diff options
Diffstat (limited to 'funcs/func_env.c')
-rwxr-xr-x | funcs/func_env.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/funcs/func_env.c b/funcs/func_env.c new file mode 100755 index 000000000..fd9c68621 --- /dev/null +++ b/funcs/func_env.c @@ -0,0 +1,56 @@ +/* + * Asterisk -- A telephony toolkit for Linux. + * + * MD5 digest related dialplan functions + * + * Copyright (C) 2005, Digium, Inc. + * + * This program is free software, distributed under the terms of + * the GNU General Public License + */ + +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> + +#include "asterisk/channel.h" +#include "asterisk/pbx.h" +#include "asterisk/logger.h" +#include "asterisk/utils.h" +#include "asterisk/app.h" + +static char *builtin_function_env_read(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len) +{ + char *ret = ""; + + if (data) { + ret = getenv(data); + if (!ret) + ret = ""; + } + ast_copy_string(buf, ret, len); + + return buf; +} + +static void builtin_function_env_write(struct ast_channel *chan, char *cmd, char *data, const char *value) +{ + if (data && !ast_strlen_zero(data)) { + if (value && !ast_strlen_zero(value)) { + setenv(data, value, 1); + } else { + unsetenv(data); + } + } +} + +#ifndef BUILTIN_FUNC +static +#endif +struct ast_custom_function env_function = { + .name = "ENV", + .synopsis = "Gets or sets the environment variable specified", + .syntax = "ENV(<envname>)", + .read = builtin_function_env_read, + .write = builtin_function_env_write, +}; |