Made some small adjustments

.clang-format

@@ -0,0 +1,14 @@
+---
+BasedOnStyle: LLVM
+AlignOperands: 'true'
+IndentWidth: '4'
+IndentWrappedFunctionNames: 'true'
+KeepEmptyLinesAtTheStartOfBlocks: 'false'
+TabWidth: '4'
+UseTab: Always
+ColumnLimit: '0'
+PointerAlignment: Left
+BreakConstructorInitializers: BeforeComma
+AccessModifierOffset: -4
+SortIncludes: 'false'
+SortUsingDeclarations: 'false'

Makefile

@@ -1,7 +1,7 @@
 # ---- ---- #
 
-CC = clang
+CC = gcc
-CF = -Wall -lkrb5 -lvirt -ljson-c -g
+CF = -Wall -lkrb5 -lvirt -ljson-c -lcrypto -g
 
 # ---- ---- #
 

src/backing.c

@@ -0,0 +1,221 @@
+#include "backing.h"
+
+#include "container.h"
+#include "disk.h"
+
+#include <md5.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/stat.h>
+
+result_t check_backing_identifier(const char* backing) {
+	// Check that the identifier is not null
+	if (backing == NULL)
+		return failure("Backing identifier cannot be null.");
+
+	// Check that the identifier is the length of a md5 hash
+	size_t length = strlen(backing);
+	if (length != MD5_DIGEST_STRING_LENGTH - 1) // -1 because the string is null-terminated
+		return failure("Backing identifier must be %d characters long.", MD5_DIGEST_STRING_LENGTH - 1);
+
+	// Check that the identifier only contains allowed characters
+	for (size_t i = 0; i < length; i++) {
+		char c = backing[i];
+		if (c >= 'a' && c <= 'f')
+			continue;
+		if (c >= '0' && c <= '9')
+			continue;
+
+		return failure("Backing identifier cannot contain the character '%c' at index %d.", c, i);
+	}
+
+	return success();
+}
+
+result_t check_backing_exists(const char* backing) {
+	// Get the backing path
+	char* path;
+	result_t result = get_backing_path(&path, backing);
+	if (result != success())
+		return result;
+
+	// Check that the backing exists
+	struct stat st;
+	errno = 0;
+	if (stat(path, &st) != 0) {
+		if (errno == ENOENT)
+			result = failure("Backing '%s' does not exist.", backing);
+		else
+			result = failure("Failed to check if backing '%s' exists (%s).", backing, strerror(errno));
+
+		free(path);
+		return result;
+	}
+
+	// Check that the backing is a file
+	if (!S_ISREG(st.st_mode)) {
+		result = failure("Backing '%s' is not a regular file.", backing);
+		free(path);
+		return result;
+	}
+
+	// Free the backing path
+	free(path);
+
+	return success();
+}
+
+result_t get_backing_pool_path(char** _path) {
+	return format(_path, "/var/lib/sandbox/backings");
+}
+
+result_t get_backing_path(char** _path, const char* backing) {
+	// Check the backing identifier
+	result_t result = check_backing_identifier(backing);
+	if (result != success())
+		return result;
+
+	// Get the backing pool path
+	char* pool_path;
+	result = get_backing_pool_path(&pool_path);
+	if (result != success())
+		return result;
+
+	// Format the backing path
+	result = format(_path, "%s/%s", pool_path, backing);
+
+	free(pool_path);
+	return result;
+}
+
+result_t get_backing_default_path(char** _path) {
+	// Get the backing pool path
+	char* pool_path;
+	result_t result = get_backing_pool_path(&pool_path);
+	if (result != success())
+		return result;
+
+	// Format the backing path
+	result = format(_path, "%s/default", pool_path);
+
+	free(pool_path);
+	return result;
+}
+
+result_t remove_backing(const char* backing) {
+	// Check that the backing exists
+	result_t result = check_backing_exists(backing);
+	if (result != success())
+		return result;
+
+	// Get the backing path
+	char* path;
+	result = get_backing_path(&path, backing);
+	if (result != success())
+		return result;
+
+	// Remove the backing
+	errno = 0;
+	remove(path);
+
+	// Check for errors during the removal
+	if (errno != 0) {
+		free(path);
+		return failure("Failed to remove backing '%s' (%s).", backing, strerror(errno));
+	}
+
+	free(path);
+	return success();
+}
+
+bool backing_filter(const char* file) {
+	// Check that a backing with the same name exists
+	return check_backing_exists(file) == success();
+}
+
+result_t list_backings(char*** _backings) {
+	// Get the backing pool path
+	char* pool_path;
+	result_t result = get_backing_pool_path(&pool_path);
+	if (result != success())
+		return result;
+
+	// List the backings
+	result = list_files(_backings, pool_path, &backing_filter);
+
+	free(pool_path);
+	return result;
+}
+
+result_t get_default_backing(char** _backing) {
+	// Get the backing default path
+	char* path;
+	result_t result = get_backing_default_path(&path);
+	if (result != success())
+		return result;
+
+	char* backing;
+
+	// Read the default backing
+	result = read_file(&backing, path);
+
+	free(path);
+
+	if (result != success())
+		return failure("No default backing configured.");
+
+	// Check that the backing is valid
+	result = check_backing_identifier(backing);
+	if (result != success()) {
+		free(backing);
+		return failure("Default backing '%s' is not a valid backing identifier.", backing);
+	}
+
+	// Check that the backing exists
+	result = check_backing_exists(backing);
+	if (result != success()) {
+		free(backing);
+		return failure("Default backing '%s' does not exist.", backing);
+	}
+
+	*_backing = backing;
+	return result;
+}
+
+result_t set_default_backing(const char* backing) {
+	// Get the backing default path
+	char* path;
+	result_t result = get_backing_default_path(&path);
+	if (result != success())
+		return result;
+
+	// If the backing is null, remove the default backing file
+	if (backing == NULL) {
+		errno = 0;
+		remove(path);
+		free(path);
+
+		if (errno == ENOENT)
+			return success();
+		else if (errno != 0)
+			return failure("Failed to remove the default backing file (%s).", strerror(errno));
+
+		return success();
+	} else {
+		// Check that the backing exists
+		result = check_backing_exists(backing);
+		if (result != success()) {
+			free(path);
+			return result;
+		}
+
+		// Write the default backing
+		result = write_file(path, backing);
+
+		free(path);
+		return result;
+	}
+}

src/backing.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include "utils.h"
+
+result_t check_backing_identifier(const char* backing);
+result_t check_backing_exists(const char* backing);
+
+result_t get_backing_pool_path(char** _path);
+result_t get_backing_path(char** _path, const char* backing);
+result_t get_backing_default_path(char** _path);
+
+result_t add_backing(const char* backing, const char* container);
+result_t remove_backing(const char* backing);
+
+bool backing_filter(const char* file);
+result_t list_backings(char*** _backings);
+
+result_t get_default_backing(char** _backing);
+result_t set_default_backing(const char* backing);

