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Fix #108: wrap user and group strings for NULL

This commit is contained in:
Arun Prakash Jana 2018-05-19 00:46:56 +05:30
parent 5bff663180
commit 8a1786c49f
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GPG Key ID: A75979F35C080412
1 changed files with 24 additions and 2 deletions
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26
nnn.c
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@ -279,6 +279,7 @@ static struct timespec gtimeout;
#define ATOOL 4
#define APACK 5
#define VIDIR 6
#define UNKNOWN 7
/* Utilities to open files, run actions */
static char * const utils[] = {
@ -294,7 +295,8 @@ static char * const utils[] = {
"nlay",
"atool",
"apack",
"vidir"
"vidir",
"UNKNOWN"
};
/* Common strings */
@ -1729,6 +1731,26 @@ get_output(char *buf, size_t bytes, char *file, char *arg1, char *arg2, int page
return NULL;
}
static char *
xgetpwuid(uid_t uid)
{
struct passwd *pwd = getpwuid(uid);
if (!pwd)
return utils[7];
return pwd->pw_name;
}
static char *
xgetgrgid(gid_t gid)
{
struct group *grp = getgrgid(gid);
if (!grp)
return utils[7];
return grp->gr_name;
}
/*
* Follows the stat(1) output closely
*/
@ -1788,7 +1810,7 @@ show_stats(char *fpath, char *fname, struct stat *sb)
/* Show permissions, owner, group */
dprintf(fd, "\n Access: 0%d%d%d/%s Uid: (%u/%s) Gid: (%u/%s)", (sb->st_mode >> 6) & 7, (sb->st_mode >> 3) & 7,
sb->st_mode & 7, perms, sb->st_uid, (getpwuid(sb->st_uid))->pw_name, sb->st_gid, (getgrgid(sb->st_gid))->gr_name);
sb->st_mode & 7, perms, sb->st_uid, xgetpwuid(sb->st_uid), sb->st_gid, xgetgrgid(sb->st_gid));
/* Show last access time */
strftime(g_buf, 40, messages[STR_DATE_ID], localtime(&sb->st_atime));