all: server client
server:
- gcc server.c -o irssi-notify
+ gcc notify.c -o irssi-notify
client:
- gcc client.c -o irssi-listen
+ gcc listen.c -o irssi-listen
clean:
rm irssi-notify irssi-listen
+++ /dev/null
-#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;
-}
--- /dev/null
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netdb.h>
+#include <arpa/inet.h>
+#include <sys/wait.h>
+#include <signal.h>
+
+#define PORT "3490" // the port users will be connecting to
+
+#define BACKLOG 10 // how many pending connections queue will hold
+
+void sigchld_handler(int s)
+{
+ while(waitpid(-1, NULL, WNOHANG) > 0);
+}
+
+// get sockaddr, IPv4
+void *get_in_addr(struct sockaddr *sa)
+{
+ if (sa->sa_family == AF_INET) {
+ return &(((struct sockaddr_in*)sa)->sin_addr);
+ }
+}
+
+int main(void)
+{
+ int sockfd, activefd; // listen on sockfd, new connection on activefd
+ struct addrinfo hints, *servinfo, *p;
+ struct sockaddr_storage their_addr; // connector's address information
+ socklen_t sin_size;
+ struct sigaction sa;
+ int yes=1;
+ char source[INET6_ADDRSTRLEN];
+// char CLIENT_IP[15] = "107.21.205.69\0";
+ int rv;
+
+ memset(&hints, 0, sizeof hints); // make sure the struct is empty
+ hints.ai_family = AF_INET; // IPv4
+ hints.ai_socktype = SOCK_STREAM;
+ hints.ai_flags = AI_PASSIVE; // use my IP
+
+ if ((rv = getaddrinfo(NULL, PORT, &hints, &servinfo)) != 0) {
+ fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(rv));
+ return 1;
+ }
+
+ // servinfo now points to a linked list of 1 or more struct addrinfos
+
+ // loop through all the results and bind 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("irssi-notify: socket");
+ continue;
+ }
+
+ if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &yes,
+ sizeof(int)) == -1) {
+ perror("setsockopt");
+ exit(1);
+ }
+
+ if (bind(sockfd, p->ai_addr, p->ai_addrlen) == -1) {
+ close(sockfd);
+ perror("irssi-notify: bind");
+ continue;
+ }
+
+ break;
+ }
+
+ if (p == NULL) {
+ fprintf(stderr, "irssi-notify: failed to bind\n");
+ return 2;
+ }
+
+ freeaddrinfo(servinfo); // all done with this structure
+
+ if (listen(sockfd, BACKLOG) == -1) {
+ perror("listen");
+ exit(1);
+ }
+
+ sa.sa_handler = sigchld_handler; // reap all dead processes
+ sigemptyset(&sa.sa_mask);
+ sa.sa_flags = SA_RESTART;
+ if (sigaction(SIGCHLD, &sa, NULL) == -1) {
+ perror("sigaction");
+ exit(1);
+ }
+
+ printf("irssi-notify: waiting for connections...\n");
+
+ while(1) { // main accept() loop
+ sin_size = sizeof their_addr;
+ activefd = accept(sockfd, (struct sockaddr *)&their_addr, &sin_size);
+ if (activefd == -1) {
+ perror("accept");
+ continue;
+ }
+
+ inet_ntop(their_addr.ss_family,
+ get_in_addr((struct sockaddr *)&their_addr),
+ source, sizeof source);
+
+ if (strcmp(source, "50.16.219.8") != 0 &&
+ strcmp(source, "127.0.0.1") != 0){
+ close(activefd);
+ continue;
+ }
+
+ if (!fork()) { // this is the child process
+ close(sockfd); // child doesn't need the listener
+ char buf[4096];
+ if (recv(activefd, buf, 99, 0) == -1) {
+ perror("recv");
+ exit(1);
+ }
+ buf[4096] = '\0';
+ printf("irssi-notify: recieved '%s'\n", buf);
+ if (!fork()){
+ setenv("DISPLAY", ":0", 1); // doesn't seem to be doing the trick
+ execlp("notify-display",
+ "notify-display", buf, NULL);
+ // the first argument to execl is the command, the second is the first argument
+ // passed to the program ($0), customarily the evocation of the command
+ }
+ close(activefd);
+ exit(0);
+ }
