units: On Debian Runlevel 2, 3, 4 and 5 are multi-user

[elogind.git] / src / util.c

diff --git a/src/util.c b/src/util.c
index c2ef34dd4378af94500e6cfe3a830186a920c013..0cd1fd30df49f7f0117aad847f6b55cb6b2f4d57 100644 (file)
--- a/src/util.c
+++ b/src/util.c
@@ -1,4 +1,4 @@
-/*-*- Mode: C; c-basic-offset: 8 -*-*/
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
 
 /***
   This file is part of systemd.
@@ -57,6 +57,7 @@
 #include "log.h"
 #include "strv.h"
 #include "label.h"
+#include "exit-status.h"
 
 bool streq_ptr(const char *a, const char *b) {
 
@@ -1658,6 +1659,63 @@ char *format_timestamp(char *buf, size_t l, usec_t t) {
         return buf;
 }
 
+char *format_timestamp_pretty(char *buf, size_t l, usec_t t) {
+        usec_t n, d;
+
+        n = now(CLOCK_REALTIME);
+
+        if (t <= 0 || t > n || t + USEC_PER_DAY*7 <= t)
+                return NULL;
+
+        d = n - t;
+
+        if (d >= USEC_PER_YEAR)
+                snprintf(buf, l, "%llu years and %llu months ago",
+                         (unsigned long long) (d / USEC_PER_YEAR),
+                         (unsigned long long) ((d % USEC_PER_YEAR) / USEC_PER_MONTH));
+        else if (d >= USEC_PER_MONTH)
+                snprintf(buf, l, "%llu months and %llu days ago",
+                         (unsigned long long) (d / USEC_PER_MONTH),
+                         (unsigned long long) ((d % USEC_PER_MONTH) / USEC_PER_DAY));
+        else if (d >= USEC_PER_WEEK)
+                snprintf(buf, l, "%llu weeks and %llu days ago",
+                         (unsigned long long) (d / USEC_PER_WEEK),
+                         (unsigned long long) ((d % USEC_PER_WEEK) / USEC_PER_DAY));
+        else if (d >= 2*USEC_PER_DAY)
+                snprintf(buf, l, "%llu days ago", (unsigned long long) (d / USEC_PER_DAY));
+        else if (d >= 25*USEC_PER_HOUR)
+                snprintf(buf, l, "1 day and %lluh ago",
+                         (unsigned long long) ((d - USEC_PER_DAY) / USEC_PER_HOUR));
+        else if (d >= 6*USEC_PER_HOUR)
+                snprintf(buf, l, "%lluh ago",
+                         (unsigned long long) (d / USEC_PER_HOUR));
+        else if (d >= USEC_PER_HOUR)
+                snprintf(buf, l, "%lluh %llumin ago",
+                         (unsigned long long) (d / USEC_PER_HOUR),
+                         (unsigned long long) ((d % USEC_PER_HOUR) / USEC_PER_MINUTE));
+        else if (d >= 5*USEC_PER_MINUTE)
+                snprintf(buf, l, "%llumin ago",
+                         (unsigned long long) (d / USEC_PER_MINUTE));
+        else if (d >= USEC_PER_MINUTE)
+                snprintf(buf, l, "%llumin %llus ago",
+                         (unsigned long long) (d / USEC_PER_MINUTE),
+                         (unsigned long long) ((d % USEC_PER_MINUTE) / USEC_PER_SEC));
+        else if (d >= USEC_PER_SEC)
+                snprintf(buf, l, "%llus ago",
+                         (unsigned long long) (d / USEC_PER_SEC));
+        else if (d >= USEC_PER_MSEC)
+                snprintf(buf, l, "%llums ago",
+                         (unsigned long long) (d / USEC_PER_MSEC));
+        else if (d > 0)
+                snprintf(buf, l, "%lluus ago",
+                         (unsigned long long) d);
+        else
+                snprintf(buf, l, "now");
+
+        buf[l-1] = 0;
+        return buf;
+}
+
 char *format_timespan(char *buf, size_t l, usec_t t) {
         static const struct {
                 const char *suffix;
@@ -1859,9 +1917,9 @@ int reset_terminal(int fd) {
 
         assert(fd >= 0);
 
-        /* First, unlock termios */
-        zero(termios);
-        ioctl(fd, TIOCSLCKTRMIOS, &termios);
+        /* We leave locked terminal attributes untouched, so that
+         * Plymouth may set whatever it wants to set, and we don't
+         * interfere with that. */
 
         /* Disable exclusive mode, just in case */
         ioctl(fd, TIOCNXCL);
@@ -2398,6 +2456,16 @@ bool is_clean_exit(int code, int status) {
         return false;
 }
 
+bool is_clean_exit_lsb(int code, int status) {
+
+        if (is_clean_exit(code, status))
+                return true;
+
+        return
+                code == CLD_EXITED &&
+                (status == EXIT_NOTINSTALLED || status == EXIT_NOTCONFIGURED);
+}
+
 bool is_device_path(const char *path) {
 
         /* Returns true on paths that refer to a device, either in
@@ -2531,11 +2599,12 @@ char* getlogname_malloc(void) {
 
 int getttyname_malloc(char **r) {
         char path[PATH_MAX], *p, *c;
+        int k;
 
         assert(r);
 
-        if (ttyname_r(STDIN_FILENO, path, sizeof(path)) < 0)
-                return -errno;
+        if ((k = ttyname_r(STDIN_FILENO, path, sizeof(path))) != 0)
+                return -k;
 
         char_array_0(path);
 
@@ -2919,7 +2988,7 @@ int columns(void) {
                 struct winsize ws;
                 zero(ws);
 
-                if (ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) >= 0)
+                if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) >= 0)
                         parsed_columns = ws.ws_col;
         }
 
@@ -2980,23 +3049,30 @@ char *ellipsize(const char *s, unsigned length, unsigned percent) {
         return r;
 }
 
-void nss_disable_nscd(void) {
+int touch(const char *path) {
+        int fd;
 
-        void (*func)(void);
+        assert(path);
 
-        /* This is an internal glibc function call. We are not
-         * supposed to call this, because we are not nscd. However
-         * sometimes we feel really dangerous and do it
-         * nonetheless. Muahahah! But at least we protect this with a
-         * dlsym() just in case glibc takes this away from us. */
+        if ((fd = open(path, O_WRONLY|O_CREAT|O_CLOEXEC|O_NOCTTY, 0666)) < 0)
+                return -errno;
 
-        if ((func = dlsym(RTLD_DEFAULT, "__nss_disable_nscd"))) {
-                log_debug("Disabling nscd.");
-                func();
-        } else
-                log_debug("Cannot disable nscd.");
+        close_nointr_nofail(fd);
+        return 0;
 }
 
+char *unquote(const char *s, const char quote) {
+        size_t l;
+        assert(s);
+
+        if ((l = strlen(s)) < 2)
+                return strdup(s);
+
+        if (s[0] == quote && s[l-1] == quote)
+                return strndup(s+1, l-2);
+
+        return strdup(s);
+}
 
 static const char *const ioprio_class_table[] = {
         [IOPRIO_CLASS_NONE] = "none",