X-Git-Url: http://git.madism.org/?a=blobdiff_plain;f=lib-sys%2Funix.c;h=8a1b86017858267505ec6a18deadad01fc98bc13;hb=c8102caaf1221828c06752f9ac69271fb999c145;hp=f2141c0c18849a0655a459ac80afdee7ec986d20;hpb=97677c08933e16e25ecb3c12473ef1efdab7962b;p=apps%2Fmadmutt.git

diff --git a/lib-sys/unix.c b/lib-sys/unix.c
index f2141c0..8a1b860 100644
--- a/lib-sys/unix.c
+++ b/lib-sys/unix.c
@@ -9,6 +9,7 @@
  */
 
 #include <errno.h>
+#include <ctype.h>
 #include <stdlib.h>
 #include <sys/wait.h>
 #include <unistd.h>
@@ -16,13 +17,13 @@
 #include <lib-lib/macros.h>
 #include <lib-lib/mem.h>
 #include <lib-lib/str.h>
+#include <lib-lib/file.h>
 
 #include "unix.h"
 #include "mutt_signal.h"
 
 #include <imap/imap.h> /* for imap_wait_keepalive EEEEK */
 
-
 /* Extract the real name from /etc/passwd's GECOS field.
  * When set, honor the regular expression in rx,
  * otherwise assume that the GECOS field is a comma-separated list.
@@ -156,3 +157,41 @@ int _mutt_system(const char *cmd, int flags)
 
     return (pid > 0 && WIFEXITED(rc)) ? WEXITSTATUS(rc) : -1;
 }
+
+int getdnsdomainname(char *s, ssize_t n)
+{
+    char tmp[1024];
+    FILE *f;
+
+    if ((f = fopen("/etc/resolv.conf", "r")) == NULL)
+        return -1;
+
+    while (fgets(tmp, sizeof(tmp), f)) {
+        const char *p = skipspaces(tmp);
+
+        if (m_strncmp("domain", p, 6) && m_strncmp("search", p, 6))
+            continue;
+
+        p += 6;
+
+        while (*p) {
+            int trailing_dot;
+            const char *q;
+
+            p = skipspaces(p);
+            q = m_strnextsp(p);
+
+            trailing_dot = q[-1] == '.';
+            if (!trailing_dot || q > p + 1) {
+                m_strncpy(s, n, p, q - trailing_dot - p);
+                safe_fclose(&f);
+                return 0;
+            }
+
+            p = q;
+        }
+    }
+
+    safe_fclose (&f);
+    return -1;
+}