src/container.c

@@ -0,0 +1,222 @@
+#include "container.h"
+
+#include "disk.h"
+#include "backing.h"
+
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/stat.h>
+
+result_t check_container_identifier(const char* container) {
+	// Check that the container identifier is not null
+	if (container == NULL)
+		return failure("Container identifier cannot be null.");
+
+	// Check that the container identifier is not empty, nor too long
+	size_t length = strlen(container);
+	if (length == 0)
+		return failure("Container identifier cannot be empty.");
+	if (length > CONTAINER_IDENTIFIER_MAX_LENGTH)
+		return failure("Container identifier cannot be longer than %d characters.", CONTAINER_IDENTIFIER_MAX_LENGTH);
+
+	// Check that the container identifier only contains allowed characters
+	for (size_t i = 0; i < length; i++) {
+		char c = container[i];
+		if (c >= 'a' && c <= 'z')
+			continue;
+		if (c >= 'A' && c <= 'Z')
+			continue;
+		if (c >= '0' && c <= '9')
+			continue;
+		if ((c == '-' || c == '_' || c == '.') && i > 0) // Not at the beginning
+			continue;
+
+		return failure("Container identifier cannot contain the character '%c' at index %d.", c, i);
+	}
+
+	return success();
+}
+
+result_t check_container_exists(const char* container) {
+	// Get the container path
+	char* path;
+	result_t result = get_container_path(&path, container);
+	if (result != success())
+		return result;
+
+	// Check that the container exists
+	struct stat st;
+	errno = 0;
+	if (stat(path, &st) != 0) {
+		if (errno == ENOENT)
+			result = failure("Container '%s' does not exist.", container);
+		else
+			result = failure("Failed to check if container '%s' exists (%s).", container, strerror(errno));
+
+		free(path);
+		return result;
+	}
+
+	// Check that the container is a file
+	if (!S_ISREG(st.st_mode)) {
+		result = failure("Container '%s' is not a file.", container);
+		free(path);
+		return result;
+	}
+
+	free(path);
+	return success();
+}
+
+result_t get_container_pool_path(char** _path) {
+	return format(_path, "/var/lib/sandbox/containers");
+}
+
+result_t get_container_path(char** _path, const char* container) {
+	// Check the container identifier
+	result_t result = check_container_identifier(container);
+	if (result != success())
+		return result;
+
+	// Get the container pool path
+	char* pool_path;
+	result = get_container_pool_path(&pool_path);
+	if (result != success())
+		return result;
+
+	// Format the container path
+	result = format(_path, "%s/%s", pool_path, container);
+
+	free(pool_path);
+	return result;
+}
+
+result_t add_root_container(const char* container, uint64_t size) {
+	// Check that the container does not already exist
+	result_t result = check_container_exists(container);
+	if (result == success())
+		return failure("Container '%s' already exists.", container);
+
+	// Get the container path
+	char* path;
+	result = get_container_path(&path, container);
+	if (result != success())
+		return result;
+
+	// Create the root container
+	result = create_root_disk(path, size);
+
+	free(path);
+	return result;
+}
+
+result_t add_backed_container(const char* container, const char* backing) {
+	// Check that the container does not already exist
+	result_t result = check_container_exists(container);
+	if (result == success())
+		return failure("Container '%s' already exists.", container);
+
+	// Get the container path
+	char* path;
+	result = get_container_path(&path, container);
+	if (result != success())
+		return result;
+
+	// Get the backing path
+	char* backing_path;
+	result = get_backing_path(&backing_path, backing);
+	if (result != success()) {
+		free(path);
+		return result;
+	}
+
+	// Create the backed container
+	result = create_backed_disk(path, backing_path);
+
+	free(backing_path);
+	free(path);
+	return result;
+}
+
+result_t remove_container(const char* container) {
+	// Check that the container exists
+	result_t result = check_container_exists(container);
+	if (result != success())
+		return result;
+
+	// Get the container path
+	char* path;
+	result = get_container_path(&path, container);
+	if (result != success())
+		return result;
+
+	// Delete the container
+	errno = 0;
+	remove(path);
+
+	free(path);
+
+	if (errno != 0)
+		return failure("Failed to remove container '%s' (%s).", container, strerror(errno));
+
+	return success();
+}
+
+result_t trim_container(const char* container) {
+	// Check that the container exists
+	result_t result = check_container_exists(container);
+	if (result != success())
+		return result;
+
+	// Get the container path
+	char* path;
+	result = get_container_path(&path, container);
+	if (result != success())
+		return result;
+
+	// Trim the container
+	result = trim_disk(path);
+
+	free(path);
+	return result;
+}
+
+result_t reset_container(const char* container) {
+	// Check that the container exists
+	result_t result = check_container_exists(container);
+	if (result != success())
+		return result;
+
+	// Get the container path
+	char* path;
+	result = get_container_path(&path, container);
+	if (result != success())
+		return result;
+
+	// Reset the container
+	result = reset_disk(path);
+
+	free(path);
+	return result;
+}
+
+bool container_filter(const char* file) {
+	// Check that a container with the same name exists
+	return check_container_exists(file) == success();
+}
+
+result_t list_containers(char*** _containers) {
+	// Get the container pool path
+	char* pool_path;
+	result_t result = get_container_pool_path(&pool_path);
+	if (result != success())
+		return result;
+
+	// List the files in the container pool
+	result = list_files(_containers, pool_path, container_filter);
+
+	free(pool_path);
+	return result;
+}

src/container.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include "utils.h"
+
+#define CONTAINER_IDENTIFIER_MAX_LENGTH 64
+
+result_t check_container_identifier(const char* container);
+result_t check_container_exists(const char* container);
+
+result_t get_container_pool_path(char** _path);
+result_t get_container_path(char** _path, const char* container);
+
+result_t add_root_container(const char* container, uint64_t size);
+result_t add_backed_container(const char* container, const char* backing);
+result_t remove_container(const char* container);
+
+result_t trim_container(const char* container);
+result_t reset_container(const char* container);
+
+bool container_filter(const char* file);
+result_t list_containers(char*** _containers);

src/disk.h

@@ -5,14 +5,15 @@
 typedef struct {
 	uint64_t size;
 	uint64_t allocated;
-	char* backing_file_path;
+	char* backing_path;
-	char* backing_identifier;
+} disk_info_t;
-} DiskInfo;
 
