mirror of https://git.ffmpeg.org/ffmpeg.git
http: make length/offset-related variables unsigned.
Fixes #5992, reported and found by Paul Cher <paulcher@icloud.com>.
This commit is contained in:
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51020adcec
commit
2a05c8f813
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@ -62,8 +62,8 @@ typedef struct HTTPContext {
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int line_count;
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int http_code;
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/* Used if "Transfer-Encoding: chunked" otherwise -1. */
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int64_t chunksize;
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int64_t off, end_off, filesize;
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uint64_t chunksize;
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uint64_t off, end_off, filesize;
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char *location;
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HTTPAuthState auth_state;
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HTTPAuthState proxy_auth_state;
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@ -95,9 +95,9 @@ typedef struct HTTPContext {
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AVDictionary *cookie_dict;
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int icy;
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/* how much data was read since the last ICY metadata packet */
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int icy_data_read;
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uint64_t icy_data_read;
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/* after how many bytes of read data a new metadata packet will be found */
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int icy_metaint;
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uint64_t icy_metaint;
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char *icy_metadata_headers;
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char *icy_metadata_packet;
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AVDictionary *metadata;
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@ -489,7 +489,7 @@ static int http_open(URLContext *h, const char *uri, int flags,
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else
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h->is_streamed = 1;
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s->filesize = -1;
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s->filesize = UINT64_MAX;
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s->location = av_strdup(uri);
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if (!s->location)
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return AVERROR(ENOMEM);
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@ -616,9 +616,9 @@ static void parse_content_range(URLContext *h, const char *p)
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if (!strncmp(p, "bytes ", 6)) {
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p += 6;
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s->off = strtoll(p, NULL, 10);
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s->off = strtoull(p, NULL, 10);
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if ((slash = strchr(p, '/')) && strlen(slash) > 0)
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s->filesize = strtoll(slash + 1, NULL, 10);
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s->filesize = strtoull(slash + 1, NULL, 10);
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}
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if (s->seekable == -1 && (!s->is_akamai || s->filesize != 2147483647))
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h->is_streamed = 0; /* we _can_ in fact seek */
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@ -808,8 +808,9 @@ static int process_line(URLContext *h, char *line, int line_count,
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if ((ret = parse_location(s, p)) < 0)
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return ret;
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*new_location = 1;
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} else if (!av_strcasecmp(tag, "Content-Length") && s->filesize == -1) {
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s->filesize = strtoll(p, NULL, 10);
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} else if (!av_strcasecmp(tag, "Content-Length") &&
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s->filesize == UINT64_MAX) {
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s->filesize = strtoull(p, NULL, 10);
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} else if (!av_strcasecmp(tag, "Content-Range")) {
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parse_content_range(h, p);
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} else if (!av_strcasecmp(tag, "Accept-Ranges") &&
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@ -818,7 +819,7 @@ static int process_line(URLContext *h, char *line, int line_count,
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h->is_streamed = 0;
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} else if (!av_strcasecmp(tag, "Transfer-Encoding") &&
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!av_strncasecmp(p, "chunked", 7)) {
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s->filesize = -1;
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s->filesize = UINT64_MAX;
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s->chunksize = 0;
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} else if (!av_strcasecmp(tag, "WWW-Authenticate")) {
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ff_http_auth_handle_header(&s->auth_state, tag, p);
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@ -842,7 +843,7 @@ static int process_line(URLContext *h, char *line, int line_count,
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if (parse_cookie(s, p, &s->cookie_dict))
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av_log(h, AV_LOG_WARNING, "Unable to parse '%s'\n", p);
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} else if (!av_strcasecmp(tag, "Icy-MetaInt")) {
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s->icy_metaint = strtoll(p, NULL, 10);
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s->icy_metaint = strtoull(p, NULL, 10);
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} else if (!av_strncasecmp(tag, "Icy-", 4)) {
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if ((ret = parse_icy(s, tag, p)) < 0)
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return ret;
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@ -972,7 +973,7 @@ static int http_read_header(URLContext *h, int *new_location)
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char line[MAX_URL_SIZE];
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int err = 0;
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s->chunksize = -1;
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s->chunksize = UINT64_MAX;
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for (;;) {
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if ((err = http_get_line(s, line, sizeof(line))) < 0)
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@ -1006,7 +1007,7 @@ static int http_connect(URLContext *h, const char *path, const char *local_path,
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int post, err;
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char headers[HTTP_HEADERS_SIZE] = "";
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char *authstr = NULL, *proxyauthstr = NULL;
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int64_t off = s->off;
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uint64_t off = s->off;
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int len = 0;
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const char *method;
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int send_expect_100 = 0;
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@ -1060,7 +1061,7 @@ static int http_connect(URLContext *h, const char *path, const char *local_path,
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// server supports seeking by analysing the reply headers.
