This commit implements 'device' sub command to operate the target device. This sub command consists of several operations and parser for the operation will be implemented in future commits.
Signed-off-by: Takashi Sakamoto o-takashi@sakamocchi.jp --- efw-downloader/src/main.c | 4 ++ efw-downloader/src/meson.build | 2 + efw-downloader/src/subcmd-device.c | 77 ++++++++++++++++++++++++++++++ efw-downloader/src/subcmds.h | 8 ++++ 4 files changed, 91 insertions(+) create mode 100644 efw-downloader/src/subcmd-device.c create mode 100644 efw-downloader/src/subcmds.h
diff --git a/efw-downloader/src/main.c b/efw-downloader/src/main.c index 499e67e..e150cc8 100644 --- a/efw-downloader/src/main.c +++ b/efw-downloader/src/main.c @@ -4,6 +4,8 @@ #include <stdlib.h> #include <string.h>
+#include "subcmds.h" + static void print_help() { printf("Usage\n" @@ -11,6 +13,7 @@ static void print_help() "\n" "where:\n" " SUBCOMMAND:\n" + " device: operate for device for unit on IEEE 1394 bus\n" " help: print help\n" " OPTIONS: optional arguments dependent on the subcommand\n"); } @@ -22,6 +25,7 @@ int main(int argc, char **argv) size_t size; int (*op)(int argc, char **argv); } *entry, entries[] = { + { "device", sizeof("device"), subcmd_device }, }; const char *subcmd; int i; diff --git a/efw-downloader/src/meson.build b/efw-downloader/src/meson.build index ca894d9..07a6182 100644 --- a/efw-downloader/src/meson.build +++ b/efw-downloader/src/meson.build @@ -14,10 +14,12 @@ hinawa = dependency('hinawa', sources = [ 'main.c', 'efw-proto.c', + 'subcmd-device.c', ]
headers = [ 'efw-proto.h', + 'subcmds.h', ]
gnome = import('gnome') diff --git a/efw-downloader/src/subcmd-device.c b/efw-downloader/src/subcmd-device.c new file mode 100644 index 0000000..739944e --- /dev/null +++ b/efw-downloader/src/subcmd-device.c @@ -0,0 +1,77 @@ +// SPDX-License-Identifier: GPL-3.0-or-later +// Copyright (c) 2020 Takashi Sakamoto +#include <stdio.h> +#include <stdlib.h> +#include <errno.h> +#include <assert.h> + +#include "efw-proto.h" + +static int print_help() +{ + printf("Usage\n" + " efw-downloader device CDEV OPERATION ARGUMENTS\n" + "\n" + "where:\n" + " CDEV: The firewire character device corresponding to the node for transaction\n" + " OPERATION:\n" + " help: print this help message\n" + " ARGUMENTS:\n" + " depending on OPERATION\n" + "\n"); + return EXIT_FAILURE; +} + +static int parse_args(int argc, char **argv, const char **path, const char **op_name) +{ + if (argc < 2) + return -EINVAL; + assert(strncmp(argv[1], "device", sizeof("device")) == 0); + + if (argc < 3) + return -EINVAL; + *path = argv[2]; + + if (argc < 4) + return -EINVAL; + *op_name = argv[3]; + + return 0; +} + +int subcmd_device(int argc, char **argv) +{ + struct { + const char *name; + size_t size; + void (*op)(int argc, char **argv, EfwProto *proto, GError **error); + } *entry, entries[] = { + }; + GError *error = NULL; + const char *path; + const char *op_name; + EfwProto *proto; + int err; + int i; + + err = parse_args(argc, argv, &path, &op_name); + if (err < 0) + return print_help(0, NULL, NULL, NULL); + + for (i = 0; i < G_N_ELEMENTS(entries); ++i) { + entry = entries + i; + if (strncmp(op_name, entry->name, entry->size) == 0) + break; + } + if (i == G_N_ELEMENTS(entries)) + return print_help(); + + entry->op(argc, argv, proto, &error); + + if (error != NULL) { + g_clear_error(&error); + return EXIT_FAILURE; + } + + return EXIT_SUCCESS; +} diff --git a/efw-downloader/src/subcmds.h b/efw-downloader/src/subcmds.h new file mode 100644 index 0000000..f10c420 --- /dev/null +++ b/efw-downloader/src/subcmds.h @@ -0,0 +1,8 @@ +// SPDX-License-Identifier: GPL-3.0-or-later +// Copyright (c) 2020 Takashi Sakamoto +#ifndef __SUBCMDS_H__ +#define __SUBCMDS_H__ + +int subcmd_device(int argc, char **argv); + +#endif