1 /*
2 * Copyright (c) 2012 - 2013 Tony Finch <dot@dotat.at>
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23 * SUCH DAMAGE.
24 */
25
26 #include <sys/stat.h>
27
28 #include <ctype.h>
29 #include <errno.h>
30 #include <stdarg.h>
31 #include <stdbool.h>
32 #include <stdio.h>
33 #include <stdlib.h>
34 #include <string.h>
35 #include <unistd.h>
36
37 /* Avoid err.h since this are non-standard BSD extensions */
38 #define vwarnx(fmt, args) ({ fprintf(stderr, "unifdef: "); vfprintf(stderr, fmt, args); fprintf(stderr, "\n"); })
39 #define warnx(fmt, args...) fprintf(stderr, "unifdef: " fmt "\n", ## args)
40 #define warn(fmt, args...) warnx(fmt ": %s", ## args, strerror(errno))
41 #define errx(exit_code, fmt, args...) ({ warnx(fmt, ## args); exit(exit_code); })
42 #define err(exit_code, fmt, args...) errx(exit_code, fmt ": %s", ## args, strerror(errno))
43
44 /* portability stubs */
45
46 #define fbinmode(fp) (fp)
47
48 #define replace(old,new) rename(old,new)
49
50 static FILE *
mktempmode(char * tmp,int mode)51 mktempmode(char *tmp, int mode)
52 {
53 int fd = mkstemp(tmp);
54 if (fd < 0) return (NULL);
55 fchmod(fd, mode & (S_IRWXU|S_IRWXG|S_IRWXO));
56 return (fdopen(fd, "wb"));
57 }
58