mirror of
https://git.proxmox.com/git/libgit2
synced 2025-05-05 01:27:05 +00:00
4aa664ae39
Introduce `git_buf_grow_by` to incrementally increase the size of a `git_buf`, performing an overflow calculation on the growth.
42 lines
982 B
C
42 lines
982 B
C
#include "clar_libgit2.h"
|
|
#include "buffer.h"
|
|
|
|
#if defined(GIT_ARCH_64)
|
|
#define TOOBIG 0xffffffffffffff00
|
|
#else
|
|
#define TOOBIG 0xffffff00
|
|
#endif
|
|
|
|
/**
|
|
* If we make a ridiculously large request the first time we
|
|
* actually allocate some space in the git_buf, the realloc()
|
|
* will fail. And because the git_buf_grow() wrapper always
|
|
* sets mark_oom, the code in git_buf_try_grow() will free
|
|
* the internal buffer and set it to git_buf__oom.
|
|
*
|
|
* We initialized the internal buffer to (the static variable)
|
|
* git_buf__initbuf. The purpose of this test is to make sure
|
|
* that we don't try to free the static buffer.
|
|
*/
|
|
void test_buf_oom__grow(void)
|
|
{
|
|
git_buf buf = GIT_BUF_INIT;
|
|
|
|
git_buf_clear(&buf);
|
|
|
|
cl_assert(git_buf_grow(&buf, TOOBIG) == -1);
|
|
cl_assert(git_buf_oom(&buf));
|
|
|
|
git_buf_free(&buf);
|
|
}
|
|
|
|
void test_buf_oom__grow_by(void)
|
|
{
|
|
git_buf buf = GIT_BUF_INIT;
|
|
|
|
buf.size = SIZE_MAX-10;
|
|
|
|
cl_assert(git_buf_grow_by(&buf, 50) == -1);
|
|
cl_assert(git_buf_oom(&buf));
|
|
}
|