new ps, to match libkvm

bin/ps/fmt.c

@@ -0,0 +1,115 @@
+/*-
+ * 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)fmt.c	8.4 (Berkeley) 4/15/94";
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <vis.h>
+#include "ps.h"
+
+static char *cmdpart __P((char *));
+static char *shquote __P((char **));
+
+/*
+ * XXX
+ * This is a stub until marc does the real one.
+ */
+static char *
+shquote(argv)
+	char **argv;
+{
+	char **p, *dst, *src;
+	static char buf[4096];		/* XXX */
+
+	if (*argv == 0) {
+		buf[0] = 0;
+		return (buf);
+	}
+	dst = buf;
+	for (p = argv; (src = *p++) != 0; ) {
+		if (*src == 0)
+			continue;
+		strvis(dst, src, VIS_NL | VIS_CSTYLE);
+		while (*dst)
+			dst++;
+		*dst++ = ' ';
+	}
+	*dst = '\0';
+	return (buf);
+}
+
+static char *
+cmdpart(arg0)
+	char *arg0;
+{
+	char *cp;
+
+	return ((cp = strrchr(arg0, '/')) != NULL ? cp + 1 : arg0);
+}
+
+char *
+fmt_argv(argv, cmd, maxlen)
+	char **argv;
+	char *cmd;
+	int maxlen;
+{
+	int len;
+	char *ap, *cp;
+
+	if (argv == 0 || argv[0] == 0) {
+		if (cmd == NULL)
+			return ("");
+		ap = NULL;
+		len = maxlen + 3;
+	} else {
+		ap = shquote(argv);
+		len = strlen(ap) + maxlen + 4;
+	}
+	if ((cp = malloc(len)) == NULL)
+		return (NULL);
+	if (ap == NULL)
+		sprintf(cp, "(%.*s)", maxlen, cmd);
+	else if (strncmp(cmdpart(argv[0]), cmd, maxlen) != 0)
+		sprintf(cp, "%s (%.*s)", ap, maxlen, cmd);
+	else
+		(void) strcpy(cp, ap);
+	return (cp);
+}