-Result CreateRootDisk(const char* disk_path, uint64_t size);
+result_t create_root_disk(const char* path, uint64_t size);
-Result CreateBackedDisk(const char* disk_path, const char* backing_disk_path);
+result_t create_backed_disk(const char* path, const char* backing_path);
-Result TrimDisk(const char* disk_path);
-Result RebackDisk(const char* disk_path, const char* backing_disk_path);
 
-Result GetDiskInfo(const char* disk_path, DiskInfo* _info);
+result_t trim_disk(const char* path);
-Result FreeDiskInfo(DiskInfo* info);
+result_t reset_disk(const char* path);
+result_t reback_disk(const char* path, const char* backing_path);
+
+result_t get_disk_info(disk_info_t* _info, const char* path);
+void free_disk_info(disk_info_t* _info);

src/image.c

@@ -1,415 +0,0 @@
-#include "image.h"
-
-#include "disk.h"
-#include "template.h"
-
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <unistd.h>
-#include <sys/stat.h>
-#include <dirent.h>
-
-Result IsImageIdentifierValid(const char* image_id, bool* _valid) {
-	*_valid = false;
-
-	// Check that the image identifier is not NULL
-	if (image_id == NULL)
-		return SUCCESS;
-
-	// Check that the image identifier is not empty or too long
-	size_t length = strlen(image_id);
-	if (length == 0 || length > MAX_IMAGE_ID_LENGTH)
-		return SUCCESS;
-
-	// Check that the image identifier contains characters that are allowed as a user name
-	for (size_t i = 0; i < length; i++) {
-		char c = image_id[i];
-		if (c >= 'a' && c <= 'z')
-			continue;
-		if (c >= 'A' && c <= 'Z')
-			continue;
-		if (c >= '0' && c <= '9')
-			continue;
-		if (c == '_' || c == '-' || c == '.')
-			continue;
-
-		return SUCCESS;
-	}
-
-	// Check that the image identifier is not a reserved name
-	if (strcmp(image_id, ".") == 0 || strcmp(image_id, "..") == 0)
-		return SUCCESS;
-
-	*_valid = true;
-	return SUCCESS;
-}
-
-Result GetImagePoolPath(char** _path) {
-	return Format(_path, "/var/lib/sandbox/images");
-}
-
-Result GetImageDirectoryPath(const char* image_id, char** _path) {
-	// Check that the image identifier is valid
-	if (IsImageIdentifierValid(image_id, NULL) != SUCCESS)
-		return FAILURE;
-
-	// Get the path to the image pool
-	char* pool_path;
-	if (GetImagePoolPath(&pool_path) != SUCCESS)
-		return FAILURE;
-
-	// Format the image directory path
-	Result result = Format(_path, "%s/%s", pool_path, image_id);
-
-	free(pool_path);
-	return result;
-}
-
-Result GetImageDiskPath(const char* image_id, char** _path) {
-	// Get the path to the image directory
-	char* directory_path;
-	if (GetImageDirectoryPath(image_id, &directory_path) != SUCCESS)
-		return FAILURE;
-
-	// Format the image disk path
-	Result result = Format(_path, "%s/disk", directory_path);
-
-	free(directory_path);
-	return result;
-}
-
-Result DoesImageDirectoryExist(const char* image_id, bool* _exists) {
-	// Get the path to the image directory
-	char* directory_path;
-	if (GetImageDirectoryPath(image_id, &directory_path) != SUCCESS)
-		return FAILURE;
-
-	// Check if the image directory exists
-	struct stat st;
-	*_exists = stat(directory_path, &st) == 0 && S_ISDIR(st.st_mode);
-
-	free(directory_path);
-	return SUCCESS;
-}
-
-Result DoesImageDiskExist(const char* image_id, bool* _exists) {
-	// Get the path to the image disk
-	char* disk_path;
-	if (GetImageDiskPath(image_id, &disk_path) != SUCCESS)
-		return FAILURE;
-
-	// Check if the image disk exists
-	struct stat st;
-	*_exists = stat(disk_path, &st) == 0 && S_ISREG(st.st_mode);
-
-	free(disk_path);
-	return SUCCESS;
-}
-
-Result AddImage(const char* image_id) {
-	// Check if the image directory already exists
-	bool directory_exists;
-	if (DoesImageDirectoryExist(image_id, &directory_exists) != SUCCESS)
-		return FAILURE;
-
-	if (directory_exists) {
-		Log(LOG_LEVEL_ERROR, "Image '%s' already exists", image_id);
-		return FAILURE;
-	}
-
-	// Get the path to the image directory
-	char* directory_path;
-	if (GetImageDirectoryPath(image_id, &directory_path) != SUCCESS)
-		return FAILURE;
-
-	// Create the image directory
-	Result result = mkdir(directory_path, 0755) == 0 ? SUCCESS : FAILURE;
-
-	if (result == FAILURE)
-		Log(LOG_LEVEL_ERROR, "Failed to create image '%s' (%s)", directory_path, strerror(errno));
-
-	free(directory_path);
-	return result;
-}
-
-Result RemoveImage(const char* image_id) {
-	// Check if the image directory exists
-	bool directory_exists;
-	if (DoesImageDirectoryExist(image_id, &directory_exists) != SUCCESS)
-		return FAILURE;
-
-	if (!directory_exists) {
-		Log(LOG_LEVEL_ERROR, "Image '%s' does not exist", image_id);
-		return FAILURE;
-	}
-
-	// Check if there is a disk for the image and remove it if it exists
-	bool disk_exists;
-	if (DoesImageDiskExist(image_id, &disk_exists) != SUCCESS)
-		return FAILURE;
-	if (disk_exists)
-		RemoveImageDisk(image_id);
-
-	// Get the path to the image directory
-	char* directory_path;
-	if (GetImageDirectoryPath(image_id, &directory_path) != SUCCESS)
-		return FAILURE;
-
-	// Remove the image directory
-	Result result = rmdir(directory_path) == 0 ? SUCCESS : FAILURE;
-
-	if (result == FAILURE)
-		Log(LOG_LEVEL_ERROR, "Failed to remove image '%s' (%s)", directory_path, strerror(errno));
-
-	free(directory_path);
-	return result;
-}
-
-Result ListImages(char*** _image_ids) {
-	// Get the path to the image pool
-	char* pool_path;
-	if (GetImagePoolPath(&pool_path) != SUCCESS)
-		return FAILURE;
-
-	// Open the image pool directory
-	DIR* pool_dir = opendir(pool_path);
-	if (pool_dir == NULL) {
-		Log(LOG_LEVEL_ERROR, "Failed to open image pool directory '%s' (%s)", pool_path, strerror(errno));
-		free(pool_path);
-		return FAILURE;
-	}
-	free(pool_path);
-
-	// Allocate an initial array, one element is reserved for the NULL terminator
-	*_image_ids = malloc(sizeof(char*));
-	if (*_image_ids == NULL) {
-		Log(LOG_LEVEL_ERROR, "Failed to allocate memory for image identifiers");
