mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-25 11:37:56 +00:00
133 lines
3.6 KiB
C
133 lines
3.6 KiB
C
/*-
|
|
* Copyright (c) 1992, 1993, 1994
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#if 0
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)fmt.c 8.4 (Berkeley) 4/15/94";
|
|
#endif
|
|
#endif
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/time.h>
|
|
#include <sys/resource.h>
|
|
|
|
#include <err.h>
|
|
#include <limits.h>
|
|
#include <stdio.h>
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <vis.h>
|
|
|
|
#include "ps.h"
|
|
|
|
static char *cmdpart(char *);
|
|
static char *shquote(char **);
|
|
|
|
static char *
|
|
shquote(char **argv)
|
|
{
|
|
long arg_max;
|
|
static size_t buf_size;
|
|
size_t len;
|
|
char **p, *dst, *src;
|
|
static char *buf = NULL;
|
|
|
|
if (buf == NULL) {
|
|
if ((arg_max = sysconf(_SC_ARG_MAX)) == -1)
|
|
errx(1, "sysconf _SC_ARG_MAX failed");
|
|
if (arg_max >= LONG_MAX / 4 || arg_max >= (long)(SIZE_MAX / 4))
|
|
errx(1, "sysconf _SC_ARG_MAX preposterously large");
|
|
buf_size = 4 * arg_max + 1;
|
|
if ((buf = malloc(buf_size)) == NULL)
|
|
errx(1, "malloc failed");
|
|
}
|
|
|
|
if (*argv == NULL) {
|
|
buf[0] = '\0';
|
|
return (buf);
|
|
}
|
|
dst = buf;
|
|
for (p = argv; (src = *p++) != NULL; ) {
|
|
if (*src == '\0')
|
|
continue;
|
|
len = (buf_size - 1 - (dst - buf)) / 4;
|
|
strvisx(dst, src, strlen(src) < len ? strlen(src) : len,
|
|
VIS_NL | VIS_CSTYLE);
|
|
while (*dst != '\0')
|
|
dst++;
|
|
if ((buf_size - 1 - (dst - buf)) / 4 > 0)
|
|
*dst++ = ' ';
|
|
}
|
|
/* Chop off trailing space */
|
|
if (dst != buf && dst[-1] == ' ')
|
|
dst--;
|
|
*dst = '\0';
|
|
return (buf);
|
|
}
|
|
|
|
static char *
|
|
cmdpart(char *arg0)
|
|
{
|
|
char *cp;
|
|
|
|
return ((cp = strrchr(arg0, '/')) != NULL ? cp + 1 : arg0);
|
|
}
|
|
|
|
const char *
|
|
fmt_argv(char **argv, char *cmd, size_t maxlen)
|
|
{
|
|
size_t len;
|
|
char *ap, *cp;
|
|
|
|
if (argv == NULL || argv[0] == NULL) {
|
|
if (cmd == NULL)
|
|
return ("");
|
|
ap = NULL;
|
|
len = maxlen + 3;
|
|
} else {
|
|
ap = shquote(argv);
|
|
len = strlen(ap) + maxlen + 4;
|
|
}
|
|
cp = malloc(len);
|
|
if (cp == NULL)
|
|
errx(1, "malloc failed");
|
|
if (ap == NULL)
|
|
sprintf(cp, "[%.*s]", (int)maxlen, cmd);
|
|
else if (strncmp(cmdpart(argv[0]), cmd, maxlen) != 0)
|
|
sprintf(cp, "%s (%.*s)", ap, (int)maxlen, cmd);
|
|
else
|
|
strcpy(cp, ap);
|
|
return (cp);
|
|
}
|