAX << 1)]; if ((fd1 = create_tmp_file()) == -1) return ret; xstrlcpy(foriginal, g_tmpfpath, strlen(g_tmpfpath)+1); if ((fd2 = create_tmp_file()) == -1) { unlink(foriginal); close(fd1); return ret; } if (!copybufpos) { if (!ndents) return TRUE; for (i = 0; i < ndents; ++i) appendfpath(dents[i].name, NAME_MAX); dir = TRUE; } selectiontofd(fd1, &count); selectiontofd(fd2, NULL); close(fd2); if (dir) copybufpos = 0; spawn(editor, g_tmpfpath, NULL, path, F_CLI); /* Reopen file descriptor to get updated contents */ if ((fd2 = open(g_tmpfpath, O_RDONLY)) == -1) goto finish; while ((i = read(fd2, buf, sizeof(buf))) > 0) { while (i) lines += (buf[--i] == '\n'); } if (i < 0) goto finish; DPRINTF_U(count); DPRINTF_U(lines); if (count != lines) { DPRINTF_S("cannot delete files"); goto finish; } snprintf(buf, sizeof(buf), renamecmd, foriginal, g_tmpfpath); spawn("sh", "-c", buf, path, F_NORMAL); ret = TRUE; finish: if (fd1 >= 0) close(fd1); unlink(foriginal); if (fd2 >= 0) close(fd2); unlink(g_tmpfpath); return ret; } static void get_archive_cmd(char *cmd, char *archive) { if (getutil(utils[ATOOL])) xstrlcpy(cmd, "atool -a", ARCHIVE_CMD_LEN); else if (getutil(utils[BSDTAR])) xstrlcpy(cmd, "bsdtar -acvf", ARCHIVE_CMD_LEN); else if (is_suffix(archive, ".zip")) xstrlcpy(cmd, "zip -r", ARCHIVE_CMD_LEN); else xstrlcpy(cmd, "tar -acvf", ARCHIVE_CMD_LEN); } static void archive_selection(const char *cmd, const char *archive, const char *curpath) { char *buf = (char *)malloc(CMD_LEN_MAX * sizeof(char)); snprintf(buf, CMD_LEN_MAX, "awk 'BEGIN{RS=\"\\0\"} {gsub(\"%s/\", \"\", $0); printf \"%%s\\0\", $0}' %s | xargs -0 %s %s", curpath, g_cppath, cmd, archive); spawn("sh", "-c", buf, curpath, F_NORMAL); free(buf); } static bool write_lastdir(const char *curpath) { bool ret = TRUE; size_t len = strlen(cfgdir); xstrlcpy(cfgdir + len, "/.lastd", 8); DPRINTF_S(cfgdir); FILE *fp = fopen(cfgdir, "w"); if (fp) { if (fprintf(fp, "cd \"%s\"", curpath) < 0) ret = FALSE; fclose(fp); } else ret = FALSE; return ret; } static int digit_compare(const char *a, const char *b) { while (*a && *b && *a == *b) ++a, ++b; return *a - *b; } /* * We assume none of the strings are NULL. * * Let's have the logic to sort numeric names in numeric order. * E.g., the order '1, 10, 2' doesn't make sense to human eyes. * * If the absolute numeric values are same, we fallback to alphasort. */ static int xstricmp(const char * const s1, const char * const s2) { const char *c1 = s1, *c2 = s2, *m1, *m2; int count1 = 0, count2 = 0, bias; char sign[2] = {'+', '+'}; while (ISBLANK(*c1)) ++c1; while (ISBLANK(*c2)) ++c2; if (*c1 == '-' || *c1 == '+') { if (*c1 == '-') sign[0] = '-'; ++c1; } if (*c2 == '-' || *c2 == '+') { if (*c2 == '-') sign[1] = '-'; ++c2; } if (xisdigit(*c1) && xisdigit(*c2)) { while (*c1 == '0') ++c1; m1 = c1; while (*c2 == '0') ++c2; m2 = c2; while (xisdigit(*c1)) { ++count1; ++c1; } while (ISBLANK(*c1)) ++c1; while (xisdigit(*c2)) { ++count2; ++c2; } while (ISBLANK(*c2)) ++c2; if (*c1 && !*c2) return 1; if (!*c1 && *c2) return -1; if (!*c1 && !*c2) { if (sign[0] != sign[1]) return ((sign[0] == '+') ? 1 : -1); if (count1 > count2) return 1; if (count1 < count2) return -1; bias = digit_compare(m1, m2); if (bias) return bias; } } return strcoll(s1, s2); } /* * Version comparison * * The code for version compare is a modified version of the GLIBC * and uClibc implementation of strverscmp(). The source is here: * https://elixir.bootlin.com/uclibc-ng/latest/source/libc/string/strverscmp.c */ /* * Compare S1 and S2 as strings holding indices/version numbers, * returning less than, equal to or greater than zero if S1 is less than, * equal to or greater than S2 (for more info, see the texinfo doc). * * Ignores case. */ static int xstrverscasecmp(const char * const s1, const char * const s2) { const uchar *p1 = (const uchar *)s1; const uchar *p2 = (const uchar *)s2; uchar c1, c2; int state, diff; /* * Symbol(s) 0 [1-9] others * Transition (10) 0 (01) d (00) x */ static const uint8_t next_state[] = { /* state x d 0 */ /* S_N */ S_N, S_I, S_Z, /* S_I */ S_N, S_I, S_I, /* S_F */ S_N, S_F, S_F, /* S_Z */ S_N, S_F, S_Z }; static const int8_t result_type[] __attribute__ ((aligned)) = { /* state x/x x/d x/0 d/x d/d d/0 0/x 0/d 0/0 */ /* S_N */ VCMP, VCMP, VCMP, VCMP, VLEN, VCMP, VCMP, VCMP, VCMP, /* S_I */ VCMP, -1, -1, 1, VLEN, VLEN, 1, VLEN, VLEN, /* S_F */ VCMP, VCMP, VCMP, VCMP, VCMP, VCMP, VCMP, VCMP, VCMP, /* S_Z */ VCMP, 1, 1, -1, VCMP, VCMP, -1, VCMP, VCMP }; if (p1 == p2) return 0; c1 = TOUPPER(*p1); ++p1; c2 = TOUPPER(*p2); ++p2; /* Hint: '0' is a digit too. */ state = S_N + ((c1 == '0') + (xisdigit(c1) != 0)); while ((diff = c1 - c2) == 0) { if (c1 == '\0') return diff; state = next_state[state]; c1 = TOUPPER(*p1); ++p1; c2 = TOUPPER(*p2); ++p2; state += (c1 == '0') + (xisdigit(c1) != 0); } state = result_type[state * 3 + (((c2 == '0') + (xisdigit(c2) != 0)))]; switch (state) { case VCMP: return diff; case VLEN: while (xisdigit(*p1++)) if (!xisdigit(*p2++)) return 1; return xisdigit(*p2) ? -1 : diff; default: return state; } } static int (*cmpfn)(const char * const s1, const char * const s2) = &xstricmp; /* Return the integer value of a char representing HEX */ static char xchartohex(char c) { if (xisdigit(c)) return c - '0'; c = TOUPPER(c); if (c >= 'A' && c <= 'F') return c - 'A' + 10; return c; } static int setfilter(regex_t *regex, const char *filter) { int r = regcomp(regex, filter, REG_NOSUB | REG_EXTENDED | REG_ICASE); if (r != 0 && filter && filter[0] != '\0') mvprintw(xlines - 1, 0, "regex error: %d\n", r); return r; } static int visible_re(regex_t *regex, const char *fname, const char *fltr) { return regexec(regex, fname, 0, NULL, 0) == 0; } static int visible_str(regex_t *regex, const char *fname, const char *fltr) { return strcasestr(fname, fltr) != NULL; } static int (*filterfn)(regex_t *regex, const char *fname, const char *fltr) = &visible_re; static int entrycmp(const void *va, const void *vb) { const struct entry *pa = (pEntry)va; const struct entry *pb = (pEntry)vb; if ((pb->flags & DIR_OR_LINK_TO_DIR) != (pa->flags & DIR_OR_LINK_TO_DIR)) { if (pb->flags & DIR_OR_LINK_TO_DIR) return 1; return -1; } /* Sort based on specified order */ if (cfg.mtimeorder) { if (pb->t > pa->t) return 1; if (pb->t < pa->t) return -1; } else if (cfg.sizeorder) { if (pb->size > pa->size) return 1; if (pb->size < pa->size) return -1; } else if (cfg.blkorder) { if (pb->blocks > pa->blocks) return 1; if (pb->blocks < pa->blocks) return -1; } else if (cfg.extnorder && !(pb->flags & DIR_OR_LINK_TO_DIR)) { char *extna = xmemrchr((uchar *)pa->name, '.', strlen(pa->name)); char *extnb = xmemrchr((uchar *)pb->name, '.', strlen(pb->name)); if (extna || extnb) { if (!extna) return 1; if (!extnb) return -1; int ret = strcasecmp(extna, extnb); if (ret) return ret; } } return cmpfn(pa->name, pb->name); } /* * Returns SEL_* if key is bound and 0 otherwise. * Also modifies the run and env pointers (used on SEL_{RUN,RUNARG}). * The next keyboard input can be simulated by presel. */ static int nextsel(int presel) { int c = presel; uint i; const uint len = LEN(bindings); #ifdef LINUX_INOTIFY struct inotify_event *event; char inotify_buf[EVENT_BUF_LEN]; memset((void *)inotify_buf, 0x0, EVENT_BUF_LEN); #elif defined(BSD_KQUEUE) struct kevent event_data[NUM_EVENT_SLOTS]; memset((void *)event_data, 0x0, sizeof(struct kevent) * NUM_EVENT_SLOTS); #endif if (c == 0 || c == MSGWAIT) { c = getch(); DPRINTF_D(c); if (presel == MSGWAIT) { if (cfg.filtermode) c = FILTER; else c = CONTROL('L'); } } if (c == -1) { ++idle; /* * Do not check for directory changes in du mode. * A redraw forces du calculation. * Check for changes every odd second. */ #ifdef LINUX_INOTIFY if (!cfg.blkorder && inotify_wd >= 0 && (idle & 1)) { i = read(inotify_fd, inotify_buf, EVENT_BUF_LEN); if (i > 0) { char *ptr; for (ptr = inotify_buf; ptr + ((struct inotify_event *)ptr)->len < inotify_buf + i; ptr += sizeof(struct inotify_event) + event->len) { event = (struct inotify_event *) ptr; DPRINTF_D(event->wd); DPRINTF_D(event->mask); if (!event->wd) break; if (event->mask & INOTIFY_MASK) { c = CONTROL('L'); DPRINTF_S("issue refresh"); break; } } DPRINTF_S("inotify read done"); } } #elif defined(BSD_KQUEUE) if (!cfg.blkorder && event_fd >= 0 && idle & 1 && kevent(kq, events_to_monitor, NUM_EVENT_SLOTS, event_data, NUM_EVENT_FDS, >imeout) > 0) c = CONTROL('L'); #endif } else idle = 0; for (i = 0; i < len; ++i) if (c == bindings[i].sym) return bindings[i].act; return 0; } static inline void swap_ent(int id1, int id2) { struct entry _dent, *pdent1 = &dents[id1], *pdent2 = &dents[id2]; *(&_dent) = *pdent1; *pdent1 = *pdent2; *pdent2 = *(&_dent); } /* * Move non-matching entries to the end */ static int fill(const char *fltr, regex_t *re) { int count = 0; for (; count < ndents; ++count) { if (filterfn(re, dents[count].name, fltr) == 0) { if (count != --ndents) { swap_ent(count, ndents); --count; } continue; } } return ndents; } static int matches(const char *fltr) { regex_t re; /* Search filter */ if (cfg.filter_re && setfilter(&re, fltr) != 0) return -1; ndents = fill(fltr, &re); if (cfg.filter_re) regfree(&re); if (!ndents) return 0; qsort(dents, ndents, sizeof(*dents), entrycmp); return 0; } static int filterentries(char *path) { wchar_t *wln = (wchar_t *)alloca(sizeof(wchar_t) * REGEX_MAX); char *ln = g_ctx[cfg.curctx].c_fltr; wint_t ch[2] = {0}; int r, total = ndents, oldcur = cur, len; char *pln = g_ctx[cfg.curctx].c_fltr + 1; cur = 0; if (ndents && ln[0] == FILTER && *pln) { if (matches(pln) != -1) redraw(path); len = mbstowcs(wln, ln, REGEX_MAX); } else { ln[0] = wln[0] = FILTER; ln[1] = wln[1] = '\0'; len = 1; } cleartimeout(); curs_set(TRUE); printprompt(ln); while ((r = get_wch(ch)) != ERR) { switch (*ch) { #ifdef KEY_RESIZE case KEY_RESIZE: clearoldprompt(); if (len == 1) { cur = oldcur; redraw(path); cur = 0; } else redraw(path); printprompt(ln); continue; #endif case KEY_DC: // fallthrough case KEY_BACKSPACE: // fallthrough case '\b': // fallthrough case CONTROL('L'): // fallthrough case 127: /* handle DEL */ if (len == 1 && *ch != CONTROL('L')) { cur = oldcur; *ch = CONTROL('L'); goto end; } if (*ch == CONTROL('L')) while (len > 1) wln[--len] = '\0'; else wln[--len] = '\0'; if (len == 1) cur = oldcur; wcstombs(ln, wln, REGEX_MAX); ndents = total; if (matches(pln) != -1) redraw(path); printprompt(ln); continue; case KEY_MOUSE: // fallthrough case 27: /* Exit filter mode on Escape */ if (len == 1) cur = oldcur; goto end; } if (r == OK) { /* Handle all control chars in main loop */ if (*ch < ASCII_MAX && keyname(*ch)[0] == '^' && *ch != '^') { if (len == 1) cur = oldcur; goto end; } switch (*ch) { case '\r': /* with nonl(), this is ENTER key value */ if (len == 1) { cur = oldcur; goto end; } if (matches(pln) == -1) goto end; redraw(path); goto end; case '/': /* works as Leader key in filter mode */ *ch = CONTROL('_'); // fallthrough if (len == 1) cur = oldcur; goto end; case '?': /* '?' is an invalid regex, show help instead */ if (len == 1) { cur = oldcur; goto end; } // fallthrough default: /* Reset cur in case it's a repeat search */ if (len == 1) cur = 0; if (len == REGEX_MAX - 1) break; wln[len] = (wchar_t)*ch; wln[++len] = '\0'; wcstombs(ln, wln, REGEX_MAX); /* Forward-filtering optimization: * - new matches can only be a subset of current matches. */ /* ndents = total; */ if (matches(pln) == -1) continue; /* If the only match is a dir, auto-select and cd into it */ if (ndents == 1 && cfg.filtermode && cfg.autoselect && S_ISDIR(dents[0].mode)) { *ch = KEY_ENTER; cur = 0; goto end; } /* * redraw() should be above the auto-select optimization, for * the case where there's an issue with dir auto-select, say, * due to a permission problem. The transition is _jumpy_ in * case of such an error. However, we optimize for successful * cases where the dir has permissions. This skips a redraw(). */ redraw(path); printprompt(ln); } } else { if (len == 1) cur = oldcur; goto end; } } end: if (*ch != '\t') g_ctx[cfg.curctx].c_fltr[0] = g_ctx[cfg.curctx].c_fltr[1] = '\0'; move_cursor(cur, 0); curs_set(FALSE); settimeout(); /* Return keys for navigation etc. */ return *ch; } /* Show a prompt with input string and return the changes */ static char *xreadline(char *prefill, char *prompt) { size_t len, pos; int x, r; const int WCHAR_T_WIDTH = sizeof(wchar_t); wint_t ch[2] = {0}; wchar_t * const buf = malloc(sizeof(wchar_t) * CMD_LEN_MAX); if (!buf) errexit(); cleartimeout(); printprompt(prompt); if (prefill) { DPRINTF_S(prefill); len = pos = mbstowcs(buf, prefill, CMD_LEN_MAX); } else len = (size_t)-1; if (len == (size_t)-1) { buf[0] = '\0'; len = pos = 0; } x = getcurx(stdscr); curs_set(TRUE); while (1) { buf[len] = ' '; mvaddnwstr(xlines - 1, x, buf, len + 1); move(xlines - 1, x + wcswidth(buf, pos)); r = get_wch(ch); if (r != ERR) { if (r == OK) { switch (*ch) { case KEY_ENTER: // fallthrough case '\n': // fallthrough case '\r': goto END; case 127: // fallthrough case '\b': /* rhel25 sends '\b' for backspace */ if (pos > 0) { memmove(buf + pos - 1, buf + pos, (len - pos) * WCHAR_T_WIDTH); --len, --pos; } // fallthrough case '\t': /* TAB breaks cursor position, ignore it */ continue; case CONTROL('L'): printprompt(prompt); len = pos = 0; continue; case CONTROL('A'): pos = 0; continue; case CONTROL('E'): pos = len; continue; case CONTROL('U'): printprompt(prompt); memmove(buf, buf + pos, (len - pos) * WCHAR_T_WIDTH); len -= pos; pos = 0; continue; case 27: /* Exit prompt on Escape */ len = 0; goto END; } /* Filter out all other control chars */ if (*ch < ASCII_MAX && keyname(*ch)[0] == '^') continue; if (pos < CMD_LEN_MAX - 1) { memmove(buf + pos + 1, buf + pos, (len - pos) * WCHAR_T_WIDTH); buf[pos] = *ch; ++len, ++pos; continue; } } else { switch (*ch) { #ifdef KEY_RESIZE case KEY_RESIZE: clearoldprompt(); xlines = LINES; printprompt(prompt); break; #endif case KEY_LEFT: if (pos > 0) --pos; break; case KEY_RIGHT: if (pos < len) ++pos; break; case KEY_BACKSPACE: if (pos > 0) { memmove(buf + pos - 1, buf + pos, (len - pos) * WCHAR_T_WIDTH); --len, --pos; } break; case KEY_DC: if (pos < len) { memmove(buf + pos, buf + pos + 1, (len - pos - 1) * WCHAR_T_WIDTH); --len; } break; case KEY_END: pos = len; break; case KEY_HOME: pos = 0; break; default: break; } } } } END: curs_set(FALSE); settimeout(); clearprompt(); buf[len] = '\0'; pos = wcstombs(g_buf, buf, CMD_LEN_MAX - 1); if (pos >= CMD_LEN_MAX - 1) g_buf[CMD_LEN_MAX - 1] = '\0'; free(buf); return g_buf; } #ifndef NORL /* * Caller should check the value of presel to confirm if it needs to wait to show warning */ static char *getreadline(char *prompt, char *path, char *curpath, int *presel) { /* Switch to current path for readline(3) */ if (chdir(path) == -1) { printwarn(presel); return NULL; } exitcurses(); char *input = readline(prompt); refresh(); if (chdir(curpath) == -1) { printwarn(presel); free(input); return NULL; } if (input && input[0]) { add_history(input); xstrlcpy(g_buf, input, CMD_LEN_MAX); free(input); return g_buf; } free(input); return NULL; } #endif /* * Updates out with "dir/name or "/name" * Returns the number of bytes copied including the terminating NULL byte */ static size_t mkpath(char *dir, char *name, char *out) { size_t len; /* Handle absolute path */ if (name[0] == '/') return xstrlcpy(out, name, PATH_MAX); /* Handle root case */ if (istopdir(dir)) len = 1; else len = xstrlcpy(out, dir, PATH_MAX); out[len - 1] = '/'; // NOLINT return (xstrlcpy(out + len, name, PATH_MAX - len) + len); } /* * Create symbolic/hard link(s) to file(s) in selection list * Returns the number of links created */ static int xlink(char *suffix, char *path, char *buf, int *presel, int type) { int count = 0; char *pbuf = pcopybuf, *fname; size_t pos = 0, len, r; int (*link_fn)(const char *, const char *) = NULL; /* Check if selection is empty */ if (!copybufpos) { printwait(messages[NONE_SELECTED], presel); return -1; } if (type == 's') /* symbolic link */ link_fn = &symlink; else /* hard link */ link_fn = &link; while (pos < copybufpos) { len = strlen(pbuf); fname = xbasename(pbuf); r = mkpath(path, fname, buf); xstrlcpy(buf + r - 1, suffix, PATH_MAX - r - 1); if (!link_fn(pbuf, buf)) ++count; pos += len + 1; pbuf += len + 1; } if (!count) printwait("none created", presel); return count; } static bool parsekvpair(kv *kvarr, char **envcpy, const char *cfgstr, uchar maxitems) { int i = 0; char *nextkey; char *ptr = getenv(cfgstr); if (!ptr || !*ptr) return TRUE; *envcpy = strdup(ptr); ptr = *envcpy; nextkey = ptr; while (*ptr && i < maxitems) { if (ptr == nextkey) { kvarr[i].key = *ptr; if (*++ptr != ':') return FALSE; if (*++ptr == '\0') return FALSE; kvarr[i].val = ptr; ++i; } if (*ptr == ';') { /* Remove trailing space */ if (i > 0 && *(ptr - 1) == '/') *(ptr - 1) = '\0'; *ptr = '\0'; nextkey = ptr + 1; } ++ptr; } if (i < maxitems) { if (*kvarr[i - 1].val == '\0') return FALSE; kvarr[i].key = '\0'; } return TRUE; } /* * Get the value corresponding to a key * * NULL is returned in case of no match, path resolution failure etc. * buf would be modified, so check return value before access */ static char *get_kv_val(kv *kvarr, char *buf, int key, uchar max, bool path) { int r = 0; for (; kvarr[r].key && r < max; ++r) { if (kvarr[r].key == key) { if (!path) return kvarr[r].val; if (kvarr[r].val[0] == '~') { ssize_t len = strlen(home); ssize_t loclen = strlen(kvarr[r].val); if (!buf) buf = (char *)malloc(len + loclen); xstrlcpy(buf, home, len + 1); xstrlcpy(buf + len, kvarr[r].val + 1, loclen); return buf; } return realpath(kvarr[r].val, buf); } } DPRINTF_S("Invalid key"); return NULL; } static inline void resetdircolor(int flags) { if (cfg.dircolor && !