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rtmp: Check return codes of net IO operations

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Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Samuel Pitoiset 2012-05-24 13:48:25 +02:00 committed by Martin Storsjö
parent a4d3f3580b
commit bba287fdac
2 changed files with 68 additions and 32 deletions
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15
libavformat/rtmppkt.c
View File

@ -151,7 +151,10 @@ int ff_rtmp_packet_read(URLContext *h, RTMPPacket *p,
offset += chunk_size;
size += chunk_size;
if (data_size > 0) {
ffurl_read_complete(h, &t, 1); //marker
if ((ret = ffurl_read_complete(h, &t, 1)) < 0) { // marker
ff_rtmp_packet_destroy(p);
return ret;
}
size++;
if (t != (0xC0 + channel_id))
return -1;
@ -167,6 +170,7 @@ int ff_rtmp_packet_write(URLContext *h, RTMPPacket *pkt,
int mode = RTMP_PS_TWELVEBYTES;
int off = 0;
int size = 0;
int ret;
pkt->ts_delta = pkt->timestamp - prev_pkt[pkt->channel_id].timestamp;
@ -218,15 +222,18 @@ int ff_rtmp_packet_write(URLContext *h, RTMPPacket *pkt,
}
prev_pkt[pkt->channel_id].extra = pkt->extra;
ffurl_write(h, pkt_hdr, p-pkt_hdr);
if ((ret = ffurl_write(h, pkt_hdr, p - pkt_hdr)) < 0)
return ret;
size = p - pkt_hdr + pkt->data_size;
while (off < pkt->data_size) {
int towrite = FFMIN(chunk_size, pkt->data_size - off);
ffurl_write(h, pkt->data + off, towrite);
if ((ret = ffurl_write(h, pkt->data + off, towrite)) < 0)
return ret;
off += towrite;
if (off < pkt->data_size) {
uint8_t marker = 0xC0 | pkt->channel_id;
ffurl_write(h, &marker, 1);
if ((ret = ffurl_write(h, &marker, 1)) < 0)
return ret;
size++;
}
}

