tools: move lxc-destroy to API symbols only

src/lxc/tools/lxc_destroy.c

@@ -18,19 +18,18 @@
  */
 
 #define _GNU_SOURCE
-#include "config.h"
-
+#include <fcntl.h>
 #include <libgen.h>
 #include <stdio.h>
+#include <string.h>
 #include <unistd.h>
+#include <sys/stat.h>
 #include <sys/types.h>
 
 #include <lxc/lxccontainer.h>
 
 #include "arguments.h"
-#include "log.h"
-#include "lxc.h"
-#include "utils.h"
+#include "tool_utils.h"
 
 static int my_parser(struct lxc_arguments* args, int c, char* arg);
 static bool quiet;
@@ -83,7 +82,7 @@ int main(int argc, char *argv[])
 
 	if (lxc_log_init(&log))
 		exit(EXIT_FAILURE);
-	lxc_log_options_no_override();
+
 	if (my_args.quiet)
 		quiet = true;
 
@@ -155,11 +154,11 @@ static int my_parser(struct lxc_arguments *args, int c, char *arg)
 static bool do_destroy(struct lxc_container *c)
 {
 	bool bret = true;
-	char path[MAXPATHLEN];
+	char path[TOOL_MAXPATHLEN];
 
 	/* First check whether the container has dependent clones or snapshots. */
-	int ret = snprintf(path, MAXPATHLEN, "%s/%s/lxc_snapshots", c->config_path, c->name);
-	if (ret < 0 || ret >= MAXPATHLEN)
+	int ret = snprintf(path, TOOL_MAXPATHLEN, "%s/%s/lxc_snapshots", c->config_path, c->name);
+	if (ret < 0 || ret >= TOOL_MAXPATHLEN)
 		return false;
 
 	if (file_exists(path)) {
@@ -168,8 +167,8 @@ static bool do_destroy(struct lxc_container *c)
 		return false;
 	}
 
-	ret = snprintf(path, MAXPATHLEN, "%s/%s/snaps", c->config_path, c->name);
-	if (ret < 0 || ret >= MAXPATHLEN)
+	ret = snprintf(path, TOOL_MAXPATHLEN, "%s/%s/snaps", c->config_path, c->name);
+	if (ret < 0 || ret >= TOOL_MAXPATHLEN)
 		return false;
 
 	if (rmdir(path) < 0 && errno != ENOENT) {
@@ -189,8 +188,13 @@ static bool do_destroy(struct lxc_container *c)
 
 	/* If the container was ephemeral we have already removed it when we
 	 * stopped it. */
-	if (c->is_defined(c) && !c->lxc_conf->ephemeral)
-		bret = c->destroy(c);
+	if (c->is_defined(c)) {
+		char buf[256];
+		ret = c->get_config_item(c, "lxc.ephemeral", buf, 256);
+		if (ret > 0 && strcmp(buf, "0") == 0) {
+			bret = c->destroy(c);
+		}
+	}
 
 	if (!bret) {
 		if (!quiet)
@@ -206,7 +210,7 @@ static bool do_destroy_with_snapshots(struct lxc_container *c)
 	struct lxc_container *c1;
 	struct stat fbuf;
 	bool bret = false;
-	char path[MAXPATHLEN];
+	char path[TOOL_MAXPATHLEN];
 	char *buf = NULL;
 	char *lxcpath = NULL;
 	char *lxcname = NULL;
@@ -216,8 +220,8 @@ static bool do_destroy_with_snapshots(struct lxc_container *c)
 	int counter = 0;
 
 	/* Destroy clones. */
-	ret = snprintf(path, MAXPATHLEN, "%s/%s/lxc_snapshots", c->config_path, c->name);
-	if (ret < 0 || ret >= MAXPATHLEN)
+	ret = snprintf(path, TOOL_MAXPATHLEN, "%s/%s/lxc_snapshots", c->config_path, c->name);
+	if (ret < 0 || ret >= TOOL_MAXPATHLEN)
 		return false;
 
 	fd = open(path, O_RDONLY | O_CLOEXEC);
@@ -268,8 +272,8 @@ static bool do_destroy_with_snapshots(struct lxc_container *c)
 	}
 
 	/* Destroy snapshots located in the containers snap/ folder. */
-	ret = snprintf(path, MAXPATHLEN, "%s/%s/snaps", c->config_path, c->name);
-	if (ret < 0 || ret >= MAXPATHLEN)
+	ret = snprintf(path, TOOL_MAXPATHLEN, "%s/%s/snaps", c->config_path, c->name);
+	if (ret < 0 || ret >= TOOL_MAXPATHLEN)
 		return false;
 
 	if (rmdir(path) < 0 && errno != ENOENT)

src/lxc/tools/tool_utils.c

@@ -596,3 +596,10 @@ int mkdir_p(const char *dir, mode_t mode)
 
 	return 0;
 }
+
+bool file_exists(const char *f)
+{
+	struct stat statbuf;
+
+	return stat(f, &statbuf) == 0;
+}

src/lxc/tools/tool_utils.h

@@ -140,6 +140,7 @@ extern char *lxc_string_join(const char *sep, const char **parts,
 			     bool use_as_prefix);
 
 extern int mkdir_p(const char *dir, mode_t mode);
+extern bool file_exists(const char *f);
 extern int is_dir(const char *path);
 
 extern char *get_template_path(const char *t);