48c16f9052
Relocate the `uname` shell implementation from uname sample, so that it can be reused by other application and the uname sample only uses POSIX APIs. Signed-off-by: Yong Cong Sin <ycsin@meta.com>
157 lines
3 KiB
C
157 lines
3 KiB
C
/*
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* Copyright (c) 2024 Meta
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <unistd.h>
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#include <zephyr/posix/sys/utsname.h>
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#include <zephyr/shell/shell.h>
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#define UNAME_KERNEL BIT(0)
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#define UNAME_NODE BIT(1)
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#define UNAME_RELEASE BIT(2)
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#define UNAME_VERSION BIT(3)
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#define UNAME_MACHINE BIT(4)
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#define UNAME_PLATFORM BIT(5)
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#define UNAME_UNKNOWN BIT(6)
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#define UNAME_ALL \
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(UNAME_KERNEL | UNAME_NODE | UNAME_RELEASE | UNAME_VERSION | UNAME_MACHINE | UNAME_PLATFORM)
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static void uname_print_usage(const struct shell *sh)
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{
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shell_print(sh, "usage: uname [-asonrvmpi]");
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}
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static int uname_cmd_handler(const struct shell *sh, size_t argc, char **argv)
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{
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struct getopt_state *state = getopt_state_get();
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struct utsname info;
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unsigned int set;
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int option;
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char badarg = 0;
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int ret;
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set = 0;
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/* Get the uname options */
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optind = 1;
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while ((option = getopt(argc, argv, "asonrvmpi")) != -1) {
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switch (option) {
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case 'a':
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set = UNAME_ALL;
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break;
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case 'o':
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case 's':
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set |= UNAME_KERNEL;
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break;
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case 'n':
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set |= UNAME_NODE;
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break;
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case 'r':
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set |= UNAME_RELEASE;
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break;
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case 'v':
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set |= UNAME_VERSION;
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break;
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case 'm':
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set |= UNAME_MACHINE;
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break;
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case 'p':
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if (set != UNAME_ALL) {
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set |= UNAME_UNKNOWN;
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}
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break;
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case 'i':
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set |= UNAME_PLATFORM;
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break;
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case '?':
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default:
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badarg = (char)state->optopt;
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break;
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}
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}
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if (argc != optind) {
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shell_error(sh, "extra operand %s", argv[optind]);
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uname_print_usage(sh);
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return -1;
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}
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/* If a bad argument was encountered, then return without processing the
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* command
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*/
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if (badarg != 0) {
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shell_error(sh, "uname: illegal option -- %c", badarg);
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uname_print_usage(sh);
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return -1;
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}
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/* If nothing is provided on the command line, the default is -s */
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if (set == 0) {
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set = UNAME_KERNEL;
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}
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/* Get uname data */
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ret = uname(&info);
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if (ret < 0) {
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shell_error(sh, "cannot get system name");
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return -1;
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}
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/* Process each option */
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/* print the kernel/operating system name */
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if (set & UNAME_KERNEL) {
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shell_fprintf(sh, SHELL_NORMAL, "%s ", info.sysname);
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}
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/* Print nodename */
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if (set & UNAME_NODE) {
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shell_fprintf(sh, SHELL_NORMAL, "%s ", info.nodename);
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}
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/* Print the kernel release */
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if (set & UNAME_RELEASE) {
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shell_fprintf(sh, SHELL_NORMAL, "%s ", info.release);
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}
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/* Print the kernel version */
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if (set & UNAME_VERSION) {
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shell_fprintf(sh, SHELL_NORMAL, "%s ", info.version);
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}
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/* Print the machine hardware name */
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if (set & UNAME_MACHINE) {
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shell_fprintf(sh, SHELL_NORMAL, "%s ", info.machine);
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}
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/* Print the machine platform name */
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if (set & UNAME_PLATFORM) {
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shell_fprintf(sh, SHELL_NORMAL, "%s ", CONFIG_BOARD);
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}
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/* Print "unknown" */
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if (set & UNAME_UNKNOWN) {
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shell_fprintf(sh, SHELL_NORMAL, "%s ", "unknown");
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}
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shell_fprintf(sh, SHELL_NORMAL, "\n");
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return 0;
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}
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SHELL_CMD_REGISTER(uname, NULL, NULL, uname_cmd_handler);
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