85
libavformat/rtmpproto.c
View File

@ -167,10 +167,11 @@ static int gen_connect(URLContext *s, RTMPContext *rt)
pkt.data_size = p - pkt.data;
ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
ret = ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size,
rt->prev_pkt[1]);
ff_rtmp_packet_destroy(&pkt);
return 0;
return ret;
}
/**
@ -194,10 +195,11 @@ static int gen_release_stream(URLContext *s, RTMPContext *rt)
ff_amf_write_null(&p);
ff_amf_write_string(&p, rt->playpath);
ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
ret = ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size,
rt->prev_pkt[1]);
ff_rtmp_packet_destroy(&pkt);
return 0;
return ret;
}
/**
@ -221,10 +223,11 @@ static int gen_fcpublish_stream(URLContext *s, RTMPContext *rt)
ff_amf_write_null(&p);
ff_amf_write_string(&p, rt->playpath);
ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
ret = ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size,
rt->prev_pkt[1]);
ff_rtmp_packet_destroy(&pkt);
return 0;
return ret;
}
/**
@ -248,10 +251,11 @@ static int gen_fcunpublish_stream(URLContext *s, RTMPContext *rt)
ff_amf_write_null(&p);
ff_amf_write_string(&p, rt->playpath);
ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
ret = ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size,
rt->prev_pkt[1]);
ff_rtmp_packet_destroy(&pkt);
return 0;
return ret;
}
/**
@ -276,10 +280,11 @@ static int gen_create_stream(URLContext *s, RTMPContext *rt)
ff_amf_write_null(&p);
rt->create_stream_invoke = rt->nb_invokes;
ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
ret = ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size,
rt->prev_pkt[1]);
ff_rtmp_packet_destroy(&pkt);
return 0;
return ret;
}
@ -305,10 +310,11 @@ static int gen_delete_stream(URLContext *s, RTMPContext *rt)
ff_amf_write_null(&p);
ff_amf_write_number(&p, rt->main_channel_id);
ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
ret = ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size,
rt->prev_pkt[1]);
ff_rtmp_packet_destroy(&pkt);
return 0;
return ret;
}
/**
@ -336,9 +342,13 @@ static int gen_play(URLContext *s, RTMPContext *rt)
ff_amf_write_string(&p, rt->playpath);
ff_amf_write_number(&p, rt->live);
ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
ret = ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size,
rt->prev_pkt[1]);
ff_rtmp_packet_destroy(&pkt);
if (ret < 0)
return ret;
// set client buffer time disguised in ping packet
if ((ret = ff_rtmp_packet_create(&pkt, RTMP_NETWORK_CHANNEL, RTMP_PT_PING,
1, 10)) < 0)
@ -349,10 +359,11 @@ static int gen_play(URLContext *s, RTMPContext *rt)
bytestream_put_be32(&p, 1);
bytestream_put_be32(&p, 256); //TODO: what is a good value here?
ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
ret = ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size,
rt->prev_pkt[1]);
ff_rtmp_packet_destroy(&pkt);
return 0;
return ret;
}
/**
@ -379,7 +390,8 @@ static int gen_publish(URLContext *s, RTMPContext *rt)
ff_amf_write_string(&p, rt->playpath);
ff_amf_write_string(&p, "live");
ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
ret = ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size,
rt->prev_pkt[1]);
ff_rtmp_packet_destroy(&pkt);
return ret;
@ -401,10 +413,11 @@ static int gen_pong(URLContext *s, RTMPContext *rt, RTMPPacket *ppkt)
p = pkt.data;
bytestream_put_be16(&p, 7);
bytestream_put_be32(&p, AV_RB32(ppkt->data+2));
ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
ret = ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size,
rt->prev_pkt[1]);
ff_rtmp_packet_destroy(&pkt);
return 0;
return ret;
}
/**
@ -422,10 +435,11 @@ static int gen_server_bw(URLContext *s, RTMPContext *rt)
p = pkt.data;
bytestream_put_be32(&p, 2500000);
ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
ret = ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size,
rt->prev_pkt[1]);
ff_rtmp_packet_destroy(&pkt);
return 0;
return ret;
}
/**
@ -446,7 +460,8 @@ static int gen_check_bw(URLContext *s, RTMPContext *rt)
ff_amf_write_number(&p, ++rt->nb_invokes);
ff_amf_write_null(&p);
ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
ret = ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size,
rt->prev_pkt[1]);
ff_rtmp_packet_destroy(&pkt);
return ret;
@ -467,10 +482,11 @@ static int gen_bytes_read(URLContext *s, RTMPContext *rt, uint32_t ts)
p = pkt.data;
bytestream_put_be32(&p, rt->bytes_read);
ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]);
ret = ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size,
rt->prev_pkt[1]);
ff_rtmp_packet_destroy(&pkt);
return 0;
return ret;
}
//TODO: Move HMAC code somewhere. Eventually.
@ -617,7 +633,12 @@ static int rtmp_handshake(URLContext *s, RTMPContext *rt)
if (client_pos < 0)
return client_pos;
ffurl_write(rt->stream, tosend, RTMP_HANDSHAKE_PACKET_SIZE + 1);
if ((ret = ffurl_write(rt->stream, tosend,
RTMP_HANDSHAKE_PACKET_SIZE + 1)) < 0) {
av_log(s, AV_LOG_ERROR, "Cannot write RTMP handshake request\n");
return ret;
}
i = ffurl_read_complete(rt->stream, serverdata, RTMP_HANDSHAKE_PACKET_SIZE + 1);
if (i != RTMP_HANDSHAKE_PACKET_SIZE + 1) {
av_log(s, AV_LOG_ERROR, "Cannot read RTMP handshake response\n");
@ -678,9 +699,13 @@ static int rtmp_handshake(URLContext *s, RTMPContext *rt)
return ret;
// write reply back to the server
ffurl_write(rt->stream, tosend, RTMP_HANDSHAKE_PACKET_SIZE);
if ((ret = ffurl_write(rt->stream, tosend,
RTMP_HANDSHAKE_PACKET_SIZE)) < 0)
return ret;
} else {
ffurl_write(rt->stream, serverdata+1, RTMP_HANDSHAKE_PACKET_SIZE);
if ((ret = ffurl_write(rt->stream, serverdata + 1,
RTMP_HANDSHAKE_PACKET_SIZE)) < 0)
return ret;
}
return 0;
@ -710,7 +735,9 @@ static int rtmp_parse_result(URLContext *s, RTMPContext *rt, RTMPPacket *pkt)
return -1;
}
if (!rt->is_input)
ff_rtmp_packet_write(rt->stream, pkt, rt->chunk_size, rt->prev_pkt[1]);
if ((ret = ff_rtmp_packet_write(rt->stream, pkt, rt->chunk_size,
rt->prev_pkt[1])) < 0)
return ret;
rt->chunk_size = AV_RB32(pkt->data);
if (rt->chunk_size <= 0) {
av_log(s, AV_LOG_ERROR, "Incorrect chunk size %d\n", rt->chunk_size);
@ -1201,7 +1228,9 @@ static int rtmp_write(URLContext *s, const uint8_t *buf, int size)
if (rt->flv_off == rt->flv_size) {
rt->skip_bytes = 4;
ff_rtmp_packet_write(rt->stream, &rt->out_pkt, rt->chunk_size, rt->prev_pkt[1]);
if ((ret = ff_rtmp_packet_write(rt->stream, &rt->out_pkt,
rt->chunk_size, rt->prev_pkt[1])) < 0)
return ret;
ff_rtmp_packet_destroy(&rt->out_pkt);
rt->flv_size = 0;
rt->flv_off = 0;