diff options
Diffstat (limited to 'io')
| -rw-r--r-- | io/getwd.c | 23 |
1 files changed, 15 insertions, 8 deletions
@@ -1,4 +1,4 @@ -/* Copyright (C) 1991, 1992 Free Software Foundation, Inc. +/* Copyright (C) 1991, 1992, 1996 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -16,7 +16,6 @@ License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -#include <ansidecl.h> #include <errno.h> #include <limits.h> #include <string.h> @@ -26,22 +25,30 @@ Cambridge, MA 02139, USA. */ If successful, return BUF. If not, put an error message in BUF and return NULL. BUF should be at least PATH_MAX bytes long. */ char * -DEFUN(getwd, (buf), char *buf) +getwd (buf) + char *buf; { +#ifndef PATH_MAX +#define PATH_MAX 1024 + char fetchbuf[PATH_MAX]; +#else +#define fetchbuf buf +#endif + if (buf == NULL) { errno = EINVAL; return NULL; } -#ifndef PATH_MAX -#define PATH_MAX 1024 /* Arbitrary; this function is unreliable. */ -#endif - if (getcwd (buf, PATH_MAX) == NULL) + if (getcwd (fetchbuf, PATH_MAX) == NULL) { - (void) strncpy (buf, strerror (errno), PATH_MAX); + strncpy (buf, strerror (errno), PATH_MAX); return NULL; } + if (fetchbuf != buf) + strcpy (buf, fetchbuf); + return buf; } |