kolibrios/programs/develop/metcc/trunk/libc/file/fwrite.c
Andrey Halyavin (halyavin) 51d395d0cc initial import of metcc project
git-svn-id: svn://kolibrios.org@145 a494cfbc-eb01-0410-851d-a64ba20cac60
2006-09-07 14:14:53 +00:00

23 lines
701 B
C

#include "stdio.h"
int fwrite(const void* buffer,int size,int count,FILE* file)
{
void* p;
if ((file->mode & 3==FILE_OPEN_READ) && (file->mode & FILE_OPEN_PLUS==0))
return 0;
if (file->mode & 3==FILE_OPEN_APPEND)
file->filepos=file->filesize;
count=count*size;
if (file->buffersize<file->filepos+count)
{
p=realloc(file->buffer,(file->filepos+count)+(file->filepos+count)<<1);
if (p==0)
return 0;
file->buffer=p;
file->buffersize=(file->filepos+count)+(file->filepos+count)<<1;
}
if (file->filesize<file->filepos+count)
file->filesize=file->filepos+count;
memcpy(file->buffer+file->filepos,buffer,count);
file->filepos+=count;
return count;
}