1 /* 2 * Copyright (c) 2016 Nicholas Marriott <nicholas.marriott@gmail.com> 3 * 4 * Permission to use, copy, modify, and distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER 13 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 14 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #include <sys/types.h> 18 19 #include <stdarg.h> 20 #include <string.h> 21 22 #include "compat.h" 23 24 #if defined(HAVE_PRCTL) && defined(HAVE_PR_SET_NAME) 25 26 #include <sys/prctl.h> 27 28 void 29 setproctitle(const char *fmt, ...) 30 { 31 char title[16], name[16], *cp; 32 va_list ap; 33 int used; 34 35 va_start(ap, fmt); 36 vsnprintf(title, sizeof title, fmt, ap); 37 va_end(ap); 38 39 used = snprintf(name, sizeof name, "%s: %s", getprogname(), title); 40 if (used >= (int)sizeof name) { 41 cp = strrchr(name, ' '); 42 if (cp != NULL) 43 *cp = '\0'; 44 } 45 prctl(PR_SET_NAME, name); 46 } 47 #else 48 void 49 setproctitle(__unused const char *fmt, ...) 50 { 51 } 52 #endif 53