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Annotation of embedaddon/tmux/compat/setproctitle.c, revision 1.1.1.1

1.1       misho       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