[hackers] [quark] Fortify error-cases || FRIGN

[git]

commit 8001703f501a0c1ff503d8743bcc28520d1aa945
Author: FRIGN <d...@frign.de>
Date:   Tue Aug 12 19:17:19 2014 +0200

    Fortify error-cases
    
    We don't want to play with our luck here.

diff --git a/quark.c b/quark.c
index 5a4c69b..361cb18 100644
--- a/quark.c
+++ b/quark.c
@@ -95,7 +95,7 @@ static char reqbuf[MAXBUFLEN+1];
 static char resbuf[MAXBUFLEN+1];
 static char reqhost[256];
 static char reqmod[256];
-static int fd;
+static int fd = -1;
 static Request req;
 
 char *
@@ -504,7 +504,7 @@ sighandler(int sig) {
 
 int
 main(int argc, char *argv[]) {
-       struct addrinfo hints, *ai;
+       struct addrinfo hints, *ai = NULL;
        struct passwd *upwd;
        struct group *gpwd;
        int i;
@@ -595,7 +595,7 @@ main(int argc, char *argv[]) {
        freeaddrinfo(ai);
        return EXIT_SUCCESS;
 err:
-       if (fd)
+       if (fd != -1)
                close(fd);
        if (ai)
                freeaddrinfo(ai);