lib/other/writev.c

   1 #include <errno.h>
   2 #include <stdio.h>
   3 #include <sys/uio.h>
   4
   5 ssize_t writev(int fildes, const struct iovec *iov, int iovcnt)
   6 {
   7 #if DEBUG
   8         fprintf(stderr, "bind: not implemented for fd %d\n", socket);
   9 #endif
  10         errno= ENOSYS;
  11         return -1;
  12
  13 #if 0
  14         int i, r;
  15         char *p;
  16         ssize_t l, sum;
  17
  18         /* We should buffer */
  19         sum= 0;
  20         for (i= 0; i<iovcnt; i++)
  21         {
  22                 p= iov[i].iov_base;
  23                 l= iov[i].iov_len;
  24                 while (l > 0)
  25                 {
  26                         r= write(fildes, p, l);
  27                         if (r <= 0)
  28                         {
  29                                 assert(sum == 0);
  30                                 return r;
  31                         }
  32                         p += r;
  33                         l -= r;
  34                         sum += r;
  35                 }
  36         }
  37         return sum;
  38 #endif
  39 }