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/* $OpenBSD: parse_tame.c,v 1.1 2015/08/24 09:21:10 semarie Exp $ */
/*
* Copyright (c) 2015 Sebastien Marie <semarie@openbsd.org>
*
* 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.
*/
#include <sys/tame.h>
#include <err.h>
#include <stdlib.h>
#include <string.h>
#define tameflag(x) { #x, x }
/* list of defined TAME_ flags */
struct {
char *name;
int flag;
} flags_list[] = {
tameflag(TAME_MALLOC),
tameflag(TAME_RW),
tameflag(TAME_STDIO),
tameflag(TAME_RPATH),
tameflag(TAME_WPATH),
tameflag(TAME_TMPPATH),
tameflag(TAME_INET),
tameflag(TAME_UNIX),
tameflag(TAME_CMSG),
tameflag(TAME_DNS),
tameflag(TAME_IOCTL),
tameflag(TAME_GETPW),
tameflag(TAME_PROC),
tameflag(TAME_CPATH),
tameflag(TAME_ABORT),
{ NULL, 0 },
};
int
parse_flags(char *str)
{
int flags = 0;
char *current = str;
char *next = str;
int i;
if (str == NULL || *str == '\0')
return (0);
while (next) {
/* get only the current word */
next = strchr(current, ',');
if (next == '\0')
next = NULL;
else
*next = '\0';
/* search word in flags_list */
for (i = 0; (flags_list[i].name != NULL)
&& (strcmp(current, flags_list[i].name) != 0); i++);
if (flags_list[i].name != NULL) {
if (flags & flags_list[i].flag)
errx(1, "parse_flags: flag already setted: %s",
flags_list[i].name);
else
flags |= flags_list[i].flag;
} else
errx(1, "parse_flags: unknown flag: %s", current);
/* advance to next word */
if (next)
current = next + 1;
}
return (flags);
}
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