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sudo v 1.8.10p3

    1: /*
    2:  * Copyright (c) 2013-2014 Todd C. Miller <Todd.Miller@courtesan.com>
    3:  *
    4:  * Permission to use, copy, modify, and distribute this software for any
    5:  * purpose with or without fee is hereby granted, provided that the above
    6:  * copyright notice and this permission notice appear in all copies.
    7:  *
    8:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
    9:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   10:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   11:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   12:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   13:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   14:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   15:  */
   16: 
   17: #include <config.h>
   18: 
   19: #include <sys/types.h>
   20: 
   21: #include <stdio.h>
   22: #ifdef STDC_HEADERS
   23: # include <stdlib.h>
   24: # include <stddef.h>
   25: #else
   26: # ifdef HAVE_STDLIB_H
   27: #  include <stdlib.h>
   28: # endif
   29: #endif /* STDC_HEADERS */
   30: #include <errno.h>
   31: 
   32: #define DEFAULT_TEXT_DOMAIN	"sudo"
   33: #include "gettext.h"		/* must be included before missing.h */
   34: 
   35: #include "missing.h"
   36: #include "sudo_debug.h"
   37: #include "sudo_util.h"
   38: 
   39: /*
   40:  * Parse an octal file mode in the range [0, 0777].
   41:  * On success, returns the parsed mode and clears errstr.
   42:  * On error, returns 0 and sets errstr.
   43:  */
   44: int
   45: atomode(const char *cp, const char **errstr)
   46: {
   47:     char *ep;
   48:     long lval;
   49:     debug_decl(atomode, SUDO_DEBUG_UTIL)
   50: 
   51:     errno = 0;
   52:     lval = strtol(cp, &ep, 8);
   53:     if (ep == cp || *ep != '\0') {
   54: 	if (errstr != NULL)
   55: 	    *errstr = N_("invalid value");
   56: 	errno = EINVAL;
   57: 	debug_return_int(0);
   58:     }
   59:     if (lval < 0 || lval > 0777) {
   60: 	if (errstr != NULL)
   61: 	    *errstr = lval < 0 ? N_("value too small") : N_("value too large");
   62: 	errno = ERANGE;
   63: 	debug_return_int(0);
   64:     }
   65:     if (errstr != NULL)
   66: 	*errstr = NULL;
   67:     debug_return_int((int)lval);
   68: }