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<title>[23015] trunk/launchd/src/launchd_core_logic.c</title>
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<dt>Revision</dt> <dd><a href="http://trac.macosforge.org/projects/launchd/changeset/23015">23015</a></dd>
<dt>Author</dt> <dd>zarzycki@apple.com</dd>
<dt>Date</dt> <dd>2007-01-22 12:55:07 -0800 (Mon, 22 Jan 2007)</dd>
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<h3>Log Message</h3>
<pre>Nothing like writing code to track down bugs in other software.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunklaunchdsrclaunchd_core_logicc">trunk/launchd/src/launchd_core_logic.c</a></li>
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<h3>Diff</h3>
<a id="trunklaunchdsrclaunchd_core_logicc"></a>
<div class="modfile"><h4>Modified: trunk/launchd/src/launchd_core_logic.c (23014 => 23015)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/launchd/src/launchd_core_logic.c 2007-01-22 19:43:32 UTC (rev 23014)
+++ trunk/launchd/src/launchd_core_logic.c 2007-01-22 20:55:07 UTC (rev 23015)
</span><span class="lines">@@ -291,6 +291,7 @@
</span><span class="cx"> static bool job_setup_machport(job_t j);
</span><span class="cx"> static void job_setup_fd(job_t j, int target_fd, const char *path, int flags);
</span><span class="cx"> static void job_postfork_become_user(job_t j);
</span><ins>+static void job_find_and_blame_pids_with_weird_uids(job_t j);
</ins><span class="cx"> static void job_force_sampletool(job_t j);
</span><span class="cx"> static void job_reparent_hack(job_t j, const char *where);
</span><span class="cx"> static void job_callback(void *obj, struct kevent *kev);
</span><span class="lines">@@ -1953,6 +1954,36 @@
</span><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> void
</span><ins>+job_find_and_blame_pids_with_weird_uids(job_t j)
+{
+ int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_ALL };
+ size_t i, kp_cnt, len = 10*1024*1024;
+ struct kinfo_proc *kp = malloc(len);
+ uid_t u = j->mach_uid;
+
+ if (!job_assumes(j, sysctl(mib, 3, kp, &len, NULL, 0) != -1)) {
+ return;
+ }
+
+ kp_cnt = len / sizeof(struct kinfo_proc);
+
+ for (i = 0; i <= kp_cnt; i++) {
+ uid_t i_euid = kp[i].kp_eproc.e_ucred.cr_uid;
+ uid_t i_uid = kp[i].kp_eproc.e_pcred.p_ruid;
+ uid_t i_svuid = kp[i].kp_eproc.e_pcred.p_svuid;
+
+ if (i_euid != u && i_uid != u && i_svuid != u) {
+ continue;
+ }
+
+ job_log(j, LOG_ERR, "PID %u (\"%s\") has no account to back it! (real/effective/saved UIDs: %u/%u/%u)",
+ kp[i].kp_proc.p_pid, kp[i].kp_proc.p_comm, i_uid, i_euid, i_svuid);
+ }
+
+ free(kp);
+}
+
+void
</ins><span class="cx"> job_postfork_become_user(job_t j)
</span><span class="cx"> {
</span><span class="cx"> char loginname[2000];
</span><span class="lines">@@ -1974,6 +2005,7 @@
</span><span class="cx"> } else if (j->mach_uid) {
</span><span class="cx"> if ((pwe = getpwuid(j->mach_uid)) == NULL) {
</span><span class="cx"> job_log(j, LOG_ERR, "getpwuid(\"%u\") failed", j->mach_uid);
</span><ins>+ job_find_and_blame_pids_with_weird_uids(j);
</ins><span class="cx"> _exit(EXIT_FAILURE);
</span><span class="cx"> }
</span><span class="cx"> } else {
</span></span></pre>
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