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lsx: detect read errors

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This commit is contained in:
Connor Lane Smith 2011-10-17 01:44:07 +01:00
parent 1b6f9f9451
commit 19a37c60e3
1 changed files with 9 additions and 7 deletions
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16
dmenubar/lsx.c
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@ -1,5 +1,6 @@
/* See LICENSE file for copyright and license details. */ /* See LICENSE file for copyright and license details. */
#include <dirent.h> #include <dirent.h>
#include <errno.h>
#include <limits.h> #include <limits.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
@ -28,14 +29,15 @@ lsx(const char *dir) {
struct stat st; struct stat st;
DIR *dp; DIR *dp;
if(!(dp = opendir(dir))) { for(dp = opendir(dir); dp && (d = readdir(dp)); errno = 0)
if(snprintf(buf, sizeof buf, "%s/%s", dir, d->d_name) < (int)sizeof buf
&& access(buf, X_OK) == 0 && stat(buf, &st) == 0 && S_ISREG(st.st_mode))
puts(d->d_name);
if(errno != 0) {
status = EXIT_FAILURE; status = EXIT_FAILURE;
perror(dir); perror(dir);
return;
} }
while((d = readdir(dp))) if(dp)
if(snprintf(buf, sizeof buf, "%s/%s", dir, d->d_name) < (int)sizeof buf closedir(dp);
&& stat(buf, &st) == 0 && S_ISREG(st.st_mode) && access(buf, X_OK) == 0)
puts(d->d_name);
closedir(dp);
} }