lib/libc/posix/_open.c

   1 #include <lib.h>
   2 #define open    _open
   3 #include <fcntl.h>
   4 #include <stdarg.h>
   5 #include <string.h>
   6
   7 #if _ANSI
   8 PUBLIC int open(const char *name, int flags, ...)
   9 #else
  10 PUBLIC int open(const char *name, int flags)
  11 #endif
  12 {
  13   va_list argp;
  14   message m;
  15
  16   va_start(argp, flags);
  17   if (flags & O_CREAT) {
  18         m.m1_i1 = strlen(name) + 1;
  19         m.m1_i2 = flags;
  20         /* Since it's a vararg parameter that is smaller than
  21          * an int, the mode was passed as an int.
  22          */
  23         m.m1_i3 = va_arg(argp, int);
  24         m.m1_p1 = (char *) name;
  25   } else {
  26         _loadname(name, &m);
  27         m.m3_i2 = flags;
  28   }
  29   va_end(argp);
  30   return (_syscall(FS, OPEN, &m));
  31 }