diff options
Diffstat (limited to 'src/binfmt/binfmt.c')
| -rw-r--r-- | src/binfmt/binfmt.c | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/src/binfmt/binfmt.c b/src/binfmt/binfmt.c deleted file mode 100644 index eeef04fb1c..0000000000 --- a/src/binfmt/binfmt.c +++ /dev/null @@ -1,203 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2010 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <getopt.h> -#include <limits.h> -#include <stdbool.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "alloc-util.h" -#include "conf-files.h" -#include "def.h" -#include "fd-util.h" -#include "fileio.h" -#include "log.h" -#include "string-util.h" -#include "strv.h" -#include "util.h" - -static const char conf_file_dirs[] = CONF_PATHS_NULSTR("binfmt.d"); - -static int delete_rule(const char *rule) { - _cleanup_free_ char *x = NULL, *fn = NULL; - char *e; - - assert(rule[0]); - - x = strdup(rule); - if (!x) - return log_oom(); - - e = strchrnul(x+1, x[0]); - *e = 0; - - fn = strappend("/proc/sys/fs/binfmt_misc/", x+1); - if (!fn) - return log_oom(); - - return write_string_file(fn, "-1", 0); -} - -static int apply_rule(const char *rule) { - int r; - - delete_rule(rule); - - r = write_string_file("/proc/sys/fs/binfmt_misc/register", rule, 0); - if (r < 0) - return log_error_errno(r, "Failed to add binary format: %m"); - - return 0; -} - -static int apply_file(const char *path, bool ignore_enoent) { - _cleanup_fclose_ FILE *f = NULL; - int r; - - assert(path); - - r = search_and_fopen_nulstr(path, "re", NULL, conf_file_dirs, &f); - if (r < 0) { - if (ignore_enoent && r == -ENOENT) - return 0; - - return log_error_errno(r, "Failed to open file '%s', ignoring: %m", path); - } - - log_debug("apply: %s", path); - for (;;) { - char l[LINE_MAX], *p; - int k; - - if (!fgets(l, sizeof(l), f)) { - if (feof(f)) - break; - - return log_error_errno(errno, "Failed to read file '%s', ignoring: %m", path); - } - - p = strstrip(l); - if (!*p) - continue; - if (strchr(COMMENTS "\n", *p)) - continue; - - k = apply_rule(p); - if (k < 0 && r == 0) - r = k; - } - - return r; -} - -static void help(void) { - printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" - "Registers binary formats.\n\n" - " -h --help Show this help\n" - " --version Show package version\n" - , program_invocation_short_name); -} - -static int parse_argv(int argc, char *argv[]) { - - enum { - ARG_VERSION = 0x100, - }; - - static const struct option options[] = { - { "help", no_argument, NULL, 'h' }, - { "version", no_argument, NULL, ARG_VERSION }, - {} - }; - - int c; - - assert(argc >= 0); - assert(argv); - - while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) - - switch (c) { - - case 'h': - help(); - return 0; - - case ARG_VERSION: - return version(); - - case '?': - return -EINVAL; - - default: - assert_not_reached("Unhandled option"); - } - - return 1; -} - -int main(int argc, char *argv[]) { - int r, k; - - r = parse_argv(argc, argv); - if (r <= 0) - return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; - - log_set_target(LOG_TARGET_AUTO); - log_parse_environment(); - log_open(); - - umask(0022); - - r = 0; - - if (argc > optind) { - int i; - - for (i = optind; i < argc; i++) { - k = apply_file(argv[i], false); - if (k < 0 && r == 0) - r = k; - } - } else { - _cleanup_strv_free_ char **files = NULL; - char **f; - - r = conf_files_list_nulstr(&files, ".conf", NULL, conf_file_dirs); - if (r < 0) { - log_error_errno(r, "Failed to enumerate binfmt.d files: %m"); - goto finish; - } - - /* Flush out all rules */ - write_string_file("/proc/sys/fs/binfmt_misc/status", "-1", 0); - - STRV_FOREACH(f, files) { - k = apply_file(*f, true); - if (k < 0 && r == 0) - r = k; - } - } - -finish: - return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; -} |