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