hwclock: add taint flag for non-local hwclock

[elogind.git] / src / shared / util.c

diff --git a/src/shared/util.c b/src/shared/util.c
index 43948ccbd8970c5076d2f00659d26f2d449fa4ce..fd2c5b075f77649f943ccf4cb59d02a3fc673e9d 100644 (file)
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -4287,6 +4287,15 @@ bool tty_is_vc(const char *tty) {
         return vtnr_from_tty(tty) >= 0;
 }
 
+bool tty_is_console(const char *tty) {
+        assert(tty);
+
+        if (startswith(tty, "/dev/"))
+                tty += 5;
+
+        return streq(tty, "console");
+}
+
 int vtnr_from_tty(const char *tty) {
         int i, r;
 
@@ -4343,7 +4352,7 @@ bool tty_is_vc_resolve(const char *tty) {
 const char *default_term_for_tty(const char *tty) {
         assert(tty);
 
-        return tty_is_vc_resolve(tty) ? "TERM=linux" : "TERM=vt100";
+        return tty_is_vc_resolve(tty) ? "TERM=linux" : "TERM=vt102";
 }
 
 bool dirent_is_file(const struct dirent *de) {
@@ -4992,7 +5001,6 @@ int hwclock_is_localtime(void) {
                 if (!b)
                         return -EIO;
 
-
                 truncate_nl(line);
                 local = streq(line, "LOCAL");
 
@@ -5127,7 +5135,7 @@ int hwclock_get_time(struct tm *tm) {
         if (ioctl(fd, RTC_RD_TIME, tm) < 0)
                 err = -errno;
 
-        /* We don't now daylight saving, so we reset this in order not
+        /* We don't know daylight saving, so we reset this in order not
          * to confused mktime(). */
         tm->tm_isdst = -1;
 
@@ -6159,3 +6167,65 @@ int path_is_read_only_fs(const char *path) {
 
         return !!(st.f_flag & ST_RDONLY);
 }
+
+int getenv_for_pid(pid_t pid, const char *field, char **_value) {
+        char path[sizeof("/proc/")-1+10+sizeof("/environ")], *value = NULL;
+        int r;
+        FILE *f;
+        bool done = false;
+        size_t l;
+
+        assert(field);
+        assert(_value);
+
+        if (pid == 0)
+                pid = getpid();
+
+        snprintf(path, sizeof(path), "/proc/%lu/environ", (unsigned long) pid);
+        char_array_0(path);
+
+        f = fopen(path, "re");
+        if (!f)
+                return -errno;
+
+        l = strlen(field);
+        r = 0;
+
+        do {
+                char line[LINE_MAX];
+                unsigned i;
+
+                for (i = 0; i < sizeof(line)-1; i++) {
+                        int c;
+
+                        c = getc(f);
+                        if (_unlikely_(c == EOF)) {
+                                done = true;
+                                break;
+                        } else if (c == 0)
+                                break;
+
+                        line[i] = c;
+                }
+                line[i] = 0;
+
+                if (memcmp(line, field, l) == 0 && line[l] == '=') {
+                        value = strdup(line + l + 1);
+                        if (!value) {
+                                r = -ENOMEM;
+                                break;
+                        }
+
+                        r = 1;
+                        break;
+                }
+
+        } while (!done);
+
+        fclose(f);
+
+        if (r >= 0)
+                *_value = value;
+
+        return r;
+}