/* * pANS stdio -- fread */#include "iolib.h" #define BIGN (BUFSIZ/2) long fread(void *p, long recl, long nrec, FILE *f){ char *s; int n, d, c; s=(char *)p; n=recl*nrec; while(n>0){ d=f->wp-f->rp; if(d>0){ if(d>n) d=n; memmove(s, f->rp, d); f->rp+=d; }else{ if(n >= BIGN && f->state==RD && !(f->flags&STRING) && f->buf!=f->unbuf){ d=read(f->fd, s, n); if(d<=0){ f->state=(d==0)?END:ERR; goto ret; } }else{ c=_IO_getc(f); if(c==EOF) goto ret; *s=c; d=1; } } s+=d; n-=d; } ret: return (s-(char *)p)/(recl?recl:1);}
/*
* pANS stdio -- fread
*/
#include "iolib.h"
#define BIGN (BUFSIZ/2)
long fread(void *p, long recl, long nrec, FILE *f){
char *s;
int n, d, c;
s=(char *)p;
n=recl*nrec;
while(n>0){
d=f->wp-f->rp;
if(d>0){
if(d>n)
d=n;
memmove(s, f->rp, d);
f->rp+=d;
}else{
if(n >= BIGN && f->state==RD && !(f->flags&STRING) && f->buf!=f->unbuf){
d=read(f->fd, s, n);
if(d<=0){
f->state=(d==0)?END:ERR;
goto ret;
}
}else{
c=_IO_getc(f);
if(c==EOF)
goto ret;
*s=c;
d=1;
}
}
s+=d;
n-=d;
}
ret:
return (s-(char *)p)/(recl?recl:1);
}