(flags & DIR_OR_LINK_TO_DIR)) { attroff(COLOR_PAIR(cfg.curctx + 1) | A_BOLD); cfg.dircolor = 0; } } /* * Replace escape characters in a string with '?' * Adjust string length to maxcols if > 0; * Max supported str length: NAME_MAX; * * Interestingly, note that unescape() uses g_buf. What happens if * str also points to g_buf? In this case we assume that the caller * acknowledges that it's OK to lose the data in g_buf after this * call to unescape(). * The API, on its part, first converts str to multibyte (after which * it doesn't touch str anymore). Only after that it starts modifying * g_buf. This is a phased operation. */ static char *unescape(const char *str, uint maxcols) { static wchar_t wbuf[NAME_MAX + 1] __attribute__ ((aligned)); wchar_t *buf = wbuf; size_t lencount = 0; /* Convert multi-byte to wide char */ size_t len = mbstowcs(wbuf, str, NAME_MAX); while (*buf && lencount <= maxcols) { if (*buf <= '\x1f' || *buf == '\x7f') *buf = '\?'; ++buf; ++lencount; } len = lencount = wcswidth(wbuf, len); /* Reduce number of wide chars to max columns */ if (len > maxcols) { lencount = maxcols + 1; /* Reduce wide chars one by one till it fits */ while (len > maxcols) len = wcswidth(wbuf, --lencount); wbuf[lencount] = L'\0'; } /* Convert wide char to multi-byte */ wcstombs(g_buf, wbuf, NAME_MAX); return g_buf; } static char *coolsize(off_t size) { const char * const U = "BKMGTPEZY"; static char size_buf[12]; /* Buffer to hold human readable size */ off_t rem = 0; size_t ret; int i = 0; while (size >= 1024) { rem = size & (0x3FF); /* 1024 - 1 = 0x3FF */ size >>= 10; ++i; } if (i == 1) { rem = (rem * 1000) >> 10; rem /= 10; if (rem % 10 >= 5) { rem = (rem / 10) + 1; if (rem == 10) { ++size; rem = 0; } } else rem /= 10; } else if (i == 2) { rem = (rem * 1000) >> 10; if (rem % 10 >= 5) { rem = (rem / 10) + 1; if (rem == 100) { ++size; rem = 0; } } else rem /= 10; } else if (i > 0) { rem = (rem * 10000) >> 10; if (rem % 10 >= 5) { rem = (rem / 10) + 1; if (rem == 1000) { ++size; rem = 0; } } else rem /= 10; } if (i > 0 && i < 6 && rem) { ret = xstrlcpy(size_buf, xitoa(size), 12); size_buf[ret - 1] = '.'; char *frac = xitoa(rem); size_t toprint = i > 3 ? 3 : i; size_t len = strlen(frac); if (len < toprint) { size_buf[ret] = size_buf[ret + 1] = size_buf[ret + 2] = '0'; xstrlcpy(size_buf + ret + (toprint - len), frac, len + 1); } else xstrlcpy(size_buf + ret, frac, toprint + 1); ret += toprint; } else { ret = xstrlcpy(size_buf, size ? xitoa(size) : "0", 12); --ret; } size_buf[ret] = U[i]; size_buf[ret + 1] = '\0'; return size_buf; } static void printent(const struct entry *ent, int sel, uint namecols) { const char *pname = unescape(ent->name, namecols); const char cp = (ent->flags & FILE_COPIED) ? '+' : ' '; char ind[2] = {'\0', '\0'}; mode_t mode = ent->mode; switch (mode & S_IFMT) { case S_IFREG: if (mode & 0100) ind[0] = '*'; break; case S_IFDIR: ind[0] = '/'; break; case S_IFLNK: ind[0] = '@'; break; case S_IFSOCK: ind[0] = '='; break; case S_IFIFO: ind[0] = '|'; break; case S_IFBLK: // fallthrough case S_IFCHR: break; default: ind[0] = '?'; break; } /* Directories are always shown on top */ resetdircolor(ent->flags); if (sel) attron(A_REVERSE); printw("%c%s%s\n", cp, pname, ind); if (sel) attroff(A_REVERSE); } static void printent_long(const struct entry *ent, int sel, uint namecols) { char timebuf[18], permbuf[4], ind1 = '\0', ind2[] = "\0\0"; const char cp = (ent->flags & FILE_COPIED) ? '+' : ' '; /* Timestamp */ strftime(timebuf, 18, "%F %R", localtime(&ent->t)); /* Permissions */ permbuf[0] = '0' + ((ent->mode >> 6) & 7); permbuf[1] = '0' + ((ent->mode >> 3) & 7); permbuf[2] = '0' + (ent->mode & 7); permbuf[3] = '\0'; /* Trim escape chars from name */ const char *pname = unescape(ent->name, namecols); /* Directories are always shown on top */ resetdircolor(ent->flags); if (sel) attron(A_REVERSE); switch (ent->mode & S_IFMT) { case S_IFREG: if (ent->mode & 0100) printw("%c%-16.16s %s %8.8s* %s*\n", cp, timebuf, permbuf, coolsize(cfg.blkorder ? ent->blocks << BLK_SHIFT : ent->size), pname); else printw("%c%-16.16s %s %8.8s %s\n", cp, timebuf, permbuf, coolsize(cfg.blkorder ? ent->blocks << BLK_SHIFT : ent->size), pname); break; case S_IFDIR: if (cfg.blkorder) printw("%c%-16.16s %s %8.8s/ %s/\n", cp, timebuf, permbuf, coolsize(ent->blocks << BLK_SHIFT), pname); else printw("%c%-16.16s %s / %s/\n", cp, timebuf, permbuf, pname); break; case S_IFLNK: if (ent->flags & DIR_OR_LINK_TO_DIR) printw("%c%-16.16s %s @/ %s@\n", cp, timebuf, permbuf, pname); else printw("%c%-16.16s %s @ %s@\n", cp, timebuf, permbuf, pname); break; case S_IFSOCK: ind1 = ind2[0] = '='; // fallthrough case S_IFIFO: if (!ind1) ind1 = ind2[0] = '|'; // fallthrough case S_IFBLK: if (!ind1) ind1 = 'b'; // fallthrough case S_IFCHR: if (!ind1) ind1 = 'c'; // fallthrough default: if (!ind1) ind1 = ind2[0] = '?'; printw("%c%-16.16s %s %c %s%s\n", cp, timebuf, permbuf, ind1, pname, ind2); break; } if (sel) attroff(A_REVERSE); } static void (*printptr)(const struct entry *ent, int sel, uint namecols) = &printent; static void savecurctx(settings *curcfg, char *path, char *curname, int r /* next context num */) { settings cfg = *curcfg; bool copymode = cfg.copymode ? TRUE : FALSE; #ifdef DIR_LIMITED_COPY g_crc = 0; #endif /* Save current context */ xstrlcpy(g_ctx[cfg.curctx].c_name, curname, NAME_MAX + 1); g_ctx[cfg.curctx].c_cfg = cfg; if (g_ctx[r].c_cfg.ctxactive) { /* Switch to saved context */ /* Switch light/detail mode */ if (cfg.showdetail != g_ctx[r].c_cfg.showdetail) /* set the reverse */ printptr = cfg.showdetail ? &printent : &printent_long; cfg = g_ctx[r].c_cfg; } else { /* Setup a new context from current context */ g_ctx[r].c_cfg.ctxactive = 1; xstrlcpy(g_ctx[r].c_path, path, PATH_MAX); g_ctx[r].c_last[0] = '\0'; xstrlcpy(g_ctx[r].c_name, curname, NAME_MAX + 1); g_ctx[r].c_fltr[0] = g_ctx[r].c_fltr[1] = '\0'; g_ctx[r].c_cfg = cfg; g_ctx[r].c_cfg.runplugin = 0; } /* Continue copy mode */ cfg.copymode = copymode; cfg.curctx = r; *curcfg = cfg; } /* * Gets only a single line (that's what we need * for now) or shows full command output in pager. * * If page is valid, returns NULL */ static char *get_output(char *buf, const size_t bytes, const char *file, const char *arg1, const char *arg2, const bool page) { pid_t pid; int pipefd[2]; FILE *pf; int tmp, flags; char *ret = NULL; if (pipe(pipefd) == -1) errexit(); for (tmp = 0; tmp < 2; ++tmp) { /* Get previous flags */ flags = fcntl(pipefd[tmp], F_GETFL, 0); /* Set bit for non-blocking flag */ flags |= O_NONBLOCK; /* Change flags on fd */ fcntl(pipefd[tmp], F_SETFL, flags); } pid = fork(); if (pid == 0) { /* In child */ close(pipefd[0]); dup2(pipefd[1], STDOUT_FILENO); dup2(pipefd[1], STDERR_FILENO); close(pipefd[1]); execlp(file, file, arg1, arg2, NULL); _exit(1); } /* In parent */ waitpid(pid, &tmp, 0); close(pipefd[1]); if (!page) { pf = fdopen(pipefd[0], "r"); if (pf) { ret = fgets(buf, bytes, pf); close(pipefd[0]); } return ret; } pid = fork(); if (pid == 0) { /* Show in pager in child */ dup2(pipefd[0], STDIN_FILENO); close(pipefd[0]); spawn(pager, NULL, NULL, NULL, F_CLI); _exit(1); } /* In parent */ waitpid(pid, &tmp, 0); close(pipefd[0]); return NULL; } static inline bool getutil(char *util) { return spawn("which", util, NULL, NULL, F_NORMAL | F_NOTRACE) == 0; } /* * Follows the stat(1) output closely */ static bool show_stats(const char *fpath, const char *fname, const struct stat *sb) { int fd; char *p, *begin = g_buf; size_t r; FILE *fp; fd = create_tmp_file(); if (fd == -1) return FALSE; r = xstrlcpy(g_buf, "stat \"", PATH_MAX); r += xstrlcpy(g_buf + r - 1, fpath, PATH_MAX); g_buf[r - 2] = '\"'; g_buf[r - 1] = '\0'; DPRINTF_S(g_buf); fp = popen(g_buf, "r"); if (fp) { while (fgets(g_buf, CMD_LEN_MAX - 1, fp)) dprintf(fd, "%s", g_buf); pclose(fp); } if (S_ISREG(sb->st_mode)) { /* Show file(1) output */ p = get_output(g_buf, CMD_LEN_MAX, "file", "-b", fpath, FALSE); if (p) { dprintf(fd, "\n\n "); while (*p) { if (*p == ',') { *p = '\0'; dprintf(fd, " %s\n", begin); begin = p + 1; } ++p; } dprintf(fd, " %s", begin); } } dprintf(fd, "\n\n"); close(fd); spawn(pager, g_tmpfpath, NULL, NULL, F_CLI); unlink(g_tmpfpath); return TRUE; } static size_t get_fs_info(const char *path, bool type) { struct statvfs svb; if (statvfs(path, &svb) == -1) return 0; if (type == CAPACITY) return svb.f_blocks << ffs((int)(svb.f_bsize >> 1)); return svb.f_bavail << ffs((int)(svb.f_frsize >> 1)); } static bool show_mediainfo(const char *fpath, const char *arg) { if (!getutil(utils[cfg.metaviewer])) return FALSE; exitcurses(); get_output(NULL, 0, utils[cfg.metaviewer], fpath, arg, TRUE); refresh(); return TRUE; } /* List or extract archive */ static void handle_archive(char *fpath, const char *dir, char op) { char arg[] = "-tvf"; /* options for tar/bsdtar to list files */ char *util; if (getutil(utils[ATOOL])) { util = utils[ATOOL]; arg[1] = op; arg[2] = '\0'; } else if (getutil(utils[BSDTAR])) { util = utils[BSDTAR]; if (op == 'x') arg[1] = op; } else if (is_suffix(fpath, ".zip")) { util = utils[UNZIP]; arg[1] = (op == 'l') ? 'v' /* verbose listing */ : '\0'; arg[2] = '\0'; } else { util = utils[TAR]; if (op == 'x') arg[1] = op; } if (op == 'x') { /* extract */ spawn(util, arg, fpath, dir, F_NORMAL); } else { /* list */ exitcurses(); get_output(NULL, 0, util, arg, fpath, TRUE); refresh(); } } static char *visit_parent(char *path, char *newpath, int *presel) { char *dir; /* There is no going back */ if (istopdir(path)) { /* Continue in navigate-as-you-type mode, if enabled */ if (cfg.filtermode) *presel = FILTER; return NULL; } /* Use a copy as dirname() may change the string passed */ xstrlcpy(newpath, path, PATH_MAX); dir = dirname(newpath); if (access(dir, R_OK) == -1) { printwarn(presel); return NULL; } return dir; } static bool execute_file(int cur, char *path, char *newpath, int *presel) { if (!ndents) return FALSE; /* Check if this is a directory */ if (!S_ISREG(dents[cur].mode)) { printwait("not regular file", presel); return FALSE; } /* Check if file is executable */ if (!