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Cover all cases of read.

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Files smaller than GT_MAX_READ cause guess_type to hang in an endless loop.

Closes: #285
This commit is contained in:
Sebastian Ramacher 2013-01-17 10:13:31 +01:00
parent a6e6c3f108
commit 9765b43113
1 changed files with 5 additions and 4 deletions
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9
document.c
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@ -538,17 +538,18 @@ guess_type(const char* path)
const int fd = fileno(f);
guchar* content = NULL;
size_t length = 0u;
while (uncertain == TRUE && length < GT_MAX_READ) {
ssize_t bytes_read = -1;
while (uncertain == TRUE && length < GT_MAX_READ && bytes_read != 0) {
g_free((void*)content_type);
content_type = NULL;
content = g_realloc(content, length + BUFSIZ);
const ssize_t r = read(fd, content + length, BUFSIZ);
if (r == -1) {
bytes_read = read(fd, content + length, BUFSIZ);
if (bytes_read == -1) {
break;
}
length += r;
length += bytes_read;
content_type = g_content_type_guess(NULL, content, length, &uncertain);
girara_debug("new guess: %s uncertain: %d, read: %zu\n", content_type, uncertain, length);
}