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/*
* Copyright (C) the libgit2 contributors. All rights reserved.
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#include "buf.h"
#include "common.h"
int git_buf_sanitize(git_buf *buf)
{
GIT_ASSERT_ARG(buf);
if (buf->reserved > 0)
buf->ptr[0] = '\0';
else
buf->ptr = git_str__initstr;
buf->size = 0;
return 0;
}
int git_buf_tostr(git_str *out, git_buf *buf)
{
GIT_ASSERT_ARG(out);
GIT_ASSERT_ARG(buf);
if (git_buf_sanitize(buf) < 0)
return -1;
out->ptr = buf->ptr;
out->asize = buf->reserved;
out->size = buf->size;
buf->ptr = git_str__initstr;
buf->reserved = 0;
buf->size = 0;
return 0;
}
int git_buf_fromstr(git_buf *out, git_str *str)
{
GIT_ASSERT_ARG(out);
GIT_ASSERT_ARG(str);
out->ptr = str->ptr;
out->reserved = str->asize;
out->size = str->size;
str->ptr = git_str__initstr;
str->asize = 0;
str->size = 0;
return 0;
}
void git_buf_dispose(git_buf *buf)
{
if (!buf)
return;
if (buf->ptr != git_str__initstr)
git__free(buf->ptr);
buf->ptr = git_str__initstr;
buf->reserved = 0;
buf->size = 0;
}
#ifndef GIT_DEPRECATE_HARD
int git_buf_grow(git_buf *buffer, size_t target_size)
{
char *newptr;
if (buffer->reserved >= target_size)
return 0;
if (buffer->ptr == git_str__initstr)
newptr = git__malloc(target_size);
else
newptr = git__realloc(buffer->ptr, target_size);
if (!newptr)
return -1;
buffer->ptr = newptr;
buffer->reserved = target_size;
return 0;
}
int git_buf_set(git_buf *buffer, const void *data, size_t datalen)
{
size_t alloclen;
GIT_ERROR_CHECK_ALLOC_ADD(&alloclen, datalen, 1);
if (git_buf_grow(buffer, alloclen) < 0)
return -1;
memmove(buffer->ptr, data, datalen);
buffer->size = datalen;
buffer->ptr[buffer->size] = '\0';
return 0;
}
int git_buf_is_binary(const git_buf *buf)
{
git_str str = GIT_STR_INIT_CONST(buf->ptr, buf->size);
return git_str_is_binary(&str);
}
int git_buf_contains_nul(const git_buf *buf)
{
git_str str = GIT_STR_INIT_CONST(buf->ptr, buf->size);
return git_str_contains_nul(&str);
}
void git_buf_free(git_buf *buffer)
{
git_buf_dispose(buffer);
}
#endif
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