mirror of
https://github.com/buserror/mii_emu.git
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73 lines
1.6 KiB
C
73 lines
1.6 KiB
C
/*
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* mish_cmd_env.c
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*
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* Copyright (C) 2020 Michel Pollet <buserror@gmail.com>
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "mish.h"
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extern char ** environ;
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static void
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_mish_cmd_env(
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void * param,
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int argc,
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const char * argv[])
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{
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if (argc < 2) {
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for (int i = 0; environ[i]; i++)
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if (strncmp(environ[i], "LS_COLORS=", 10))
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printf("%s\n", environ[i]);
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return;
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}
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for (int i = 0; environ[i]; i++)
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for (int ei = 1; ei < argc; ei++) {
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int l = strlen(argv[ei]);
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if (!strncmp(environ[i], argv[ei], l))
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printf("%s\n", environ[i]);
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}
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}
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MISH_CMD_NAMES(env, "env");
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MISH_CMD_HELP(env,
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"[names ...] display all environment, or variables",
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"Apart from LS_COLORS: that is just spam.",
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"If you specify names it'll just show the ones whose name",
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"start with that prefix");
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MISH_CMD_REGISTER(env, _mish_cmd_env);
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static void
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_mish_cmd_setenv(
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void * param,
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int argc,
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const char * argv[])
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{
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for (int ei = 1; ei < argc; ei++) {
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char *equal = strchr(argv[ei], '=');
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if (!equal) {
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printf("mish: setenv: '%s' requires an '='\n", argv[ei]);
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return;
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}
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*equal++ = 0;
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printf("mish: %s%s%s%s\n", *equal ? "" : "unset ",
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argv[ei], *equal ? " = ": "",
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*equal ? equal : "");
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if (!*equal)
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unsetenv(argv[ei]);
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else
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setenv(argv[ei], equal, 1);
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}
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}
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MISH_CMD_NAMES(setenv, "setenv");
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MISH_CMD_HELP(setenv,
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"[<name>=<value>...] set/clear environment variable(s)",
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"Set <name> to <value> .. if <value> is omitted, clears it.",
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"The '=' is required, even when clearing.");
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MISH_CMD_REGISTER(setenv, _mish_cmd_setenv);
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