diff options
Diffstat (limited to 'sysdeps/unix/sysv/mkdir.c')
-rw-r--r-- | sysdeps/unix/sysv/mkdir.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/mkdir.c b/sysdeps/unix/sysv/mkdir.c new file mode 100644 index 0000000000..16713f9e48 --- /dev/null +++ b/sysdeps/unix/sysv/mkdir.c @@ -0,0 +1,97 @@ +/* Copyright (C) 1992, 1994, 1995 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 +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +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 <stddef.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <stdlib.h> +#include <sys/wait.h> +#include <string.h> + +/* Create a directory named PATH with protections MODE. */ +int +DEFUN(__mkdir, (path, mode), CONST char *path AND mode_t mode) +{ + char *cmd = __alloca (80 + strlen (path)); + char *p; + int status; + mode_t mask; + int save; + struct stat statbuf; + + if (path == NULL) + { + errno = EINVAL; + return -1; + } + + /* Check for some errors. */ + if (__stat (path, &statbuf) < 0) + { + if (errno != ENOENT) + return -1; + /* There is no file by that name. Good. */ + } + else + { + errno = EEXIST; + return -1; + } + + /* Race condition, but how else to do it? */ + mask = __umask (0777); + (void) __umask (mask); + + p = cmd; + *p++ = 'm'; + *p++ = 'k'; + *p++ = 'd'; + *p++ = 'i'; + *p++ = 'r'; + *p++ = ' '; + + mode &= ~mask; + *p++ = '-'; + *p++ = 'm'; + *p++ = ' '; + *p++ = ((mode & 07000) >> 9) + '0'; + *p++ = ((mode & 0700) >> 6) + '0'; + *p++ = ((mode & 070) >> 3) + '0'; + *p++ = ((mode & 07)) + '0'; + *p++ = ' '; + + strcpy (p, path); + + save = errno; + /* If system doesn't set errno, but the mkdir fails, we really + have no idea what went wrong. EIO is the vaguest error I + can think of, so I'll use that. */ + errno = EIO; + status = system (cmd); + if (WIFEXITED (status) && WEXITSTATUS (status) == 0) + { + errno = save; + return 0; + } + else + return -1; +} + +weak_alias (__mkdir, mkdir) |