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| author | Tobias Stoeckmann <tobias@stoeckmann.org> | 2023-12-15 10:14:11 +0100 |
|---|---|---|
| committer | Dmitry V. Levin <ldv@strace.io> | 2023-12-19 12:22:59 +0000 |
| commit | 2e375aad04d047e12468f93300ad7e42a8a03ff3 (patch) | |
| tree | 29f31fa0bf4700476eccd4a307ef6638d9707851 /modules/pam_faillock/faillock.c | |
| parent | c2fafe1be0fb72aa1bd521efe2f524074bf143c7 (diff) | |
| download | pam-2e375aad04d047e12468f93300ad7e42a8a03ff3.tar.gz pam-2e375aad04d047e12468f93300ad7e42a8a03ff3.tar.bz2 pam-2e375aad04d047e12468f93300ad7e42a8a03ff3.zip | |
treewide: use asprintf to construct strings
The asprintf function is considered as given for current code already.
Use it instead of calling malloc + strcpy + strcat manually.
Reported-by: Benny Baumann <BenBE@geshi.org>
Signed-off-by: Tobias Stoeckmann <tobias@stoeckmann.org>
Diffstat (limited to 'modules/pam_faillock/faillock.c')
| -rw-r--r-- | modules/pam_faillock/faillock.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/modules/pam_faillock/faillock.c b/modules/pam_faillock/faillock.c index 091f253a..1d2057e7 100644 --- a/modules/pam_faillock/faillock.c +++ b/modules/pam_faillock/faillock.c @@ -36,6 +36,7 @@ #include "config.h" #include <string.h> +#include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <errno.h> @@ -55,23 +56,20 @@ open_tally (const char *dir, const char *user, uid_t uid, int create) { char *path; int flags = O_RDWR; - int fd; + int fd, r; if (dir == NULL || strstr(user, "../") != NULL) /* just a defensive programming as the user must be a * valid user on the system anyway */ return -1; - path = malloc(strlen(dir) + strlen(user) + 2); - if (path == NULL) + if (*dir && dir[strlen(dir) - 1] != '/') + r = asprintf(&path, "%s/%s", dir, user); + else + r = asprintf(&path, "%s%s", dir, user); + if (r < 0) return -1; - strcpy(path, dir); - if (*dir && dir[strlen(dir) - 1] != '/') { - strcat(path, "/"); - } - strcat(path, user); - if (create) { flags |= O_CREAT; if (access(dir, F_OK) != 0) { |