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);
+}