[hackers] [ii][patch] add support for OpenBSD unveil(2)

[Gleydson Soares]

the following patch brings support for OpenBSD's unveil(2) mechanism for
ii.


diff --git a/ii.c b/ii.c
index 6c87314..76be002 100644
--- a/ii.c
+++ b/ii.c
@@ -827,7 +827,19 @@ main(int argc, char *argv[])
        else
                ircfd = tcpopen(host, service);
 
+       r = snprintf(ircpath, sizeof(ircpath), "%s/%s", prefix, host);
+       if (r < 0 || (size_t)r >= sizeof(ircpath)) {
+               fprintf(stderr, "%s: path to irc directory too long\n", argv0);
+               exit(1);
+       }
+       create_dirtree(ircpath);
+
 #ifdef __OpenBSD__
+       /* OpenBSD unveil(2) support */
+       if (unveil(ircpath, "rwc") == -1) {
+               fprintf(stderr, "%s: unveil: %s\n", argv0, strerror(errno));
+               exit(1);
+       }
        /* OpenBSD pledge(2) support */
        if (pledge("stdio rpath wpath cpath dpath", NULL) == -1) {
                fprintf(stderr, "%s: pledge: %s\n", argv0, strerror(errno));
@@ -835,13 +847,6 @@ main(int argc, char *argv[])
        }
 #endif
 
-       r = snprintf(ircpath, sizeof(ircpath), "%s/%s", prefix, host);
-       if (r < 0 || (size_t)r >= sizeof(ircpath)) {
-               fprintf(stderr, "%s: path to irc directory too long\n", argv0);
-               exit(1);
-       }
-       create_dirtree(ircpath);
-
        channelmaster = channel_add(""); /* master channel */
        if (key)
                loginkey(ircfd, key);