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qmail/timeoutwrite.c
D. J. Bernstein af9625ddf9 qmail 1.01
2009-12-18 13:07:04 +01:00

25 lines
489 B
C

#include "timeoutwrite.h"
#include "select.h"
#include "error.h"
#include "readwrite.h"
int timeoutwrite(fdt,buf,len) int fdt; char *buf; int len;
{
fd_set wfds;
struct timeval tv;
int fd;
tv.tv_sec = (fdt >> 10);
tv.tv_usec = 0;
fd = (fdt & 1023);
FD_ZERO(&wfds);
FD_SET(fd,&wfds);
if (select(fd + 1,(fd_set *) 0,&wfds,(fd_set *) 0,&tv) == -1) return -1;
if (FD_ISSET(fd,&wfds)) return write(fd,buf,len);
shutdown(fd,1);
errno = error_timeout;
return -1;
}