From: Frederic Crozat <fcrozat@suse.com>
Date: Fri, 30 Sep 2011 13:55:31 +0000
Subject: parse /etc/insserv.conf and adds dependencies accordingly

(bnc#721428)
---
 src/core/service.c | 101 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)

diff --git a/src/core/service.c b/src/core/service.c
index 98266a5..8707cb5 100644
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -3440,6 +3440,105 @@ static void service_notify_message(Unit *u, pid_t pid, char **tags) {
 }
 
 #ifdef HAVE_SYSV_COMPAT
+static void sysv_parse_insserv_conf(Manager *mgr, const char* filename) {
+        FILE *f = NULL;
+        int r;
+
+        if (!(f = fopen(filename, "re"))) {
+                log_debug("Failed to open file %s", filename);
+                r = errno == ENOENT ? 0 : -errno;
+                goto finish;
+        }
+
+        while (!feof(f)) {
+                char l[LINE_MAX], *t;
+                char **parsed = NULL;
+
+                if (!fgets(l, sizeof(l), f)) {
+                        if (feof(f))
+                                break;
+
+                        r = -errno;
+                        log_error("Failed to read configuration file '%s': %s", filename, strerror(-r));
+                        goto finish;
+                }
+
+                t = strstrip(l);
+                if (*t != '$' && *t != '<')
+                        continue;
+
+                parsed = strv_split(t,WHITESPACE);
+                /* we ignore <interactive>, not used, equivalent to X-Interactive */
+                if (parsed && !startswith_no_case (parsed[0], "<interactive>")) {
+                        char *facility;
+                        Unit *u;
+                        if (sysv_translate_facility(parsed[0], NULL, &facility) < 0)
+                                continue;
+                        if (streq(facility, SPECIAL_REMOTE_FS_TARGET)) {
+                                /* insert also a Wants dependency from remote-fs-pre on remote-fs */
+                                u = manager_get_unit(mgr, SPECIAL_REMOTE_FS_TARGET);
+                                unit_add_dependency_by_name(u, UNIT_WANTS, SPECIAL_REMOTE_FS_PRE_TARGET, NULL, true);
+                                free (facility);
+                                facility=strdup(SPECIAL_REMOTE_FS_PRE_TARGET);
+                        }
+                        if ((u = manager_get_unit(mgr, facility)) && (u->type == UNIT_TARGET)) {
+                                char *dep = NULL, *name, **j;
+
+                                STRV_FOREACH (j, parsed+1) {
+                                        if (*j[0] == '+')
+                                                name = *j+1;
+                                        else
+                                                name = *j;
+                                        if (streq(name, "boot.localfs") ||
+                                            streq(name, "boot.crypto"))
+                                                continue;
+                                        if ((sysv_translate_facility(name, NULL, &dep) < 0) || !dep)
+                                                continue;
+
+                                        r = unit_add_two_dependencies_by_name_inverse(u, UNIT_WANTS, UNIT_BEFORE, dep, NULL, true);
+                                        if (*j[0] != '+')
+                                                r = unit_add_dependency_by_name(u, UNIT_REQUIRES, dep, NULL, true);
+                                        free(dep);
+                                }
+                        }
+                        free(facility);
+                }
+                strv_free(parsed);
+        }
+finish:
+        if (f)
+                fclose(f);
+
+}
+
+static void sysv_facility_in_insserv_conf(Manager *mgr) {
+        DIR *d =NULL;
+        struct dirent *de;
+
+#ifdef TARGET_DEBIAN
+        if (!(d = opendir("/etc/insserv.conf.d/")))
+                if (errno != ENOENT) {
+                       log_warning("opendir() failed on /etc/insserv.conf.d/ %s", strerror(errno));
+                       goto finish;
+                }
+
+        while ((de = readdir(d))) {
+                char *path = NULL;
+                if (ignore_file(de->d_name))
+                        continue;
+
+                path = join("/etc/insserv.conf.d/", de->d_name, NULL);
+                sysv_parse_insserv_conf(mgr, path);
+                free(path);
+        }
+finish:
+        if (d)
+                closedir(d);
+#endif
+
+        sysv_parse_insserv_conf(mgr, "/etc/insserv.conf");
+}
+
 
 static int service_enumerate(Manager *m) {
         char **p;
@@ -3602,6 +3701,8 @@ static int service_enumerate(Manager *m) {
 
         r = 0;
 
+        sysv_facility_in_insserv_conf (m);
+
 finish:
 
         for (i = 0; i < ELEMENTSOF(rcnd_table); i++)