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- /* open.c: to insulate <fcntl.h> from the rest of rc. */
-
- #include <fcntl.h>
- #include "rc.h"
-
- /* prototype for open() follows. comment out if necessary */
-
- /*extern int open(const char *, int,...);*/
-
- /*
- Opens a file with the necessary flags. Assumes the following
- declaration for redirtype:
-
- enum redirtype {
- rFrom, rCreate, rAppend, rHeredoc, rHerestring
- };
- */
-
- static const int mode_masks[] = {
- /* rFrom */ O_RDONLY,
- /* rCreate */ O_TRUNC | O_CREAT | O_WRONLY,
- /* rAppend */ O_APPEND | O_CREAT | O_WRONLY
- };
-
- extern int rc_open(const char *name, redirtype m) {
- if ((unsigned) m >= arraysize(mode_masks))
- panic("bad mode passed to rc_open");
- return open(name, mode_masks[m], 0666);
- }
-