LibUCW: Implemented OptionalInclude to configuration files.

diff --git a/ucw/conf-input.c b/ucw/conf-input.c
index ddfef9bd621fa954e6e41e88454b7b8682a84d3f..b264a24b8759b4233187a535bf507c5606d2d002 100644 (file)
--- a/ucw/conf-input.c
+++ b/ucw/conf-input.c
@@ -20,6 +20,7 @@
 
 #include <stdlib.h>
 #include <string.h>
+#include <errno.h>
 #include <fcntl.h>
 
 /* Text file parser */
@@ -239,7 +240,8 @@ parse_fastbuf(struct cf_context *cc, const char *name_fb, struct fastbuf *fb, un
     char *pars[p->words-1];
     for (uns i=1; i<p->words; i++)
       pars[i-1] = p->copy_buf.ptr + p->word_buf.ptr[i];
-    if (!strcasecmp(name, "include"))
+    int optional_include = !strcasecmp(name, "optionalinclude");
+    if (optional_include || !strcasecmp(name, "include"))
     {
       if (p->words != 2)
        err = "Expecting one filename";
@@ -251,6 +253,8 @@ parse_fastbuf(struct cf_context *cc, const char *name_fb, struct fastbuf *fb, un
        goto error;
       struct fastbuf *new_fb = bopen_try(pars[0], O_RDONLY, 1<<14);
       if (!new_fb) {
+       if (optional_include && errno == ENOENT)
+         continue;
        err = cf_printf("Cannot open file %s: %m", pars[0]);
        goto error;
       }