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Use a global buffer for isolated functions

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Arun Prakash Jana 2017-05-15 03:07:22 +05:30
parent a279f58b91
commit d01d689340
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GPG key ID: A75979F35C080412
1 changed files with 56 additions and 61 deletions
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117
nnn.c
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@ -151,7 +151,9 @@ static off_t blk_size;
static size_t fs_free; static size_t fs_free;
static int open_max; static int open_max;
static const double div_2_pow_10 = 1.0 / 1024.0; static const double div_2_pow_10 = 1.0 / 1024.0;
static const char *size_units[] = {"B", "K", "M", "G", "T", "P", "E", "Z", "Y"};
/* For use in functions which are isolated and don't return the buffer */
static char g_buf[MAX_CMD_LEN];
/* /*
* Layout: * Layout:
@ -445,7 +447,6 @@ getmime(char *file)
static int static int
setfilter(regex_t *regex, char *filter) setfilter(regex_t *regex, char *filter)
{ {
static char errbuf[LINE_MAX];
static size_t len; static size_t len;
static int r; static int r;
@ -454,8 +455,8 @@ setfilter(regex_t *regex, char *filter)
len = COLS; len = COLS;
if (len > LINE_MAX) if (len > LINE_MAX)
len = LINE_MAX; len = LINE_MAX;
regerror(r, regex, errbuf, len); regerror(r, regex, g_buf, len);
printmsg(errbuf); printmsg(g_buf);
} }
return r; return r;
} }
@ -813,7 +814,6 @@ static void
printent(struct entry *ent, int active) printent(struct entry *ent, int active)
{ {
static int ncols; static int ncols;
static char str[PATH_MAX + 16];
if (COLS > PATH_MAX + 16) if (COLS > PATH_MAX + 16)
ncols = PATH_MAX + 16; ncols = PATH_MAX + 16;
@ -821,25 +821,25 @@ printent(struct entry *ent, int active)
ncols = COLS; ncols = COLS;
if (S_ISDIR(ent->mode)) if (S_ISDIR(ent->mode))
snprintf(str, ncols, "%s%s/", CURSYM(active), snprintf(g_buf, ncols, "%s%s/", CURSYM(active),
replace_escape(ent->name)); replace_escape(ent->name));
else if (S_ISLNK(ent->mode)) else if (S_ISLNK(ent->mode))
snprintf(str, ncols, "%s%s@", CURSYM(active), snprintf(g_buf, ncols, "%s%s@", CURSYM(active),
replace_escape(ent->name)); replace_escape(ent->name));
else if (S_ISSOCK(ent->mode)) else if (S_ISSOCK(ent->mode))
snprintf(str, ncols, "%s%s=", CURSYM(active), snprintf(g_buf, ncols, "%s%s=", CURSYM(active),
replace_escape(ent->name)); replace_escape(ent->name));
else if (S_ISFIFO(ent->mode)) else if (S_ISFIFO(ent->mode))
snprintf(str, ncols, "%s%s|", CURSYM(active), snprintf(g_buf, ncols, "%s%s|", CURSYM(active),
replace_escape(ent->name)); replace_escape(ent->name));
else if (ent->mode & S_IXUSR) else if (ent->mode & S_IXUSR)
snprintf(str, ncols, "%s%s*", CURSYM(active), snprintf(g_buf, ncols, "%s%s*", CURSYM(active),
replace_escape(ent->name)); replace_escape(ent->name));
else else
snprintf(str, ncols, "%s%s", CURSYM(active), snprintf(g_buf, ncols, "%s%s", CURSYM(active),
replace_escape(ent->name)); replace_escape(ent->name));
printw("%s\n", str); printw("%s\n", g_buf);
} }
static void (*printptr)(struct entry *ent, int active) = &printent; static void (*printptr)(struct entry *ent, int active) = &printent;
@ -847,6 +847,7 @@ static void (*printptr)(struct entry *ent, int active) = &printent;
static char* static char*
coolsize(off_t size) coolsize(off_t size)
