diff options
Diffstat (limited to 'src/command.h')
| -rw-r--r-- | src/command.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/command.h b/src/command.h index 469422c..7709292 100644 --- a/src/command.h +++ b/src/command.h @@ -3,6 +3,11 @@ #include <stddef.h> +/* for CMD_ macros */ +#include <stdlib.h> +#include <string.h> +#include <errno.h> + enum { CMD_NODE_TYPE_NULL, CMD_NODE_TYPE_LITERAL, @@ -32,6 +37,29 @@ enum { CMD_PARSE_EUSAGE /* function was called with NULL arguments */ }; +#define CMD_FATAL_(_op) do { \ + _op; \ + exit(EXIT_FAILURE); \ +} while (0) + +#define CMD_MSG(_l, _s, ...) fprintf(stderr, _l ": " _s "\n", __VA_ARGS__) +#define CMD_MSG0(_l, _s) fputs(_l ": " _s "\n", stderr); + +#define CMD_FATAL(_s, ...) CMD_FATAL_(CMD_MSG("fatal", _s, __VA_ARGS__)) +#define CMD_FATAL0(_s) CMD_FATAL_(CMD_MSG0("fatal", _s)) + +#define CMD_ERROR(_s, ...) CMD_MSG("error", _s, __VA_ARGS__) +#define CMD_ERROR0(_s) CMD_MSG0("error", _s) + +#define CMD_WARN(_s, ...) CMD_MSG("warn", _s, __VA_ARGS__) +#define CMD_WARN0(_s) CMD_MSG0("warn", _s) + +#define CMD_MSG_UNKNOWN_ARGUMENT "Unknown argument '%s'." +#define CMD_MSG_REQ_ARG_UNSPECIFIED "Required argument '%s' not specified." +#define CMD_MSG_INVALID_UUID "Invalid UUID '%s'." + +#define CMD_MSG_ALLOCATION_FAILED "Allocation failed." + struct l2_command_node; struct l2_context_node { @@ -74,4 +102,18 @@ struct l2_parseinfo { unsigned l2_cmd_parse_command(char **argv, struct l2_parseinfo *parseinfo); void l2_cmd_free_ctx(struct l2_context_node *ctx); +/* DESCRIPTION: + * This function is for unpacking a bunch of arguments from a parsed command into + * string variables. + * + * HOW TO USE: + * Pass your command context followed by your arguments (const char *name, char **pvalue). + * Prefix the name with "#" if it is optional. + * + * This function will exit if a required value was not present. + * + * Example: l2_cmd_collect_args(ctx, 2, "name", &name, "#location", &path); + */ +void l2_cmd_collect_args(struct l2_context_node *ctx, unsigned argc, ...); + #endif /* include guard */ |