diff options
author | 2021-05-09 14:20:58 -0400 | |
---|---|---|
committer | 2021-05-09 14:20:58 -0400 | |
commit | 5fd83771641d15c418f747bd343ba6738d3875f7 (patch) | |
tree | 5abf0f78f680d9837dbd93d4d4c3933bb7509599 /shell_cmds/w/fmt.c | |
download | apple_cmds-5fd83771641d15c418f747bd343ba6738d3875f7.tar.gz apple_cmds-5fd83771641d15c418f747bd343ba6738d3875f7.tar.zst apple_cmds-5fd83771641d15c418f747bd343ba6738d3875f7.zip |
Import macOS userland
adv_cmds-176
basic_cmds-55
bootstrap_cmds-116.100.1
developer_cmds-66
diskdev_cmds-667.40.1
doc_cmds-53.60.1
file_cmds-321.40.3
mail_cmds-35
misc_cmds-34
network_cmds-606.40.1
patch_cmds-17
remote_cmds-63
shell_cmds-216.60.1
system_cmds-880.60.2
text_cmds-106
Diffstat (limited to 'shell_cmds/w/fmt.c')
-rw-r--r-- | shell_cmds/w/fmt.c | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/shell_cmds/w/fmt.c b/shell_cmds/w/fmt.c new file mode 100644 index 0000000..31a6e50 --- /dev/null +++ b/shell_cmds/w/fmt.c @@ -0,0 +1,129 @@ +/*- + * 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. + * 3. 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. + */ + +#include <sys/cdefs.h> + +#if 0 +#ifndef lint +static char sccsid[] = "@(#)fmt.c 8.4 (Berkeley) 4/15/94"; +#endif +#endif + +#include <sys/types.h> +#include <sys/time.h> +#include <sys/resource.h> + +#include <err.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <vis.h> + +//#include "ps.h" + +static char *cmdpart(char *); +static char *shquote(char **); + +/* + * XXX + * This is a stub until marc does the real one. + */ +static char * +shquote(char **argv) +{ + static long arg_max = -1; + 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 ((buf = malloc((u_int)(4 * arg_max) + 1)) == NULL) + errx(1, "malloc failed"); + } + + if (*argv == 0) { + buf[0] = 0; + return (buf); + } + dst = buf; + for (p = argv; (src = *p++) != 0; ) { + if (*src == 0) + continue; + len = (size_t)(4 * arg_max - (dst - buf)) / 4; + strvisx(dst, src, strlen(src) < len ? strlen(src) : len, + VIS_NL | VIS_CSTYLE); + while (*dst) + dst++; + if ((4 * arg_max - (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) + return (NULL); + 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 + (void) strcpy(cp, ap); + return (cp); +} |