-		closedir(pool_dir);
-		return FAILURE;
-	}
-	(*_image_ids)[0] = NULL;
-
-	// Iterate over the image pool directory
-	int count = 0;
-	struct dirent* entry;
-	while ((entry = readdir(pool_dir)) != NULL) {
-		// Skip the current and parent directory
-		if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0)
-			continue;
-
-		// Check that the entry actually exists
-		bool exists;
-		if (DoesImageDirectoryExist(entry->d_name, &exists) != SUCCESS || !exists)
-			continue;
-
-		// Allocate a new element in the array
-		char** new_image_ids = realloc(*_image_ids, (count + 2) * sizeof(char*)); // One element is reserved for the NULL terminator
-		if (new_image_ids == NULL) {
-			Log(LOG_LEVEL_ERROR, "Failed to allocate memory for image identifiers");
-			closedir(pool_dir);
-			for (int i = 0; i < count; i++)
-				free((*_image_ids)[i]);
-			free(*_image_ids);
-			return FAILURE;
-		}
-		*_image_ids = new_image_ids;
-
-		// Copy the entry name into the array
-		if (Duplicate(entry->d_name, &(*_image_ids)[count]) != SUCCESS) {
-			Log(LOG_LEVEL_ERROR, "Failed to allocate memory for image identifier");
-			closedir(pool_dir);
-			for (int i = 0; i < count; i++)
-				free((*_image_ids)[i]);
-			free(*_image_ids);
-			return FAILURE;
-		}
-
-		// Null-terminate the array
-		(*_image_ids)[count + 1] = NULL;
-
-		// Increment the count
-		count++;
-	}
-
-	// Close the image pool directory
-	closedir(pool_dir);
-
-	return SUCCESS;
-}
-
-Result ClearImages(void) {
-	// Get the image identifiers
-	char** image_ids;
-	if (ListImages(&image_ids) != SUCCESS)
-		return FAILURE;
-
-	// Remove each image
-	for (int i = 0; image_ids[i] != NULL; i++)
-		RemoveImage(image_ids[i]);
-
-	// Free the image identifiers
-	for (int i = 0; image_ids[i] != NULL; i++)
-		free(image_ids[i]);
-	free(image_ids);
-
-	return SUCCESS;
-}
-
-Result AddRootImageDisk(const char* image_id, uint64_t size) {
-	// Check that the image directory exists
-	bool directory_exists;
-	if (DoesImageDirectoryExist(image_id, &directory_exists) != SUCCESS)
-		return FAILURE;
-
-	if (!directory_exists) {
-		Log(LOG_LEVEL_ERROR, "Image '%s' does not exist", image_id);
-		return FAILURE;
-	}
-
-	// Check that the image disk does not exist
-	bool disk_exists;
-	if (DoesImageDiskExist(image_id, &disk_exists) != SUCCESS)
-		return FAILURE;
-
-	if (disk_exists) {
-		Log(LOG_LEVEL_ERROR, "Disk for image '%s' already exists", image_id);
-		return FAILURE;
-	}
-
-	// Get the path to the image disk
-	char* disk_path;
-	if (GetImageDiskPath(image_id, &disk_path) != SUCCESS)
-		return FAILURE;
-
-	// Create the root disk
-	Result result = CreateRootDisk(disk_path, size);
-
-	free(disk_path);
-
-	return result;
-}
-
-Result AddTemplatedImageDisk(const char* image_id, const char* template_id) {
-	// Check that the image directory exists
-	bool directory_exists;
-	if (DoesImageDirectoryExist(image_id, &directory_exists) != SUCCESS)
-		return FAILURE;
-
-	if (!directory_exists) {
-		Log(LOG_LEVEL_ERROR, "Image '%s' does not exist", image_id);
-		return FAILURE;
-	}
-
-	// Check that the image disk does not exist
-	bool disk_exists;
-	if (DoesImageDiskExist(image_id, &disk_exists) != SUCCESS)
-		return FAILURE;
-
-	if (disk_exists) {
-		Log(LOG_LEVEL_ERROR, "Disk for image '%s' already exists", image_id);
-		return FAILURE;
-	}
-
-	// Check that the template exists
-	bool template_exists;
-	if (DoesTemplateExist(template_id, &template_exists) != SUCCESS)
-		return FAILURE;
-
-	if (!template_exists) {
-		Log(LOG_LEVEL_ERROR, "Template '%s' does not exist", template_id);
-		return FAILURE;
-	}
-
-	// Get the path to the template disk
-	char* template_disk_path;
-	if (GetTemplateDiskPath(template_id, &template_disk_path) != SUCCESS)
-		return FAILURE;
-
-	// Get the path to the image disk
-	char* disk_path;
-	if (GetImageDiskPath(image_id, &disk_path) != SUCCESS) {
-		free(template_disk_path);
-		return FAILURE;
-	}
-
-	// Create the templated disk
-	Result result = CreateBackedDisk(disk_path, template_disk_path);
-
-	free(template_disk_path);
-	free(disk_path);
-	return result;
-}
-
-Result RemoveImageDisk(const char* image_id) {
-	// Check that the image directory exists
-	bool directory_exists;
-	if (DoesImageDirectoryExist(image_id, &directory_exists) != SUCCESS)
-		return FAILURE;
-
-	if (!directory_exists) {
-		Log(LOG_LEVEL_ERROR, "Image '%s' does not exist", image_id);
-		return FAILURE;
-	}
-
-	// Check that the image disk exists
-	bool disk_exists;
-	if (DoesImageDiskExist(image_id, &disk_exists) != SUCCESS)
-		return FAILURE;
-
-	if (!disk_exists) {
-		Log(LOG_LEVEL_ERROR, "Disk for image '%s' does not exist", image_id);
-		return FAILURE;
-	}
-
-	// Get the path to the image disk
-	char* disk_path;
-	if (GetImageDiskPath(image_id, &disk_path) != SUCCESS)
-		return FAILURE;
-
-	// Remove the image disk
-	int result = unlink(disk_path);
-
-	free(disk_path);
-
-	if (result != 0) {
-		Log(LOG_LEVEL_ERROR, "Failed to remove disk for image '%s' (%s)", image_id, strerror(errno));
-		return FAILURE;
-	}
-
-	return SUCCESS;
-}
-
-Result TrimImageDisk(const char* image_id) {
-	// Check that the image directory exists
-	bool directory_exists;
-	if (DoesImageDirectoryExist(image_id, &directory_exists) != SUCCESS)
-		return FAILURE;
-
-	if (!directory_exists) {
-		Log(LOG_LEVEL_ERROR, "Image '%s' does not exist", image_id);
-		return FAILURE;
-	}
-
-	// Check that the image disk exists
-	bool disk_exists;
-	if (DoesImageDiskExist(image_id, &disk_exists) != SUCCESS)
-		return FAILURE;
-
-	if (!disk_exists) {
-		Log(LOG_LEVEL_ERROR, "Disk for image '%s' does not exist", image_id);
-		return FAILURE;
-	}
-
-	// Get the path to the image disk
-	char* disk_path;
-	if (GetImageDiskPath(image_id, &disk_path) != SUCCESS)
-		return FAILURE;
-
-	// Trim the image disk
-	Result result = TrimDisk(disk_path);
-
-	free(disk_path);
-
-	return result;
-}

