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[CRT]

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* Update setvbuf() and ungetc().
* Fixes some msvcrt:file tests.
CORE-8540

svn path=/trunk/; revision=64731
This commit is contained in:
Amine Khaldi 2014-10-13 17:50:17 +00:00
parent e9aecdf259
commit 5f83d34467
1 changed files with 42 additions and 19 deletions
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61
reactos/lib/sdk/crt/stdio/file.c
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@ -3674,23 +3674,39 @@ int CDECL _wrename(const wchar_t *oldpath,const wchar_t *newpath)
*/
int CDECL setvbuf(FILE* file, char *buf, int mode, size_t size)
{
_lock_file(file);
if(file->_bufsiz) {
free(file->_base);
file->_bufsiz = 0;
file->_cnt = 0;
}
if(mode == _IOFBF) {
file->_flag &= ~_IONBF;
file->_base = file->_ptr = buf;
if(buf) {
file->_bufsiz = size;
}
} else {
file->_flag |= _IONBF;
}
_unlock_file(file);
return 0;
if(!MSVCRT_CHECK_PMT(file != NULL)) return -1;
if(!MSVCRT_CHECK_PMT(mode==_IONBF || mode==_IOFBF || mode==_IOLBF)) return -1;
if(!MSVCRT_CHECK_PMT(mode==_IONBF || (size>=2 && size<=INT_MAX))) return -1;
_lock_file(file);
fflush(file);
if(file->_flag & _IOMYBUF)
free(file->_base);
file->_flag &= ~(_IONBF | _IOMYBUF | _USERBUF);
file->_cnt = 0;
if(mode == _IONBF) {
file->_flag |= _IONBF;
file->_base = file->_ptr = (char*)&file->_charbuf;
file->_bufsiz = 2;
}else if(buf) {
file->_base = file->_ptr = buf;
file->_flag |= _USERBUF;
file->_bufsiz = size;
}else {
file->_base = file->_ptr = malloc(size);
if(!file->_base) {
file->_bufsiz = 0;
_unlock_file(file);
return -1;
}
file->_flag |= _IOMYBUF;
file->_bufsiz = size;
}
_unlock_file(file);
return 0;
}
/*********************************************************************
@ -3798,12 +3814,18 @@ FILE* CDECL tmpfile(void)
*/
int CDECL ungetc(int c, FILE * file)
{
if (c == EOF)
if(!MSVCRT_CHECK_PMT(file != NULL)) return EOF;
if (c == EOF || !(file->_flag&_IOREAD ||
(file->_flag&_IORW && !(file->_flag&_IOWRT))))
return EOF;
_lock_file(file);
if(file->_bufsiz == 0 && alloc_buffer(file))
if((!(file->_flag & (_IONBF | _IOMYBUF | _USERBUF))
&& alloc_buffer(file))
|| (!file->_cnt && file->_ptr==file->_base))
file->_ptr++;
if(file->_ptr>file->_base) {
file->_ptr--;
if(file->_flag & _IOSTRG) {
@ -3817,6 +3839,7 @@ int CDECL ungetc(int c, FILE * file)
}
file->_cnt++;
clearerr(file);
file->_flag |= _IOREAD;
_unlock_file(file);
return c;
}