along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include <locale.h>
#include <stdio.h>
#include <string.h>
#include <getopt.h>
static Set *matches = NULL;
static FILE* output = NULL;
+static char* field = NULL;
static int arg_no_pager = false;
+static int arg_no_legend = false;
static Set *new_matches(void) {
Set *set;
"Commands:\n"
" -h --help Show this help\n"
" --version Print version string\n"
+ " -F --field=FIELD List all values a certain field takes\n"
+ " gdb Start gdb for the first matching coredump\n"
" list List available coredumps\n"
" dump PID Print coredump to stdout\n"
" dump PATH Print coredump to stdout\n"
enum {
ARG_VERSION = 0x100,
ARG_NO_PAGER,
+ ARG_NO_LEGEND,
};
int r, c;
{ "help", no_argument, NULL, 'h' },
{ "version" , no_argument, NULL, ARG_VERSION },
{ "no-pager", no_argument, NULL, ARG_NO_PAGER },
+ { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
{ "output", required_argument, NULL, 'o' },
+ { "field", required_argument, NULL, 'F' },
{ NULL, 0, NULL, 0 }
};
assert(argc >= 0);
assert(argv);
- while ((c = getopt_long(argc, argv, "ho:", options, NULL)) >= 0)
+ while ((c = getopt_long(argc, argv, "ho:F:", options, NULL)) >= 0)
switch(c) {
case 'h':
help();
case ARG_VERSION:
puts(PACKAGE_STRING);
- puts(DISTRIBUTION);
puts(SYSTEMD_FEATURES);
arg_action = ACTION_NONE;
return 0;
arg_no_pager = true;
break;
+ case ARG_NO_LEGEND:
+ arg_no_legend = true;
+ break;
+
case 'o':
if (output) {
log_error("cannot set output more than once");
break;
+ case 'F':
+ if (field) {
+ log_error("cannot use --field/-F more than once");
+ return -EINVAL;
+ }
+
+ field = optarg;
+ break;
+
case '?':
return -EINVAL;
}
}
+ if (field && arg_action != ACTION_LIST) {
+ log_error("Option --field/-F only makes sense with list");
+ return -EINVAL;
+ }
+
while (optind < argc) {
r = add_match(matches, argv[optind]);
if (r != 0)
const char *name,
const char **var) {
- size_t field;
+ size_t ident;
- field = strlen(name) + 1; /* name + "=" */
+ ident = strlen(name) + 1; /* name + "=" */
- if (len < field)
+ if (len < ident)
return 0;
- if (memcmp(data, name, field - 1) != 0)
+ if (memcmp(data, name, ident - 1) != 0)
return 0;
- if (((const char*) data)[field - 1] != '=')
+ if (((const char*) data)[ident - 1] != '=')
return 0;
- *var = strndup((const char*)data + field, len - field);
- if (!var)
+ *var = strndup((const char*)data + ident, len - ident);
+ if (!*var)
return log_oom();
return 0;
}
-static int print_entry(FILE* file, sd_journal *j, int had_header) {
+static void print_field(FILE* file, sd_journal *j) {
+ const char _cleanup_free_ *value = NULL;
+ const void *d;
+ size_t l;
+
+ assert(field);
+
+ SD_JOURNAL_FOREACH_DATA(j, d, l)
+ retrieve(d, l, field, &value);
+ if (value)
+ fprintf(file, "%s\n", value);
+}
+
+static int print_entry(FILE* file, sd_journal *j, int had_legend) {
const char _cleanup_free_
*pid = NULL, *uid = NULL, *gid = NULL,
*sgnl = NULL, *exe = NULL;
format_timestamp(buf, sizeof(buf), t);
- if (!had_header)
+ if (!had_legend && !arg_no_legend)
fprintf(file, "%-*s %*s %*s %*s %*s %s\n",
FORMAT_TIMESTAMP_MAX-1, "TIME",
6, "PID",
assert(j);
- SD_JOURNAL_FOREACH(j)
- print_entry(stdout, j, found++);
+ /* The coredumps are likely to compressed, and for just
+ * listing them we don#t need to decompress them, so let's
+ * pick a fairly low data threshold here */
+ sd_journal_set_data_threshold(j, 4096);
- if (!found) {
+ SD_JOURNAL_FOREACH(j) {
+ if (field)
+ print_field(stdout, j);
+ else
+ print_entry(stdout, j, found++);
+ }
+
+ if (!field && !found) {
log_notice("No coredumps found");
return -ESRCH;
}
assert(j);
+ /* We want full data, nothing truncated. */
+ sd_journal_set_data_threshold(j, 0);
+
r = focus(j);
if (r < 0)
return r;
assert(j);
+ sd_journal_set_data_threshold(j, 0);
+
r = focus(j);
if (r < 0)
return r;
Iterator it;
int r = 0;
+ setlocale(LC_ALL, "");
log_parse_environment();
log_open();
matches = new_matches();
- if (!matches)
+ if (!matches) {
+ r = -ENOMEM;
goto end;
+ }
- if (parse_argv(argc, argv))
+ r = parse_argv(argc, argv);
+ if (r < 0)
goto end;
if (arg_action == ACTION_NONE)