[Mono-dev] Implement stuff to make process name lookup work

[Robert Nagy]

Implement get_processname_from_proc() for OpenBSD

Index: io-layer/processes.c
===================================================================
--- io-layer/processes.c	(revision 154749)
+++ io-layer/processes.c	(working copy)
@@ -2153,10 +2153,12 @@
 
 static gchar *get_process_name_from_proc (pid_t pid)
 {
-	gchar *filename = NULL;
 	gchar *ret = NULL;
+#if !defined(__OpenBSD__)
 	gchar buf[256];
+	gchar *filename = NULL;
 	FILE *fp;
+#endif
 
 #if defined(PLATFORM_SOLARIS)
 	filename = g_strdup_printf ("/proc/%d/psinfo", pid);
@@ -2172,6 +2174,22 @@
 		fclose (fp);
 	}
 	g_free (filename);
+#elif defined(__OpenBSD__)
+	int res;
+	int mib [6];
+	struct kinfo_proc2 result;
+	size_t data_len = sizeof (struct kinfo_proc2);
+
+	mib [0] = CTL_KERN;
+	mib [1] = KERN_PROC2;
+	mib [2] = KERN_PROC_PID;
+	mib [3] = pid;
+	mib [4] = sizeof(struct kinfo_proc2);
+	mib [5] = 400; /* XXX */
+
+	res = sysctl (mib, 6, &result, &data_len, NULL, 0);
+	if (res == 0)
+		ret = g_strdup (result.p_comm);
 #elif defined(PLATFORM_MACOSX)
 	memset (buf, '\0', sizeof(buf));
 	proc_name (pid, buf, sizeof(buf));
@@ -2242,7 +2260,9 @@
 	gchar *procname_ext = NULL;
 	glong len;
 	gsize bytes;
+#if !defined(__OpenBSD__)
 	FILE *fp;
+#endif
 	GSList *mods = NULL;
 	WapiProcModule *found_module;
 	guint32 count;
@@ -2285,6 +2305,14 @@
 #ifdef PLATFORM_MACOSX
 	{
 		mods = load_modules ();
+#elif defined(__OpenBSD__)
+	{
+		if (module == NULL && base == TRUE) {
+			procname_ext = get_process_name_from_proc (pid);
+		} else {
+			g_free (proc_name);
+			return(0);
+		}
 #else
 	if ((fp = open_process_map (pid, "r")) == NULL) {
 		if (errno == EACCES && module == NULL && base == TRUE) {