X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=log.c;h=ffca41c2702e45c4e4fe6ddd0561011d8af48bed;hb=ee9b5e011857ff4a75ceaa9aaf3b2ed8ceacfadf;hp=879cb537336e8461fec1c02ea79bceb79b41eeab;hpb=2d368c149b90a7b284035f8883eb0c3e64a2caab;p=elogind.git

diff --git a/log.c b/log.c
index 879cb5373..ffca41c27 100644
--- a/log.c
+++ b/log.c
@@ -272,3 +272,43 @@ void log_meta(
 
         errno = saved_errno;
 }
+
+int log_set_target_from_string(const char *e) {
+        LogTarget t;
+
+        if ((t = log_target_from_string(e)) < 0)
+                return -EINVAL;
+
+        log_set_target(t);
+        return 0;
+}
+
+int log_set_max_level_from_string(const char *e) {
+        int t;
+
+        if ((t = log_level_from_string(e)) < 0)
+                return -EINVAL;
+
+        log_set_max_level(t);
+        return 0;
+}
+
+void log_parse_environment(void) {
+        const char *e;
+
+        if ((e = getenv("SYSTEMD_LOG_TARGET")))
+                if (log_set_target_from_string(e) < 0)
+                        log_warning("Failed to parse log target %s. Ignoring.", e);
+
+        if ((e = getenv("SYSTEMD_LOG_LEVEL")))
+                if (log_set_max_level_from_string(e) < 0)
+                        log_warning("Failed to parse log level %s. Ignoring.", e);
+}
+
+static const char *const log_target_table[] = {
+        [LOG_TARGET_CONSOLE] = "console",
+        [LOG_TARGET_SYSLOG] = "syslog",
+        [LOG_TARGET_KMSG] = "kmsg",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(log_target, LogTarget);