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| author | Marcel Raad <Marcel.Raad@teamviewer.com> | 2019-05-25 19:24:13 +0200 |
|---|---|---|
| committer | Marcel Raad <Marcel.Raad@teamviewer.com> | 2019-06-05 20:38:08 +0200 |
| commit | 992083b1abe2f19947abe1d5ba01c488458f6e66 (patch) | |
| tree | 741ded2075c811e9353e8ce405e6a66a8ac7df97 /docs/examples | |
| parent | e23c52b3295a525fbaae9e7ed3e7061fea6dffc2 (diff) | |
| download | curl-992083b1abe2f19947abe1d5ba01c488458f6e66.tar.gz | |
examples/fopen: fix comparison
As want is size_t, (file->buffer_pos - want) is unsigned, so checking
if it's less than zero makes no sense.
Check if file->buffer_pos is less than want instead to avoid the
unsigned integer wraparound.
Closes https://github.com/curl/curl/pull/3975
Diffstat (limited to 'docs/examples')
| -rw-r--r-- | docs/examples/fopen.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/docs/examples/fopen.c b/docs/examples/fopen.c index f1706fbe6..7151addde 100644 --- a/docs/examples/fopen.c +++ b/docs/examples/fopen.c @@ -211,7 +211,7 @@ static int fill_buffer(URL_FILE *file, size_t want) static int use_buffer(URL_FILE *file, size_t want) { /* sort out buffer */ - if((file->buffer_pos - want) <= 0) { + if(file->buffer_pos <= want) { /* ditch buffer - write will recreate */ free(file->buffer); file->buffer = NULL; |