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| author | Paul Fox | 2007-11-08 01:12:38 +0000 |
|---|---|---|
| committer | Paul Fox | 2007-11-08 01:12:38 +0000 |
| commit | 53bd4015aa7ec79b8f45edd30555ea7b7235d7ca (patch) | |
| tree | c06946882377fd05d698e2abbeaf84fd4a5c9906 /libbb/update_passwd.c | |
| parent | 459a2ba1efa9b84bf12c2f5b8a23fd89912b47ea (diff) | |
| download | busybox-53bd4015aa7ec79b8f45edd30555ea7b7235d7ca.zip busybox-53bd4015aa7ec79b8f45edd30555ea7b7235d7ca.tar.gz | |
follow symlinks to find the true passwd file before updating.
Diffstat (limited to 'libbb/update_passwd.c')
| -rw-r--r-- | libbb/update_passwd.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/libbb/update_passwd.c b/libbb/update_passwd.c index 388adf8..e99db40 100644 --- a/libbb/update_passwd.c +++ b/libbb/update_passwd.c @@ -52,6 +52,10 @@ int update_passwd(const char *filename, const char *username, int cnt = 0; int ret = -1; /* failure */ + filename = xmalloc_readlink_follow(filename); + if (filename == NULL) + return -1; + check_selinux_update_passwd(username); /* New passwd file, "/etc/passwd+" for now */ @@ -143,6 +147,7 @@ int update_passwd(const char *filename, const char *username, free_mem: free(fnamesfx); - free((char*)username); + free((char *)filename); + free((char *)username); return ret; } |