GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libc/gen/setproctitle.c Lines: 0 24 0.0 %
Date: 2017-11-13 Branches: 0 12 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: setproctitle.c,v 1.15 2016/03/13 18:34:20 guenther Exp $ */
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/*
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 * Copyright (c) 1994, 1995 Christopher G. Demetriou
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. All advertising materials mentioning features or use of this software
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 *    must display the following acknowledgement:
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 *      This product includes software developed by Christopher G. Demetriou
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 *	for the NetBSD Project.
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 * 4. The name of the author may not be used to endorse or promote products
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 *    derived from this software without specific prior written permission
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#include <sys/types.h>
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#include <sys/exec.h>
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#include <sys/sysctl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#define	MAX_PROCTITLE	2048
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void
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setproctitle(const char *fmt, ...)
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{
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	static struct ps_strings *ps;
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	va_list ap;
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	static char buf[MAX_PROCTITLE], *bufp = buf;
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	int used;
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	va_start(ap, fmt);
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	if (fmt != NULL) {
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		used = snprintf(buf, MAX_PROCTITLE, "%s: ", __progname);
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		if (used >= MAX_PROCTITLE)
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			used = MAX_PROCTITLE - 1;
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		else if (used < 0)
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			used = 0;
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		(void)vsnprintf(buf + used, MAX_PROCTITLE - used, fmt, ap);
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	} else
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		(void)snprintf(buf, MAX_PROCTITLE, "%s", __progname);
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	va_end(ap);
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	if (ps == NULL) {
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		struct _ps_strings _ps;
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		int mib[2];
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		size_t len;
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		mib[0] = CTL_VM;
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		mib[1] = VM_PSSTRINGS;
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		len = sizeof(_ps);
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		if (sysctl(mib, 2, &_ps, &len, NULL, 0) != 0)
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			return;
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		ps = (struct ps_strings *)_ps.val;
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	}
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	ps->ps_nargvstr = 1;
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	ps->ps_argvstr = &bufp;
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}