[hackers] [quark] Rename fd to listenfd for readability || sin

[git]

commit 29c8cfa2017b1d8401ca01850aa8cb6c0530834f
Author: sin <s...@2f30.org>
Date:   Thu Aug 21 23:11:23 2014 +0100

    Rename fd to listenfd for readability
    
    Avoid confusion in functions that use 'fd' and shadow the
    global fd.

diff --git a/quark.c b/quark.c
index 3e18509..d211abb 100644
--- a/quark.c
+++ b/quark.c
@@ -97,7 +97,7 @@ static char reqbuf[MAXBUFLEN];
 static char resbuf[MAXBUFLEN];
 static char reqhost[256];
 static char reqmod[256];
-static int fd = -1;
+static int listenfd = -1;
 static Request req;
 
 char *
@@ -555,7 +555,7 @@ sighandler(int sig) {
                while(0 < waitpid(-1, NULL, WNOHANG));
        } else {
                logerrmsg("info signal %s, closing down
", strsignal(sig));
-               close(fd);
+               close(listenfd);
                running = 0;
        }
 }
@@ -637,15 +637,15 @@ main(int argc, char *argv[]) {
                logerrmsg("error        getaddrinfo: %s
", gai_strerror(i));
                goto err;
        }
-       if ((fd = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol)) == 
-1) {
+       if ((listenfd = socket(ai->ai_family, ai->ai_socktype, 
ai->ai_protocol)) == -1) {
                logerrmsg("error        socket: %s
", strerror(errno));
                goto err;
        }
-       if (bind(fd, ai->ai_addr, ai->ai_addrlen) == -1) {
+       if (bind(listenfd, ai->ai_addr, ai->ai_addrlen) == -1) {
                logerrmsg("error        bind: %s
", strerror(errno));
                goto err;
        }
-       if (listen(fd, SOMAXCONN) == -1) {
+       if (listen(listenfd, SOMAXCONN) == -1) {
                logerrmsg("error        listen: %s
", strerror(errno));
                goto err;
        }
@@ -695,13 +695,13 @@ main(int argc, char *argv[]) {
 
        logmsg("ready   %s:%s   %s
", servername, serverport, docroot);
 
-       serve(fd); /* main loop */
-       close(fd);
+       serve(listenfd); /* main loop */
+       close(listenfd);
        freeaddrinfo(ai);
        return EXIT_SUCCESS;
 err:
-       if (fd != -1)
-               close(fd);
+       if (listenfd != -1)
+               close(listenfd);
        if (ai)
                freeaddrinfo(ai);
        return EXIT_FAILURE;