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* Update fwrite().
CORE-8080

svn path=/trunk/; revision=63257
This commit is contained in:
Amine Khaldi 2014-05-12 15:32:43 +00:00
parent c36bab312a
commit e68148f878
1 changed files with 29 additions and 26 deletions
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55
reactos/lib/sdk/crt/stdio/file.c
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@ -2506,33 +2506,36 @@ size_t CDECL fwrite(const void *ptr, size_t size, size_t nmemb, FILE* file)
return 0;
_lock_file(file);
if(file->_cnt) {
int pcnt=((unsigned)file->_cnt>wrcnt)? wrcnt: file->_cnt;
memcpy(file->_ptr, ptr, pcnt);
file->_cnt -= pcnt;
file->_ptr += pcnt;
written = pcnt;
wrcnt -= pcnt;
ptr = (const char*)ptr + pcnt;
} else if(!(file->_flag & _IOWRT)) {
if(file->_flag & _IORW) {
file->_flag |= _IOWRT;
} else {
_unlock_file(file);
return 0;
}
}
if(wrcnt) {
/* Flush buffer */
int res=flush_buffer(file);
if(!res) {
int pwritten = _write(file->_file, ptr, wrcnt);
if (pwritten <= 0)
{
file->_flag |= _IOERR;
pwritten=0;
while(wrcnt) {
if(file->_cnt) {
int pcnt=((unsigned)file->_cnt>wrcnt)? wrcnt: file->_cnt;
memcpy(file->_ptr, ptr, pcnt);
file->_cnt -= pcnt;
file->_ptr += pcnt;
written += pcnt;
wrcnt -= pcnt;
ptr = (const char*)ptr + pcnt;
} else if(!file->_bufsiz && (file->_flag & _IONBF)) {
if(!(file->_flag & _IOWRT)) {
if(file->_flag & _IORW)
file->_flag |= _IOWRT;
else
break;
}
written += pwritten;
if(_write(file->_file, ptr, wrcnt) <= 0) {
file->_flag |= _IOERR;
break;
}
written += wrcnt;
wrcnt = 0;
} else {
if(_flsbuf(*(const char*)ptr, file) == EOF)
break;
written++;
wrcnt--;
ptr = (const char*)ptr + 1;
}
}