better names for client/server

[irssi-notify.git] / notify.c

diff --git a/notify.c b/notify.c
new file mode 100644 (file)
index 0000000..0f00e34
--- /dev/null
+++ b/notify.c
@@ -0,0 +1,77 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <netdb.h>
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
+
+#include <arpa/inet.h>
+
+#define PORT "3490" // the port client will be connecting to 
+
+#define MAXDATASIZE 100 // max number of bytes we can get at once 
+
+// get sockaddr, IPv4 or IPv6:
+void *get_in_addr(struct sockaddr *sa)
+{
+       if (sa->sa_family == AF_INET) {
+               return &(((struct sockaddr_in*)sa)->sin_addr);
+       }
+
+       return &(((struct sockaddr_in6*)sa)->sin6_addr);
+}
+
+int main(int argc, char *argv[])
+{
+       int sockfd, numbytes;  
+       char buf[MAXDATASIZE];
+       struct addrinfo hints, *servinfo, *p;
+       int rv;
+       char s[INET6_ADDRSTRLEN];
+
+       if (argc != 3) {
+           fprintf(stderr,"usage: client hostname 'message'\n");
+           exit(1);
+       }
+
+       memset(&hints, 0, sizeof hints);
+       hints.ai_family = AF_UNSPEC;
+       hints.ai_socktype = SOCK_STREAM;
+
+       if ((rv = getaddrinfo(argv[1], PORT, &hints, &servinfo)) != 0) {
+               fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(rv));
+               return 1;
+       }
+
+       // loop through all the results and connect to the first we can
+       for(p = servinfo; p != NULL; p = p->ai_next) {
+               if ((sockfd = socket(p->ai_family, p->ai_socktype,
+                               p->ai_protocol)) == -1) {
+                       perror("client: socket");
+                       continue;
+               }
+
+               if (connect(sockfd, p->ai_addr, p->ai_addrlen) == -1) {
+                       close(sockfd);
+                       perror("client: connect");
+                       continue;
+               }
+
+               break;
+       }
+
+       if (p == NULL) {
+               fprintf(stderr, "client: failed to connect\n");
+               return 2;
+       }
+
+    if (send(sockfd, argv[2], strlen(argv[2])+1, 0) == -1)
+        perror("send");
+
+       close(sockfd);
+
+       return 0;
+}