1 files changed, 66 insertions, 0 deletions
diff --git a/src/client-tcp.c b/src/client-tcp.c
new file mode 100644
index 0000000..78d8fc4
--- /dev/null
+++ b/src/client-tcp.c
@@ -0,0 +1,66 @@
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <inttypes.h>
+#include <string.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <assert.h>
+#include <netdb.h>
+#include <unistd.h>
+
+#include "client-tcp.h"
+
+struct stream* stream_client_tcp(const char *args) {
+    struct stream *s = NULL;
+    int fd = -1;
+    struct sockaddr_in sa;
+    struct hostent *h;
+    size_t l;
+    uint16_t port = 23;
+
+    char hn[256];
+    l = strcspn(args, ":");
+    if (l > sizeof(hn)-1)
+        l = sizeof(hn)-1;
+    strncpy(hn, args, l);
+    hn[l] = 0;
+
+    if (args[l] == ':')
+        port = atoi(args+l+1);
+
+    s = malloc(sizeof(struct stream));
+    assert(s);
+    memset(s, 0, sizeof(struct stream));
+
+    if ((fd = socket(PF_INET, SOCK_STREAM, 0)) < 0) {
+        fprintf(stderr, "socket(): %s\n", strerror(errno));
+        goto fail;
+    }
+
+    memset(&sa, 0, sizeof(sa));
+    sa.sin_family = AF_INET;
+    sa.sin_port = htons(port);
+    if (!(h = gethostbyname(hn))) {
+        fprintf(stderr, "Unknown host '%s'.\n", hn);
+        goto fail;
+    }
+    sa.sin_addr = *(struct in_addr *) h->h_addr;
+
+    if (connect(fd, (struct sockaddr *) &sa, sizeof(sa)) < 0) {
+        fprintf(stderr, "connect(): %s\n", strerror(errno));
+        goto fail;
+    }
+
+    s->input_fd = s->output_fd = fd;
+    return s;
+    
+fail:
+    free(s);
+    if (fd >= 0)
+        close(fd);
+
+    return NULL;
+}