1 /* 2 * Copyright (c) 1994 Christopher G. Demetriou 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by Christopher G. Demetriou. 16 * 4. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #if defined(LIBC_SCCS) && !defined(lint) 32 static char *rcsid = "$Id: setproctitle.c,v 1.2 1994/05/24 08:17:37 deraadt Exp $"; 33 #endif /* LIBC_SCCS and not lint */ 34 35 #include <sys/param.h> 36 #include <sys/types.h> 37 #include <sys/exec.h> 38 #include <vm/vm.h> 39 40 #include <stdio.h> 41 #include <stdlib.h> 42 #include <string.h> 43 44 #ifdef __STDC__ 45 #include <stdarg.h> 46 #else 47 #include <varargs.h> 48 #endif 49 50 #define MAX_PROCTITLE 2048 51 52 extern char *__progname; /* Program name, from crt0. */ 53 54 void 55 #if __STDC__ 56 setproctitle(const char *fmt, ...) 57 #else 58 setproctitle(fmt, va_alist) 59 const char *fmt; 60 va_dcl 61 #endif 62 { 63 va_list ap; 64 static char buf[MAX_PROCTITLE]; 65 int used; 66 67 #if __STDC__ 68 va_start(ap, fmt); 69 #else 70 va_start(ap); 71 #endif 72 if (fmt != NULL) { 73 used = snprintf(buf, MAX_PROCTITLE, "%s: ", __progname); 74 (void)vsnprintf(buf + used, MAX_PROCTITLE - used, fmt, ap); 75 } else 76 (void)snprintf(buf, MAX_PROCTITLE, "%s", __progname); 77 va_end(ap); 78 79 PS_STRINGS->ps_nargvstr = 1; 80 PS_STRINGS->ps_argvstr = buf; 81 } 82