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/* $OpenBSD: magic-common.c,v 1.3 2015/08/11 22:29:25 nicm Exp $ */
/*
* Copyright (c) 2015 Nicholas Marriott <nicm@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 MIND, 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/types.h>
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "magic.h"
char *
magic_strtoull(const char *s, uint64_t *u)
{
char *endptr;
if (*s == '-' || *s == '\0')
return (NULL);
errno = 0;
*u = strtoull(s, &endptr, 0);
if (endptr == s)
*u = strtoull(s, &endptr, 16);
if (errno == ERANGE && *u == ULLONG_MAX)
return (NULL);
if (*endptr == 'L')
endptr++;
return (endptr);
}
char *
magic_strtoll(const char *s, int64_t *i)
{
char *endptr;
if (*s == '\0')
return (NULL);
errno = 0;
*i = strtoll(s, &endptr, 0);
if (endptr == s)
*i = strtoll(s, &endptr, 16);
if (errno == ERANGE && *i == LLONG_MAX)
return (NULL);
if (*endptr == 'L')
endptr++;
return (endptr);
}
void
magic_vwarnm(struct magic *m, u_int line, const char *fmt, va_list ap)
{
char *msg;
if (!m->warnings)
return;
if (vasprintf(&msg, fmt, ap) == -1)
return;
fprintf(stderr, "%s:%u: %s\n", m->path, line, msg);
free(msg);
}
void
magic_warnm(struct magic *m, u_int line, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
magic_vwarnm (m, line, fmt, ap);
va_end(ap);
}
void
magic_warn(struct magic_line *ml, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
magic_vwarnm (ml->root, ml->line, fmt, ap);
va_end(ap);
}
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