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v260
src/path/path-tool.c
261 строка
11 KB
Zbigniew Jędrzejewski-Szmek
path: simplify run()
11 фев 2026, 13:47
11 фев 2026, 13:47
ff12bcd
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/* SPDX-License-Identifier: LGPL-2.1-or-later */ #include <getopt.h> #include <stdio.h> #include "sd-path.h" #include "alloc-util.h" #include "build.h" #include "errno-util.h" #include "log.h" #include "main-func.h" #include "pager.h" #include "pretty-print.h" #include "sort-util.h" #include "string-util.h" static const char *arg_suffix = NULL; static PagerFlags arg_pager_flags = 0; static const char* const path_table[_SD_PATH_MAX] = { [SD_PATH_TEMPORARY] = "temporary", [SD_PATH_TEMPORARY_LARGE] = "temporary-large", [SD_PATH_SYSTEM_SEARCH_CONFIGURATION] = "system-search-configuration", [SD_PATH_SYSTEM_BINARIES] = "system-binaries", [SD_PATH_SYSTEM_INCLUDE] = "system-include", [SD_PATH_SYSTEM_LIBRARY_PRIVATE] = "system-library-private", [SD_PATH_SYSTEM_LIBRARY_ARCH] = "system-library-arch", [SD_PATH_SYSTEM_SHARED] = "system-shared", [SD_PATH_SYSTEM_CONFIGURATION_FACTORY] = "system-configuration-factory", [SD_PATH_SYSTEM_STATE_FACTORY] = "system-state-factory", [SD_PATH_SYSTEM_CONFIGURATION] = "system-configuration", [SD_PATH_SYSTEM_RUNTIME] = "system-runtime", [SD_PATH_SYSTEM_RUNTIME_LOGS] = "system-runtime-logs", [SD_PATH_SYSTEM_STATE_PRIVATE] = "system-state-private", [SD_PATH_SYSTEM_STATE_LOGS] = "system-state-logs", [SD_PATH_SYSTEM_STATE_CACHE] = "system-state-cache", [SD_PATH_SYSTEM_STATE_SPOOL] = "system-state-spool", [SD_PATH_USER_BINARIES] = "user-binaries", [SD_PATH_USER_LIBRARY_PRIVATE] = "user-library-private", [SD_PATH_USER_LIBRARY_ARCH] = "user-library-arch", [SD_PATH_USER_SHARED] = "user-shared", [SD_PATH_USER_CONFIGURATION] = "user-configuration", [SD_PATH_USER_RUNTIME] = "user-runtime", [SD_PATH_USER_STATE_CACHE] = "user-state-cache", [SD_PATH_USER_STATE_PRIVATE] = "user-state-private", [SD_PATH_USER] = "user", [SD_PATH_USER_DOCUMENTS] = "user-documents", [SD_PATH_USER_MUSIC] = "user-music", [SD_PATH_USER_PICTURES] = "user-pictures", [SD_PATH_USER_VIDEOS] = "user-videos", [SD_PATH_USER_DOWNLOAD] = "user-download", [SD_PATH_USER_PUBLIC] = "user-public", [SD_PATH_USER_TEMPLATES] = "user-templates", [SD_PATH_USER_DESKTOP] = "user-desktop", [SD_PATH_SEARCH_BINARIES] = "search-binaries", [SD_PATH_SEARCH_BINARIES_DEFAULT] = "search-binaries-default", [SD_PATH_SEARCH_LIBRARY_PRIVATE] = "search-library-private", [SD_PATH_SEARCH_LIBRARY_ARCH] = "search-library-arch", [SD_PATH_SEARCH_SHARED] = "search-shared", [SD_PATH_SEARCH_CONFIGURATION_FACTORY] = "search-configuration-factory", [SD_PATH_SEARCH_STATE_FACTORY] = "search-state-factory", [SD_PATH_SEARCH_CONFIGURATION] = "search-configuration", [SD_PATH_SYSTEMD_UTIL] = "systemd-util", [SD_PATH_SYSTEMD_SYSTEM_UNIT] = "systemd-system-unit", [SD_PATH_SYSTEMD_SYSTEM_PRESET] = "systemd-system-preset", [SD_PATH_SYSTEMD_SYSTEM_CONF] = "systemd-system-conf", [SD_PATH_SYSTEMD_USER_UNIT] = "systemd-user-unit", [SD_PATH_SYSTEMD_USER_PRESET] = "systemd-user-preset", [SD_PATH_SYSTEMD_USER_CONF] = "systemd-user-conf", [SD_PATH_SYSTEMD_INITRD_PRESET] = "systemd-initrd-preset", [SD_PATH_SYSTEMD_SEARCH_SYSTEM_UNIT] = "systemd-search-system-unit", [SD_PATH_SYSTEMD_SEARCH_USER_UNIT] = "systemd-search-user-unit", [SD_PATH_SYSTEMD_SYSTEM_GENERATOR] = "systemd-system-generator", [SD_PATH_SYSTEMD_USER_GENERATOR] = "systemd-user-generator", [SD_PATH_SYSTEMD_SEARCH_SYSTEM_GENERATOR] = "systemd-search-system-generator", [SD_PATH_SYSTEMD_SEARCH_USER_GENERATOR] = "systemd-search-user-generator", [SD_PATH_SYSTEMD_SLEEP] = "systemd-sleep", [SD_PATH_SYSTEMD_SHUTDOWN] = "systemd-shutdown", [SD_PATH_TMPFILES] = "tmpfiles", [SD_PATH_SYSUSERS] = "sysusers", [SD_PATH_SYSCTL] = "sysctl", [SD