src/image.h

@@ -1,24 +0,0 @@
-#pragma once
-
-#include "utils.h"
-
-#define MAX_IMAGE_ID_LENGTH 64
-
-Result IsImageIdentifierValid(const char* image_id, bool* _valid);
-
-Result GetImagePoolPath(char** _path);
-Result GetImageDirectoryPath(const char* image_id, char** _path);
-Result GetImageDiskPath(const char* image_id, char** _path);
-
-Result DoesImageDirectoryExist(const char* image_id, bool* _exists);
-Result DoesImageDiskExist(const char* image_id, bool* _exists);
-
-Result AddImage(const char* image_id);
-Result RemoveImage(const char* image_id);
-Result ListImages(char*** _image_ids);
-Result ClearImages(void);
-
-Result AddRootImageDisk(const char* image_id, uint64_t size);
-Result AddTemplatedImageDisk(const char* image_id, const char* template_id);
-Result RemoveImageDisk(const char* image_id);
-Result TrimImageDisk(const char* image_id);

src/sandbox.c

@@ -2,268 +2,37 @@
 
 #include "utils.h"
 
+#include <stdio.h>
 #include <stdbool.h>
 #include <pwd.h>
 #include <unistd.h>
 
-Command COMMANDS[] = {
-	{
-		command_help,
-		{{"help", NULL}, NULL},
-		NULL,
-		{{"command", "TODO: Add description.", false}, NULL},
-		"TODO: Add description.",
-		"TODO: Add details."
-	},
-	{
-		command_version,
-		{{"version", NULL}, NULL},
-		NULL,
-		NULL,
-		"TODO: Add description.",
-		"TODO: Add details."
-	},
-	{
-		command_config,
-		{{"config", NULL}, NULL},
-		NULL,
-		NULL,
-		"TODO: Add description.",
-		"TODO: Add details."
-	},
-	{
-		command_container_add,
-		{{"container", "add", NULL}, NULL},
-		{
-			{
-				{"-r", "--root", NULL},
-				{{"size", "TODO: Add description.", true}, NULL},
-				"TODO: Add description."
-			},
-			{
-				{"-i", "--image", NULL},
-				{{"image", "TODO: Add description.", true}, NULL},
-				"TODO: Add description."
-			},
-			NULL
-		},
-		{{"container", "TODO: Add description.", true}, NULL},
-		"TODO: Add description.",
-		"TODO: Add details."
-	},
-	{
-		command_container_remove,
-		{{"container", "rm", NULL}, {"container", "remove", NULL}, {"container", "del", NULL}, {"container", "delete", NULL}, NULL},
-		NULL,
-		{{"container", "TODO: Add description.", true}, NULL},
-		"TODO: Add description.",
-		"TODO: Add details."
-	},
-	{
-		command_container_reset,
-		{{"container", "reset", NULL}, NULL},
-		NULL,
-		{{"container", "TODO: Add description.", true}, NULL},
-		"Resets the container.",
-		"TODO: Add details."
-	},
-	{
-		command_container_trim,
-		{{"container", "trim", NULL}, NULL},
-		NULL,
-		{{"container", "TODO: Add description.", true}, NULL},
-		"TODO: Add description.",
-		"TODO: Add details."
-	},
-	{
-		command_container_info,
-		{{"container", "info", NULL}, NULL},
-		NULL,
-		{{"container", "TODO: Add description.", true}, NULL},
-		"TODO: Add description.",
-		"TODO: Add details."
-	},
-	{
-		command_container_list,
-		{{"container", "ls", NULL}, {"container", "list", NULL}, NULL},
-		NULL,
-		NULL,
-		"TODO: Add description.",
-		"TODO: Add details."
-	},
-	{
-		command_container_wipe,
-		{{"container", "wipe", NULL}, NULL},
-		NULL,
-		NULL,
-		"TODO: Add description.",
-		"TODO: Add details."
-	},
-	{
-		command_container_start,
-		{{"container", "start", NULL}, NULL},
-		{
-			{
-				{"-p", "--no-pci", NULL},
-				NULL,
-				"TODO: Add description."
-			},
-			{
-				{"-v", "--vnc", NULL},
-				{
-					{"port", "TODO: Add description.", true},
-					{"password", "TODO: Add description.", true},
-					NULL
-				},
-				"TODO: Add description."
-			},
-			{
-				{"-i", "--iso", NULL},
-				{
-					{"iso", "TODO: Add description.", true},
-					NULL
-				},
-				"TODO: Add description."
-			},
-			NULL
-		},
-		{{"container", "TODO: Add description.", true}, NULL},
-		"TODO: Add description.",
-		"TODO: Add details."
-	},
-	{
-		command_container_stop,
-		{{"container", "stop", NULL}, NULL},
-		{
-			{
-				{"-f", "--force", NULL},
-				NULL,
-				"TODO: Add description."
-			},
-			{
-				{"-t", "--timeout", NULL},
-				{
-					{"timeout", "TODO: Add description.", true},
-					NULL
-				},
-				"TODO: Add description."
-			},
-			NULL
-		},
-		{{"container", "TODO: Add description.", true}, NULL},
-		"TODO: Add description.",
-		"TODO: Add details."
-	},
-	{
-		command_container_ps,
-		{{"container", "ps", NULL}, NULL},
-		NULL,
-		NULL,
-		"TODO: Add description.",
-		"TODO: Add details."
-	},
-	{
-		command_image_sync,
-		{{"image", "sync", NULL}, NULL},
-		NULL,
-		NULL,
-		"TODO: Add description.",
-		"TODO: Add details."
-	},
-	{
-		command_image_add,
-		{{"image", "add", NULL}, NULL},
-		NULL,
-		{
-			{"container", "The name of the container to add.", true},
-			NULL
-		},
-		"TODO: Add details.",
-		"TODO: Add details."
-	},
-	{
-		command_image_import,
-		{{"image", "import", NULL}, NULL},
-		NULL,
-		{
-			{"file", "TODO: Add description.", true},
-			NULL
-		},
-		"TODO: Add description.",
-		"TODO: Add details."
-	},
-	{
-		command_image_remove,
-		{{"image", "rm", NULL}, {"image", "remove", NULL}, NULL},
-		NULL,
-		{{"image", "TODO: Add description.", true}, NULL},
-		"TODO: Add description.",
-		"TODO: Add details."
-	},
-	{
-		command_image_default,
-		{{"image", "default", NULL}, NULL},
-		NULL,
-		{{"image", "TODO: Add description.", false}, NULL},
-		"TODO: Add description.",
-		"TODO: Add details."
-	},
-	{
-		command_image_list,
-		{{"image", "ls", NULL}, {"image", "list", NULL}, NULL},
-		NULL,
-		NULL,
-		"TODO: Add description.",
-		"TODO: Add details."
-	}
-};
-
 int main(int argc, char** argv) {
 	// Ensure the sandbox user exists
 	struct passwd* pw = getpwnam(SANDBOX_USER);
 	if (pw == NULL) {
-		Log(LOG_LEVEL_ERROR, "User '%s' does not exist. Please check that the program is installed correctly.", SANDBOX_USER);
+		fprintf(stderr, "User '%s' does not exist. Please check that the program is installed correctly.\n", SANDBOX_USER);
 		return EXIT_FAILURE;
 	}
 
