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Merge pull request #1981 from N-R-K/misc-changes

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misc changes
This commit is contained in:
Arun Prakash Jana 2025-01-06 18:51:16 +05:30 committed by GitHub
parent 1cc021e99c 6a9bf206cf
commit 1d41fe34f3
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GPG key ID: B5690EEEBB952194
2 changed files with 35 additions and 29 deletions
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4
src/icons-hash.c
View file

@ -10,7 +10,7 @@
#define GOLDEN_RATIO_32 UINT32_C(2654442313) /* golden ratio for 32bits: (2^32) / 1.61803 */
#define GOLDEN_RATIO_64 UINT64_C(0x9E3793492EEDC3F7)
#define ICONS_TABLE_SIZE 8 /* size in bits. 8 = 256 */
#define ICONS_TABLE_SIZE 8 /* size in bits. 8 = 2^8 = 256 */
#ifndef TOUPPER
#define TOUPPER(ch) (((ch) >= 'a' && (ch) <= 'z') ? ((ch) - 'a' + 'A') : (ch))
@ -118,7 +118,7 @@ pcg(uint64_t *state)
int
main(void)
{
ENSURE(ARRLEN(icons_ext) <= ARRLEN(table));
ENSURE(ARRLEN(icons_ext) < ARRLEN(table));
ENSURE(ICONS_TABLE_SIZE < 16);
ENSURE(1u << ICONS_TABLE_SIZE == ARRLEN(table));
ENSURE((GOLDEN_RATIO_32 & 1) == 1); /* must be odd */

60
src/nnn.c
View file

@ -438,6 +438,7 @@ static int nselected;
#ifndef NOFIFO
static int fifofd = -1;
#endif
static int devnullfd = -1;
static time_t gtimesecs;
static uint_t idletimeout, selbufpos, selbuflen;
static ushort_t xlines, xcols;
@ -988,7 +989,8 @@ static size_t xstrsncpy(char *restrict dst, const char *restrict src, size_t n)
char *end = memccpy(dst, src, '\0', n);
if (!end) {
dst[n - 1] = '\0'; // NOLINT
if (n)
dst[n - 1] = '\0';
end = dst + n; /* If we return n here, binary size increases due to auto-inlining */
}
@ -1334,21 +1336,23 @@ static char *bmtarget(const char *filepath, char *cwd, char *buf)
}
/* wraps the argument in single quotes so it can be safely fed to shell */
static bool shell_escape(char *output, size_t outlen, const char *s)
static ssize_t shell_escape(char *output, size_t outlen, const char *s)
{
size_t n = xstrlen(s), w = 0;
if (s == output) {
DPRINTF_S("s == output");
return FALSE;
if (s == output || outlen < 3) {
errno = EINVAL;
return -1;
}
output[w++] = '\''; /* begin single quote */
for (size_t r = 0; r < n; ++r) {
/* potentially too big: 4 for the single quote case, 2 from
* outside the loop */
if (w + 6 >= outlen)
return FALSE;
if (w + 6 >= outlen) {
errno = ENAMETOOLONG;
return -1;
}
switch (s[r]) {
/* the only thing that has special meaning inside single
@ -1365,8 +1369,8 @@ static bool shell_escape(char *output, size_t outlen, const char *s)
}
}
output[w++] = '\''; /* end single quote */
output[w++] = '\0'; /* nul terminator */
return TRUE;
output[w] = '\0'; /* nul terminator */
return w;
}
static bool set_tilde_in_path(char *path)
@ -2331,7 +2335,7 @@ static char *parseargs(char *cmd, char **argv, int *pindex)
{
int count = 0;
size_t len = xstrlen(cmd) + 1;
char *line = (char *)malloc(len);
char *line = malloc(len);
if (!line) {
DPRINTF_S("malloc()!");
@ -2484,13 +2488,10 @@ static int spawn(char *file, char *arg1, char *arg2, char *arg3, ushort_t flag)
if (pid == 0) {
/* Suppress stdout and stderr */
if (flag & F_NOTRACE) {
int fd = open("/dev/null", O_WRONLY, 0200);
if (flag & F_NOSTDIN)
dup2(fd, STDIN_FILENO);
dup2(fd, STDOUT_FILENO); // NOLINT
dup2(fd, STDERR_FILENO);
close(fd);
dup2(devnullfd, STDIN_FILENO);
dup2(devnullfd, STDOUT_FILENO);
dup2(devnullfd, STDERR_FILENO);
} else if (flag & F_TTY) {
/* If stdout has been redirected to a non-tty, force output to tty */
if (!isatty(STDOUT_FILENO)) {
@ -2840,7 +2841,7 @@ static void archive_selection(const char *cmd, const char *archive)
static void write_lastdir(const char *curpath, const char *outfile)
{
bool tilde = false;
bool tilde = false, ok = false;
if (!outfile)
xstrsncpy(cfgpath + xstrlen(cfgpath), "/.lastd", 8);
else
@ -2849,15 +2850,14 @@ static void write_lastdir(const char *curpath, const char *outfile)
int fd = open(outfile
? (tilde ? g_buf : outfile)
: cfgpath, O_CREAT | O_WRONLY | O_TRUNC, S_IWUSR | S_IRUSR);
if (fd != -1 && shell_escape(g_buf, sizeof(g_buf), curpath)) {
if (write(fd, "cd ", 3) == 3) {
if (write(fd, g_buf, strlen(g_buf)) != (ssize_t)strlen(g_buf)) {
DPRINTF_S("write failed!");
}
}
if (fd >= 0) {
memcpy(g_buf, "cd ", 3); // NOLINT
ssize_t l = shell_escape(g_buf + 3, sizeof(g_buf) - 3, curpath);
ok = l >= 0 && write(fd, g_buf, l + 3) == l + 3;
close(fd);
}
if (!ok)
errexit();
}
/*
@ -8564,8 +8564,8 @@ static bool setup_config(void)
if (!xdg)
len = xstrlen(home) + xstrlen("/.config/nnn/bookmarks") + 1;
cfgpath = (char *)malloc(len);
plgpath = (char *)malloc(len);
cfgpath = malloc(len);
plgpath = malloc(len);
if (!cfgpath || !plgpath) {
xerror();
return FALSE;
@ -8603,7 +8603,7 @@ static bool setup_config(void)
char *env_sel = xgetenv(env_cfg[NNN_SEL], NULL);
selpath = env_sel ? xstrdup(env_sel)
: (char *)malloc(len + 3); /* Length of "/.config/nnn/.selection" */
: malloc(len + 3); /* Length of "/.config/nnn/.selection" */
if (!selpath) {
xerror();
@ -8860,6 +8860,12 @@ int main(int argc, char *argv[])
DPRINTF_S(VERSION);
#endif
devnullfd = open("/dev/null", O_RDWR | O_CLOEXEC);
if (devnullfd < 0) {
xerror();
return EXIT_FAILURE;
}
/* Prefix for temporary files */
if (!set_tmp_path())
return EXIT_FAILURE;