{ {
static const char *size_units[] = {"B", "K", "M", "G", "T", "P", "E", "Z", "Y"};
static char size_buf[12]; /* Buffer to hold human readable size */ static char size_buf[12]; /* Buffer to hold human readable size */
static int i; static int i;
static off_t fsize, tmp; static off_t fsize, tmp;
@ -872,7 +873,6 @@ static void
printent_long(struct entry *ent, int active) printent_long(struct entry *ent, int active)
{ {
static int ncols; static int ncols;
static char str[PATH_MAX + 32];
static char buf[18]; static char buf[18];
if (COLS > PATH_MAX + 32) if (COLS > PATH_MAX + 32)
@ -887,67 +887,67 @@ printent_long(struct entry *ent, int active)
if (!bsizeorder) { if (!bsizeorder) {
if (S_ISDIR(ent->mode)) if (S_ISDIR(ent->mode))
snprintf(str, ncols, "%s%-16.16s / %s/", snprintf(g_buf, ncols, "%s%-16.16s / %s/",
CURSYM(active), buf, replace_escape(ent->name)); CURSYM(active), buf, replace_escape(ent->name));
else if (S_ISLNK(ent->mode)) else if (S_ISLNK(ent->mode))
snprintf(str, ncols, "%s%-16.16s @ %s@", snprintf(g_buf, ncols, "%s%-16.16s @ %s@",
CURSYM(active), buf, replace_escape(ent->name)); CURSYM(active), buf, replace_escape(ent->name));
else if (S_ISSOCK(ent->mode)) else if (S_ISSOCK(ent->mode))
snprintf(str, ncols, "%s%-16.16s = %s=", snprintf(g_buf, ncols, "%s%-16.16s = %s=",
CURSYM(active), buf, replace_escape(ent->name)); CURSYM(active), buf, replace_escape(ent->name));
else if (S_ISFIFO(ent->mode)) else if (S_ISFIFO(ent->mode))
snprintf(str, ncols, "%s%-16.16s | %s|", snprintf(g_buf, ncols, "%s%-16.16s | %s|",
CURSYM(active), buf, replace_escape(ent->name)); CURSYM(active), buf, replace_escape(ent->name));
else if (S_ISBLK(ent->mode)) else if (S_ISBLK(ent->mode))
snprintf(str, ncols, "%s%-16.16s b %s", snprintf(g_buf, ncols, "%s%-16.16s b %s",
CURSYM(active), buf, replace_escape(ent->name)); CURSYM(active), buf, replace_escape(ent->name));
else if (S_ISCHR(ent->mode)) else if (S_ISCHR(ent->mode))
snprintf(str, ncols, "%s%-16.16s c %s", snprintf(g_buf, ncols, "%s%-16.16s c %s",
CURSYM(active), buf, replace_escape(ent->name)); CURSYM(active), buf, replace_escape(ent->name));
else if (ent->mode & S_IXUSR) else if (ent->mode & S_IXUSR)
snprintf(str, ncols, "%s%-16.16s %8.8s* %s*", snprintf(g_buf, ncols, "%s%-16.16s %8.8s* %s*",
CURSYM(active), buf, coolsize(ent->size), CURSYM(active), buf, coolsize(ent->size),
replace_escape(ent->name)); replace_escape(ent->name));
else else
snprintf(str, ncols, "%s%-16.16s %8.8s %s", snprintf(g_buf, ncols, "%s%-16.16s %8.8s %s",
CURSYM(active), buf, coolsize(ent->size), CURSYM(active), buf, coolsize(ent->size),
replace_escape(ent->name)); replace_escape(ent->name));
} else { } else {
if (S_ISDIR(ent->mode)) if (S_ISDIR(ent->mode))
snprintf(str, ncols, "%s%-16.16s %8.8s/ %s/", snprintf(g_buf, ncols, "%s%-16.16s %8.8s/ %s/",
CURSYM(active), buf, coolsize(ent->bsize << 9), CURSYM(active), buf, coolsize(ent->bsize << 9),
replace_escape(ent->name)); replace_escape(ent->name));
else if (S_ISLNK(ent->mode)) else if (S_ISLNK(ent->mode))
snprintf(str, ncols, "%s%-16.16s @ %s@", snprintf(g_buf, ncols, "%s%-16.16s @ %s@",
CURSYM(active), buf, CURSYM(active), buf,
replace_escape(ent->name)); replace_escape(ent->name));
else if (S_ISSOCK(ent->mode)) else if (S_ISSOCK(ent->mode))
snprintf(str, ncols, "%s%-16.16s = %s=", snprintf(g_buf, ncols, "%s%-16.16s = %s=",