 	// Check that the program is either run as root or as the sandbox user
 	if (geteuid() != 0 && geteuid() != pw->pw_uid) {
-		Log(LOG_LEVEL_ERROR, "This program must be run as root or as the user '%s'.", SANDBOX_USER);
+		fprintf(stderr, "This program must be run as root or as the user '%s'.\n", SANDBOX_USER);
 		return EXIT_FAILURE;
 	}
 
 	// If the program is run as root, switch to the sandbox user
 	if (geteuid() == 0) {
 		if (setregid(pw->pw_gid, pw->pw_gid) != 0) {
-			Log(LOG_LEVEL_ERROR, "Failed to switch to the group '%s'.", pw->pw_name);
+			fprintf(stderr, "Failed to switch to the group '%s'.\n", pw->pw_name);
 			return EXIT_FAILURE;
 		}
 
 		if (setreuid(pw->pw_uid, pw->pw_uid) != 0) {
-			Log(LOG_LEVEL_ERROR, "Failed to switch to the user '%s'.", pw->pw_name);
+			fprintf(stderr, "Failed to switch to the user '%s'.\n", pw->pw_name);
 			return EXIT_FAILURE;
 		}
 	}
 
 	// TODO: Parse commands from the command line
-}
+}
-
-int command_help(int argc, char** argv) { return EXIT_SUCCESS; }
-int command_version(int argc, char** argv) { return EXIT_SUCCESS; }
-int command_config(int argc, char** argv) { return EXIT_SUCCESS; }
-int command_container_add(int argc, char** argv) { return EXIT_SUCCESS; }
-int command_container_remove(int argc, char** argv) { return EXIT_SUCCESS; }
-int command_container_reset(int argc, char** argv) { return EXIT_SUCCESS; }
-int command_container_trim(int argc, char** argv) { return EXIT_SUCCESS; }
-int command_container_info(int argc, char** argv) { return EXIT_SUCCESS; }
-int command_container_list(int argc, char** argv) { return EXIT_SUCCESS; }
-int command_container_wipe(int argc, char** argv) { return EXIT_SUCCESS; }
-int command_container_start(int argc, char** argv) { return EXIT_SUCCESS; }
-int command_container_stop(int argc, char** argv) { return EXIT_SUCCESS; }
-int command_container_ps(int argc, char** argv) { return EXIT_SUCCESS; }
-int command_image_sync(int argc, char** argv) { return EXIT_SUCCESS; }
-int command_image_add(int argc, char** argv) { return EXIT_SUCCESS; }
-int command_image_import(int argc, char** argv) { return EXIT_SUCCESS; }
-int command_image_remove(int argc, char** argv) { return EXIT_SUCCESS; }
-int command_image_default(int argc, char** argv) { return EXIT_SUCCESS; }
-int command_image_list(int argc, char** argv) { return EXIT_SUCCESS; }

src/sandbox.h

@@ -2,28 +2,7 @@
 
 #include <stdbool.h>
 
-#define SANDBOX_VERSION "0.1.2"
+#define SANDBOX_VERSION "0.1.4"
 #define SANDBOX_USER "sandbox"
 
-typedef struct {
-	const char* name;
-	const char* description;
-	const bool required;
-} Argument;
-
-typedef struct {
-	const char** aliases;
-	const Argument* arguments;
-	const char* description;
-} Option;
-
-typedef struct {
-	int (*handler)(int argc, char* argv[]);
-	const char*** aliases;
-	const Option* options;
-	const Argument* arguments;
-	const char* description;
-	const char* details;
-} Command;
-
 int main(int argc, char** argv);

