Configuration can include other files.

1 files changed, 26 insertions, 8 deletions

diff --git a/sysdep/unix/main.c b/sysdep/unix/main.c
index 55477913..72f7e852 100644
--- a/sysdep/unix/main.c
+++ b/sysdep/unix/main.c
@@ -18,6 +18,7 @@
 #include <pwd.h>
 #include <grp.h>
 #include <sys/stat.h>
+#include <libgen.h>
 
 #include "nest/bird.h"
 #include "lib/lists.h"
@@ -150,18 +151,34 @@ read_iproute_table(char *file, char *prefix, int max)
 #endif // PATH_IPROUTE_DIR
 
 
-static int conf_fd;
 static char *config_name = PATH_CONFIG;
 
 static int
-cf_read(byte *dest, unsigned int len)
+cf_read(byte *dest, unsigned int len, int fd)
 {
-  int l = read(conf_fd, dest, len);
+  int l = read(fd, dest, len);
   if (l < 0)
     cf_error("Read error");
   return l;
 }
 
+static int
+cf_open(char *filename)
+{
+  char full_name[BIRD_FNAME_MAX];
+  char *cur = filename;
+  int ret;
+
+  if (*filename != '/') {
+    snprintf(full_name, sizeof(full_name), "%s/%s", dirname(config_name), filename);
+    cur = full_name;
+  }
+
+  if ((ret = open(cur, O_RDONLY)) == -1)
+    cf_error("Unable to open included configuration file: %s", cur);
+}
+
+
 void
 sysdep_preconfig(struct config *c)
 {
@@ -189,12 +206,13 @@ unix_read_config(struct config **cp, char *name)
   int ret;
 
   *cp = conf;
-  conf_fd = open(name, O_RDONLY);
-  if (conf_fd < 0)
+  conf->file_fd = open(name, O_RDONLY);
+  if (conf->file_fd < 0)
     return 0;
   cf_read_hook = cf_read;
+  cf_open_hook = cf_open;
   ret = config_parse(conf);
-  close(conf_fd);
+  close(conf->file_fd);
   return ret;
 }
 
@@ -206,7 +224,7 @@ read_config(void)
   if (!unix_read_config(&conf, config_name))
     {
       if (conf->err_msg)
-	die("%s, line %d: %s", config_name, conf->err_lino, conf->err_msg);
+	die("%s, line %d: %s", conf->err_file_name, conf->err_lino, conf->err_msg);
       else
 	die("Unable to open configuration file %s: %m", config_name);
     }
@@ -222,7 +240,7 @@ async_config(void)
   if (!unix_read_config(&conf, config_name))
     {
       if (conf->err_msg)
-	log(L_ERR "%s, line %d: %s", config_name, conf->err_lino, conf->err_msg);
+	log(L_ERR "%s, line %d: %s", conf->err_file_name, conf->err_lino, conf->err_msg);
       else
 	log(L_ERR "Unable to open configuration file %s: %m", config_name);
       config_free(conf);