_PATH_BINFMT] = "binfmt", [SD_PATH_MODULES_LOAD] = "modules-load", [SD_PATH_CATALOG] = "catalog", [SD_PATH_SYSTEMD_SEARCH_NETWORK] = "systemd-search-network", [SD_PATH_SYSTEMD_SYSTEM_ENVIRONMENT_GENERATOR] = "systemd-system-environment-generator", [SD_PATH_SYSTEMD_USER_ENVIRONMENT_GENERATOR] = "systemd-user-environment-generator", [SD_PATH_SYSTEMD_SEARCH_SYSTEM_ENVIRONMENT_GENERATOR] = "systemd-search-system-environment-generator", [SD_PATH_SYSTEMD_SEARCH_USER_ENVIRONMENT_GENERATOR] = "systemd-search-user-environment-generator", [SD_PATH_SYSTEM_CREDENTIAL_STORE] = "system-credential-store", [SD_PATH_SYSTEM_SEARCH_CREDENTIAL_STORE] = "system-search-credential-store", [SD_PATH_SYSTEM_CREDENTIAL_STORE_ENCRYPTED] = "system-credential-store-encrypted", [SD_PATH_SYSTEM_SEARCH_CREDENTIAL_STORE_ENCRYPTED] = "system-search-credential-store-encrypted", [SD_PATH_USER_CREDENTIAL_STORE] = "user-credential-store", [SD_PATH_USER_SEARCH_CREDENTIAL_STORE] = "user-search-credential-store", [SD_PATH_USER_CREDENTIAL_STORE_ENCRYPTED] = "user-credential-store-encrypted", [SD_PATH_USER_SEARCH_CREDENTIAL_STORE_ENCRYPTED] = "user-search-credential-store-encrypted", }; static int order_cmp(const size_t *a, const size_t *b) { assert(*a < ELEMENTSOF(path_table)); assert(*b < ELEMENTSOF(path_table)); return strcmp(path_table[*a], path_table[*b]); } static int list_paths(void) { int ret = 0, r; pager_open(arg_pager_flags); size_t order[ELEMENTSOF(path_table)]; for (size_t i = 0; i < ELEMENTSOF(order); i++) order[i] = i; typesafe_qsort(order, ELEMENTSOF(order), order_cmp); for (size_t i = 0; i < ELEMENTSOF(order); i++) { size_t j = order[i]; const char *t = ASSERT_PTR(path_table[j]); _cleanup_free_ char *p = NULL; r = sd_path_lookup(j, arg_suffix, &p); if (r < 0) { log_full_errno(r == -ENXIO ? LOG_DEBUG : LOG_ERR, r, "Failed to query %s, proceeding: %m", t); if (r != -ENXIO) RET_GATHER(ret, r); continue; } printf("%s%s:%s %s\n", ansi_highlight(), t, ansi_normal(), p); } return ret; } static int print_path(const char *n) { int r; for (size_t i = 0; i < ELEMENTSOF(path_table); i++) if (streq(path_table[i], n)) { _cleanup_free_ char *p = NULL; r = sd_path_lookup(i, arg_suffix, &p); if (r < 0) return log_error_errno(r, "Failed to query %s: %m", n); printf("%s\n", p); return 0; } return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "Path %s not known.", n); } static int help(void) { _cleanup_free_ char *link = NULL; int r; r = terminal_urlify_man("systemd-path", "1", &link); if (r < 0) return log_oom(); printf("%s [OPTIONS...] [NAME...]\n" "\n%sShow system and user paths.%s\n\n" " -h --help Show this help\n" " --version Show package version\n" " --suffix=SUFFIX Suffix to append to paths\n" " --no-pager Do not pipe output into a pager\n" "\nSee the %s for details.\n", program_invocation_short_name, ansi_highlight(), ansi_normal(), link); return 0; } static int parse_argv(int argc, char *argv[]) { enum { ARG_VERSION = 0x100, ARG_SUFFIX, ARG_NO_PAGER, }; static const struct option options[] = { { "help", no_argument, NULL, 'h' }, { "version", no_argument, NULL, ARG_VERSION }, { "suffix", required_argument, NULL, ARG_SUFFIX }, { "no-pager", no_argument, NULL, ARG_NO_PAGER }, {} }; int c; assert(argc >= 0); assert(argv); while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) switch (c) { case 'h': return help(); case ARG_VERSION: return version(); case ARG_SUFFIX: arg_suffix = optarg; break; case ARG_NO_PAGER: arg_pager_flags |= PAGER_DISABLE; break; case '?': return -EINVAL; default: assert_not_reached(); } return 1; } static int run(int argc, char* argv[]) { int r; log_setup(); r = parse_argv(argc, argv); if (r <= 0) return r; if (optind >= argc) return list_paths(); for (int i = optind; i < argc; i++) RET_GATHER(r, print_path(argv[i])); return r; } DEFINE_MAIN_FUNCTION(run);