From cf9aa106c615211abc642fc596c98a39d072dd5b Mon Sep 17 00:00:00 2001
From: Roy Marples <roy@marples.name>
Date: Thu, 26 Apr 2007 11:24:07 +0000
Subject: Set fonts in init-early.sh, don't stop services twice when shutting
 down and lock prefixed output.

---
 src/rc.c        | 37 ++++++++++++++++++++++++++++++-------
 src/runscript.c | 28 ++++++++++++++++++++++++++--
 2 files changed, 56 insertions(+), 9 deletions(-)

(limited to 'src')

diff --git a/src/rc.c b/src/rc.c
index d20616fb..6b864ce0 100644
--- a/src/rc.c
+++ b/src/rc.c
@@ -33,15 +33,16 @@
 #include "rc-plugin.h"
 #include "strlist.h"
 
-#define INITSH 					RC_LIBDIR "sh/init.sh"
-#define HALTSH					RC_INITDIR "halt.sh"
+#define INITSH                  RC_LIBDIR "sh/init.sh"
+#define INITEARLYSH             RC_LIBDIR "sh/init-early.sh"
+#define HALTSH                  RC_INITDIR "halt.sh"
 
-#define RC_SVCDIR_STARTING		RC_SVCDIR "starting/"
-#define RC_SVCDIR_INACTIVE		RC_SVCDIR "inactive/"
-#define RC_SVCDIR_STARTED		RC_SVCDIR "started/"
-#define RC_SVCDIR_COLDPLUGGED	RC_SVCDIR "coldplugged/"
+#define RC_SVCDIR_STARTING      RC_SVCDIR "starting/"
+#define RC_SVCDIR_INACTIVE      RC_SVCDIR "inactive/"
+#define RC_SVCDIR_STARTED       RC_SVCDIR "started/"
+#define RC_SVCDIR_COLDPLUGGED   RC_SVCDIR "coldplugged/"
 
-#define INTERACTIVE				RC_SVCDIR "interactive"
+#define INTERACTIVE             RC_SVCDIR "interactive"
 
 #define DEVBOOT					"/dev/.rcboot"
 
@@ -699,6 +700,27 @@ int main (int argc, char **argv)
 				FILE *fp;
 #endif
 
+                /* exec init-early.sh if it exists
+                 * This should just setup the console to use the correct
+                 * font. Maybe it should setup the keyboard too? */
+                if (rc_exists (INITEARLYSH)) {
+                    if ((pid = vfork ()) == -1)
+                        eerrorx ("%s: vfork: %s", applet, strerror (errno));
+
+                    if (pid == 0) {
+                        execl (INITEARLYSH, INITEARLYSH, (char *) NULL);
+                        eerror ("%s: unable to exec `" INITEARLYSH "': %s",
+                                applet, strerror (errno));
+                        _exit (EXIT_FAILURE);
+                    }
+
+                    do {
+                        wpid = waitpid (pid, &status, 0);
+                        if (wpid < 1)
+                            eerror ("waitpid: %s", strerror (errno));
+                    } while (! WIFEXITED (status) && ! WIFSIGNALED (status));
+                }
+
 				uname (&uts);
 
 				printf ("\n");
@@ -1071,6 +1093,7 @@ int main (int argc, char **argv)
 			pid_t pid = rc_stop_service (service);
 			if (pid > 0 && ! rc_is_env ("RC_PARALLEL", "yes"))
 				rc_waitpid (pid);
+			continue;
 		}
 
 		/* If we're in the start list then don't bother stopping us */
diff --git a/src/runscript.c b/src/runscript.c
index 2a41c9ba..c6f61181 100644
--- a/src/runscript.c
+++ b/src/runscript.c
@@ -33,6 +33,8 @@
 #define RCSCRIPT_HELP   RC_LIBDIR "/sh/rc-help.sh"
 #define SELINUX_LIB     RC_LIBDIR "/runscript_selinux.so"
 
+#define PREFIX_LOCK		RC_SVCDIR "/prefix.lock"
+
 static char *applet = NULL;
 static char *exclusive = NULL;
 static char *mtime_test = NULL;
@@ -53,8 +55,7 @@ static bool in_background = false;
 static rc_hook_t hook_out = 0;
 static pid_t service_pid = 0;
 static char *prefix = NULL;
-
-/* Pipes for prefixed output */
+static bool prefix_locked = false;
 
 extern char **environ;
 
@@ -203,6 +204,9 @@ static void uncoldplug (char *service)
 
 static void cleanup (void)
 {
+	if (prefix_locked)
+		unlink (PREFIX_LOCK);
+
 	/* Flush our buffered output if any */
 	eclose ();
 
@@ -381,6 +385,22 @@ static bool svc_exec (const char *service, const char *arg1, const char *arg2)
 			} else if (retval) {
 				ssize_t nr;
 
+				/* Wait until we get a lock */
+				while (true) {
+					struct timeval tv;
+
+					if (mkfifo (PREFIX_LOCK, 0700) == 0) {
+						prefix_locked = true;
+						break;
+					}
+
+					if (errno != EEXIST)
+						eerror ("mkfifo `%s': %s\n", PREFIX_LOCK, strerror (errno));
+					tv.tv_sec = 0;
+					tv.tv_usec = 20000;
+					select (0, NULL, NULL, NULL, &tv);
+				}
+
 				if (FD_ISSET (stdout_pipes[0], &fds)) {
 					if ((nr = read (stdout_pipes[0], buffer,
 									sizeof (buffer))) <= 0)
@@ -398,6 +418,10 @@ static bool svc_exec (const char *service, const char *arg1, const char *arg2)
 						write_prefix (fileno (stderr), buffer, nr,
 									  &stderr_prefix_shown);
 				}
+
+				/* Clear the lock */
+				unlink (PREFIX_LOCK);
+				prefix_locked = false;
 			}
 		}
 
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