(dents[cur].mode & 0100)) { printwait("permission denied", presel); return FALSE; } mkpath(path, dents[cur].name, newpath); spawn(newpath, NULL, NULL, path, F_NORMAL); return TRUE; } static bool create_dir(const char *path) { if (!xdiraccess(path)) { if (errno != ENOENT) return FALSE; if (mkdir(path, 0755) == -1) return FALSE; } return TRUE; } static bool sshfs_mount(char *path, char *newpath, int *presel) { uchar flag = F_NORMAL; int r; char *tmp, *env, *cmd = "sshfs"; if (!getutil(cmd)) { printwait(messages[UTIL_MISSING], presel); return FALSE; } tmp = xreadline(NULL, "host: "); if (!tmp[0]) return FALSE; /* Create the mount point */ mkpath(cfgdir, tmp, newpath); if (!create_dir(newpath)) { printwait(strerror(errno), presel); return FALSE; } /* Convert "Host" to "Host:" */ r = strlen(tmp); tmp[r] = ':'; tmp[r + 1] = '\0'; env = getenv("NNN_SSHFS_OPTS"); if (env) flag |= F_MULTI; else env = cmd; /* Connect to remote */ if (spawn(env, tmp, newpath, NULL, flag)) { printwait("mount failed", presel); return FALSE; } return TRUE; } static bool sshfs_unmount(char *path, char *newpath, int *presel) { static char cmd[] = "fusermount3"; /* Arch Linux utility */ static bool found = FALSE; char *tmp; /* On Ubuntu it's fusermount */ if (!found && !getutil(cmd)) { cmd[10] = '\0'; found = TRUE; } tmp = xreadline(NULL, "host: "); if (!tmp[0]) return FALSE; /* Create the mount point */ mkpath(cfgdir, tmp, newpath); if (!xdiraccess(newpath)) { *presel = MSGWAIT; return FALSE; } if (spawn(cmd, "-u", newpath, NULL, F_NORMAL)) { printwait("unmount failed", presel); return FALSE; } return TRUE; } static void lock_terminal(void) { char *tmp = utils[LOCKER]; if (!getutil(tmp)) tmp = utils[CMATRIX];; spawn(tmp, NULL, NULL, NULL, F_NORMAL); } static void printkv(kv *kvarr, int fd, uchar max) { uchar i = 0; for (; i < max && kvarr[i].key; ++i) dprintf(fd, " %c: %s\n", (char)kvarr[i].key, kvarr[i].val); } /* * The help string tokens (each line) start with a HEX value * which indicates the number of spaces to print before the * particular token. This method was chosen instead of a flat * string because the number of bytes in help was increasing * the binary size by around a hundred bytes. This would only * have increased as we keep adding new options. */ static bool show_help(const char *path) { int i, fd; const char *start, *end; const char helpstr[] = { "0\n" "1NAVIGATION\n" "a↑ k Up PgUp ^U Scroll up\n" "a↓ j Down PgDn ^D Scroll down\n" "a← h Parent dir ~ ` @ - HOME, /, start, last\n" "8↵ → l Open file/dir . Toggle show hidden\n" "9g ^A First entry G ^E Last entry\n" "cb Pin current dir ^B Go to pinned dir\n" "7Tab ^I Next context d Toggle detail view\n" "9, ^/ Lead key N LeadN Context N\n" "c/ Filter/Lead Ins ^T Toggle nav-as-you-type\n" "aEsc Exit prompt ^L Redraw/clear prompt\n" "cq Quit context Lead' First file\n" "9Q ^Q Quit ^G QuitCD ? Help, config\n" "1FILES\n" "b^O Open with... n Create new/link\n" "cD File details ^R Rename/duplicate\n" "5⎵ ^K / Y Select entry/all r Batch rename\n" "9K ^Y Toggle selection y List selection\n" "cP Copy selection X Delete selection\n" "cV Move selection ^X Delete entry\n" "cf Create archive m M Brief/full mediainfo\n" "b^F Extract archive F List archive\n" "ce Edit in EDITOR p Open in PAGER\n" "1ORDER TOGGLES\n" "b^J du E Extn S Apparent du\n" "b^W Random s Size t Time modified\n" "1MISC\n" "9! ^] Shell L Lock C Execute entry\n" "9R ^V Pick plugin xK Run plugin key K\n" "cc SSHFS mount u Unmount\n" "b^P Prompt ^N Note = Launcher\n"}; fd = create_tmp_file(); if (fd == -1) return FALSE; start = end = helpstr; while (*end) { if (*end == '\n') { dprintf(fd, "%*c%.*s", xchartohex(*start), ' ', (int)(end - start), start + 1); start = end + 1; } ++end; } dprintf(fd, "\nVOLUME: %s of ", coolsize(get_fs_info(path, FREE))); dprintf(fd, "%s free\n\n", coolsize(get_fs_info(path, CAPACITY))); if (bookmark[0].val) { dprintf(fd, "BOOKMARKS\n"); printkv(bookmark, fd, BM_MAX); dprintf(fd, "\n"); } if (plug[0].val) { dprintf(fd, "PLUGIN KEYS\n"); printkv(plug, fd, PLUGIN_MAX); dprintf(fd, "\n"); } for (i = NNN_OPENER; i <= NNN_TRASH; ++i) { start = getenv(env_cfg[i]); if (start) dprintf(fd, "%s: %s\n", env_cfg[i], start); } if (g_cppath) dprintf(fd, "SELECTION FILE: %s\n", g_cppath); dprintf(fd, "\nv%s\n%s\n", VERSION, GENERAL_INFO); close(fd); spawn(pager, g_tmpfpath, NULL, NULL, F_CLI); unlink(g_tmpfpath); return TRUE; } static int sum_bsizes(const char *fpath, const struct stat *sb, int typeflag, struct FTW *ftwbuf) { if (sb->st_blocks && (typeflag == FTW_F || typeflag == FTW_D)) ent_blocks += sb->st_blocks; ++num_files; return 0; } static int sum_sizes(const char *fpath, const struct stat *sb, int typeflag, struct FTW *ftwbuf) { if (sb->st_size && (typeflag == FTW_F || typeflag == FTW_D)) ent_blocks += sb->st_size; ++num_files; return 0; } static void dentfree(void) { free(pnamebuf); free(dents); } static int dentfill(char *path, struct entry **dents) { static uint open_max; int n = 0, count, flags = 0; ulong num_saved; struct dirent *dp; char *namep, *pnb, *buf = NULL; struct entry *dentp; size_t off = 0, namebuflen = NAMEBUF_INCR; struct stat sb_path, sb; DIR *dirp = opendir(path); if (!dirp) return 0; int fd = dirfd(dirp); if (cfg.blkorder) { num_files = 0; dir_blocks = 0; buf = (char *)alloca(strlen(path) + NAME_MAX + 2); if (fstatat(fd, path, &sb_path, 0) == -1) { closedir(dirp); printwarn(NULL); return 0; } /* Increase current open file descriptor limit */ if (!open_max) open_max = max_openfds(); } dp = readdir(dirp); if (!dp) goto exit; if (cfg.blkorder || dp->d_type == DT_UNKNOWN) { /* * Optimization added for filesystems which support dirent.d_type * see readdir(3) * Known drawbacks: * - the symlink size is set to 0 * - the modification time of the symlink is set to that of the target file */ flags = AT_SYMLINK_NOFOLLOW; } do { namep = dp->d_name; /* Skip self and parent */ if ((namep[0] == '.' && (namep[1] == '\0' || (namep[1] == '.' && namep[2] == '\0')))) continue; if (!cfg.showhidden && namep[0] == '.') { if (!cfg.blkorder) continue; if (fstatat(fd, namep, &sb, AT_SYMLINK_NOFOLLOW) == -1) continue; if (S_ISDIR(sb.st_mode)) { if (sb_path.st_dev == sb.st_dev) { ent_blocks = 0; mkpath(path, namep, buf); mvprintw(xlines - 1, 0, "scanning %s [^C aborts]\n", xbasename(buf)); refresh(); if (nftw(buf, nftw_fn, open_max, FTW_MOUNT | FTW_PHYS) == -1) { DPRINTF_S("nftw failed"); dir_blocks += (cfg.apparentsz ? sb.st_size : sb.st_blocks); } else dir_blocks += ent_blocks; if (interrupted) { closedir(dirp); return n; } } } else { dir_blocks += (cfg.apparentsz ? sb.st_size : sb.st_blocks); ++num_files; } continue; } if (fstatat(fd, namep, &sb, flags) == -1) { /* List a symlink with target missing */ if (!flags && errno == ENOENT) { if (fstatat(fd, namep, &sb, AT_SYMLINK_NOFOLLOW) == -1) { DPRINTF_S(namep); DPRINTF_S(strerror(errno)); continue; } } else { DPRINTF_S(namep); DPRINTF_S(strerror(errno)); continue; } } if (n == total_dents) { total_dents += ENTRY_INCR; *dents = xrealloc(*dents, total_dents * sizeof(**dents)); if (!*dents) { free(pnamebuf); closedir(dirp); errexit(); } DPRINTF_P(*dents); } /* If not enough bytes left to copy a file name of length NAME_MAX, re-allocate */ if (namebuflen - off < NAME_MAX + 1) { namebuflen += NAMEBUF_INCR; pnb = pnamebuf; pnamebuf = (char *)xrealloc(pnamebuf, namebuflen); if (!pnamebuf) { free(*dents); closedir(dirp); errexit(); } DPRINTF_P(pnamebuf); /* realloc() may result in memory move, we must re-adjust if that happens */ if (pnb != pnamebuf) { dentp = *dents; dentp->name = pnamebuf; for (count = 1; count < n; ++dentp, ++count) /* Current filename starts at last filename start + length */ (dentp + 1)->name = (char *)((size_t)dentp->name + dentp->nlen); } } dentp = *dents + n; /* Selection file name */ dentp->name = (char *)((size_t)pnamebuf + off); dentp->nlen = xstrlcpy(dentp->name, namep, NAME_MAX + 1); off += dentp->nlen; /* Copy other fields */ dentp->t = sb.st_mtime; if (dp->d_type == DT_LNK && !flags) { /* Do not add sizes for links */ dentp->mode = (sb.st_mode & ~S_IFMT) | S_IFLNK; dentp->size = 0; } else { dentp->mode = sb.st_mode; dentp->size = sb.st_size; } dentp->flags = 0; if (cfg.blkorder) { if (S_ISDIR(sb.st_mode)) { ent_blocks = 0; num_saved = num_files + 1; mkpath(path, namep, buf); mvprintw(xlines - 1, 0, "scanning %s [^C aborts]\n", xbasename(buf)); refresh(); if (nftw(buf, nftw_fn, open_max, FTW_MOUNT | FTW_PHYS) == -1) { DPRINTF_S("nftw failed"); dentp->blocks = (cfg.apparentsz ? sb.st_size : sb.st_blocks); } else dentp->blocks = ent_blocks; if (sb_path.st_dev == sb.st_dev) // NOLINT dir_blocks += dentp->blocks; else num_files = num_saved; if (interrupted) { closedir(dirp); return n; } } else { dentp->blocks = (cfg.apparentsz ? sb.st_size : sb.st_blocks); dir_blocks += dentp->blocks; ++num_files; } } if (flags) { /* Flag if this is a dir or symlink to a dir */ if (S_ISLNK(sb.st_mode)) { sb.st_mode = 0; fstatat(fd, namep, &sb, 0); } if (S_ISDIR(sb.st_mode)) dentp->flags |= DIR_OR_LINK_TO_DIR; } else if (dp->d_type == DT_DIR || (dp->d_type == DT_LNK && S_ISDIR(sb.st_mode))) dentp->flags |= DIR_OR_LINK_TO_DIR; ++n; } while ((dp = readdir(dirp))); exit: /* Should never be null */ if (closedir(dirp) == -1) { dentfree(); errexit(); } return n; } /* * Return the position of the matching entry or 0 otherwise * Note there's no NULL check for fname */ static int dentfind(const char *fname, int n) { int i = 0; for (; i < n; ++i) if (xstrcmp(fname, dents[i].name) == 0) return i; return 0; } static void populate(char *path, char *lastname) { #ifdef DBGMODE struct timespec ts1, ts2; clock_gettime(CLOCK_REALTIME, &ts1); /* Use CLOCK_MONOTONIC on FreeBSD */ #endif ndents = dentfill(path, &dents); if (!ndents) return; if (!cfg.wild) qsort(dents, ndents, sizeof(*dents), entrycmp); #ifdef DBGMODE clock_gettime(CLOCK_REALTIME, &ts2); DPRINTF_U(ts2.tv_nsec - ts1.tv_nsec); #endif /* Find cur from history */ /* No NULL check for lastname, always points to an array */ if (!