Mirror of :pserver:cvs@cvs.fefe.de:/cvs libowfat https://www.fefe.de/libowfat/
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 

61 lines
1.1 KiB

#include <unistd.h>
#include "socket.h"
#ifdef __linux__
#ifdef __GLIBC__
#include <sys/sendfile.h>
#else
#ifdef __dietlibc__
#include <sys/sendfile.h>
#else
#include <linux/unistd.h>
_syscall4(int,sendfile,int,out,int,in,long *,offset,unsigned long,count)
#endif
#endif
int socket_sendfile(int out,int in,uint32 offset,uint32 bytes) {
off_t tmp=offset;
return sendfile(out,in,&tmp,bytes);
}
#else
#ifdef _HPUX_SOURCE
/* http://www.devresource.hp.com/STK/man/10.30/sendfile_2.html */
#include <sys/socket.h>
int socket_sendfile(int out,int in,uint32 offset,uint32 bytes) {
return sendfile(out,in,offset,bytes,0,0);
}
#else
#define BUFSIZE 16384
int socket_sendfile(int out,int in,uint32 offset,uint32 bytes) {
char buf[BUFSIZE];
uint32 n,m;
uint32 sent=0;
if (lseek(in,offset,SEEK_SET) != offset)
return -1;
while (bytes>0) {
char* tmp=buf;
uint32 tobedone;
if ((n=read(in,tmp,(bytes<BUFSIZE)?bytes:BUFSIZE))<=0)
return (sent?sent:-1);
while (n>0) {
if ((m=write(out,tmp,n))<0)
goto abort;
sent+=m;
n-=m;
tmp+=m;
}
}
abort:
return sent;
}
#endif
#endif