src/template.c

@@ -1,353 +0,0 @@
-#include "template.h"
-
-#include "image.h"
-#include "disk.h"
-
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <unistd.h>
-#include <dirent.h>
-#include <libgen.h>
-#include <sys/stat.h>
-
-Result IsTemplateIdentifierValid(const char* template_id, bool* _valid) {
-	*_valid = false;
-
-	// Check that the template identifier is not NULL
-	if (template_id == NULL)
-		return SUCCESS;
-
-	// Check that the template identifier is not empty or too long
-	size_t length = strlen(template_id);
-	if (length == 0 || length > MAX_TEMPLATE_ID_LENGTH)
-		return SUCCESS;
-
-	// Check that the template identifier only contains allowed characters
-	for (size_t i = 0; i < length; i++) {
-		char c = template_id[i];
-		if (c >= 'a' && c <= 'z')
-			continue;
-		if (c >= 'A' && c <= 'Z')
-			continue;
-		if (c >= '0' && c <= '9')
-			continue;
-		if (c == '_' || c == '-' || c == '.' || c == ' ')
-			continue;
-
-		return SUCCESS;
-	}
-
-	// Check that the template identifier is not a reserved name
-	if (strcmp(template_id, ".") == 0 || strcmp(template_id, "..") == 0)
-		return SUCCESS;
-
-	// Check that the template identifier starts with a number (the order)
-	if (template_id[0] < '0' || template_id[0] > '9')
-		return SUCCESS;
-
-	*_valid = true;
-	return SUCCESS;
-}
-
-Result GetTemplateIdentifierOrder(const char* template_id, uint64_t* _order) {
-	// Check that the template identifier is valid
-	bool valid;
-	if (IsTemplateIdentifierValid(template_id, &valid) != SUCCESS || !valid)
-		return FAILURE;
-
-	// Get the order from the template identifier
-	*_order = strtoull(template_id, NULL, 10);
-	return SUCCESS;
-}
-
-Result GetTemplateIdentifierDescription(const char* template_id, char** _description) {
-	// Check that the template identifier is valid
-	bool valid;
-	if (IsTemplateIdentifierValid(template_id, &valid) != SUCCESS || !valid)
-		return FAILURE;
-
-	// Get the length of the order
-	size_t length = 0;
-	while (template_id[length] >= '0' && template_id[length] <= '9')
-		length++;
-
-	// Get the substring after the order
-	return Substring(template_id, length, strlen(template_id), _description);
-}
-
-Result CreateTemplateIdentifier(uint64_t order, const char* template_description, char** _template_id) {
-	// Check that the description does not start with a number
-	if (template_description[0] >= '0' && template_description[0] <= '9')
-		return FAILURE;
-
-	// Format the template identifier
-	if (Format(_template_id, "%llu%s", order, template_description) != SUCCESS)
-		return FAILURE;
-
-	// Check that the template identifier is valid
-	bool valid;
-	return IsTemplateIdentifierValid(*_template_id, &valid) == SUCCESS && valid ? SUCCESS : FAILURE;
-}
-
-Result GetTemplatePoolPath(char** _path) {
-	return Format(_path, "/var/lib/sandbox/templates");
-}
-
-Result GetTemplateDiskPath(const char* template_id, char** _path) {
-	// Check that the template identifier is valid
-	bool valid;
-	if (IsTemplateIdentifierValid(template_id, &valid) != SUCCESS || !valid)
-		return FAILURE;
-
-	// Get the path to the template pool
-	char* pool_path;
-	if (GetTemplatePoolPath(&pool_path) != SUCCESS)
-		return FAILURE;
-
-	// Format the template disk path
-	Result result = Format(_path, "%s/%s", pool_path, template_id);
-
-	free(pool_path);
-	return result;
-}
-
-Result DoesTemplateExist(const char* template_id, bool* _exists) {
-	// Get the path to the template disk
-	char* disk_path;
-	if (GetTemplateDiskPath(template_id, &disk_path) != SUCCESS)
-		return FAILURE;
-
-	// Check if the template disk exists
-	struct stat st;
-	*_exists = stat(disk_path, &st) == 0 && S_ISDIR(st.st_mode);
-
-	free(disk_path);
-	return SUCCESS;
-}
-
-Result AddTemplate(const char* template_id, const char* image_id) {
-	// Check that the template does not already exist
-	bool exists;
-	if (DoesTemplateExist(template_id, &exists) != SUCCESS)
-		return FAILURE;
-
-	if (exists) {
-		Log(LOG_LEVEL_ERROR, "Template '%s' already exists.", template_id);
-		return FAILURE;
-	}
-
-	// Check that the image exists
-	bool image_exists;
-	if (DoesImageDiskExist(image_id, &image_exists) != SUCCESS)
-		return FAILURE;
-
-	if (!image_exists) {
-		Log(LOG_LEVEL_ERROR, "Image '%s' does not exist.", image_id);
-		return FAILURE;
-	}
-
-	// Check that the image has a disk
-	bool image_has_disk;
-	if (DoesImageDiskExist(image_id, &image_has_disk) != SUCCESS)
-		return FAILURE;
-
-	if (!image_has_disk) {
-		Log(LOG_LEVEL_ERROR, "Image '%s' does not have a disk.", image_id);
-		return FAILURE;
-	}
-
-	// Get the path of the image disk
-	char* image_disk_path;
-	if (GetImageDiskPath(image_id, &image_disk_path) != SUCCESS)
-		return FAILURE;
-
-	// Get information about the image disk
-	DiskInfo image_disk_info;
-	if (GetDiskInfo(image_disk_path, &image_disk_info) != SUCCESS) {
-		free(image_disk_path);
-		return FAILURE;
-	}
-
-	// If the image disk has a backing, check that the backing is an existing template
-	if (image_disk_info.backing_identifier != NULL) {
-		bool backing_exists;
-		if (DoesTemplateExist(image_disk_info.backing_identifier, &backing_exists) != SUCCESS) {
-			free(image_disk_path);
-			FreeDiskInfo(&image_disk_info);
-			return FAILURE;
-		}
-
-		if (!backing_exists) {
-			Log(LOG_LEVEL_ERROR, "Backing template '%s' of image '%s' does not exist.", image_disk_info.backing_identifier, image_id);
-			free(image_disk_path);
-			FreeDiskInfo(&image_disk_info);
-			return FAILURE;
-		}
-	}
-
-	// Get the path to the template disk
-	char* template_disk_path;
-	if (GetTemplateDiskPath(template_id, &template_disk_path) != SUCCESS) {
-		free(image_disk_path);
-		FreeDiskInfo(&image_disk_info);
-		return FAILURE;
-	}
-
-	// Copy the image disk to the template disk
-	Result result = CopyFile(image_disk_path, template_disk_path);
-
-	free(image_disk_path);
-
-	if (result != SUCCESS) {
-		free(template_disk_path);
-		FreeDiskInfo(&image_disk_info);
-		return FAILURE;
-	}
-
-	// If the image disk has a backing, reback the template disk to be relative
-	if (image_disk_info.backing_identifier != NULL)
-		if (RebackDisk(template_disk_path, image_disk_info.backing_identifier) != SUCCESS) {
-			unlink(template_disk_path);
-			free(template_disk_path);
-			FreeDiskInfo(&image_disk_info);
-			return FAILURE;
-		}
-
-	// Free the template disk path and image disk info
-	free(template_disk_path);
-	FreeDiskInfo(&image_disk_info);
-
-	// Return success
-	return SUCCESS;
-}
-
-Result RemoveTemplate(const char* template_id) {
-	// Check that the template exists
-	bool exists;
-	if (DoesTemplateExist(template_id, &exists) != SUCCESS)
-		return FAILURE;
-
-	if (!exists) {
-		Log(LOG_LEVEL_ERROR, "Template '%s' does not exist.", template_id);
-		return FAILURE;
-	}
-
-	// Get the path to the template disk
-	char* disk_path;
-	if (GetTemplateDiskPath(template_id, &disk_path) != SUCCESS)
-		return FAILURE;
-
-	// Remove the template disk
-	int result = rmdir(disk_path);
-
-	// TODO: Remove any template that is based on this template
-
-	free(disk_path);
-	return result == 0 ? SUCCESS : FAILURE;
-}
-
-Result ListTemplates(char*** _template_ids) {
-	// Get the path to the template pool
-	char* pool_path;
-	if (GetTemplatePoolPath(&pool_path) != SUCCESS)
-		return FAILURE;
-
-	// Open the template pool directory
-	DIR* pool_dir = opendir(pool_path);
-	if (pool_dir == NULL) {
-		Log(LOG_LEVEL_ERROR, "Failed to open template pool directory '%s' (%s).", pool_path, strerror(errno));
-		free(pool_path);
-		return FAILURE;
-	}
-	free(pool_path);
-
-	// Allocate an initial array, one element is reserved for the NULL terminator
-	*_template_ids = malloc(sizeof(char*));
-	if (*_template_ids == NULL) {
-		Log(LOG_LEVEL_ERROR, "Failed to allocate memory for template identifiers.");
-		closedir(pool_dir);
-		return FAILURE;
-	}
-	(*_template_ids)[0] = NULL;
-
-	// Iterate over the template pool directory
-	int count = 0;
-	struct dirent* entry;
-	while ((entry = readdir(pool_dir)) != NULL) {
-		// Skip the current and parent directory
-		if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0)
-			continue;
-
-		// Check that the entry actually exists
-		bool exists;
-		if (DoesTemplateExist(entry->d_name, &exists) != SUCCESS || !exists)
-			continue;
-
-		// Allocate a new element in the array
-		char** new_template_ids = realloc(*_template_ids, (count + 2) * sizeof(char*)); // One element is reserved for the NULL terminator
-		if (new_template_ids == NULL) {
-			Log(LOG_LEVEL_ERROR, "Failed to allocate memory for template identifiers.");
-			closedir(pool_dir);
-			for (int i = 0; i < count; i++)
-				free((*_template_ids)[i]);
-			free(*_template_ids);
-			return FAILURE;
-		}
-		*_template_ids = new_template_ids;
-
-		// Copy the entry name into the array
-		if (Duplicate(entry->d_name, &(*_template_ids)[count]) != SUCCESS) {
-			Log(LOG_LEVEL_ERROR, "Failed to allocate memory for template identifier.");
-			closedir(pool_dir);
-			for (int i = 0; i < count; i++)
-				free((*_template_ids)[i]);
-			free(*_template_ids);
-			return FAILURE;
-		}
-
-		// Null-terminate the array
-		(*_template_ids)[count + 1] = NULL;
-
-		// Increment the count
-		count++;
-	}
-
-	// Close the template pool directory
-	closedir(pool_dir);
-
-	return SUCCESS;
-}
-
-Result GetHighestOrderTemplate(char** _template_id) {
-	*_template_id = NULL;
-
-	// Get the list of template identifiers
-	char** template_ids;
-	if (ListTemplates(&template_ids) != SUCCESS)
-		return FAILURE;
-
-	// Find the highest order template identifier
-	uint64_t highest_order = -1;
-	char* highest_template_id = NULL;
-
-	for (int i = 0; template_ids[i] != NULL; i++) {
-		uint64_t order;
-		if (GetTemplateIdentifierOrder(template_ids[i], &order) != SUCCESS)
-			continue;
-
-		if (order > highest_order) {
-			highest_order = order;
-			highest_template_id = template_ids[i];
-		}
-	}
-
-	// Duplicate the highest order template identifier
-	if (Duplicate(highest_template_id, _template_id) != SUCCESS)
-		return FAILURE;
-
-	for (int i = 0; template_ids[i] != NULL; i++)
-		free(template_ids[i]);
-	free(template_ids);
-	return SUCCESS;
-}