*lastname) move_cursor(0, 0); else move_cursor(dentfind(lastname, ndents), 0); } static void move_cursor(int target, int ignore_scrolloff) { int delta, scrolloff, onscreen = xlines - 4; target = MAX(0, MIN(ndents - 1, target)); delta = target - cur; cur = target; if (!ignore_scrolloff) { scrolloff = MIN(SCROLLOFF, onscreen >> 1); /* * When ignore_scrolloff is 1, the cursor can jump into the scrolloff * margin area, but when ignore_scrolloff is 0, act like a boa * constrictor and squeeze the cursor towards the middle region of the * screen by allowing it to move inward and disallowing it to move * outward (deeper into the scrolloff margin area). */ if (cur < curscroll + scrolloff && delta < 0) curscroll += delta; else if (cur > curscroll + onscreen - scrolloff - 1 && delta > 0) curscroll += delta; } curscroll = MIN(curscroll, MIN(cur, ndents - onscreen)); curscroll = MAX(curscroll, MAX(cur - (onscreen - 1), 0)); } static void redraw(char *path) { xlines = LINES; xcols = COLS; int ncols = (xcols <= PATH_MAX) ? xcols : PATH_MAX; int lastln = xlines, onscreen = xlines - 4; int i, attrs; char buf[12]; char c; --lastln; /* Clear screen */ erase(); /* Enforce scroll/cursor invariants */ move_cursor(cur, 1); #ifdef DIR_LIMITED_COPY if (cfg.copymode) if (g_crc != crc8fast((uchar *)dents, ndents * sizeof(struct entry))) { cfg.copymode = 0; DPRINTF_S("selection off"); } #endif /* Fail redraw if < than 11 columns, context info prints 10 chars */ if (ncols < 11) { printmsg("too few columns!"); return; } DPRINTF_D(cur); DPRINTF_S(path); printw("["); for (i = 0; i < CTX_MAX; ++i) { if (!g_ctx[i].c_cfg.ctxactive) printw("%d ", i + 1); else if (cfg.curctx != i) { attrs = COLOR_PAIR(i + 1) | A_BOLD | A_UNDERLINE; attron(attrs); printw("%d", i + 1); attroff(attrs); printw(" "); } else { /* Print current context in reverse */ attrs = COLOR_PAIR(i + 1) | A_BOLD | A_REVERSE; attron(attrs); printw("%d", i + 1); attroff(attrs); printw(" "); } } printw("\b] "); /* 10 chars printed in total for contexts - "[1 2 3 4] " */ attron(A_UNDERLINE); /* No text wrapping in cwd line, store the truncating char in c */ c = path[ncols - 11]; path[ncols - 11] = '\0'; printw("%s\n\n", path); attroff(A_UNDERLINE); path[ncols - 11] = c; /* Restore c */ /* Calculate the number of cols available to print entry name */ if (cfg.showdetail) { /* Fallback to light mode if less than 35 columns */ if (ncols < 36) { cfg.showdetail ^= 1; printptr = &printent; ncols -= 5; } else ncols -= 35; } else ncols -= 5; if (!cfg.wild) { attron(COLOR_PAIR(cfg.curctx + 1) | A_BOLD); cfg.dircolor = 1; } /* Print listing */ for (i = curscroll; i < ndents && i < curscroll + onscreen; ++i) { printptr(&dents[i], i == cur, ncols); } /* Must reset e.g. no files in dir */ if (cfg.dircolor) { attroff(COLOR_PAIR(cfg.curctx + 1) | A_BOLD); cfg.dircolor = 0; } if (ndents) { char sort[] = "\0 "; if (cfg.mtimeorder) sort[0] = 'T'; else if (cfg.sizeorder) sort[0] = 'S'; else if (cfg.extnorder) sort[0] = 'E'; /* We need to show filename as it may be truncated in directory listing */ if (!cfg.showdetail || !cfg.blkorder) mvprintw(lastln, 0, "%d/%d %s[%s]\n", cur + 1, ndents, sort, unescape(dents[cur].name, NAME_MAX)); else { xstrlcpy(buf, coolsize(dir_blocks << BLK_SHIFT), 12); c = cfg.apparentsz ? 'a' : 'd'; mvprintw(lastln, 0, "%d/%d %cu: %s (%lu files) free: %s [%s]\n", cur + 1, ndents, c, buf, num_files, coolsize(get_fs_info(path, FREE)), unescape(dents[cur].name, NAME_MAX)); } } else printmsg("0/0"); } static void browse(char *ipath) { char newpath[PATH_MAX] __attribute__ ((aligned)); char mark[PATH_MAX] __attribute__ ((aligned)); char rundir[PATH_MAX] __attribute__ ((aligned)); char runfile[NAME_MAX + 1] __attribute__ ((aligned)); int r = -1, fd, presel, ncp = 0, copystartid = 0, copyendid = 0, onscreen; enum action sel; bool dir_changed = FALSE; struct stat sb; char *path, *lastdir, *lastname, *dir, *tmp; MEVENT event; atexit(dentfree); /* setup first context */ xstrlcpy(g_ctx[0].c_path, ipath, PATH_MAX); /* current directory */ path = g_ctx[0].c_path; g_ctx[0].c_last[0] = g_ctx[0].c_name[0] = newpath[0] = mark[0] = '\0'; rundir[0] = runfile[0] = '\0'; lastdir = g_ctx[0].c_last; /* last visited directory */ lastname = g_ctx[0].c_name; /* last visited filename */ g_ctx[0].c_fltr[0] = g_ctx[0].c_fltr[1] = '\0'; g_ctx[0].c_cfg = cfg; /* current configuration */ cfg.filtermode ? (presel = FILTER) : (presel = 0); dents = xrealloc(dents, total_dents * sizeof(struct entry)); if (!dents) errexit(); /* Allocate buffer to hold names */ pnamebuf = (char *)xrealloc(pnamebuf, NAMEBUF_INCR); if (!pnamebuf) errexit(); begin: #ifdef LINUX_INOTIFY if ((presel == FILTER || dir_changed) && inotify_wd >= 0) { inotify_rm_watch(inotify_fd, inotify_wd); inotify_wd = -1; dir_changed = FALSE; } #elif defined(BSD_KQUEUE) if ((presel == FILTER || dir_changed) && event_fd >= 0) { close(event_fd); event_fd = -1; dir_changed = FALSE; } #endif /* Can fail when permissions change while browsing. * It's assumed that path IS a directory when we are here. */ if (access(path, R_OK) == -1) printwarn(&presel); populate(path, lastname); if (interrupted) { interrupted = FALSE; cfg.apparentsz = 0; cfg.blkorder = 0; BLK_SHIFT = 9; presel = CONTROL('L'); } #ifdef LINUX_INOTIFY if (presel != FILTER && inotify_wd == -1) inotify_wd = inotify_add_watch(inotify_fd, path, INOTIFY_MASK); #elif defined(BSD_KQUEUE) if (presel != FILTER && event_fd == -1) { #if defined(O_EVTONLY) event_fd = open(path, O_EVTONLY); #else event_fd = open(path, O_RDONLY); #endif if (event_fd >= 0) EV_SET(&events_to_monitor[0], event_fd, EVFILT_VNODE, EV_ADD | EV_CLEAR, KQUEUE_FFLAGS, 0, path); } #endif while (1) { redraw(path); nochange: /* Exit if parent has exited */ if (getppid() == 1) _exit(0); /* If CWD is deleted or moved or perms changed, find an accessible parent */ if (access(path, F_OK)) { DPRINTF_S("directory inaccessible"); /* Save history */ xstrlcpy(lastname, xbasename(path), NAME_MAX + 1); xstrlcpy(newpath, path, PATH_MAX); while (true) { dir = visit_parent(path, newpath, &presel); if (istopdir(path) || istopdir(newpath)) { if (!dir) dir = dirname(newpath); break; } if (!dir) { xstrlcpy(path, newpath, PATH_MAX); continue; } break; } xstrlcpy(path, dir, PATH_MAX); setdirwatch(); mvprintw(xlines - 1, 0, "cannot access directory\n"); xdelay(); goto begin; } sel = nextsel(presel); if (presel) presel = 0; switch (sel) { case SEL_CLICK: if (getmouse(&event) != OK) goto nochange; // fallthrough case SEL_BACK: /* Handle clicking on a context at the top */ if (sel == SEL_CLICK && event.bstate == BUTTON1_CLICKED && event.y == 0) { /* Get context from: "[1 2 3 4]..." */ r = event.x >> 1; /* If clicked after contexts, go to parent */ if (r >= CTX_MAX) sel = SEL_BACK; else if (0 <= r && r < CTX_MAX && r != cfg.curctx) { savecurctx(&cfg, path, dents[cur].name, r); /* Reset the pointers */ path = g_ctx[r].c_path; lastdir = g_ctx[r].c_last; lastname = g_ctx[r].c_name; setdirwatch(); goto begin; } } if (sel == SEL_BACK) { dir = visit_parent(path, newpath, &presel); if (!dir) goto nochange; /* Save last working directory */ xstrlcpy(lastdir, path, PATH_MAX); /* Save history */ xstrlcpy(lastname, xbasename(path), NAME_MAX + 1); xstrlcpy(path, dir, PATH_MAX); setdirwatch(); goto begin; } #if NCURSES_MOUSE_VERSION > 1 /* Scroll up */ if (event.bstate == BUTTON4_PRESSED && ndents) { move_cursor((cur + ndents - 1) % ndents, 0); break; } /* Scroll down */ if (event.bstate == BUTTON5_PRESSED && ndents) { move_cursor((cur + 1) % ndents, 0); break; } #endif /* Toggle filter mode on left click on last 2 lines */ if (event.y >= xlines - 2) { cfg.filtermode ^= 1; if (cfg.filtermode) { presel = FILTER; goto nochange; } /* Start watching the directory */ dir_changed = TRUE; if (ndents) copycurname(); goto begin; } /* Handle clicking on a file */ if (2 <= event.y && event.y <= ndents + 1) { r = curscroll + (event.y - 2); move_cursor(r, 1); /*Single click just selects, double click also opens */ if (event.bstate != BUTTON1_DOUBLE_CLICKED) break; } else { if (cfg.filtermode) presel = FILTER; goto nochange; // fallthrough } case SEL_NAV_IN: // fallthrough case SEL_GOIN: /* Cannot descend in empty directories */ if (!ndents) goto begin; mkpath(path, dents[cur].name, newpath); DPRINTF_S(newpath); /* Cannot use stale data in entry, file may be missing by now */ if (stat(newpath, &sb) == -1) { printwarn(&presel); goto nochange; } DPRINTF_U(sb.st_mode); switch (sb.st_mode & S_IFMT) { case S_IFDIR: if (access(newpath, R_OK) == -1) { printwarn(&presel); goto nochange; } /* Save last working directory */ xstrlcpy(lastdir, path, PATH_MAX); xstrlcpy(path, newpath, PATH_MAX); lastname[0] = '\0'; setdirwatch(); goto begin; case S_IFREG: { /* If opened as vim plugin and Enter/^M pressed, pick */ if (cfg.picker && sel == SEL_GOIN) { r = mkpath(path, dents[cur].name, newpath); appendfpath(newpath, r); writecp(pcopybuf, copybufpos - 1); return; } /* If open file is disabled on right arrow or `l`, return */ if (cfg.nonavopen && sel == SEL_NAV_IN) continue; /* Handle plugin selection mode */ if (cfg.runplugin) { if (!plugindir || (cfg.runctx != cfg.curctx) /* Must be in plugin directory to select plugin */ || (strcmp(path, plugindir) != 0)) continue; mkpath(path, dents[cur].name, newpath); /* Copy to path so we can return back to earlier dir */ xstrlcpy(path, rundir, PATH_MAX); if (runfile[0]) { xstrlcpy(lastname, runfile, NAME_MAX); spawn(newpath, lastname, NULL, path, F_NORMAL); runfile[0] = '\0'; } else spawn(newpath, NULL, NULL, path, F_NORMAL); rundir[0] = '\0'; cfg.runplugin = 0; setdirwatch(); goto begin; } /* If NNN_USE_EDITOR is set, open text in EDITOR */ if (cfg.useeditor && get_output(g_buf, CMD_LEN_MAX, "file", FILE_OPTS, newpath, FALSE) && g_buf[0] == 't' && g_buf[1] == 'e' && g_buf[2] == 'x' && g_buf[3] == g_buf[0] && g_buf[4] == '/') { spawn(editor, newpath, NULL, path, F_CLI); continue; } if (!sb.st_size) { printwait("empty: use edit or open with", &presel); goto nochange; } /* Invoke desktop opener as last resort */ spawn(opener, newpath, NULL, NULL, F_NOTRACE | F_NOWAIT); continue; } default: printwait("unsupported file", &presel); goto nochange; } case SEL_NEXT: if (ndents) move_cursor((cur + 1) % ndents, 0); break; case SEL_PREV: if (ndents) move_cursor((cur + ndents - 1) % ndents, 0); break; case SEL_PGDN: // fallthrough onscreen = xlines - 4; move_cursor(curscroll + (onscreen - 1), 1); curscroll += onscreen - 1; break; case SEL_CTRL_D: onscreen = xlines - 4; move_cursor(curscroll + (onscreen - 1), 1); curscroll += onscreen >> 1; break; case SEL_PGUP: // fallthrough onscreen = xlines - 4; move_cursor(curscroll, 1); curscroll -= onscreen - 1; break; case SEL_CTRL_U: onscreen = xlines - 4; move_cursor(curscroll, 1); curscroll -= onscreen >> 1; break; case SEL_HOME: move_cursor(0, 1); break; case SEL_END: move_cursor(ndents - 1, 1); break; case SEL_CDHOME: // fallthrough case SEL_CDBEGIN: // fallthrough case SEL_CDLAST: // fallthrough case SEL_CDROOT: // fallthrough case SEL_VISIT: switch (sel) { case SEL_CDHOME: dir = home; break; case SEL_CDBEGIN: dir = ipath; break; case SEL_CDLAST: dir = lastdir; break; case SEL_CDROOT: dir = "/"; break; default: /* case SEL_VISIT */ dir = mark; break; } if (dir[0] == '\0') { printwait("not set", &presel); goto nochange; } if (!xdiraccess(dir)) { presel = MSGWAIT; goto nochange; } if (strcmp(path, dir) == 0) goto nochange; /* SEL_CDLAST: dir pointing to lastdir */ xstrlcpy(newpath, dir, PATH_MAX); /* Save last working directory */ xstrlcpy(lastdir, path, PATH_MAX); xstrlcpy(path, newpath, PATH_MAX); lastname[0] = '\0'; DPRINTF_S(path); setdirwatch(); goto begin; case SEL_LEADER: // fallthrough case SEL_CYCLE: // fallthrough case SEL_CTX1: // fallthrough case SEL_CTX2: // fallthrough case SEL_CTX3: // fallthrough case SEL_CTX4: if (sel == SEL_CYCLE) fd = '>'; else if (sel >= SEL_CTX1 && sel <= SEL_CTX4) fd = sel - SEL_CTX1 + '1'; else fd = get_input(NULL); switch (fd) { case 'q': // fallthrough case '~': // fallthrough case '`': // fallthrough case '-': // fallthrough case '@': presel = fd; goto nochange; case '\'': for (r = 0; r < ndents; ++r) { if (!(dents[r].flags & DIR_OR_LINK_TO_DIR)) { move_cursor((r) % ndents, 0); break; } } if (r != ndents) continue;; goto nochange; case '>': // fallthrough case '.': // fallthrough case '<': // fallthrough case ',': r = cfg.curctx; if (fd == '>' || fd == '.') do r = (r + 1) & ~CTX_MAX; while (!g_ctx[r].c_cfg.ctxactive); else do r = (r + (CTX_MAX - 1)) & (CTX_MAX - 1); while (!g_ctx[r].c_cfg.ctxactive); // fallthrough fd = '1' + r; // fallthrough case '1': // fallthrough case '2': // fallthrough case '3': // fallthrough case '4': r = fd - '1'; /* Save the next context id */ if (cfg.curctx == r) { if (sel != SEL_CYCLE) continue; (r == CTX_MAX - 1) ? (r = 0) : ++r; snprintf(newpath, PATH_MAX, "Create context %d? [Enter]", r + 1); fd = get_input(newpath); if (fd != '\r') continue; } savecurctx(&cfg, path, dents[cur].name, r); /* Reset the pointers */ path = g_ctx[r].c_path; lastdir = g_ctx[r].c_last; lastname = g_ctx[r].c_name; setdirwatch(); goto begin; } if (!get_kv_val(bookmark, newpath, fd, BM_MAX, TRUE)) { printwait(messages[STR_INVBM_KEY], &presel); goto nochange; } if (!xdiraccess(newpath)) goto nochange; if (strcmp(path, newpath) == 0) break; lastname[0] = '\0'; /* Save last working directory */ xstrlcpy(lastdir, path, PATH_MAX); /* Save the newly opted dir in path */ xstrlcpy(path, newpath, PATH_MAX); DPRINTF_S(path); setdirwatch(); goto begin; case SEL_PIN: xstrlcpy(mark, path, PATH_MAX); printwait(mark, &presel); goto nochange; case SEL_FLTR: /* Unwatch dir if we are still in a filtered view */ #ifdef LINUX_INOTIFY if (inotify_wd >= 0) { inotify_rm_watch(inotify_fd, inotify_wd); inotify_wd = -1; } #elif defined(BSD_KQUEUE) if (event_fd >= 0) { close(event_fd); event_fd = -1; } #endif presel = filterentries(path); /* Save current */ if (ndents) copycurname(); if (presel == 27) { presel = 0; break; } goto nochange; case SEL_MFLTR: // fallthrough case SEL_TOGGLEDOT: // fallthrough case SEL_DETAIL: // fallthrough case SEL_FSIZE: // fallthrough case SEL_ASIZE: // fallthrough case SEL_BSIZE: // fallthrough case SEL_EXTN: // fallthrough case SEL_MTIME: // fallthrough case SEL_WILD: switch (sel) { case SEL_MFLTR: cfg.filtermode ^= 1; if (cfg.filtermode) { presel = FILTER; goto nochange; } /* Start watching the directory */ dir_changed = TRUE; break; case SEL_TOGGLEDOT: cfg.showhidden ^= 1; setdirwatch(); break; case SEL_DETAIL: cfg.showdetail ^= 1; cfg.showdetail ? (printptr = &printent_long) : (printptr = &printent); continue; case SEL_FSIZE: cfg.sizeorder ^= 1; cfg.mtimeorder = 0; cfg.apparentsz = 0; cfg.blkorder = 0; cfg.extnorder = 0; cfg.copymode = 0; cfg.wild = 0; break; case SEL_ASIZE: cfg.apparentsz ^= 1; if (cfg.apparentsz) { nftw_fn = &sum_sizes; cfg.blkorder = 1; BLK_SHIFT = 0; } else cfg.blkorder = 0; // fallthrough case SEL_BSIZE: if (sel == SEL_BSIZE) { if (!cfg.apparentsz) cfg.blkorder ^= 1; nftw_fn = &sum_bsizes; cfg.apparentsz = 0; BLK_SHIFT = ffs(S_BLKSIZE) - 1; } if (cfg.blkorder) { cfg.showdetail = 1; printptr = &printent_long; } cfg.mtimeorder = 0; cfg.sizeorder = 0; cfg.extnorder = 0; cfg.copymode = 0; cfg.wild = 0; break; case SEL_EXTN: cfg.extnorder ^= 1; cfg.sizeorder = 0; cfg.mtimeorder = 0; cfg.apparentsz = 0; cfg.blkorder = 0; cfg.copymode = 0; cfg.wild = 0; break; case SEL_MTIME: cfg.mtimeorder ^= 1; cfg.sizeorder = 0; cfg.apparentsz = 0; cfg.blkorder = 0; cfg.extnorder = 0; cfg.copymode = 0; cfg.wild = 0; break; default: /* SEL_WILD */ cfg.wild ^= 1; cfg.mtimeorder = 0; cfg.sizeorder = 0; cfg.apparentsz = 0; cfg.blkorder = 0; cfg.extnorder = 0; cfg.copymode = 0; setdirwatch(); goto nochange; } /* Save current */ if (ndents) copycurname(); goto begin; case SEL_STATS: if (!ndents) break; mkpath(path, dents[cur].name, newpath); if (lstat(newpath, &sb) == -1 || !show_stats(newpath, dents[cur].name, &sb)) { printwarn(&presel); goto nochange; } break; case SEL_MEDIA: // fallthrough case SEL_FMEDIA: // fallthrough case SEL_ARCHIVELS: // fallthrough case SEL_EXTRACT: // fallthrough case SEL_RUNEDIT: // fallthrough case SEL_RUNPAGE: if (!ndents) break; // fallthrough case SEL_REDRAW: // fallthrough case SEL_RENAMEALL: // fallthrough case SEL_HELP: // fallthrough case SEL_NOTE: // fallthrough case SEL_LOCK: { if (ndents) mkpath(path, dents[cur].name, newpath); r = TRUE; switch (sel) { case SEL_MEDIA: // fallthrough case SEL_FMEDIA: tmp = (sel == SEL_FMEDIA) ? "-f" : NULL; show_mediainfo(newpath, tmp); setdirwatch(); goto nochange; case SEL_ARCHIVELS: handle_archive(newpath, path, 'l'); break; case SEL_EXTRACT: handle_archive(newpath, path, 'x'); break; case SEL_REDRAW: if (ndents) copycurname(); goto begin; case SEL_RENAMEALL: if (!batch_rename(path)) { printwait("batch rename failed", &presel); goto nochange; } break; case SEL_HELP: r = show_help(path); break; case SEL_RUNEDIT: spawn(editor, dents[cur].name, NULL, path, F_CLI); break; case SEL_RUNPAGE: spawn(pager, dents[cur].name, NULL, path, F_CLI); break; case SEL_NOTE: { static char *notepath; notepath = notepath ? notepath : getenv(env_cfg[NNN_NOTE]); if (!notepath) { printwait("set NNN_NOTE", &presel); goto nochange; } spawn(editor, notepath, NULL, path, F_CLI); break; } default: /* SEL_LOCK */ lock_terminal(); break; } if (!r) { printwait(messages[UTIL_MISSING], &presel); goto nochange; } /* In case of successful operation, reload contents */ /* Continue in navigate-as-you-type mode, if enabled */ if (cfg.filtermode) presel = FILTER; /* Save current */ if (ndents) copycurname(); /* Repopulate as directory content may have changed */ goto begin; } case SEL_SEL: if (!ndents) goto nochange; if (cfg.copymode) { /* * Clear the selection file on first copy. * * This ensures that when the first file path is * copied into memory (but not written to tmp file * yet to save on writes), the tmp file is cleared. * The user may be in the middle of selection mode op * and issue a cp, mv of multi-rm assuming the files * in the copy list would be affected. However, these * ops read the source file paths from the tmp file. */ if (!ncp) writecp(NULL, 0); /* Do not select if already selected */ if (!