X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;ds=sidebyside;f=log.c;h=ffca41c2702e45c4e4fe6ddd0561011d8af48bed;hb=004e33b632f34c9cd802347003563d566392678f;hp=da1c4f61e3575505d4e0b2e6de7582239d7e8312;hpb=16801e901e87f4ca0c83ea8c09df1ab3d344129e;p=elogind.git

diff --git a/log.c b/log.c
index da1c4f61e..ffca41c27 100644
--- a/log.c
+++ b/log.c
@@ -31,8 +31,6 @@
 #include "util.h"
 #include "macro.h"
 
-extern char * __progname;
-
 #define SYSLOG_TIMEOUT_USEC (5*USEC_PER_SEC)
 #define LOG_BUFFER_MAX 1024
 
@@ -188,7 +186,7 @@ static int write_to_syslog(
         zero(iovec);
         IOVEC_SET_STRING(iovec[0], header_priority);
         IOVEC_SET_STRING(iovec[1], header_time);
-        IOVEC_SET_STRING(iovec[2], file_name_from_path(__progname));
+        IOVEC_SET_STRING(iovec[2], __progname);
         IOVEC_SET_STRING(iovec[3], header_pid);
         IOVEC_SET_STRING(iovec[4], buffer);
 
@@ -228,7 +226,7 @@ static int write_to_kmsg(
 
         zero(iovec);
         IOVEC_SET_STRING(iovec[0], header_priority);
-        IOVEC_SET_STRING(iovec[1], file_name_from_path(__progname));
+        IOVEC_SET_STRING(iovec[1], __progname);
         IOVEC_SET_STRING(iovec[2], header_pid);
         IOVEC_SET_STRING(iovec[3], buffer);
         IOVEC_SET_STRING(iovec[4], (char*) "\n");
@@ -274,3 +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);