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Import sources from 2011-03-30 iso image

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This commit is contained in:
Taru Karttunen 2011-03-30 15:46:40 +03:00
commit e5888a1ffd
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23
sys/src/libstdio/fseeko.c Executable file
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@ -0,0 +1,23 @@
/*
* pANS stdio -- fseeko
*/
#include "iolib.h"
int fseeko(FILE *f, long long offs, int type){
switch(f->state){
case ERR:
case CLOSED:
return -1;
case WR:
fflush(f);
break;
case RD:
if(type==1 && f->buf!=f->unbuf)
offs-=f->wp-f->rp;
break;
}
if(f->flags&STRING || seek(f->fd, offs, type)==-1) return -1;
if(f->state==RD) f->rp=f->wp=f->buf;
if(f->state!=OPEN)
f->state=RDWR;
return 0;
}