Minimal HTTP service optimized for size for testing deployment of services or something

gistfile1.c

#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <netdb.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <assert.h>
#include <time.h>

int main(int argc, const char ** argv) {
        int p, c, s = socket(AF_INET, SOCK_STREAM, 0);
        struct sockaddr_in host;
        char h[128] = { 0, };

        assert(argc == 2);
        assert(s != -1);

        p = strtol(argv[1], NULL, 10);

        assert(p > 0);

        host.sin_family = PF_INET;
        host.sin_port = htons(p);
        host.sin_addr.s_addr = 0; // 0.0.0.0

        assert(bind(s, (struct sockaddr *) & host, sizeof(struct sockaddr_in)) == 0);

        assert(listen(s, 1024) == 0);

        gethostname(h, sizeof(h));

        signal(SIGPIPE, SIG_IGN);

        while(1) {
                char b[2 * 1024 * 1024] = { 0, };
                ssize_t l;
                time_t ts;
                struct tm * t;
                const char * head =
                        "HTTP/1.1 200 OK\r\n"
                        "Server: immoschleuder 1.0\r\n"
                        "Cache-Control: no-cache, no-store, must-revalidate\r\n"
                        "Pragma: no-cache\r\n"
                        "Expires: 0\r\n"
                ;

                if((c = accept(s, NULL, NULL)) == -1)
                        continue;

                write(c, head, strlen(head));

                ts = time(NULL);
                t = localtime(& ts);
                strftime(b, sizeof(b), "Date: %a, %d %b %Y %H:%M:%S %Z\r\n", t); // Date: Mon, 15 Jun 2015 13:19:13 GMT
                write(c, b, strlen(b));

                l = read(c, b, sizeof(b));

                write(c, "\r\nREQUEST:\n", 11);
                write(c, b, l - 2);

                write(c, "\nHOSTNAME:\n", 11);
                write(c, h, strlen(h));

                shutdown(c, SHUT_RDWR);
                close(c);
        }

        return EXIT_SUCCESS;
}