179 lines
6.6 KiB
Diff
179 lines
6.6 KiB
Diff
From 2c3dd6140293fb09b4c78b5db2dbcad35ee7d002 Mon Sep 17 00:00:00 2001
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From: Lennart Poettering <lennart@poettering.net>
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Date: Thu, 26 Dec 2013 01:52:01 +0100
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Subject: [PATCH] journalctl: make sure -b --foobar cannot be misunderstood as
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--boot=--foobar
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Conflicts:
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src/journal/journalctl.c
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src/systemd/sd-bus.h
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---
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src/journal/journalctl.c | 111 +++++++++++++++++++++++++----------------------
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1 file changed, 60 insertions(+), 51 deletions(-)
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diff --git a/src/journal/journalctl.c b/src/journal/journalctl.c
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index 1d66792..ccd96b2 100644
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--- a/src/journal/journalctl.c
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+++ b/src/journal/journalctl.c
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@@ -72,7 +72,8 @@ static bool arg_no_tail = false;
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static bool arg_quiet = false;
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static bool arg_merge = false;
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static bool arg_boot = false;
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-static char *arg_boot_descriptor = NULL;
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+static sd_id128_t arg_boot_id = {};
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+static int arg_boot_offset = 0;
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static bool arg_dmesg = false;
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static const char *arg_cursor = NULL;
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static const char *arg_after_cursor = NULL;
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@@ -122,6 +123,41 @@ static void pager_open_if_enabled(void) {
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pager_open(arg_pager_end);
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}
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+static int parse_boot_descriptor(const char *x, sd_id128_t *boot_id, int *offset) {
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+ sd_id128_t id = SD_ID128_NULL;
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+ int off = 0, r;
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+
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+ if (strlen(x) >= 32) {
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+ char *t;
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+
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+ t = strndupa(x, 32);
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+ r = sd_id128_from_string(t, &id);
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+ if (r >= 0)
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+ x += 32;
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+
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+ if (*x != '-' && *x != '+' && *x != 0)
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+ return -EINVAL;
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+
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+ if (*x != 0) {
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+ r = safe_atoi(x, &off);
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+ if (r < 0)
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+ return r;
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+ }
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+ } else {
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+ r = safe_atoi(x, &off);
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+ if (r < 0)
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+ return r;
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+ }
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+
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+ if (boot_id)
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+ *boot_id = id;
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+
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+ if (offset)
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+ *offset = off;
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+
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+ return 0;
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+}
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+
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static int help(void) {
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pager_open_if_enabled();
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@@ -365,16 +401,23 @@ static int parse_argv(int argc, char *argv[]) {
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case 'b':
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arg_boot = true;
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- if (optarg)
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- arg_boot_descriptor = optarg;
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- else if (optind < argc) {
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- int boot;
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+ if (optarg) {
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+ r = parse_boot_descriptor(optarg, &arg_boot_id, &arg_boot_offset);
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+ if (r < 0) {
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+ log_error("Failed to parse boot descriptor '%s'", optarg);
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+ return -EINVAL;
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+ }
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+ } else {
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+
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+ /* Hmm, no argument? Maybe the next
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+ * word on the command line is
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+ * supposed to be the argument? Let's
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+ * see if there is one and is parsable
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+ * as a boot descriptor... */
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- if (argv[optind][0] != '-' ||
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- safe_atoi(argv[optind], &boot) >= 0) {
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- arg_boot_descriptor = argv[optind];
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+ if (optind < argc &&
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+ parse_boot_descriptor(argv[optind], &arg_boot_id, &arg_boot_offset) >= 0)
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optind++;
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- }
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}
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break;
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@@ -809,9 +852,6 @@ static int get_relative_boot_id(sd_journal *j, sd_id128_t *boot_id, int relative
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assert(j);
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assert(boot_id);
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- if (relative == 0 && !sd_id128_equal(*boot_id, SD_ID128_NULL))
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- return 0;
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-
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r = sd_journal_query_unique(j, "_BOOT_ID");
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if (r < 0)
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return r;
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@@ -878,58 +918,27 @@ static int get_relative_boot_id(sd_journal *j, sd_id128_t *boot_id, int relative
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static int add_boot(sd_journal *j) {
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char match[9+32+1] = "_BOOT_ID=";
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- char *offset;
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- sd_id128_t boot_id = SD_ID128_NULL;
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- int r, relative = 0;
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+ int r;
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assert(j);
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if (!arg_boot)
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return 0;
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- if (!arg_boot_descriptor)
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+ if (arg_boot_offset == 0 && sd_id128_equal(arg_boot_id, SD_ID128_NULL))
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return add_match_this_boot(j);
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- if (strlen(arg_boot_descriptor) >= 32) {
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- char tmp = arg_boot_descriptor[32];
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- arg_boot_descriptor[32] = '\0';
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- r = sd_id128_from_string(arg_boot_descriptor, &boot_id);
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- arg_boot_descriptor[32] = tmp;
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-
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- if (r < 0) {
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- log_error("Failed to parse boot ID '%.32s': %s",
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- arg_boot_descriptor, strerror(-r));
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- return r;
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- }
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-
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- offset = arg_boot_descriptor + 32;
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-
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- if (*offset && *offset != '-' && *offset != '+') {
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- log_error("Relative boot ID offset must start with a '+' or a '-', found '%s' ", offset);
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- return -EINVAL;
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- }
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- } else
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- offset = arg_boot_descriptor;
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-
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- if (*offset) {
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- r = safe_atoi(offset, &relative);
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- if (r < 0) {
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- log_error("Failed to parse relative boot ID number '%s'", offset);
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- return -EINVAL;
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- }
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- }
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-
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- r = get_relative_boot_id(j, &boot_id, relative);
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+ r = get_relative_boot_id(j, &arg_boot_id, arg_boot_offset);
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if (r < 0) {
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- if (sd_id128_equal(boot_id, SD_ID128_NULL))
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- log_error("Failed to look up boot %+d: %s", relative, strerror(-r));
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+ if (sd_id128_equal(arg_boot_id, SD_ID128_NULL))
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+ log_error("Failed to look up boot %+i: %s", arg_boot_offset, strerror(-r));
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else
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- log_error("Failed to look up boot ID "SD_ID128_FORMAT_STR"%+d: %s",
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- SD_ID128_FORMAT_VAL(boot_id), relative, strerror(-r));
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+ log_error("Failed to look up boot ID "SD_ID128_FORMAT_STR"%+i: %s",
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+ SD_ID128_FORMAT_VAL(arg_boot_id), arg_boot_offset, strerror(-r));
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return r;
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}
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- sd_id128_to_string(boot_id, match + 9);
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+ sd_id128_to_string(arg_boot_id, match + 9);
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r = sd_journal_add_match(j, match, sizeof(match) - 1);
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if (r < 0) {
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