2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1992, 1993, 1994
5 * The Regents of the University of California. All rights reserved.
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8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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34 static char sccsid[] = "@(#)fmt.c 8.4 (Berkeley) 4/15/94";
38 #include <sys/cdefs.h>
39 #include <sys/types.h>
41 #include <sys/resource.h>
54 static char *cmdpart(char *);
55 static char *shquote(char **);
61 static size_t buf_size;
64 static char *buf = NULL;
67 if ((arg_max = sysconf(_SC_ARG_MAX)) == -1)
68 errx(1, "sysconf _SC_ARG_MAX failed");
69 if (arg_max >= LONG_MAX / 4 || arg_max >= (long)(SIZE_MAX / 4))
70 errx(1, "sysconf _SC_ARG_MAX preposterously large");
71 buf_size = 4 * arg_max + 1;
72 if ((buf = malloc(buf_size)) == NULL)
73 errx(1, "malloc failed");
81 for (p = argv; (src = *p++) != NULL; ) {
84 len = (buf_size - 1 - (dst - buf)) / 4;
85 strvisx(dst, src, strlen(src) < len ? strlen(src) : len,
89 if ((buf_size - 1 - (dst - buf)) / 4 > 0)
92 /* Chop off trailing space */
93 if (dst != buf && dst[-1] == ' ')
104 return ((cp = strrchr(arg0, '/')) != NULL ? cp + 1 : arg0);
108 fmt_argv(char **argv, char *cmd, char *thread, size_t maxlen)
113 if (argv == NULL || argv[0] == NULL) {
120 len = strlen(ap) + maxlen + 4;
124 errx(1, "malloc failed");
126 if (thread != NULL) {
127 asprintf(&ap, "%s/%s", cmd, thread);
128 sprintf(cp, "[%.*s]", (int)maxlen, ap);
131 sprintf(cp, "[%.*s]", (int)maxlen, cmd);
132 } else if (strncmp(cmdpart(argv[0]), cmd, maxlen) != 0)
133 sprintf(cp, "%s (%.*s)", ap, (int)maxlen, cmd);