src/template.h

@@ -1,19 +0,0 @@
-#pragma once
-
-#include "utils.h"
-
-#define MAX_TEMPLATE_ID_LENGTH 64
-
-Result IsTemplateIdentifierValid(const char* template_id, bool* _valid);
-Result GetTemplateIdentifierOrder(const char* template_id, uint64_t* _order);
-Result GetTemplateIdentifierDescription(const char* template_id, char** _description);
-Result CreateTemplateIdentifier(uint64_t order, const char* template_description, char** _template_id);
-
-Result GetTemplatePoolPath(char** _path);
-Result GetTemplateDiskPath(const char* template_id, char** _path);
-Result DoesTemplateExist(const char* template_id, bool* _exists);
-
-Result AddTemplate(const char* template_id, const char* image_id);
-Result RemoveTemplate(const char* template_id);
-Result ListTemplates(char*** _template_ids);
-Result GetHighestOrderTemplate(char** _template_id);

src/utils.h

@@ -1,38 +1,30 @@
 #pragma once
 
+#include <stdlib.h>
 #include <stdint.h>
 #include <stdbool.h>
-#include <stdlib.h>
 
-typedef enum {
+#define ERROR_BUFFER_SIZE 4096
-	SUCCESS,
-	FAILURE
-} Result;
 
-typedef enum {
+extern char _error_buffer[];
-	LOG_LEVEL_DEBUG,
-	LOG_LEVEL_INFO,
-	LOG_LEVEL_WARNING,
-	LOG_LEVEL_ERROR,
-} LogLevel;
 
-extern LogLevel LOG_LEVEL;
+typedef int result_t;
 
-void SetLogLevel(LogLevel level);
+result_t success(void);
-void Log(LogLevel level, const char* format, ...);
+result_t failure(const char* format, ...);
+const char* error(void);
 
-Result Format(char** _string, const char* fmt, ...);
+result_t format(char** _str, const char* format, ...);
-Result Duplicate(const char* string, char** _duplicate);
+result_t substring(char** _str, const char* str, size_t start, size_t length);
-Result Substring(const char* string, size_t start, size_t end, char** _substring);
 
-Result FormatSize(uint64_t size, char** _size_str);
+result_t format_size(char** _str, uint64_t size);
-Result ParseSize(const char* size_str, uint64_t* _size);
+result_t parse_size(uint64_t* _size, const char* str);
 
-Result RunExecutable(int* _exit_code, char** _stdout, char** _stderr, const char* executable, ...);
+result_t execute(int* _exit_code, char** _stdoutbuf, char** _stderrbuf, const char* executable, ...);
 
-Result ReadFileDescriptor(int fd, char** _content);
+result_t read_fd(char** _str, int fd);
-Result WriteFileDescriptor(int fd, const char* content);
+result_t write_fd(int fd, const char* str);
-Result ReadFile(const char* path, char** _content);
+result_t read_file(char** _str, const char* path);
-Result WriteFile(const char* path, const char* content);
+result_t write_file(const char* path, const char* str);
 
-Result CopyFile(const char* source_path, const char* destination_path);
+result_t list_files(char*** _files, const char* path, bool (*filter)(const char*));