Return to setenv.c CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / tmux / compat

Annotation of embedaddon/tmux/compat/setenv.c, revision 1.1

1.1     ! misho       1: /*
        !             2:  * Copyright (c) 2010 Dagobert Michelsen
        !             3:  * Copyright (c) 2010 Nicholas Marriott <nicholas.marriott@gmail.com>
        !             4:  *
        !             5:  * Permission to use, copy, modify, and distribute this software for any
        !             6:  * purpose with or without fee is hereby granted, provided that the above
        !             7:  * copyright notice and this permission notice appear in all copies.
        !             8:  *
        !             9:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !            10:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            11:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            12:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            13:  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
        !            14:  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
        !            15:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            16:  */
        !            17: 
        !            18: #include <stdlib.h>
        !            19: #include <string.h>
        !            20: 
        !            21: #include "compat.h"
        !            22: 
        !            23: int
        !            24: setenv(const char *name, const char *value, unused int overwrite)
        !            25: {
        !            26:        char    *newval;
        !            27: 
        !            28:        xasprintf(&newval, "%s=%s", name, value);
        !            29:        return (putenv(newval));
        !            30: }
        !            31: 
        !            32: int
        !            33: unsetenv(const char *name)
        !            34: {
        !            35:        char  **envptr;
        !            36:        int     namelen;
        !            37: 
        !            38:        namelen = strlen(name);
        !            39:        for (envptr = environ; *envptr != NULL; envptr++) {
        !            40:                if (strncmp(name, *envptr, namelen) == 0 &&
        !            41:                    ((*envptr)[namelen] == '=' || (*envptr)[namelen] == '\0'))
        !            42:                        break;
        !            43:        }
        !            44:        for (; *envptr != NULL; envptr++)
        !            45:                *envptr = *(envptr + 1);
        !            46:        return (0);
        !            47: }