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annotate toys/env.c @ 562:4d802d438983

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Match uint64_t with PRIu64 to avoid warnings on 64 bit builds.
author Rob Landley <rob@landley.net>
date Sat, 14 Apr 2012 21:27:00 -0500
parents 45c10e86be43
children
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1 /* vi: set sw=4 ts=4:
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2 *
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3 * env.c - Set the environment for command invocation.
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4 *
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5 * Copyright 2012 Tryn Mirell <tryn@mirell.org>
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6 * env.c
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7
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8 USE_ENV(NEWTOY(env, "^i", TOYFLAG_USR|TOYFLAG_BIN))
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9
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10 config ENV
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11 bool "env"
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eda61bcf575a Basename and env are usable, default them to y.
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12 default y
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13 help
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14 usage: env [-i] [NAME=VALUE...] [command [option...]]
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16 Set the environment for command invocation.
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17
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18 -i Clear existing environment.
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19 */
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20
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21 #include "toys.h"
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22
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23 extern char **environ;
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24
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25 void env_main(void)
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26 {
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27 char **ev;
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28 char **command = NULL;
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29 char *del = "=";
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30
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31 if (toys.optflags & 1) clearenv();
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32
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33 for (ev = toys.optargs; *ev != NULL; ev++) {
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34 char *env, *val = NULL;
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35
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36 env = strtok(*ev, del);
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37
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38 if (env) val = strtok(NULL, del);
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39
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40 if (val) setenv(env, val, 1);
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41 else {
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42 command = ev;
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43 break;
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44 }
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45 }
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46
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47 if (!command) {
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48 char **ep;
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49 for (ep = environ; *ep; ep++) xputs(*ep);
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50 return;
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51 } else xexec(command);
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52 }