sxirc

commit 2b82fd514708a80dc4f2e59d52e9f57a0dd31ec9
parent 2254ae69911673c071276967d6823316939ae7be
Author: aabacchus <ben@bvnf.space>
Date:   Tue, 29 Nov 2022 16:10:02 +0000

add irc infra

Diffstat:
M
sxirc.c
 | 
64
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-

1 file changed, 63 insertions(+), 1 deletion(-)
diff --git a/sxirc.c b/sxirc.c
@@ -1,5 +1,9 @@
+#define _POSIX_C_SOURCE 200809L
+#include <netdb.h>
+#include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <sys/socket.h>
 #include <unistd.h>
 #include <libsx.h>
 
@@ -104,10 +108,68 @@ setup_sx(int argc, char **argv, XtAppContext *app, Widget *output) {
     return 0;
 }
 
+int sock_write(int sfd, char *msg, ...){
+    va_list ap;
+    va_start(ap, msg);
+    if (vdprintf(sfd, msg, ap) < 0) {
+        perror("sock_write");
+    va_end(ap);
+        return 1;
+    }
+    va_end(ap);
+    return 0;
+}
+
+int
+server_connect(char *nodename, char *servname) {
+    int s, sfd;
+    struct addrinfo hints = {0}, *result, *rp;
+    hints.ai_family = AF_UNSPEC;
+    hints.ai_socktype = SOCK_STREAM;
+    hints.ai_flags = AI_PASSIVE;
+
+    s = getaddrinfo(nodename, servname, &hints, &result);
+    if (s != 0) {
+        fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(s));
+        return -1;
+    }
+
+    for (rp = result; rp != NULL; rp = rp->ai_next) {
+        sfd = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
+        if (sfd == -1)
+            continue;
+
+        if (connect(sfd, rp->ai_addr, rp->ai_addrlen) == 0)
+            break;
+
+        if (close(sfd) == -1) {
+            perror("close");
+            return -1;
+        }
+    }
+
+    freeaddrinfo(result);
+
+    if (rp == NULL)
+        return -1;
+
+    return sfd;
+}
+
 int
 setup_irc(int *sockfd) {
+    /* initially hardcode the user details; TODO make a popup to prompt for them */
+    char nodename[] = "irc.libera.chat";
+    char servname[] = "6667";
+    char nick[] = "sxirc";
     int sfd;
-    sfd = 0;
+
+    sfd = server_connect(nodename, servname);
+    if (sfd == -1)
+        return 1;
+
+    /* identify */
+    sock_write(sfd, "NICK %s\r\nUSER %s 8 x :%s\r\n", nick, nick, nick);
 
     *sockfd = sfd;
     return 0;