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/* vi: set sw=4 ts=4:
*
* printenv.c - Print environment variables.
*
* Copyright 2012 Georgi Chorbadzhiyski <georgi@unixsol.org>
*
USE_PRINTENV(NEWTOY(printenv, "0", TOYFLAG_USR|TOYFLAG_BIN))
config PRINTENV
bool "printenv"
default y
help
usage: printenv [-0] [env_var...]
Print enviroment variables.
-0 Use \0 as environment delimiter instead of \n
*/
#include "toys.h"
extern char **environ;
void printenv_main(void)
{
char **env;
char delim = '\n';
if (toys.optflags)
delim = '\0';
if (!toys.optargs[0]) {
for (env = environ; *env; env++)
xprintf("%s%c", *env, delim);
} else {
char **var = toys.optargs;
for (var = toys.optargs; *var; var++) {
int len = strlen(*var);
for (env = environ; *env; env++) {
if (strncmp(*env, *var, len) == 0)
xprintf("%s%c", *env + len + 1, delim);
}
}
}
}
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