+ close(activefd);
+ }
+
+ return 0;
+}
--- /dev/null
+#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;
+}
+++ /dev/null
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <errno.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <netdb.h>
-#include <arpa/inet.h>
-#include <sys/wait.h>
-#include <signal.h>
-
-#define PORT "3490" // the port users will be connecting to
-
-#define BACKLOG 10 // how many pending connections queue will hold
-
-void sigchld_handler(int s)
-{
- while(waitpid(-1, NULL, WNOHANG) > 0);
-}
-
-// get sockaddr, IPv4
-void *get_in_addr(struct sockaddr *sa)
-{
- if (sa->sa_family == AF_INET) {
- return &(((struct sockaddr_in*)sa)->sin_addr);
- }
-}
-
-int main(void)
-{
- int sockfd, activefd; // listen on sockfd, new connection on activefd
- struct addrinfo hints, *servinfo, *p;
- struct sockaddr_storage their_addr; // connector's address information
- socklen_t sin_size;
- struct sigaction sa;
- int yes=1;
- char source[INET6_ADDRSTRLEN];
-// char CLIENT_IP[15] = "107.21.205.69\0";
- int rv;
-
- memset(&hints, 0, sizeof hints); // make sure the struct is empty
- hints.ai_family = AF_INET; // IPv4
- hints.ai_socktype = SOCK_STREAM;
- hints.ai_flags = AI_PASSIVE; // use my IP
-
- if ((rv = getaddrinfo(NULL, PORT, &hints, &servinfo)) != 0) {
- fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(rv));
- return 1;
- }
-
- // servinfo now points to a linked list of 1 or more struct addrinfos
-
- // loop through all the results and bind 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("irssi-notify: socket");
- continue;
- }
-
- if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &yes,
- sizeof(int)) == -1) {
- perror("setsockopt");
- exit(1);
- }
-
- if (bind(sockfd, p->ai_addr, p->ai_addrlen) == -1) {
- close(sockfd);
- perror("irssi-notify: bind");
- continue;
- }
-
- break;
- }
-
- if (p == NULL) {
- fprintf(stderr, "irssi-notify: failed to bind\n");
- return 2;
- }
-
- freeaddrinfo(servinfo); // all done with this structure
-
- if (listen(sockfd, BACKLOG) == -1) {
- perror("listen");
- exit(1);
- }
-
- sa.sa_handler = sigchld_handler; // reap all dead processes
- sigemptyset(&sa.sa_mask);
- sa.sa_flags = SA_RESTART;
- if (sigaction(SIGCHLD, &sa, NULL) == -1) {
- perror("sigaction");
- exit(1);
- }
-
- printf("irssi-notify: waiting for connections...\n");
-
- while(1) { // main accept() loop
- sin_size = sizeof their_addr;
- activefd = accept(sockfd, (struct sockaddr *)&their_addr, &sin_size);
- if (activefd == -1) {
- perror("accept");
- continue;
- }
-
- inet_ntop(their_addr.ss_family,
- get_in_addr((struct sockaddr *)&their_addr),
- source, sizeof source);
-
- if (strcmp(source, "50.16.219.8") != 0 &&
- strcmp(source, "127.0.0.1") != 0){
- close(activefd);
- continue;
- }
-
- if (!fork()) { // this is the child process
- close(sockfd); // child doesn't need the listener
- char buf[4096];
- if (recv(activefd, buf, 99, 0) == -1) {
- perror("recv");
- exit(1);
- }
- buf[4096] = '\0';
- printf("irssi-notify: recieved '%s'\n", buf);
- if (!fork()){
- setenv("DISPLAY", ":0", 1); // doesn't seem to be doing the trick
- execlp("notify-display",
- "notify-display", buf, NULL);
- // the first argument to execl is the command, the second is the first argument
- // passed to the program ($0), customarily the evocation of the command
- }
- close(activefd);
- exit(0);
- }
- close(activefd);
- }
-
- return 0;
-}
disinclined.org / git / irssi-notify.git / commitdiff