CURSYM(active), buf, CURSYM(active), buf,
replace_escape(ent->name)); replace_escape(ent->name));
else if (S_ISFIFO(ent->mode)) else if (S_ISFIFO(ent->mode))
snprintf(str, ncols, "%s%-16.16s | %s|", snprintf(g_buf, ncols, "%s%-16.16s | %s|",
CURSYM(active), buf, CURSYM(active), buf,
replace_escape(ent->name)); replace_escape(ent->name));
else if (S_ISBLK(ent->mode)) else if (S_ISBLK(ent->mode))
snprintf(str, ncols, "%s%-16.16s b %s", snprintf(g_buf, ncols, "%s%-16.16s b %s",
CURSYM(active), buf, CURSYM(active), buf,
replace_escape(ent->name)); replace_escape(ent->name));
else if (S_ISCHR(ent->mode)) else if (S_ISCHR(ent->mode))
snprintf(str, ncols, "%s%-16.16s c %s", snprintf(g_buf, ncols, "%s%-16.16s c %s",
CURSYM(active), buf, CURSYM(active), buf,
replace_escape(ent->name)); replace_escape(ent->name));
else if (ent->mode & S_IXUSR) else if (ent->mode & S_IXUSR)
snprintf(str, ncols, "%s%-16.16s %8.8s* %s*", snprintf(g_buf, ncols, "%s%-16.16s %8.8s* %s*",
CURSYM(active), buf, coolsize(ent->bsize << 9), CURSYM(active), buf, coolsize(ent->bsize << 9),
replace_escape(ent->name)); replace_escape(ent->name));
else else
snprintf(str, ncols, "%s%-16.16s %8.8s %s", snprintf(g_buf, ncols, "%s%-16.16s %8.8s %s",
CURSYM(active), buf, coolsize(ent->bsize << 9), CURSYM(active), buf, coolsize(ent->bsize << 9),
replace_escape(ent->name)); replace_escape(ent->name));
} }
printw("%s\n", str); printw("%s\n", g_buf);
if (active) if (active)
attroff(A_REVERSE); attroff(A_REVERSE);
@ -1048,9 +1048,8 @@ get_output(char *buf, size_t bytes)
static int static int
show_stats(char* fpath, char* fname, struct stat *sb) show_stats(char* fpath, char* fname, struct stat *sb)
{ {
char buf[PATH_MAX + 16]; char *perms = get_lsperms(sb->st_mode, g_buf);
char *perms = get_lsperms(sb->st_mode, buf); char *p, *begin = g_buf;
char *p, *begin = buf;
char tmp[] = "/tmp/nnnXXXXXX"; char tmp[] = "/tmp/nnnXXXXXX";
int fd = mkstemp(tmp); int fd = mkstemp(tmp);
@ -1076,17 +1075,17 @@ show_stats(char* fpath, char* fname, struct stat *sb)
#else #else
dprintf(fd, "\n Size: %-15ld Blocks: %-10ld IO Block: %-6ld %s", dprintf(fd, "\n Size: %-15ld Blocks: %-10ld IO Block: %-6ld %s",
#endif #endif
sb->st_size, sb->st_blocks, sb->st_blksize, buf); sb->st_size, sb->st_blocks, sb->st_blksize, g_buf);
/* Show containing device, inode, hardlink count */ /* Show containing device, inode, hardlink count */
#ifdef __APPLE__ #ifdef __APPLE__
sprintf(buf, "%xh/%ud", sb->st_dev, sb->st_dev); sprintf(g_buf, "%xh/%ud", sb->st_dev, sb->st_dev);
dprintf(fd, "\n Device: %-15s Inode: %-11llu Links: %-9hu", dprintf(fd, "\n Device: %-15s Inode: %-11llu Links: %-9hu",
#else #else
sprintf(buf, "%lxh/%lud", sb->st_dev, sb->st_dev); sprintf(g_buf, "%lxh/%lud", sb->st_dev, sb->st_dev);
dprintf(fd, "\n Device: %-15s Inode: %-11lu Links: %-9lu", dprintf(fd, "\n Device: %-15s Inode: %-11lu Links: %-9lu",
#endif #endif
buf, sb->st_ino, sb->st_nlink); g_buf, sb->st_ino, sb->st_nlink);
/* Show major, minor number for block or char device */ /* Show major, minor number for block or char device */
if (perms[0] == 'b' || perms[0] == 'c') if (perms[0] == 'b' || perms[0] == 'c')
@ -1101,21 +1100,21 @@ show_stats(char* fpath, char* fname, struct stat *sb)
sb->st_gid, (getgrgid(sb->st_gid))->gr_name); sb->st_gid, (getgrgid(sb->st_gid))->gr_name);
