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Annotation of src/usr.bin/file/magic-common.c, Revision 1.1

1.1     ! nicm        1: /* $OpenBSD$ */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 2015 Nicholas Marriott <nicm@openbsd.org>
        !             5:  *
        !             6:  * Permission to use, copy, modify, and distribute this software for any
        !             7:  * purpose with or without fee is hereby granted, provided that the above
        !             8:  * copyright notice and this permission notice appear in all copies.
        !             9:  *
        !            10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !            11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            14:  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
        !            15:  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
        !            16:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            17:  */
        !            18:
        !            19: #include <sys/types.h>
        !            20:
        !            21: #include <ctype.h>
        !            22: #include <errno.h>
        !            23: #include <limits.h>
        !            24: #include <stdarg.h>
        !            25: #include <stdio.h>
        !            26: #include <stdlib.h>
        !            27: #include <string.h>
        !            28:
        !            29: #include "magic.h"
        !            30:
        !            31: char *
        !            32: magic_strtoull(const char *s, uint64_t *u)
        !            33: {
        !            34:        char    *endptr;
        !            35:
        !            36:        if (*s == '-')
        !            37:                return (NULL);
        !            38:        errno = 0;
        !            39:        *u = strtoull(s, &endptr, 0);
        !            40:        if (*s == '\0')
        !            41:                return (NULL);
        !            42:        if (errno == ERANGE && *u == ULLONG_MAX)
        !            43:                return (NULL);
        !            44:        if (*endptr == 'L')
        !            45:                endptr++;
        !            46:        return (endptr);
        !            47: }
        !            48:
        !            49: char *
        !            50: magic_strtoll(const char *s, int64_t *i)
        !            51: {
        !            52:        char    *endptr;
        !            53:
        !            54:        errno = 0;
        !            55:        *i = strtoll(s, &endptr, 0);
        !            56:        if (*s == '\0')
        !            57:                return (NULL);
        !            58:        if (errno == ERANGE && *i == LLONG_MAX)
        !            59:                return (NULL);
        !            60:        if (*endptr == 'L')
        !            61:                endptr++;
        !            62:        return (endptr);
        !            63: }
        !            64:
        !            65: void
        !            66: magic_warn(struct magic_line *ml, const char *fmt, ...)
        !            67: {
        !            68:        va_list  ap;
        !            69:        char    *msg;
        !            70:
        !            71:        if (!ml->root->warnings)
        !            72:                return;
        !            73:
        !            74:        va_start(ap, fmt);
        !            75:        if (vasprintf(&msg, fmt, ap) == -1) {
        !            76:                va_end(ap);
        !            77:                return;
        !            78:        }
        !            79:        va_end(ap);
        !            80:
        !            81:        fprintf(stderr, "%s:%u: %s\n", ml->root->path, ml->line, msg);
        !            82:        free(msg);
        !            83: }