minix/lib/libc/sys/read.c


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#include <sys/cdefs.h>
#include <lib.h>
#include "namespace.h"

#include <string.h>
#include <unistd.h>

#ifdef __weak_alias
__weak_alias(read, _read)
#endif

ssize_t read(int fd, void *buffer, size_t nbytes)
{
  message m;

  memset(&m, 0, sizeof(m));
  m.m_lc_vfs_readwrite.fd = fd;
  m.m_lc_vfs_readwrite.len = nbytes;
  m.m_lc_vfs_readwrite.buf = (vir_bytes)buffer;
  m.m_lc_vfs_readwrite.cum_io = 0;
  return(_syscall(VFS_PROC_NR, VFS_READ, &m));
}