diff options
Diffstat (limited to 'src/journal')
| -rw-r--r-- | src/journal/journalctl.c | 111 |
1 files changed, 60 insertions, 51 deletions
diff --git a/src/journal/journalctl.c b/src/journal/journalctl.c index cb252eb0b8..122b0e64fc 100644 --- a/src/journal/journalctl.c +++ b/src/journal/journalctl.c @@ -71,7 +71,8 @@ static bool arg_no_tail = false; static bool arg_quiet = false; static bool arg_merge = false; static bool arg_boot = false; -static char *arg_boot_descriptor = NULL; +static sd_id128_t arg_boot_id = {}; +static int arg_boot_offset = 0; static bool arg_dmesg = false; static const char *arg_cursor = NULL; static const char *arg_after_cursor = NULL; @@ -122,6 +123,41 @@ static void pager_open_if_enabled(void) { pager_open(arg_pager_end); } +static int parse_boot_descriptor(const char *x, sd_id128_t *boot_id, int *offset) { + sd_id128_t id = SD_ID128_NULL; + int off = 0, r; + + if (strlen(x) >= 32) { + char *t; + + t = strndupa(x, 32); + r = sd_id128_from_string(t, &id); + if (r >= 0) + x += 32; + + if (*x != '-' && *x != '+' && *x != 0) + return -EINVAL; + + if (*x != 0) { + r = safe_atoi(x, &off); + if (r < 0) + return r; + } + } else { + r = safe_atoi(x, &off); + if (r < 0) + return r; + } + + if (boot_id) + *boot_id = id; + + if (offset) + *offset = off; + + return 0; +} + static int help(void) { pager_open_if_enabled(); @@ -372,16 +408,23 @@ static int parse_argv(int argc, char *argv[]) { case 'b': arg_boot = true; - if (optarg) - arg_boot_descriptor = optarg; - else if (optind < argc) { - int boot; + if (optarg) { + r = parse_boot_descriptor(optarg, &arg_boot_id, &arg_boot_offset); + if (r < 0) { + log_error("Failed to parse boot descriptor '%s'", optarg); + return -EINVAL; + } + } else { + + /* Hmm, no argument? Maybe the next + * word on the command line is + * supposed to be the argument? Let's + * see if there is one and is parsable + * as a boot descriptor... */ - if (argv[optind][0] != '-' || - safe_atoi(argv[optind], &boot) >= 0) { - arg_boot_descriptor = argv[optind]; + if (optind < argc && + parse_boot_descriptor(argv[optind], &arg_boot_id, &arg_boot_offset) >= 0) optind++; - } } break; @@ -819,9 +862,6 @@ static int get_relative_boot_id(sd_journal *j, sd_id128_t *boot_id, int relative assert(j); assert(boot_id); - if (relative == 0 && !sd_id128_equal(*boot_id, SD_ID128_NULL)) - return 0; - r = sd_journal_query_unique(j, "_BOOT_ID"); if (r < 0) return r; @@ -888,58 +928,27 @@ static int get_relative_boot_id(sd_journal *j, sd_id128_t *boot_id, int relative static int add_boot(sd_journal *j) { char match[9+32+1] = "_BOOT_ID="; - char *offset; - sd_id128_t boot_id = SD_ID128_NULL; - int r, relative = 0; + int r; assert(j); if (!arg_boot) return 0; - if (!arg_boot_descriptor) + if (arg_boot_offset == 0 && sd_id128_equal(arg_boot_id, SD_ID128_NULL)) return add_match_this_boot(j, arg_machine); - if (strlen(arg_boot_descriptor) >= 32) { - char tmp = arg_boot_descriptor[32]; - arg_boot_descriptor[32] = '\0'; - r = sd_id128_from_string(arg_boot_descriptor, &boot_id); - arg_boot_descriptor[32] = tmp; - - if (r < 0) { - log_error("Failed to parse boot ID '%.32s': %s", - arg_boot_descriptor, strerror(-r)); - return r; - } - - offset = arg_boot_descriptor + 32; - - if (*offset && *offset != '-' && *offset != '+') { - log_error("Relative boot ID offset must start with a '+' or a '-', found '%s' ", offset); - return -EINVAL; - } - } else - offset = arg_boot_descriptor; - - if (*offset) { - r = safe_atoi(offset, &relative); - if (r < 0) { - log_error("Failed to parse relative boot ID number '%s'", offset); - return -EINVAL; - } - } - - r = get_relative_boot_id(j, &boot_id, relative); + r = get_relative_boot_id(j, &arg_boot_id, arg_boot_offset); if (r < 0) { - if (sd_id128_equal(boot_id, SD_ID128_NULL)) - log_error("Failed to look up boot %+d: %s", relative, strerror(-r)); + if (sd_id128_equal(arg_boot_id, SD_ID128_NULL)) + log_error("Failed to look up boot %+i: %s", arg_boot_offset, strerror(-r)); else - log_error("Failed to look up boot ID "SD_ID128_FORMAT_STR"%+d: %s", - SD_ID128_FORMAT_VAL(boot_id), relative, strerror(-r)); + log_error("Failed to look up boot ID "SD_ID128_FORMAT_STR"%+i: %s", + SD_ID128_FORMAT_VAL(arg_boot_id), arg_boot_offset, strerror(-r)); return r; } - sd_id128_to_string(boot_id, match + 9); + sd_id128_to_string(arg_boot_id, match + 9); r = sd_journal_add_match(j, match, sizeof(match) - 1); if (r < 0) { |