#include <stdbool.h>
#include <stdlib.h>
#include <unistd.h>
-#include <regex.h>
#include <limits.h>
#include <libgen.h>
#include <sys/types.h>
static bool pid;
static bool stats;
static bool humanize = true;
-static char *test_state = NULL;
static char **key = NULL;
static int keys = 0;
+static int filter_count = 0;
static int my_parser(struct lxc_arguments* args, int c, char* arg)
{
key[keys] = arg;
keys++;
break;
- case 'i': ips = true; break;
- case 's': state = true; break;
- case 'p': pid = true; break;
- case 'S': stats = true; break;
+ case 'i': ips = true; filter_count += 1; break;
+ case 's': state = true; filter_count += 1; break;
+ case 'p': pid = true; filter_count += 1; break;
+ case 'S': stats = true; filter_count += 5; break;
case 'H': humanize = false; break;
- case 't': test_state = arg; break;
}
return 0;
}
{"pid", no_argument, 0, 'p'},
{"stats", no_argument, 0, 'S'},
{"no-humanize", no_argument, 0, 'H'},
- {"state-is", required_argument, 0, 't'},
LXC_COMMON_OPTIONS,
};
-p, --pid shows the process id of the init container\n\
-S, --stats shows usage stats\n\
-H, --no-humanize shows stats as raw numbers, not humanized\n\
- -s, --state shows the state of the container\n\
- -t, --state-is=STATE test if current state is STATE\n\
- returns success if it matches, false otherwise\n",
- .name = ".*",
+ -s, --state shows the state of the container\n",
+ .name = NULL,
.options = my_longopts,
.parser = my_parser,
.checker = NULL,
}
}
+void print_info_msg_int(const char *key, int value)
+{
+ if (humanize)
+ printf("%-15s %d\n", key, value);
+ else {
+ if (filter_count == 1)
+ printf("%d\n", value);
+ else
+ printf("%-15s %d\n", key, value);
+ }
+}
+
+void print_info_msg_str(const char *key, const char *value)
+{
+ if (humanize)
+ printf("%-15s %s\n", key, value);
+ else {
+ if (filter_count == 1)
+ printf("%s\n", value);
+ else
+ printf("%-15s %s\n", key, value);
+ }
+}
+
static int print_info(const char *name, const char *lxcpath)
{
int i;
struct lxc_container *c;
c = lxc_container_new(name, lxcpath);
- if (!c)
+ if (!c) {
+ fprintf(stderr, "Failure to retrieve information on %s\n", c->name);
return -1;
+ }
if (!c->may_control(c)) {
fprintf(stderr, "Insufficent privileges to control %s\n", c->name);
return -1;
}
- if (!state && !pid && !ips && !stats && keys <= 0)
- state = pid = ips = stats = true;
-
- printf("%-15s %s\n", "Name:", c->name);
+ if (!c->is_running(c) && !c->is_defined(c)) {
+ fprintf(stderr, "%s doesn't exist\n", c->name);
+ lxc_container_put(c);
+ return -1;
+ }
- if (state || test_state) {
- if (test_state)
- return strcmp(c->state(c), test_state) != 0;
+ if (!state && !pid && !ips && !stats && keys <= 0) {
+ state = pid = ips = stats = true;
+ print_info_msg_str("Name:", c->name);
+ }
- printf("%-15s %s\n", "State:", c->state(c));
+ if (state) {
+ print_info_msg_str("State:", c->state(c));
}
if (pid) {
initpid = c->init_pid(c);
if (initpid >= 0)
- printf("%-15s %d\n", "Pid:", initpid);
+ print_info_msg_int("PID:", initpid);
}
if (ips) {
i = 0;
while (addresses[i]) {
address = addresses[i];
- printf("%-15s %s\n", "IP:", address);
+ print_info_msg_str("IP:", address);
i++;
}
}
int main(int argc, char *argv[])
{
- int rc, i, len, ret = EXIT_FAILURE;
- char *regexp;
- regex_t preg;
- int ct_cnt;
- char **ct_name;
- bool printed;
+ int ret = EXIT_FAILURE;
if (lxc_arguments_parse(&my_args, argc, argv))
- goto err1;
+ return ret;
if (!my_args.log_file)
my_args.log_file = "none";
if (lxc_log_init(my_args.name, my_args.log_file, my_args.log_priority,
my_args.progname, my_args.quiet, my_args.lxcpath[0]))
- goto err1;
+ return ret;
- len = strlen(my_args.name) + 3;
- regexp = malloc(len + 3);
- if (!regexp) {
- fprintf(stderr, "failed to allocate memory");
- goto err1;
- }
- rc = snprintf(regexp, len, "^%s$", my_args.name);
- if (rc < 0 || rc >= len) {
- fprintf(stderr, "Name too long");
- goto err2;
- }
-
- if (regcomp(&preg, regexp, REG_NOSUB|REG_EXTENDED)) {
- fprintf(stderr, "failed to compile the regex '%s'", my_args.name);
- goto err2;
- }
+ if (print_info(my_args.name, my_args.lxcpath[0]) == 0)
+ ret = EXIT_SUCCESS;
- printed = false;
- ct_cnt = list_all_containers(my_args.lxcpath[0], &ct_name, NULL);
- if (ct_cnt < 0)
- goto err3;
-
- for (i = 0; i < ct_cnt; i++) {
- if (regexec(&preg, ct_name[i], 0, NULL, 0) == 0)
- {
- if (printed)
- printf("\n");
- print_info(ct_name[i], my_args.lxcpath[0]);
- printed = true;
- }
- free(ct_name[i]);
- }
- if (ct_name)
- free(ct_name);
- ret = EXIT_SUCCESS;
-
-err3:
- regfree(&preg);
-err2:
- free(regexp);
-err1:
return ret;
}
projects / thirdparty / lxc.git / commitdiff
