diff options
Diffstat (limited to 'modules/pam_xauth/pam_xauth.c')
| -rw-r--r-- | modules/pam_xauth/pam_xauth.c | 26 |
1 files changed, 8 insertions, 18 deletions
diff --git a/modules/pam_xauth/pam_xauth.c b/modules/pam_xauth/pam_xauth.c index 9d7369c0..35bc5aeb 100644 --- a/modules/pam_xauth/pam_xauth.c +++ b/modules/pam_xauth/pam_xauth.c @@ -87,14 +87,13 @@ static const char * const xauthpaths[] = { * given input on stdin, and storing any output it generates. */ static int run_coprocess(pam_handle_t *pamh, const char *input, char **output, - uid_t uid, gid_t gid, const char *command, ...) + uid_t uid, gid_t gid, const char *command, const char *argv[]) { int ipipe[2], opipe[2], i; char buf[LINE_MAX]; pid_t child; char *buffer = NULL; size_t buffer_size = 0; - va_list ap; struct sigaction newsa, oldsa; *output = NULL; @@ -134,9 +133,6 @@ run_coprocess(pam_handle_t *pamh, const char *input, char **output, } if (child == 0) { - /* We're the child. */ - size_t j; - const char *args[10] = {}; /* Drop privileges. */ if (setgid(gid) == -1) { @@ -176,18 +172,9 @@ run_coprocess(pam_handle_t *pamh, const char *input, char **output, PAM_MODUTIL_NULL_FD) < 0) { _exit(1); } - /* Convert the varargs list into a regular array of strings. */ - va_start(ap, command); - args[0] = command; - for (j = 1; j < PAM_ARRAY_SIZE(args) - 1; j++) { - args[j] = va_arg(ap, const char*); - if (args[j] == NULL) { - break; - } - } /* Run the command. */ DIAG_PUSH_IGNORE_CAST_QUAL; - execv(command, (char *const *) args); + execv(command, (char *const *) argv); DIAG_POP_IGNORE_CAST_QUAL; /* Never reached. */ _exit(1); @@ -550,8 +537,9 @@ pam_sm_open_session (pam_handle_t *pamh, int flags UNUSED, } if (run_coprocess(pamh, NULL, &cookie, getuid(), getgid(), + xauth, (const char *[]) { xauth, "-f", cookiefile, "nlist", display, - NULL) == 0) { + NULL}) == 0) { #ifdef WITH_SELINUX char *context_raw = NULL; #endif @@ -608,8 +596,9 @@ pam_sm_open_session (pam_handle_t *pamh, int flags UNUSED, } run_coprocess(pamh, NULL, &cookie, getuid(), getgid(), + xauth, (const char *[]) { xauth, "-f", cookiefile, - "nlist", t, NULL); + "nlist", t, NULL}); } free(t); t = NULL; @@ -750,7 +739,8 @@ pam_sm_open_session (pam_handle_t *pamh, int flags UNUSED, } run_coprocess(pamh, cookie, &tmp, tpwd->pw_uid, tpwd->pw_gid, - xauth, "-f", cookiefile, "nmerge", "-", NULL); + xauth, (const char *[]) { + xauth, "-f", cookiefile, "nmerge", "-", NULL}); /* We don't need to keep a copy of these around any more. */ cookiefile = NULL; |