From 154c00e1a480d2bac7e8aba3b13888eb909f8e7f Mon Sep 17 00:00:00 2001 From: "Dmitry V. Levin" Date: Fri, 24 Jan 2014 23:53:09 +0000 Subject: Fix gratuitous use of strdup and x_strdup There is no need to copy strings passed as arguments to execve, the only potentially noticeable effect of using strdup/x_strdup would be a malformed argument list in case of memory allocation error. Also, x_strdup, being a thin wrapper around strdup, is of no benefit when its argument is known to be non-NULL, and should not be used in such cases. * modules/pam_cracklib/pam_cracklib.c (password_check): Use strdup instead of x_strdup, the latter is of no benefit in this case. * modules/pam_ftp/pam_ftp.c (lookup): Likewise. * modules/pam_userdb/pam_userdb.c (user_lookup): Likewise. * modules/pam_userdb/pam_userdb.h (x_strdup): Remove. * modules/pam_mkhomedir/pam_mkhomedir.c (create_homedir): Do not use x_strdup for strings passed as arguments to execve. * modules/pam_unix/pam_unix_acct.c (_unix_run_verify_binary): Likewise. * modules/pam_unix/pam_unix_passwd.c (_unix_run_update_binary): Likewise. * modules/pam_unix/support.c (_unix_run_helper_binary): Likewise. (_unix_verify_password): Use strdup instead of x_strdup, the latter is of no benefit in this case. * modules/pam_xauth/pam_xauth.c (run_coprocess): Do not use strdup for strings passed as arguments to execv. --- modules/pam_ftp/pam_ftp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'modules/pam_ftp') diff --git a/modules/pam_ftp/pam_ftp.c b/modules/pam_ftp/pam_ftp.c index 896a1dda..221d8f87 100644 --- a/modules/pam_ftp/pam_ftp.c +++ b/modules/pam_ftp/pam_ftp.c @@ -81,7 +81,7 @@ static int lookup(const char *name, const char *list, const char **_user) char *list_copy, *x; char *sptr = NULL; - list_copy = x_strdup(list); + list_copy = strdup(list); x = list_copy; while (list_copy && (l = strtok_r(x, ",", &sptr))) { x = NULL; -- cgit v1.2.3