/* Show last access time */ /* Show last access time */
strftime(buf, 40, "%a %d-%b-%Y %T %z,%Z", localtime(&sb->st_atime)); strftime(g_buf, 40, "%a %d-%b-%Y %T %z,%Z", localtime(&sb->st_atime));
dprintf(fd, "\n\n Access: %s", buf); dprintf(fd, "\n\n Access: %s", g_buf);
/* Show last modification time */ /* Show last modification time */
strftime(buf, 40, "%a %d-%b-%Y %T %z,%Z", localtime(&sb->st_mtime)); strftime(g_buf, 40, "%a %d-%b-%Y %T %z,%Z", localtime(&sb->st_mtime));
dprintf(fd, "\n Modify: %s", buf); dprintf(fd, "\n Modify: %s", g_buf);
/* Show last status change time */ /* Show last status change time */
strftime(buf, 40, "%a %d-%b-%Y %T %z,%Z", localtime(&sb->st_ctime)); strftime(g_buf, 40, "%a %d-%b-%Y %T %z,%Z", localtime(&sb->st_ctime));
dprintf(fd, "\n Change: %s", buf); dprintf(fd, "\n Change: %s", g_buf);
if (S_ISREG(sb->st_mode)) { if (S_ISREG(sb->st_mode)) {
/* Show file(1) output */ /* Show file(1) output */
sprintf(buf, "file -b \'%s\' 2>&1", fpath); sprintf(g_buf, "file -b \'%s\' 2>&1", fpath);
p = get_output(buf, sizeof(buf)); p = get_output(g_buf, sizeof(g_buf));
if (p) { if (p) {
dprintf(fd, "\n\n "); dprintf(fd, "\n\n ");
while (*p) { while (*p) {
@ -1134,8 +1133,8 @@ show_stats(char* fpath, char* fname, struct stat *sb)
dprintf(fd, "\n\n"); dprintf(fd, "\n\n");
close(fd); close(fd);
sprintf(buf, "cat %s | less", tmp); sprintf(g_buf, "cat %s | less", tmp);
fd = system(buf); fd = system(g_buf);
unlink(tmp); unlink(tmp);
return fd; return fd;
@ -1144,25 +1143,23 @@ show_stats(char* fpath, char* fname, struct stat *sb)
static int static int
show_mediainfo(const char* fpath, int full) show_mediainfo(const char* fpath, int full)
{ {
static char buf[MAX_CMD_LEN]; strcpy(g_buf, "which mediainfo");
if (get_output(g_buf, MAX_CMD_LEN) == NULL)
strcpy(buf, "which mediainfo");
if (get_output(buf, MAX_CMD_LEN) == NULL)
return -1; return -1;
sprintf(buf, "mediainfo \'%s\' ", fpath); sprintf(g_buf, "mediainfo \'%s\' ", fpath);
if (full) if (full)
strcat(buf, "-f 2>&1 | less"); strcat(g_buf, "-f 2>&1 | less");
else else
strcat(buf, "2>&1 | less"); strcat(g_buf, "2>&1 | less");
return system(buf); return system(g_buf);
} }
static int static int
show_help(void) show_help(void)
{ {
char helpstr[] = ("echo \"\ static char helpstr[] = ("echo \"\
Key | Function\n\ Key | Function\n\
-+-\n\ -+-\n\
Up, k, ^P | Previous entry\n\ Up, k, ^P | Previous entry\n\
@ -1574,8 +1571,6 @@ nochange:
goto begin; goto begin;
case S_IFREG: case S_IFREG:
{ {
static char cmd[MAX_CMD_LEN];
/* If NNN_OPENER is set, use it */ /* If NNN_OPENER is set, use it */
if (opener) { if (opener) {
spawn(opener, newpath, NULL, NULL, 4); spawn(opener, newpath, NULL, NULL, 4);
@ -1596,11 +1591,11 @@ nochange:
/* If nlay doesn't handle it, open plain text /* If nlay doesn't handle it, open plain text
files with vi, then try NNN_FALLBACK_OPENER */ files with vi, then try NNN_FALLBACK_OPENER */
sprintf(cmd, "file -bi \'%s\'", newpath); sprintf(g_buf, "file -bi \'%s\'", newpath);
if (get_output(cmd, MAX_CMD_LEN) == NULL) if (get_output(g_buf, MAX_CMD_LEN) == NULL)
continue; continue;
if (strstr(cmd, "text/") == cmd) { if (strstr(g_buf, "text/") == g_buf) {
exitcurses(); exitcurses();
run = xgetenv("EDITOR", "vi"); run = xgetenv("EDITOR", "vi");
spawn(run, newpath, NULL, NULL, 0); spawn(run, newpath, NULL, NULL, 0);