(dents[cur].flags & FILE_COPIED)) { r = mkpath(path, dents[cur].name, newpath); appendfpath(newpath, r); ++ncp; dents[cur].flags |= FILE_COPIED; } /* move cursor to the next entry if this is not the last entry */ if (cur != ndents - 1) move_cursor((cur + 1) % ndents, 0); } else { r = mkpath(path, dents[cur].name, newpath); if (copybufpos) { resetcpind(); /* Keep the copy buf in sync */ copybufpos = 0; } appendfpath(newpath, r); writecp(newpath, r - 1); /* Truncate NULL from end */ spawn(copier, NULL, NULL, NULL, F_NOTRACE); dents[cur].flags |= FILE_COPIED; } break; case SEL_SELMUL: cfg.copymode ^= 1; if (cfg.copymode) { if (copybufpos) { resetcpind(); writecp(NULL, 0); copybufpos = 0; } g_crc = crc8fast((uchar *)dents, ndents * sizeof(struct entry)); copystartid = cur; ncp = 0; mvprintw(xlines - 1, 0, "selection on\n"); xdelay(); continue; } if (!ncp) { /* Handle range selection */ #ifndef DIR_LIMITED_COPY if (g_crc != crc8fast((uchar *)dents, ndents * sizeof(struct entry))) { cfg.copymode = 0; printwait("dir/content changed", &presel); goto nochange; } #endif if (cur < copystartid) { copyendid = copystartid; copystartid = cur; } else copyendid = cur; } // fallthrough case SEL_SELALL: if (sel == SEL_SELALL) { if (!ndents) goto nochange; cfg.copymode = 0; copybufpos = 0; ncp = 0; /* Override single/multi path selection */ copystartid = 0; copyendid = ndents - 1; } if ((!ncp && copystartid < copyendid) || sel == SEL_SELALL) { for (r = copystartid; r <= copyendid; ++r) { appendfpath(newpath, mkpath(path, dents[r].name, newpath)); dents[r].flags |= FILE_COPIED; } ncp = copyendid - copystartid + 1; mvprintw(xlines - 1, 0, "%d selected\n", ncp); xdelay(); } if (copybufpos) { /* File path(s) written to the buffer */ writecp(pcopybuf, copybufpos - 1); /* Truncate NULL from end */ spawn(copier, NULL, NULL, NULL, F_NOTRACE); if (ncp) { /* Some files cherry picked */ mvprintw(xlines - 1, 0, "%d selected\n", ncp); xdelay(); } } else { printwait("selection off", &presel); goto nochange; } continue; case SEL_SELLST: if (showcplist() || showcpfile()) { if (cfg.filtermode) presel = FILTER; break; } printwait(messages[NONE_SELECTED], &presel); goto nochange; case SEL_CP: case SEL_MV: case SEL_RMMUL: { if (!cpsafe()) { presel = MSGWAIT; goto nochange; } switch (sel) { case SEL_CP: cpstr(g_buf); break; case SEL_MV: mvstr(g_buf); break; default: /* SEL_RMMUL */ rmmulstr(g_buf); break; } spawn("sh", "-c", g_buf, path, F_NORMAL); if (ndents) copycurname(); if (cfg.filtermode) presel = FILTER; goto begin; } case SEL_RM: { if (!ndents) break; mkpath(path, dents[cur].name, newpath); xrm(newpath); /* Don't optimize cur if filtering is on */ if (!cfg.filtermode && cur && access(newpath, F_OK) == -1) move_cursor(cur - 1, 0); /* We reduce cur only if it is > 0, so it's at least 0 */ copycurname(); if (cfg.filtermode) presel = FILTER; goto begin; } case SEL_OPENWITH: // fallthrough case SEL_RENAME: if (!ndents) break; // fallthrough case SEL_ARCHIVE: // fallthrough case SEL_NEW: { int dup = 'n'; switch (sel) { case SEL_ARCHIVE: r = get_input("archive selection (else current)? [y/Y confirms]"); if (r == 'y' || r == 'Y') { if (!cpsafe()) { presel = MSGWAIT; goto nochange; } tmp = NULL; } else if (!ndents) { printwait("no files", &presel); goto nochange; } else tmp = dents[cur].name; tmp = xreadline(tmp, "archive name: "); break; case SEL_OPENWITH: #ifdef NORL tmp = xreadline(NULL, "open with: "); #else presel = 0; tmp = getreadline("open with: ", path, ipath, &presel); if (presel == MSGWAIT) goto nochange; #endif break; case SEL_NEW: tmp = xreadline(NULL, "name/link suffix [@ for none]: "); break; default: /* SEL_RENAME */ dup = get_input("Press 'r'(ename) / 'd'(uplicate)"); if (dup == 'r' || dup == 'd') { tmp = xreadline(dents[cur].name, ""); break; } tmp = NULL; } if (!tmp || !*tmp) break; /* Allow only relative, same dir paths */ if (tmp[0] == '/' || xstrcmp(xbasename(tmp), tmp) != 0) { printwait(messages[STR_INPUT_ID], &presel); goto nochange; } /* Confirm if app is CLI or GUI */ if (sel == SEL_OPENWITH) { r = get_input("cli mode? [y/Y confirms]"); (r == 'y' || r == 'Y') ? (r = F_CLI) : (r = F_NOWAIT | F_NOTRACE | F_MULTI); } switch (sel) { case SEL_ARCHIVE: { char cmd[ARCHIVE_CMD_LEN]; get_archive_cmd(cmd, tmp); (r == 'y' || r == 'Y') ? archive_selection(cmd, tmp, path) : spawn(cmd, tmp, dents[cur].name, path, F_NORMAL | F_MULTI); break; } case SEL_OPENWITH: mkpath(path, dents[cur].name, newpath); spawn(tmp, newpath, NULL, path, r); break; case SEL_RENAME: /* Skip renaming to same name */ if (strcmp(tmp, dents[cur].name) == 0) goto nochange; break; default: break; } /* Complete OPEN, LAUNCH, ARCHIVE operations */ if (sel != SEL_NEW && sel != SEL_RENAME) { /* Continue in navigate-as-you-type mode, if enabled */ if (cfg.filtermode) presel = FILTER; /* Save current */ copycurname(); /* Repopulate as directory content may have changed */ goto begin; } /* Open the descriptor to currently open directory */ fd = open(path, O_RDONLY | O_DIRECTORY); if (fd == -1) { printwarn(&presel); goto nochange; } /* Check if another file with same name exists */ if (faccessat(fd, tmp, F_OK, AT_SYMLINK_NOFOLLOW) != -1) { if (sel == SEL_RENAME) { /* Overwrite file with same name? */ r = get_input("overwrite? [y/Y confirms]"); if (r != 'y' && r != 'Y') { close(fd); break; } } else { /* Do nothing in case of NEW */ close(fd); printwait("entry exists", &presel); goto nochange; } } if (sel == SEL_RENAME) { /* Rename the file */ if (dup == 'd') spawn("cp -r", dents[cur].name, tmp, path, F_CLI | F_NOTRACE); else if (renameat(fd, dents[cur].name, fd, tmp) != 0) { close(fd); printwarn(&presel); goto nochange; } } else { /* Check if it's a dir or file */ r = get_input("create 'f'(ile) / 'd'(ir) / 's'(ym) / 'h'(ard)?"); if (r == 'f') { r = openat(fd, tmp, O_CREAT, 0666); close(r); } else if (r == 'd') { r = mkdirat(fd, tmp, 0777); } else if (r == 's' || r == 'h') { if (tmp[0] == '@' && tmp[1] == '\0') tmp[0] = '\0'; r = xlink(tmp, path, newpath, &presel, r); close(fd); if (r <= 0) goto nochange; if (cfg.filtermode) presel = FILTER; if (ndents) copycurname(); goto begin; } else { close(fd); break; } /* Check if file creation failed */ if (r == -1) { printwarn(&presel); close(fd); goto nochange; } } close(fd); xstrlcpy(lastname, tmp, NAME_MAX + 1); goto begin; } case SEL_EXEC: // fallthrough case SEL_SHELL: // fallthrough case SEL_PLUGKEY: // fallthrough case SEL_PLUGIN: // fallthrough case SEL_LAUNCH: // fallthrough case SEL_RUNCMD: switch (sel) { case SEL_EXEC: if (!execute_file(cur, path, newpath, &presel)) goto nochange; break; case SEL_SHELL: spawn(shell, NULL, NULL, path, F_CLI); break; case SEL_PLUGKEY: // fallthrough case SEL_PLUGIN: if (!plugindir) { printwait("plugins dir missing", &presel); goto nochange; } if (stat(plugindir, &sb) == -1) { printwarn(&presel); goto nochange; } /* Must be a directory */ if (!S_ISDIR(sb.st_mode)) break; if (sel == SEL_PLUGKEY) { r = get_input(""); tmp = get_kv_val(plug, NULL, r, PLUGIN_MAX, FALSE); if (!tmp) goto nochange; mkpath(plugindir, tmp, newpath); if (ndents) spawn(newpath, dents[cur].name, NULL, path, F_NORMAL); else spawn(newpath, NULL, NULL, path, F_NORMAL); break; } cfg.runplugin ^= 1; if (!cfg.runplugin && rundir[0]) { /* * If toggled, and still in the plugin dir, * switch to original directory */ if (strcmp(path, plugindir) == 0) { xstrlcpy(path, rundir, PATH_MAX); xstrlcpy(lastname, runfile, NAME_MAX); rundir[0] = runfile[0] = '\0'; setdirwatch(); goto begin; } break; } /* Check if directory is accessible */ if (!xdiraccess(plugindir)) goto nochange; xstrlcpy(rundir, path, PATH_MAX); xstrlcpy(path, plugindir, PATH_MAX); if (ndents) xstrlcpy(runfile, dents[cur].name, NAME_MAX); cfg.runctx = cfg.curctx; lastname[0] = '\0'; setdirwatch(); goto begin; case SEL_LAUNCH: if (getutil(utils[NLAUNCH])) { spawn(utils[NLAUNCH], "0", NULL, path, F_NORMAL); break; } // fallthrough default: /* SEL_RUNCMD */ #ifndef NORL if (cfg.picker) { #endif tmp = xreadline(NULL, "> "); #ifndef NORL } else { presel = 0; tmp = getreadline("> ", path, ipath, &presel); if (presel == MSGWAIT) goto nochange; } #endif if (tmp && tmp[0]) // NOLINT spawn(shell, "-c", tmp, path, F_CLI | F_CMD); } /* Continue in navigate-as-you-type mode, if enabled */ if (cfg.filtermode) presel = FILTER; /* Save current */ if (ndents) copycurname(); /* Repopulate as directory content may have changed */ goto begin; case SEL_SSHFS: if (!sshfs_mount(path, newpath, &presel)) goto nochange; lastname[0] = '\0'; /* Save last working directory */ xstrlcpy(lastdir, path, PATH_MAX); /* Switch to mount point */ xstrlcpy(path, newpath, PATH_MAX); setdirwatch(); goto begin; case SEL_UMOUNT: sshfs_unmount(path, newpath, &presel); goto nochange; case SEL_QUITCD: // fallthrough case SEL_QUIT: for (r = 0; r < CTX_MAX; ++r) if (r != cfg.curctx && g_ctx[r].c_cfg.ctxactive) { r = get_input("Quit all contexts? [Enter]"); break; } if (!