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Add ugly check

This commit is contained in:
Alcaro 2017-11-24 22:14:03 +01:00
parent 053fbd6f27
commit 7817ba2340
1 changed files with 7 additions and 0 deletions
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7
libretro-common/file/nbio/nbio_unixmmap.c
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@ -68,6 +68,13 @@ bool nbio_iterate(struct nbio_t* handle)
void nbio_resize(struct nbio_t* handle, size_t len) void nbio_resize(struct nbio_t* handle, size_t len)
{ {
if (len < handle->len)
{
/* this works perfectly fine if this check is removed, but it won't work on other nbio implementations */
/* therefore, it's blocked so nobody accidentally relies on it */
puts("ERROR - attempted file shrink operation, not implemented");
abort();
}
if (ftruncate(handle->fd, len) != 0) if (ftruncate(handle->fd, len) != 0)
{ {
puts("ERROR - couldn't resize file (ftruncate)"); puts("ERROR - couldn't resize file (ftruncate)");