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| author | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2019-01-10 09:53:34 +0100 |
|---|---|---|
| committer | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2019-01-15 14:24:10 +0100 |
| commit | 055c08ef67c4b2295a185f927dc8d76af3a8deef (patch) | |
| tree | ec4c3bb56aa77b2d5da68ee5bba1418c4dc87b9a /src/login/pam_systemd.c | |
| parent | a1b939dfc74f1f6ac8e8ad41912ac322b5e2438c (diff) | |
| download | systemd-055c08ef67c4b2295a185f927dc8d76af3a8deef.tar.gz | |
pam_systemd: do no allocate the path of fixed length
Diffstat (limited to 'src/login/pam_systemd.c')
| -rw-r--r-- | src/login/pam_systemd.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/src/login/pam_systemd.c b/src/login/pam_systemd.c index d466e50969..a33d8f05c5 100644 --- a/src/login/pam_systemd.c +++ b/src/login/pam_systemd.c @@ -28,6 +28,7 @@ #include "path-util.h" #include "process-util.h" #include "socket-util.h" +#include "stdio-util.h" #include "strv.h" #include "terminal-util.h" #include "util.h" @@ -414,11 +415,9 @@ _public_ PAM_EXTERN int pam_sm_open_session( pam_get_item(handle, PAM_SERVICE, (const void**) &service); if (streq_ptr(service, "systemd-user")) { - _cleanup_free_ char *rt = NULL; - - if (asprintf(&rt, "/run/user/"UID_FMT, pw->pw_uid) < 0) - return PAM_BUF_ERR; + char rt[STRLEN("/run/user/") + DECIMAL_STR_MAX(uid_t)]; + xsprintf(rt, "/run/user/"UID_FMT, pw->pw_uid); if (validate_runtime_directory(handle, rt, pw->pw_uid)) { r = pam_misc_setenv(handle, "XDG_RUNTIME_DIR", rt, 0); if (r != PAM_SUCCESS) { |