Introduce LTTNG_RELAYD_WORKING_DIRECTORY environment variable
[lttng-tools.git] / src / bin / lttng-relayd / main.c
index ad97a0b9b9871e395ed055860b853b93f55b5e78..5f72c32a906f700ec14009766d056ead3e49b375 100644 (file)
@@ -406,6 +406,23 @@ end:
        return ret;
 }
 
+static int parse_env_options(void)
+{
+       int ret = 0;
+       char *value = NULL;
+
+       value = lttng_secure_getenv(DEFAULT_LTTNG_RELAYD_WORKING_DIRECTORY_ENV);
+       if (value) {
+               opt_working_directory = strdup(value);
+               if (!opt_working_directory) {
+                       ERR("Failed to allocate working directory string (\"%s\")",
+                                       value);
+                       ret = -1;
+               }
+       }
+       return ret;
+}
+
 static int set_options(int argc, char **argv)
 {
        int c, ret = 0, option_index = 0, retval = 0;
@@ -3686,7 +3703,17 @@ int main(int argc, char **argv)
        int ret = 0, retval = 0;
        void *status;
 
-       /* Parse arguments */
+       /* Parse environment variables */
+       ret = parse_env_options();
+       if (ret) {
+               retval = -1;
+               goto exit_options;
+       }
+
+       /*
+        * Parse arguments.
+        * Command line arguments overwrite environment.
+        */
        progname = argv[0];
        if (set_options(argc, argv)) {
                retval = -1;
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