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lavf/ftp: make response parsing more RFC compliant

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Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
This commit is contained in:
Lukasz Marek 2014-07-03 21:08:23 +02:00
parent cf8c44fc47
commit 3ba6dce48d
1 changed files with 28 additions and 17 deletions
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45
libavformat/ftp.c
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@ -119,7 +119,7 @@ static int ftp_get_line(FTPContext *s, char *line, int line_size)
*/
static int ftp_status(FTPContext *s, char **line, const int response_codes[])
{
int err, i, dash = 0, result = 0, code_found = 0;
int err, i, dash = 0, result = 0, code_found = 0, linesize;
char buf[CONTROL_BUFFER_SIZE];
AVBPrint line_buffer;
@ -135,25 +135,36 @@ static int ftp_status(FTPContext *s, char **line, const int response_codes[])
av_log(s, AV_LOG_DEBUG, "%s\n", buf);
if (strlen(buf) < 4)
continue;
linesize = strlen(buf);
err = 0;
for (i = 0; i < 3; ++i) {
if (buf[i] < '0' || buf[i] > '9')
continue;
err *= 10;
err += buf[i] - '0';
if (linesize >= 3) {
for (i = 0; i < 3; ++i) {
if (buf[i] < '0' || buf[i] > '9') {
err = 0;
break;
}
err *= 10;
err += buf[i] - '0';
}
}
dash = !!(buf[3] == '-');
for (i = 0; response_codes[i]; ++i) {
if (err == response_codes[i]) {
if (line)
av_bprintf(&line_buffer, "%s", buf);
code_found = 1;
result = err;
break;
if (!code_found) {
for (i = 0; response_codes[i]; ++i) {
if (err == response_codes[i]) {
code_found = 1;
result = err;
break;
}
}
}
if (code_found) {
if (line)
av_bprintf(&line_buffer, "%s\r\n", buf);
if (linesize >= 4) {
if (!dash && buf[3] == '-')
dash = err;
else if (err == dash && buf[3] == ' ')
dash = 0;
}
}
}