(r == CTX_MAX || r == '\r')) break; if (sel == SEL_QUITCD) { /* In vim picker mode, clear selection and exit */ if (cfg.picker) { /* Picker mode: reset buffer or clear file */ if (copybufpos) cfg.pickraw ? copybufpos = 0 : writecp(NULL, 0); } else if (!write_lastdir(path)) { presel = MSGWAIT; goto nochange; } } return; case SEL_QUITCTX: fd = cfg.curctx; /* fd used as tmp var */ for (r = (fd + 1) & ~CTX_MAX; (r != fd) && !g_ctx[r].c_cfg.ctxactive; r = ((r + 1) & ~CTX_MAX)) { }; if (r != fd) { bool copymode = cfg.copymode ? TRUE : FALSE; g_ctx[fd].c_cfg.ctxactive = 0; /* Switch to next active context */ path = g_ctx[r].c_path; lastdir = g_ctx[r].c_last; lastname = g_ctx[r].c_name; /* Switch light/detail mode */ if (cfg.showdetail != g_ctx[r].c_cfg.showdetail) /* Set the reverse */ printptr = cfg.showdetail ? &printent : &printent_long; cfg = g_ctx[r].c_cfg; /* Continue copy mode */ cfg.copymode = copymode; cfg.curctx = r; setdirwatch(); goto begin; } return; default: if (xlines != LINES || xcols != COLS) { idle = 0; setdirwatch(); if (ndents) copycurname(); goto begin; } /* Locker */ if (idletimeout && idle == idletimeout) { idle = 0; lock_terminal(); if (ndents) copycurname(); goto begin; } goto nochange; } /* switch (sel) */ } } static void usage(void) { fprintf(stdout, "%s: nnn [-b key] [-d] [-e] [-H] [-i] [-n]\n" " [-p file] [-s] [-S] [-v] [-w] [-h] [PATH]\n\n" "The missing terminal file manager for X.\n\n" "positional args:\n" " PATH start dir [default: current dir]\n\n" "optional args:\n" " -b key open bookmark key\n" " -d detail mode\n" " -e use exiftool for media info\n" " -H show hidden files\n" " -i nav-as-you-type mode\n" " -n version sort\n" " -p file selection file (stdout if '-')\n" " -s string filters [default: regex]\n" " -S du mode\n" " -v show version\n" " -w wild load\n" " -h show help\n\n" "v%s\n%s\n", __func__, VERSION, GENERAL_INFO); } static bool setup_config(void) { size_t r, len; char *xdgcfg = getenv("XDG_CONFIG_HOME"); bool xdg = FALSE; /* Set up configuration file paths */ if (xdgcfg && xdgcfg[0]) { DPRINTF_S(xdgcfg); if (xdgcfg[0] == '~') { r = xstrlcpy(g_buf, home, PATH_MAX); xstrlcpy(g_buf + r - 1, xdgcfg + 1, PATH_MAX); xdgcfg = g_buf; DPRINTF_S(xdgcfg); } if (!xdiraccess(xdgcfg)) { xerror(); return FALSE; } len = strlen(xdgcfg) + 1 + 12; /* add length of "/nnn/plugins" */ xdg = TRUE; } if (!xdg) len = strlen(home) + 1 + 20; /* add length of "/.config/nnn/plugins" */ cfgdir = (char *)malloc(len); plugindir = (char *)malloc(len); if (!cfgdir || !plugindir) { xerror(); return FALSE; } if (xdg) { xstrlcpy(cfgdir, xdgcfg, len); r = len - 12; } else { r = xstrlcpy(cfgdir, home, len); /* Create ~/.config */ xstrlcpy(cfgdir + r - 1, "/.config", len - r); DPRINTF_S(cfgdir); if (!create_dir(cfgdir)) { xerror(); return FALSE; } r += 8; /* length of "/.config" */ } /* Create ~/.config/nnn */ xstrlcpy(cfgdir + r - 1, "/nnn", len - r); DPRINTF_S(cfgdir); if (!create_dir(cfgdir)) { xerror(); return FALSE; } /* Create ~/.config/nnn/plugins */ xstrlcpy(cfgdir + r + 4 - 1, "/plugins", 9); DPRINTF_S(cfgdir); xstrlcpy(plugindir, cfgdir, len); DPRINTF_S(plugindir); if (!create_dir(cfgdir)) { xerror(); return FALSE; } /* Reset to config path */ cfgdir[r + 3] = '\0'; DPRINTF_S(cfgdir); /* Set selection file path */ if (!cfg.picker) { /* Length of "/.config/nnn/.selection" */ g_cppath = (char *)malloc(len + 3); r = xstrlcpy(g_cppath, cfgdir, len + 3); xstrlcpy(g_cppath + r - 1, "/.selection", 12); DPRINTF_S(g_cppath); } return TRUE; } static bool set_tmp_path() { char *path; if (xdiraccess("/tmp")) g_tmpfplen = xstrlcpy(g_tmpfpath, "/tmp", TMP_LEN_MAX); else { path = getenv("TMPDIR"); if (path) g_tmpfplen = xstrlcpy(g_tmpfpath, path, TMP_LEN_MAX); else { fprintf(stderr, "set TMPDIR\n"); return FALSE; } } return TRUE; } static void cleanup(void) { free(g_cppath); free(plugindir); free(cfgdir); free(initpath); free(bmstr); free(pluginstr); #ifdef DBGMODE disabledbg(); #endif } int main(int argc, char *argv[]) { char *arg = NULL; int opt; while ((opt = getopt(argc, argv, "HSib:denp:svwh")) != -1) { switch (opt) { case 'S': cfg.blkorder = 1; nftw_fn = sum_bsizes; BLK_SHIFT = ffs(S_BLKSIZE) - 1; break; case 'd': cfg.showdetail = 1; printptr = &printent_long; break; case 'i': cfg.filtermode = 1; break; case 'b': arg = optarg; break; case 'e': cfg.metaviewer = EXIFTOOL; break; case 'H': cfg.showhidden = 1; break; case 'n': cmpfn = &xstrverscasecmp; break; case 'p': cfg.picker = 1; if (optarg[0] == '-' && optarg[1] == '\0') cfg.pickraw = 1; else { int fd = open(optarg, O_WRONLY | O_CREAT, S_IRUSR | S_IWUSR); if (fd == -1) { xerror(); return _FAILURE; } close(fd); g_cppath = realpath(optarg, NULL); unlink(g_cppath); } break; case 's': cfg.filter_re = 0; filterfn = &visible_str; break; case 'v': fprintf(stdout, "%s\n", VERSION); return _SUCCESS; case 'w': cfg.wild = 1; break; case 'h': usage(); return _SUCCESS; default: usage(); return _FAILURE; } } /* Confirm we are in a terminal */ if (!cfg.picker && !(isatty(0) && isatty(1))) exit(1); /* Get the context colors; copier used as tmp var */ copier = xgetenv(env_cfg[NNN_CONTEXT_COLORS], "4444"); opt = 0; while (opt < CTX_MAX) { if (*copier) { if (*copier < '0' || *copier > '7') { fprintf(stderr, "0 <= code <= 7\n"); return _FAILURE; } g_ctx[opt].color = *copier - '0'; ++copier; } else g_ctx[opt].color = 4; ++opt; } #ifdef DBGMODE enabledbg(); #endif atexit(cleanup); home = getenv("HOME"); if (!home) { fprintf(stderr, "set HOME\n"); return _FAILURE; } DPRINTF_S(home); if (!setup_config()) return _FAILURE; /* Get custom opener, if set */ opener = xgetenv(env_cfg[NNN_OPENER], utils[OPENER]); DPRINTF_S(opener); /* Parse bookmarks string */ if (!parsekvpair(bookmark, &bmstr, env_cfg[NNN_BMS], BM_MAX)) { fprintf(stderr, "%s\n", env_cfg[NNN_BMS]); return _FAILURE; } /* Parse plugins string */ if (!parsekvpair(plug, &pluginstr, "NNN_PLUG", PLUGIN_MAX)) { fprintf(stderr, "%s\n", "NNN_PLUG"); return _FAILURE; } if (arg) { /* Open a bookmark directly */ if (arg[1] || (initpath = get_kv_val(bookmark, NULL, *arg, BM_MAX, TRUE)) == NULL) { fprintf(stderr, "%s\n", messages[STR_INVBM_KEY]); return _FAILURE; } } else if (argc == optind) { /* Start in the current directory */ initpath = getcwd(NULL, PATH_MAX); if (!initpath) initpath = "/"; } else { arg = argv[optind]; if (strlen(arg) > 7 && arg[0] == 'f' && arg[1] == 'i' && arg[2] == 'l' && arg[3] == 'e' && arg[4] == ':' && arg[5] == '/' && arg[6] == '/') arg = arg + 7; initpath = realpath(arg, NULL); DPRINTF_S(initpath); if (!initpath) { xerror(); return _FAILURE; } /* * If nnn is set as the file manager, applications may try to open * files by invoking nnn. In that case pass the file path to the * desktop opener and exit. */ struct stat sb; if (stat(initpath, &sb) == -1) { xerror(); return _FAILURE; } if (S_ISREG(sb.st_mode)) { execlp(opener, opener, arg, NULL); return _SUCCESS; } } /* Edit text in EDITOR, if opted */ if (xgetenv_set(env_cfg[NNN_USE_EDITOR])) cfg.useeditor = 1; /* Get VISUAL/EDITOR */ editor = xgetenv(envs[VISUAL], xgetenv(envs[EDITOR], "vi")); DPRINTF_S(getenv(envs[VISUAL])); DPRINTF_S(getenv(envs[EDITOR])); DPRINTF_S(editor); /* Get PAGER */ pager = xgetenv(envs[PAGER], "less"); DPRINTF_S(pager); /* Get SHELL */ shell = xgetenv(envs[SHELL], "sh"); DPRINTF_S(shell); DPRINTF_S(getenv("PWD")); #ifdef LINUX_INOTIFY /* Initialize inotify */ inotify_fd = inotify_init1(IN_NONBLOCK); if (inotify_fd < 0) { xerror(); return _FAILURE; } #elif defined(BSD_KQUEUE) kq = kqueue(); if (kq < 0) { xerror(); return _FAILURE; } #endif /* Set nnn nesting level, idletimeout used as tmp var */ idletimeout = xatoi(getenv(env_cfg[NNNLVL])); setenv(env_cfg[NNNLVL], xitoa(++idletimeout), 1); /* Get locker wait time, if set */ idletimeout = xatoi(getenv(env_cfg[NNN_IDLE_TIMEOUT])); DPRINTF_U(idletimeout); if (xgetenv_set(env_cfg[NNN_TRASH])) cfg.trash = 1; /* Prefix for temporary files */ if (!set_tmp_path()) return _FAILURE; /* Get the clipboard copier, if set */ copier = getenv(env_cfg[NNN_COPIER]); /* Disable auto-select if opted */ if (xgetenv_set(env_cfg[NNN_NO_AUTOSELECT])) cfg.autoselect = 0; /* Disable opening files on right arrow and `l` */ if (xgetenv_set(env_cfg[NNN_RESTRICT_NAV_OPEN])) cfg.nonavopen = 1; #ifdef __linux__ if (!xgetenv_set(env_cfg[NNN_CP_MV_PROG])) { cp[5] = cp[4]; cp[2] = cp[4] = ' '; mv[5] = mv[4]; mv[2] = mv[4] = ' '; } #endif /* Ignore/handle certain signals */ struct sigaction act = {.sa_handler = sigint_handler}; if (sigaction(SIGINT, &act, NULL) < 0) { xerror(); return _FAILURE; } signal(SIGQUIT, SIG_IGN); /* Test initial path */ if (!xdiraccess(initpath)) { xerror(); return _FAILURE; } /* Set locale */ setlocale(LC_ALL, ""); #ifndef NORL #if RL_READLINE_VERSION >= 0x0603 /* readline would overwrite the WINCH signal hook */ rl_change_environment = 0; #endif /* Bind TAB to cycling */ rl_variable_bind("completion-ignore-case", "on"); #ifdef __linux__ rl_bind_key('\t', rl_menu_complete); #else rl_bind_key('\t', rl_complete); #endif read_history(NULL); #endif if (!initcurses()) return _FAILURE; browse(initpath); exitcurses(); #ifndef NORL write_history(NULL); #endif if (cfg.pickraw) { if (copybufpos) { opt = selectiontofd(1, NULL); if (opt != (int)(copybufpos)) xerror(); } } else if (!cfg.picker && g_cppath) unlink(g_cppath); /* Free the copy buffer */ free(pcopybuf); #ifdef LINUX_INOTIFY /* Shutdown inotify */ if (inotify_wd >= 0) inotify_rm_watch(inotify_fd, inotify_wd); close(inotify_fd); #elif defined(BSD_KQUEUE) if (event_fd >= 0) close(event_fd); close(kq); #endif return _SUCCESS; }