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git.saurik.com Git - apple/shell_cmds.git/blob - w/fmt.c
2 * Copyright (c) 1992, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #include <sys/cdefs.h>
34 static char sccsid
[] = "@(#)fmt.c 8.4 (Berkeley) 4/15/94";
38 #include <sys/types.h>
40 #include <sys/resource.h>
51 static char *cmdpart(char *);
52 static char *shquote(char **);
56 * This is a stub until marc does the real one.
61 static long arg_max
= -1;
64 static char *buf
= NULL
;
67 if ((arg_max
= sysconf(_SC_ARG_MAX
)) == -1)
68 errx(1, "sysconf _SC_ARG_MAX failed");
69 if ((buf
= malloc((u_int
)(4 * arg_max
) + 1)) == NULL
)
70 errx(1, "malloc failed");
78 for (p
= argv
; (src
= *p
++) != 0; ) {
81 len
= (size_t)(4 * arg_max
- (dst
- buf
)) / 4;
82 strvisx(dst
, src
, strlen(src
) < len
? strlen(src
) : len
,
86 if ((4 * arg_max
- (dst
- buf
)) / 4 > 0)
89 /* Chop off trailing space */
90 if (dst
!= buf
&& dst
[-1] == ' ')
101 return ((cp
= strrchr(arg0
, '/')) != NULL
? cp
+ 1 : arg0
);
105 fmt_argv(char **argv
, char *cmd
, size_t maxlen
)
110 if (argv
== NULL
|| argv
[0] == NULL
) {
117 len
= strlen(ap
) + maxlen
+ 4;
123 sprintf(cp
, " (%.*s)", (int)maxlen
, cmd
);
124 else if (strncmp(cmdpart(argv
[0]), cmd
, maxlen
) != 0)
125 sprintf(cp
, "%s (%.*s)", ap
, (int)maxlen
, cmd
);
127 (void) strcpy(cp
, ap
);