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- /****************************************************************************
- *
- * $Source: /unixb/home/unixlib/source/unixlib37/src/unix/c/RCS/readv,v $
- * $Date: 1996/10/30 22:04:51 $
- * $Revision: 1.1 $
- * $State: Rel $
- * $Author: unixlib $
- *
- * $Log: readv,v $
- * Revision 1.1 1996/10/30 22:04:51 unixlib
- * Initial revision
- *
- ***************************************************************************/
-
- static const char rcs_id[] = "$Id: readv,v 1.1 1996/10/30 22:04:51 unixlib Rel $";
-
- /* unix.c.readv: Written by Nick Burrett, 6 October 1996. */
-
- #include <stdlib.h>
- #include <unistd.h>
- #include <string.h>
- #include <sys/uio.h>
-
- /* Read data from file descriptor FD, and put the result in the
- buffers described by VECTOR, which is a vector of COUNT `struct iovec's.
- The buffers are filled in the order specified. */
- int readv (int fd, const struct iovec *vector, size_t count)
- {
- int bytes;
- int bytes_read, i;
-
- /* Find the total number of bytes to be read. */
- bytes = 0;
- for (i = 0; i < count; ++i)
- {
- bytes_read = read (fd, vector[i].iov_base, vector[i].iov_len);
- if (bytes_read <= 0)
- return -1;
- bytes += bytes_read;
- }
-
- return bytes;
- }
-