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if (!has_header(s->headers, "\r\nRange: ") && !post && (s->off > 0 || s->end_off || s->seekable == -1)) {
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len += av_strlcatf(headers + len, sizeof(headers) - len,
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"Range: bytes=%"PRId64"-", s->off);
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"Range: bytes=%"PRIu64"-", s->off);
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if (s->end_off)
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len += av_strlcatf(headers + len, sizeof(headers) - len,
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"%"PRId64, s->end_off - 1);
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@ -1135,7 +1136,7 @@ static int http_connect(URLContext *h, const char *path, const char *local_path,
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s->line_count = 0;
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s->off = 0;
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s->icy_data_read = 0;
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s->filesize = -1;
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s->filesize = UINT64_MAX;
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s->willclose = 0;
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s->end_chunked_post = 0;
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s->end_header = 0;
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@ -1175,15 +1176,13 @@ static int http_buf_read(URLContext *h, uint8_t *buf, int size)
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memcpy(buf, s->buf_ptr, len);
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s->buf_ptr += len;
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} else {
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int64_t target_end = s->end_off ? s->end_off : s->filesize;
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if ((!s->willclose || s->chunksize < 0) &&
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target_end >= 0 && s->off >= target_end)
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uint64_t target_end = s->end_off ? s->end_off : s->filesize;
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if ((!s->willclose || s->chunksize == UINT64_MAX) && s->off >= target_end)
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return AVERROR_EOF;
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len = ffurl_read(s->hd, buf, size);
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if (!len && (!s->willclose || s->chunksize < 0) &&
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target_end >= 0 && s->off < target_end) {
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if (!len && (!s->willclose || s->chunksize == UINT64_MAX) && s->off < target_end) {
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av_log(h, AV_LOG_ERROR,
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"Stream ends prematurely at %"PRId64", should be %"PRId64"\n",
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"Stream ends prematurely at %"PRIu64", should be %"PRIu64"\n",
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s->off, target_end
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);
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return AVERROR(EIO);
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@ -1247,7 +1246,7 @@ static int http_read_stream(URLContext *h, uint8_t *buf, int size)
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return err;
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}
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if (s->chunksize >= 0) {
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if (s->chunksize != UINT64_MAX) {
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if (!s->chunksize) {
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char line[32];
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@ -1256,13 +1255,19 @@ static int http_read_stream(URLContext *h, uint8_t *buf, int size)
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return err;
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} while (!*line); /* skip CR LF from last chunk */
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s->chunksize = strtoll(line, NULL, 16);
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s->chunksize = strtoull(line, NULL, 16);
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av_log(NULL, AV_LOG_TRACE, "Chunked encoding data size: %"PRId64"'\n",
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av_log(h, AV_LOG_TRACE,
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"Chunked encoding data size: %"PRIu64"'\n",
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s->chunksize);
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if (!s->chunksize)
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return 0;
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else if (s->chunksize == UINT64_MAX) {
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av_log(h, AV_LOG_ERROR, "Invalid chunk size %"PRIu64"\n",
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s->chunksize);
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return AVERROR(EINVAL);
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}
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}
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size = FFMIN(size, s->chunksize);
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}
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@ -1273,17 +1278,17 @@ static int http_read_stream(URLContext *h, uint8_t *buf, int size)
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read_ret = http_buf_read(h, buf, size);
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if ( (read_ret < 0 && s->reconnect && (!h->is_streamed || s->reconnect_streamed) && s->filesize > 0 && s->off < s->filesize)
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|| (read_ret == 0 && s->reconnect_at_eof && (!h->is_streamed || s->reconnect_streamed))) {
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int64_t target = h->is_streamed ? 0 : s->off;
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uint64_t target = h->is_streamed ? 0 : s->off;
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if (s->reconnect_delay > s->reconnect_delay_max)
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return AVERROR(EIO);
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av_log(h, AV_LOG_INFO, "Will reconnect at %"PRId64" error=%s.\n", s->off, av_err2str(read_ret));
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av_log(h, AV_LOG_INFO, "Will reconnect at %"PRIu64" error=%s.\n", s->off, av_err2str(read_ret));
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av_usleep(1000U*1000*s->reconnect_delay);
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s->reconnect_delay = 1 + 2*s->reconnect_delay;
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seek_ret = http_seek_internal(h, target, SEEK_SET, 1);
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if (seek_ret != target) {
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av_log(h, AV_LOG_ERROR, "Failed to reconnect at %"PRId64".\n", target);
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av_log(h, AV_LOG_ERROR, "Failed to reconnect at %"PRIu64".\n", target);
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return read_ret;
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}
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@ -1338,10 +1343,11 @@ static int store_icy(URLContext *h, int size)
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{
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HTTPContext *s = h->priv_data;
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/* until next metadata packet */
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int remaining = s->icy_metaint - s->icy_data_read;
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uint64_t remaining;
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if (remaining < 0)
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if (s->icy_metaint < s->icy_data_read)
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return AVERROR_INVALIDDATA;
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remaining = s->icy_metaint - s->icy_data_read;
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if (!remaining) {
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/* The metadata packet is variable sized. It has a 1 byte header
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@ -1455,7 +1461,7 @@ static int64_t http_seek_internal(URLContext *h, int64_t off, int whence, int fo
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{
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HTTPContext *s = h->priv_data;
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URLContext *old_hd = s->hd;
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int64_t old_off = s->off;
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uint64_t old_off = s->off;
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uint8_t old_buf[BUFFER_SIZE];
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int old_buf_size, ret;
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AVDictionary *options = NULL;
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@ -1466,7 +1472,7 @@ static int64_t http_seek_internal(URLContext *h, int64_t off, int whence, int fo
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((whence == SEEK_CUR && off == 0) ||
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(whence == SEEK_SET && off == s->off)))
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return s->off;
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else if ((s->filesize == -1 && whence == SEEK_END))
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else if ((s->filesize == UINT64_MAX && whence == SEEK_END))
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return AVERROR(ENOSYS);
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if (whence == SEEK_CUR)
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@ -1621,7 +1627,7 @@ redo:
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s->buf_ptr = s->buffer;
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s->buf_end = s->buffer;
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s->line_count = 0;
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s->filesize = -1;
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s->filesize = UINT64_MAX;
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cur_auth_type = s->proxy_auth_state.auth_type;
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/* Note: This uses buffering, potentially reading more than the
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