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librc: do not allow "." and ".." as runlevel names

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The rc_runlevel_exists function was attempting to treat "." and ".." as
valid runlevels; however, this should not be allowed.

X-Gentoo-Bug: 488710
X-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=488710
This commit is contained in:
William Hubbs
2013-10-21 14:21:22 -05:00
parent 48981be8a8
commit aeb670f4e8
1 changed files with 1 additions and 1 deletions
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2
src/librc/librc.c
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@@ -425,7 +425,7 @@ rc_runlevel_exists(const char *runlevel)
char path[PATH_MAX]; char path[PATH_MAX];
struct stat buf; struct stat buf;
if (!runlevel) if (!runlevel || strcmp(runlevel, ".") == 0 || strcmp(runlevel, "..") == 0)
return false; return false;
snprintf(path, sizeof(path), "%s/%s", RC_RUNLEVELDIR, runlevel); snprintf(path, sizeof(path), "%s/%s", RC_RUNLEVELDIR, runlevel);
if (stat(path, &buf) == 0 && S_ISDIR(buf.st_mode)) if (stat(path, &buf) == 0 && S_ISDIR(buf.st_mode))