Improved the entry listing

src/backing.c

@@ -196,3 +196,19 @@ Status GetLatestBacking(char** _backing_identifier) {
 
 	return status;
 }
+
+Status GetBackingDiskInfo(const char* backing_identifier, DiskInfo* _info) {
+	*_info = (DiskInfo){0};
+
+	// Get the backing path
+	char* backing_path = NULL;
+	Status status = GetBackingPath(backing_identifier, &backing_path);
+	if (status != SUCCESS)
+		return status;
+
+	// Get the disk info
+	status = GetDiskInfo(backing_path, _info);
+	free(backing_path);
+
+	return status;
+}

src/backing.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include "utils.h"
+#include "disk.h"
 
 bool IsBackingIdentifierValid(const char* backing_identifier);
 int GetBackingIndex(const char* backing_identifier);
@@ -14,4 +15,6 @@ Status AddBacking(const char* backing_identifier, const char* entry_identifier);
 Status RemoveBacking(const char* backing_identifier);
 
 Status ListBackings(char*** _backings);
-Status GetLatestBacking(char** _backing_identifier);
+Status GetLatestBacking(char** _backing_identifier);
+
+Status GetBackingDiskInfo(const char* backing_identifier, DiskInfo* _info);

src/disk.c

@@ -5,6 +5,7 @@
 #include <string.h>
 #include <errno.h>
 #include <unistd.h>
+#include <libgen.h>
 #include <sys/stat.h>
 #include <json-c/json.h>
 
@@ -233,9 +234,19 @@ Status GetDiskInfo(const char* path, DiskInfo* _info) {
 
 	json_object_put(root);
 
+	if (_info->backing_file != NULL) {
+		_info->backing_identifier = strdup(basename(_info->backing_file));
+		if (_info->backing_identifier == NULL) {
+			Log(LOG_LEVEL_ERROR, "Failed to duplicate the backing identifier (%s).", strerror(errno));
+			FreeDiskInfo(_info);
+			return FAILURE;
+		}
+	}
+
 	return SUCCESS;
 }
 
 void FreeDiskInfo(DiskInfo* info) {
 	free(info->backing_file);
-}
+	free(info->backing_identifier);
+}

src/disk.h

@@ -6,6 +6,7 @@ typedef struct {
 	uint64_t size;
 	uint64_t allocated;
 	char* backing_file;
+	char* backing_identifier;
 } DiskInfo;
 
 Status CreateRootDisk(const char* path, uint64_t disk_size);
@@ -15,4 +16,4 @@ Status TrimDisk(const char* path);
 Status RebaseDisk(const char* path, const char* backing_file);
 
 Status GetDiskInfo(const char* path, DiskInfo* _info);
-void FreeDiskInfo(DiskInfo* info);
+void FreeDiskInfo(DiskInfo* info);

src/entry.c

@@ -489,3 +489,19 @@ Status TrimEntryDisk(const char* entry_identifier) {
 
 	return status;
 }
+
+Status GetEntryDiskInfo(const char* entry_identifier, DiskInfo* _info) {
+	*_info = (DiskInfo){0};
+
+	// Get the disk path
+	char* entry_disk_path = NULL;
+	Status status = GetEntryDiskPath(entry_identifier, &entry_disk_path);
+	if (status != SUCCESS)
+		return status;
+
+	// Get the disk info
+	status = GetDiskInfo(entry_disk_path, _info);
+	free(entry_disk_path);
+
+	return status;
+}

src/entry.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include "utils.h"
+#include "disk.h"
 
 bool IsEntryIdentifierValid(const char* entry_identifier);
 
@@ -21,4 +22,6 @@ Status AddRootEntryDisk(const char* entry_identifier, uint64_t disk_size);
 Status AddBackedEntryDisk(const char* entry_identifier, const char* backing_identifier);
 Status RemoveEntryDisk(const char* entry_identifier);
 Status ResetEntryDisk(const char* entry_identifier, const char* backing_identifier);
-Status TrimEntryDisk(const char* entry_identifier);
+Status TrimEntryDisk(const char* entry_identifier);
+
+Status GetEntryDiskInfo(const char* entry_identifier, DiskInfo* _info);

src/sandbox.c

@@ -221,10 +221,21 @@ int CommandListEntries(int argc, char* argv[]) {
 		if (status != SUCCESS)
 			return EXIT_FAILURE;
 
-		if (has_disk)
-			fprintf(stdout, "%zu | %-*s | %s |\n", i, (int)max_length, entries[i], "Has disk");
-		else
-			fprintf(stdout, "%zu | %-*s | %s |\n", i, (int)max_length, entries[i], "No disk ");
+		if (has_disk) {
+			DiskInfo info;
+			status = GetEntryDiskInfo(entries[i], &info);
+			if (status != SUCCESS)
+				continue;
+
+			// Format the size
+			char* size_fmt;
+			status = FormatSize(info.allocated, &size_fmt);
+			if (status != SUCCESS)
+				continue;
+
+			fprintf(stdout, "%zu | %-*s | %-10s | %s%s\n", i, (int)max_length, entries[i], size_fmt, info.backing_identifier == NULL ? "No backing" : "Backed by ", info.backing_identifier == NULL ? "" : info.backing_identifier);
+		} else
+			fprintf(stdout, "%zu | %-*s | %s\n", i, (int)max_length, entries[i], "No disk ");
 	}
 
 	// Free the entries