/*
* TCP protocol
- * Copyright (c) 2002 Fabrice Bellard.
+ * Copyright (c) 2002 Fabrice Bellard
*
* This file is part of FFmpeg.
*
#include <unistd.h>
#include "network.h"
#include "os_support.h"
+#if HAVE_SYS_SELECT_H
+#include <sys/select.h>
+#endif
#include <sys/time.h>
typedef struct TCPContext {
/* return non zero if error */
static int tcp_open(URLContext *h, const char *uri, int flags)
{
- struct sockaddr_in dest_addr;
- char hostname[1024], *q;
+ struct addrinfo hints, *ai, *cur_ai;
int port, fd = -1;
TCPContext *s = NULL;
fd_set wfds;
int fd_max, ret;
struct timeval tv;
socklen_t optlen;
- char proto[1024],path[1024],tmp[1024]; // PETR: protocol and path strings
-
- url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname),
- &port, path, sizeof(path), uri); // PETR: use url_split
- if (strcmp(proto,"tcp")) goto fail; // PETR: check protocol
- if ((q = strchr(hostname,'@'))) { strcpy(tmp,q+1); strcpy(hostname,tmp); } // PETR: take only the part after '@' for tcp protocol
-
- s = av_malloc(sizeof(TCPContext));
- if (!s)
- return AVERROR(ENOMEM);
- h->priv_data = s;
-
- if (port <= 0 || port >= 65536)
- goto fail;
+ char hostname[1024],proto[1024],path[1024];
+ char portstr[10];
if(!ff_network_init())
return AVERROR(EIO);
- dest_addr.sin_family = AF_INET;
- dest_addr.sin_port = htons(port);
- if (resolve_host(&dest_addr.sin_addr, hostname) < 0)
- goto fail;
+ url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname),
+ &port, path, sizeof(path), uri);
+ if (strcmp(proto,"tcp") || port <= 0 || port >= 65536)
+ return AVERROR(EINVAL);
+
+ memset(&hints, 0, sizeof(hints));
+ hints.ai_family = AF_UNSPEC;
+ hints.ai_socktype = SOCK_STREAM;
+ snprintf(portstr, sizeof(portstr), "%d", port);
+ if (getaddrinfo(hostname, portstr, &hints, &ai))
+ return AVERROR(EIO);
- fd = socket(AF_INET, SOCK_STREAM, 0);
+ cur_ai = ai;
+
+ restart:
+ fd = socket(cur_ai->ai_family, cur_ai->ai_socktype, cur_ai->ai_protocol);
if (fd < 0)
goto fail;
ff_socket_nonblock(fd, 1);
redo:
- ret = connect(fd, (struct sockaddr *)&dest_addr,
- sizeof(dest_addr));
+ ret = connect(fd, cur_ai->ai_addr, cur_ai->ai_addrlen);
if (ret < 0) {
if (ff_neterrno() == FF_NETERROR(EINTR))
goto redo;
if (ret != 0)
goto fail;
}
+ s = av_malloc(sizeof(TCPContext));
+ if (!s) {
+ freeaddrinfo(ai);
+ return AVERROR(ENOMEM);
+ }
+ h->priv_data = s;
+ h->is_streamed = 1;
s->fd = fd;
+ freeaddrinfo(ai);
return 0;
fail:
+ if (cur_ai->ai_next) {
+ /* Retry with the next sockaddr */
+ cur_ai = cur_ai->ai_next;
+ if (fd >= 0)
+ closesocket(fd);
+ goto restart;
+ }
ret = AVERROR(EIO);
fail1:
if (fd >= 0)
closesocket(fd);
- av_free(s);
+ freeaddrinfo(ai);
return ret;
}
if (len < 0) {
if (ff_neterrno() != FF_NETERROR(EINTR) &&
ff_neterrno() != FF_NETERROR(EAGAIN))
- return AVERROR(errno);
+ return AVERROR(ff_neterrno());
} else return len;
} else if (ret < 0) {
return -1;
if (len < 0) {
if (ff_neterrno() != FF_NETERROR(EINTR) &&
ff_neterrno() != FF_NETERROR(EAGAIN))
- return AVERROR(errno);
+ return AVERROR(ff_neterrno());
continue;
}
size -= len;
return 0;
}
+static int tcp_get_file_handle(URLContext *h)
+{
+ TCPContext *s = h->priv_data;
+ return s->fd;
+}
+
URLProtocol tcp_protocol = {
"tcp",
tcp_open,
tcp_write,
NULL, /* seek */
tcp_close,
+ .url_get_file_handle = tcp_get_file_handle,
};