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Add is_prefix(), block empty files completely

This commit is contained in:
Arun Prakash Jana 2020-05-04 04:08:12 +05:30
parent 92f8fe14f2
commit ffc0790fba
No known key found for this signature in database
GPG Key ID: A75979F35C080412
1 changed files with 30 additions and 27 deletions
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57
src/nnn.c
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@ -948,7 +948,7 @@ static char *xstrdup(const char *restrict s)
return ptr;
}
static bool is_suffix(const char *str, const char *suffix)
static bool is_suffix(const char *restrict str, const char *restrict suffix)
{
if (!str || !suffix)
return FALSE;
@ -962,6 +962,11 @@ static bool is_suffix(const char *str, const char *suffix)
return (xstrcmp(str + (lenstr - lensuffix), suffix) == 0);
}
static bool is_prefix(const char *restrict str, const char *restrict prefix, size_t len)
{
return !strncmp(str, prefix, len);
}
/*
* The poor man's implementation of memrchr(3).
* We are only looking for '/' in this program.
@ -1177,7 +1182,7 @@ static size_t seltofile(int fd, uint *pcount)
DPRINTF_S(pbuf);
len = (ssize_t)xstrlen(pbuf);
if (!listpath || strncmp(listpath, pbuf, initlen) != 0) {
if (!listpath || !is_prefix(pbuf, listpath, initlen)) {
if (write(fd, pbuf, len) != len)
return pos;
} else {
@ -1996,11 +2001,12 @@ static void archive_selection(const char *cmd, const char *archive, const char *
snprintf(buf, CMD_LEN_MAX,
#ifdef __linux__
"sed -ze 's|^%s/||' '%s' | xargs -0 %s %s", curpath, selpath, cmd, archive);
"sed -ze 's|^%s/||' '%s' | xargs -0 %s %s", curpath, selpath, cmd, archive
#else
"tr '\\0' '\n' < '%s' | sed -e 's|^%s/||' | tr '\n' '\\0' | xargs -0 %s %s",
selpath, curpath, cmd, archive);
selpath, curpath, cmd, archive
#endif
);
spawn(utils[UTIL_SH_EXEC], buf, NULL, curpath, F_CLI);
free(buf);
}
@ -3872,10 +3878,7 @@ static bool remote_mount(char *newpath, char *currentpath)
uchar flag = F_CLI;
int opt;
char *tmp, *env;
bool r, s;
r = getutil(utils[UTIL_RCLONE]);
s = getutil(utils[UTIL_SSHFS]);
bool r = getutil(utils[UTIL_RCLONE]), s = getutil(utils[UTIL_SSHFS]);
if (!(r || s)) {
printmsg(messages[MSG_UTIL_MISSING]);
@ -4290,13 +4293,13 @@ static void readpipe(int fd, char **path, char **lastname, char **lastdir)
static bool run_selected_plugin(char **path, const char *file, char *runfile, char **lastname, char **lastdir)
{
int fd;
if (!(g_states & STATE_PLUGIN_INIT)) {
plctrl_init();
g_states |= STATE_PLUGIN_INIT;
}
fd = open(g_pipepath, O_RDONLY | O_NONBLOCK);
int fd = open(g_pipepath, O_RDONLY | O_NONBLOCK);
if (fd == -1)
return FALSE;
@ -5451,24 +5454,25 @@ nochange:
}
}
if (cfg.useeditor && (!sb.st_size ||
#ifdef FILE_MIME_OPTS
(get_output(g_buf, CMD_LEN_MAX, "file", FILE_MIME_OPTS, newpath, FALSE)
&& !strncmp(g_buf, "text/", 5)))) {
#else
/* no mime option; guess from description instead */
(get_output(g_buf, CMD_LEN_MAX, "file", "-b", newpath, FALSE)
&& strstr(g_buf, "text")))) {
#endif
spawn(editor, newpath, NULL, path, F_CLI);
continue;
}
if (!sb.st_size) {
printwait(messages[MSG_EMPTY_FILE], &presel);
goto nochange;
}
if (cfg.useeditor
#ifdef FILE_MIME_OPTS
&& get_output(g_buf, CMD_LEN_MAX, "file", FILE_MIME_OPTS, newpath, FALSE)
&& is_prefix(g_buf, "text/", 5)
#else
/* no mime option; guess from description instead */
&& get_output(g_buf, CMD_LEN_MAX, "file", "-b", newpath, FALSE)
&& strstr(g_buf, "text")
#endif
) {
spawn(editor, newpath, NULL, path, F_CLI);
continue;
}
#ifdef PCRE
if (!pcre_exec(archive_pcre, NULL, dents[cur].name,
xstrlen(dents[cur].name), 0, 0, NULL, 0)) {
@ -5730,10 +5734,9 @@ nochange:
if (!(getutil(utils[UTIL_BASH])
&& plugscript(utils[UTIL_NMV], path, F_CLI))
#ifndef NOBATCH
&& !batch_rename(path)) {
#else
) {
&& !batch_rename(path)
#endif
) {
printwait(messages[MSG_FAILED], &presel);
goto nochange;
}
@ -6957,7 +6960,7 @@ int main(int argc, char *argv[])
} else {
arg = argv[optind];
DPRINTF_S(arg);
if (xstrlen(arg) > 7 && !strncmp(arg, "file://", 7))
if (xstrlen(arg) > 7 && is_prefix(arg, "file://", 7))
arg = arg + 7;
initpath = realpath(arg, NULL);
DPRINTF_S(initpath);