diff options
Diffstat (limited to 'lib/util/strtomode.c')
-rw-r--r-- | lib/util/strtomode.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/lib/util/strtomode.c b/lib/util/strtomode.c new file mode 100644 index 0000000..5a1ec94 --- /dev/null +++ b/lib/util/strtomode.c @@ -0,0 +1,67 @@ +/* + * Copyright (c) 2013-2015 Todd C. Miller <Todd.Miller@sudo.ws> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* + * This is an open source non-commercial project. Dear PVS-Studio, please check it. + * PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com + */ + +#include <config.h> + +#include <sys/types.h> +#include <sys/stat.h> + +#include <stdio.h> +#include <stdlib.h> +#include <errno.h> + +#define DEFAULT_TEXT_DOMAIN "sudo" +#include "sudo_gettext.h" /* must be included before sudo_compat.h */ + +#include "sudo_compat.h" +#include "sudo_debug.h" +#include "sudo_util.h" + +/* + * Parse an octal file mode in the range [0, 0777]. + * On success, returns the parsed mode and clears errstr. + * On error, returns 0 and sets errstr. + */ +int +sudo_strtomode_v1(const char *cp, const char **errstr) +{ + char *ep; + long lval; + debug_decl(sudo_strtomode, SUDO_DEBUG_UTIL) + + errno = 0; + lval = strtol(cp, &ep, 8); + if (ep == cp || *ep != '\0') { + if (errstr != NULL) + *errstr = N_("invalid value"); + errno = EINVAL; + debug_return_int(0); + } + if (lval < 0 || lval > ACCESSPERMS) { + if (errstr != NULL) + *errstr = lval < 0 ? N_("value too small") : N_("value too large"); + errno = ERANGE; + debug_return_int(0); + } + if (errstr != NULL) + *errstr = NULL; + debug_return_int((int)lval); +} |