swap: handle "nofail" from fstab

[elogind.git] / src / util.c

diff --git a/src/util.c b/src/util.c
index e78063c5aadc42548c26baca9c26e2a34b81fea0..b0a01fde2f00e551b98cb5eaaff289b3cc955601 100644 (file)
--- a/src/util.c
+++ b/src/util.c
@@ -59,6 +59,7 @@
 #include "strv.h"
 #include "label.h"
 #include "exit-status.h"
+#include "hashmap.h"
 
 bool streq_ptr(const char *a, const char *b) {
 
@@ -3549,6 +3550,16 @@ void filter_environ(const char *prefix) {
         environ[j] = NULL;
 }
 
+bool tty_is_vc(const char *tty) {
+        assert(tty);
+
+        if (startswith(tty, "/dev/"))
+                tty += 5;
+
+        return startswith(tty, "tty") &&
+                tty[3] >= '0' && tty[3] <= '9';
+}
+
 const char *default_term_for_tty(const char *tty) {
         char *active = NULL;
         const char *term;
@@ -3563,12 +3574,16 @@ const char *default_term_for_tty(const char *tty) {
         if (streq(tty, "console"))
                 if (read_one_line_file("/sys/class/tty/console/active", &active) >= 0) {
                         truncate_nl(active);
-                        tty = active;
-                }
 
-        term = (startswith(tty, "tty") &&
-                tty[3] >= '0' && tty[3] <= '9') ? "TERM=linux" : "TERM=vt100";
+                        /* If multiple log outputs are configured the
+                         * last one is what /dev/console points to */
+                        if ((tty = strrchr(active, ' ')))
+                                tty++;
+                        else
+                                tty = active;
+                }
 
+        term = tty_is_vc(tty) ? "TERM=linux" : "TERM=vt100";
         free(active);
 
         return term;
@@ -3650,6 +3665,119 @@ bool running_in_vm(void) {
         return false;
 }
 
+void execute_directory(const char *directory, DIR *d, char *argv[]) {
+        DIR *_d = NULL;
+        struct dirent *de;
+        Hashmap *pids = NULL;
+
+        assert(directory);
+
+        /* Executes all binaries in a directory in parallel and waits
+         * until all they all finished. */
+
+        if (!d) {
+                if (!(_d = opendir(directory))) {
+
+                        if (errno == ENOENT)
+                                return;
+
+                        log_error("Failed to enumerate directory %s: %m", directory);
+                        return;
+                }
+
+                d = _d;
+        }
+
+        if (!(pids = hashmap_new(trivial_hash_func, trivial_compare_func))) {
+                log_error("Failed to allocate set.");
+                goto finish;
+        }
+
+        while ((de = readdir(d))) {
+                char *path;
+                pid_t pid;
+                int k;
+
+                if (ignore_file(de->d_name))
+                        continue;
+
+                if (de->d_type != DT_REG &&
+                    de->d_type != DT_LNK &&
+                    de->d_type != DT_UNKNOWN)
+                        continue;
+
+                if (asprintf(&path, "%s/%s", directory, de->d_name) < 0) {
+                        log_error("Out of memory");
+                        continue;
+                }
+
+                if ((pid = fork()) < 0) {
+                        log_error("Failed to fork: %m");
+                        free(path);
+                        continue;
+                }
+
+                if (pid == 0) {
+                        char *_argv[2];
+                        /* Child */
+
+                        if (!argv) {
+                                _argv[0] = path;
+                                _argv[1] = NULL;
+                                argv = _argv;
+                        } else
+                                if (!argv[0])
+                                        argv[0] = path;
+
+                        execv(path, argv);
+
+                        log_error("Failed to execute %s: %m", path);
+                        _exit(EXIT_FAILURE);
+                }
+
+                log_debug("Spawned %s as %lu", path, (unsigned long) pid);
+
+                if ((k = hashmap_put(pids, UINT_TO_PTR(pid), path)) < 0) {
+                        log_error("Failed to add PID to set: %s", strerror(-k));
+                        free(path);
+                }
+        }
+
+        while (!hashmap_isempty(pids)) {
+                siginfo_t si;
+                char *path;
+
+                zero(si);
+                if (waitid(P_ALL, 0, &si, WEXITED) < 0) {
+
+                        if (errno == EINTR)
+                                continue;
+
+                        log_error("waitid() failed: %m");
+                        goto finish;
+                }
+
+                if ((path = hashmap_remove(pids, UINT_TO_PTR(si.si_pid)))) {
+                        if (!is_clean_exit(si.si_code, si.si_status)) {
+                                if (si.si_code == CLD_EXITED)
+                                        log_error("%s exited with exit status %i.", path, si.si_status);
+                                else
+                                        log_error("%s terminated by signal %s.", path, signal_to_string(si.si_status));
+                        } else
+                                log_debug("%s exited successfully.", path);
+
+                        free(path);
+                }
+        }
+
+finish:
+        if (_d)
+                closedir(_d);
+
+        if (pids)
+                hashmap_free_free(pids);
+}
+
 static const char *const ioprio_class_table[] = {
         [IOPRIO_CLASS_NONE] = "none",
         [IOPRIO_CLASS_RT] = "realtime",