2 * Copyright (c) 2002 Juli Mallett. All rights reserved.
3 * Copyright (c) 1988, 1989, 1990, 1993
4 * The Regents of the University of California. All rights reserved.
5 * Copyright (c) 1989 by Berkeley Softworks
8 * This code is derived from software contributed to Berkeley by
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the University of
22 * California, Berkeley and its contributors.
23 * 4. Neither the name of the University nor the names of its contributors
24 * may be used to endorse or promote products derived from this software
25 * without specific prior written permission.
27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 * $FreeBSD: src/usr.bin/make/util.c,v 1.16 2005/02/04 13:23:39 harti Exp $
40 * $DragonFly: src/usr.bin/make/util.c,v 1.25 2006/07/27 00:41:10 corecode Exp $
45 * General utilitarian routines for make(1).
48 #include <sys/types.h>
65 * Print a debugging message given its format.
71 * The message is printed.
75 Debug(const char *fmt, ...)
80 vfprintf(stderr, fmt, ap);
86 * Print a debugging message given its format and append the current
87 * errno description. Terminate with a newline.
91 DebugM(const char *fmt, ...)
97 vfprintf(stderr, fmt, ap);
98 fprintf(stderr, ": %s\n", strerror(e));
105 * Print an error message given its format.
111 * The message is printed.
115 Error(const char *fmt, ...)
120 vfprintf(stderr, fmt, ap);
122 fprintf(stderr, "\n");
128 * Produce a Fatal error message. If jobs are running, waits for them
139 Fatal(const char *fmt, ...)
147 vfprintf(stderr, fmt, ap);
149 fprintf(stderr, "\n");
154 exit(2); /* Not 1 so -q can distinguish error */
159 * Major exception once jobs are being created. Kills all jobs, prints
160 * a message and exits.
166 * All children are killed indiscriminately and the program Lib_Exits
170 Punt(const char *fmt, ...)
175 fprintf(stderr, "make: ");
176 vfprintf(stderr, fmt, ap);
178 fprintf(stderr, "\n");
186 * Exit without giving a message.
201 exit(2); /* Not 1, so -q can distinguish error */
206 * Called when aborting due to errors in child shell to signal
207 * abnormal exit, with the number of errors encountered in Make_Make.
219 Fatal("%d error%s", errors, errors == 1 ? "" : "s");
224 * malloc, but die on error.
231 if ((p = malloc(size)) == NULL)
232 err(2, "malloc(%zd)", size);
238 * strdup, but die on error.
241 estrdup(const char *str)
245 if ((p = strdup(str)) == NULL)
246 err(2, "strdup(%s)", str);
252 * realloc, but die on error.
255 erealloc(void *ptr, size_t size)
259 if ((p = realloc(ptr, size)) == NULL)
260 err(2, "realloc(%zd)", size);
266 * Remove a file carefully, avoiding directories.
269 eunlink(const char *file)
273 if (lstat(file, &st) == -1)
276 if (S_ISDIR(st.st_mode)) {
280 return (unlink(file));
284 * Convert a flag word to a printable thing and print it
287 print_flags(FILE *fp, const struct flag2str *tab, u_int flags, int par)
293 while (tab->str != NULL) {
294 if (flags & tab->flag) {
296 fprintf(fp, par ? "|" : " ");
298 fprintf(fp, "%s", tab->str);
307 * Create a fifo file with a uniq filename, and returns a file
308 * descriptor to that fifo.
311 mkfifotemp(char *template)
316 const char padchar[] =
317 "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
319 if (template[0] == '\0') {
320 errno = EINVAL; /* bad input string */
324 /* Find end of template string. */
325 pathend = strchr(template, '\0');
329 * Starting from the end of the template replace spaces with 'X' in
330 * them with random characters until there are no more 'X'.
332 while (ptr >= template && *ptr == 'X') {
333 uint32_t rand_num = arc4random() % (sizeof(padchar) - 1);
334 *ptr-- = padchar[rand_num];
338 /* Check the target directory. */
339 for (; ptr > template; --ptr) {
344 if (stat(template, &sbuf) != 0)
347 if (!S_ISDIR(sbuf.st_mode)) {
357 if (mkfifo(template, 0600) == 0) {
360 if ((fd = open(template, O_RDWR, 0600)) < 0) {
367 if (errno != EEXIST) {
373 * If we have a collision, cycle through the space of
376 for (ptr = start;;) {
379 if (*ptr == '\0' || ptr == pathend)
382 pad = strchr(padchar, *ptr);
383 if (pad == NULL || *++pad == '\0') {