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https://gitlab.torproject.org/tpo/core/tor.git
synced 2024-11-28 06:13:31 +01:00
buf: use BUF_MAX_LEN
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9e988406c7
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@ -285,7 +285,7 @@ buf_t *
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buf_new_with_data(const char *cp, size_t sz)
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{
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/* Validate arguments */
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if (!cp || sz <= 0 || sz > INT_MAX - 1) {
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if (!cp || sz <= 0 || sz > BUF_MAX_LEN) {
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return NULL;
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}
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@ -530,9 +530,9 @@ buf_add(buf_t *buf, const char *string, size_t string_len)
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return (int)buf->datalen;
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check();
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if (BUG(buf->datalen > INT_MAX - 1))
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if (BUG(buf->datalen > BUF_MAX_LEN))
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return -1;
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if (BUG(buf->datalen > INT_MAX - 1 - string_len))
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if (BUG(buf->datalen > BUF_MAX_LEN - string_len))
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return -1;
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while (string_len) {
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@ -551,7 +551,7 @@ buf_add(buf_t *buf, const char *string, size_t string_len)
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}
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check();
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tor_assert(buf->datalen <= INT_MAX - 1);
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tor_assert(buf->datalen <= BUF_MAX_LEN);
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return (int)buf->datalen;
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}
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@ -645,7 +645,7 @@ buf_get_bytes(buf_t *buf, char *string, size_t string_len)
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buf_peek(buf, string, string_len);
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buf_drain(buf, string_len);
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check();
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tor_assert(buf->datalen <= INT_MAX - 1);
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tor_assert(buf->datalen <= BUF_MAX_LEN);
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return (int)buf->datalen;
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}
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@ -660,9 +660,9 @@ buf_move_to_buf(buf_t *buf_out, buf_t *buf_in, size_t *buf_flushlen)
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char b[4096];
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size_t cp, len;
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if (BUG(buf_out->datalen > INT_MAX - 1 || *buf_flushlen > INT_MAX - 1))
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if (BUG(buf_out->datalen > BUF_MAX_LEN || *buf_flushlen > BUF_MAX_LEN))
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return -1;
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if (BUG(buf_out->datalen > INT_MAX - 1 - *buf_flushlen))
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if (BUG(buf_out->datalen > BUF_MAX_LEN - *buf_flushlen))
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return -1;
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len = *buf_flushlen;
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@ -670,7 +670,7 @@ buf_move_to_buf(buf_t *buf_out, buf_t *buf_in, size_t *buf_flushlen)
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len = buf_in->datalen;
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cp = len; /* Remember the number of bytes we intend to copy. */
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tor_assert(cp <= INT_MAX - 1);
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tor_assert(cp <= BUF_MAX_LEN);
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while (len) {
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/* This isn't the most efficient implementation one could imagine, since
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* it does two copies instead of 1, but I kinda doubt that this will be
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@ -692,9 +692,9 @@ buf_move_all(buf_t *buf_out, buf_t *buf_in)
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tor_assert(buf_out);
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if (!buf_in)
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return;
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if (BUG(buf_out->datalen > INT_MAX - 1 || buf_in->datalen > INT_MAX - 1))
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if (BUG(buf_out->datalen > BUF_MAX_LEN || buf_in->datalen > BUF_MAX_LEN))
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return;
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if (BUG(buf_out->datalen > INT_MAX - 1 - buf_in->datalen))
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if (BUG(buf_out->datalen > BUF_MAX_LEN - buf_in->datalen))
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return;
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if (buf_out->head == NULL) {
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@ -748,7 +748,7 @@ buf_find_pos_of_char(char ch, buf_pos_t *out)
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char *cp = memchr(chunk->data+pos, ch, chunk->datalen - pos);
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if (cp) {
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out->chunk = chunk;
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tor_assert(cp - chunk->data <= INT_MAX - 1);
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tor_assert(cp - chunk->data <= BUF_MAX_LEN);
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out->pos = (int)(cp - chunk->data);
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return out->chunk_pos + out->pos;
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} else {
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@ -764,7 +764,7 @@ buf_find_pos_of_char(char ch, buf_pos_t *out)
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static inline int
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buf_pos_inc(buf_pos_t *pos)
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{
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tor_assert(pos->pos < INT_MAX - 1);
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tor_assert(pos->pos < BUF_MAX_LEN);
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++pos->pos;
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if (pos->pos == (ptrdiff_t)pos->chunk->datalen) {
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if (!pos->chunk->next)
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@ -811,7 +811,7 @@ buf_find_string_offset(const buf_t *buf, const char *s, size_t n)
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buf_pos_init(buf, &pos);
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while (buf_find_pos_of_char(*s, &pos) >= 0) {
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if (buf_matches_at_pos(&pos, s, n)) {
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tor_assert(pos.chunk_pos + pos.pos <= INT_MAX - 1);
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tor_assert(pos.chunk_pos + pos.pos <= BUF_MAX_LEN);
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return (int)(pos.chunk_pos + pos.pos);
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} else {
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if (buf_pos_inc(&pos)<0)
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@ -845,7 +845,7 @@ buf_find_offset_of_char(buf_t *buf, char ch)
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{
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chunk_t *chunk;
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ptrdiff_t offset = 0;
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tor_assert(buf->datalen <= INT_MAX - 1);
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tor_assert(buf->datalen <= BUF_MAX_LEN);
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for (chunk = buf->head; chunk; chunk = chunk->next) {
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char *cp = memchr(chunk->data, ch, chunk->datalen);
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if (cp)
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@ -915,7 +915,7 @@ buf_assert_ok(buf_t *buf)
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for (ch = buf->head; ch; ch = ch->next) {
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total += ch->datalen;
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tor_assert(ch->datalen <= ch->memlen);
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tor_assert(ch->datalen <= INT_MAX - 1);
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tor_assert(ch->datalen <= BUF_MAX_LEN);
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tor_assert(ch->data >= &ch->mem[0]);
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tor_assert(ch->data <= &ch->mem[0]+ch->memlen);
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if (ch->data == &ch->mem[0]+ch->memlen) {
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