Fix various memory leaks

Fixes #362

i3status.c

@@ -207,6 +207,7 @@ static char *get_config_path(void) {
     config_path = resolve_tilde("~/.i3status.conf");
     if (path_exists(config_path))
         return config_path;
+    free(config_path);
     char *buf = strdup(xdg_config_dirs);
     char *tok = strtok(buf, ":");
     while (tok != NULL) {
@@ -230,7 +231,6 @@ static char *get_config_path(void) {
 
     die("Unable to find the configuration file (looked at "
         "~/.i3status.conf, $XDG_CONFIG_HOME/i3status/config, " SYSCONFDIR "/i3status.conf and $XDG_CONFIG_DIRS/i3status/config)");
-    return NULL;
 }
 
 /*
@@ -807,4 +807,6 @@ int main(int argc, char *argv[]) {
         struct timespec ts = {interval - 1 - (current_timeval.tv_sec % interval), (10e5 - current_timeval.tv_usec) * 1000};
         nanosleep(&ts, NULL);
     }
+
+    yajl_gen_free(json_gen);
 }

src/print_ddate.c

@@ -173,4 +173,5 @@ void print_ddate(yajl_gen json_gen, char *buffer, const char *format, time_t t)
     const size_t num = sizeof(placeholders) / sizeof(placeholder_t);
     buffer = format_placeholders(format, &placeholders[0], num);
     OUTPUT_FULL_TEXT(buffer);
+    free(buffer);
 }

src/print_run_watch.c

@@ -1,6 +1,7 @@
 // vim:ts=4:sw=4:expandtab
 #include <config.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include <yajl/yajl_gen.h>
 #include <yajl/yajl_version.h>
@@ -35,4 +36,5 @@ void print_run_watch(yajl_gen json_gen, char *buffer, const char *title, const c
 
     END_COLOR;
     OUTPUT_FULL_TEXT(buffer);
+    free(buffer);
 }

src/print_time.c

@@ -82,4 +82,7 @@ void print_time(yajl_gen json_gen, char *buffer, const char *title, const char *
 out:
     *outwalk = '\0';
     OUTPUT_FULL_TEXT(buffer);
+    if (format_time != NULL) {
+        free(buffer);
+    }
 }