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[oftp] / src / ftp.c

diff --git a/src/ftp.c b/src/ftp.c
new file mode 100644 (file)
index 0000000..46fad28
--- /dev/null
+++ b/src/ftp.c
@@ -0,0 +1,79 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <netdb.h>
+#include "darray.h"
+#include "ftp.h"
+#include "util.h"
+
+struct ftp *ftp_alloc(void)
+{
+       struct ftp *ftp;
+
+       if(!(ftp = malloc(sizeof *ftp))) {
+               return 0;
+       }
+       ftp->ctl = ftp->data = -1;
+       return ftp;
+}
+
+void ftp_free(struct ftp *ftp)
+{
+       if(!ftp) return;
+       if(ftp->ctl >= 0) {
+               ftp_close(ftp);
+       }
+}
+
+int ftp_connect(struct ftp *ftp, const char *hostname, int port)
+{
+       struct hostent *host;
+       struct sockaddr_in addr;
+
+       if((ftp->ctl = socket(PF_INET, SOCK_STREAM, 0)) == -1) {
+               errmsg("failed to create control socket\n");
+               return -1;
+       }
+
+       if(!(host = gethostbyname(hostname))) {
+               errmsg("failed to resolve host: %s\n", hostname);
+               closesocket(ftp->ctl);
+               ftp->ctl = -1;
+               return -1;
+       }
+
+       addr.sin_family = AF_INET;
+       addr.sin_addr.s_addr = inet_addr(host->h_addr);
+       addr.sin_port = htons(port);
+
+       if(connect(ftp->ctl, (struct sockaddr*)&addr, sizeof addr) == -1) {
+               errmsg("failed to connect to: %s (port: %d)\n", hostname, port);
+               closesocket(ftp->ctl);
+               ftp->ctl = -1;
+               return -1;
+       }
+               
+       return 0;
+}
+
+void ftp_close(struct ftp *ftp)
+{
+       if(ftp->ctl >= 0) {
+               closesocket(ftp->ctl);
+       }
+       if(ftp->data >= 0) {
+               closesocket(ftp->data);
+       }
+}
+
+int ftp_update(struct ftp *ftp)
+{
+       return -1;
+}
+
+int ftp_chdir(struct ftp *ftp, const char *dirname)
+{
+       return -1;
+}