diff --git a/config.h b/config.h deleted file mode 100644 index 5de7fab..0000000 --- a/config.h +++ /dev/null @@ -1,27 +0,0 @@ -/* - * config.h - Various compile-time settings for libglacier - * - * This file is part of Glacier. - * - * Glacier is free software: you can redistribute it and/or modify it under the terms of the - * GNU General Public License as published by the Free Software Foundation, either - * version 3 of the License, or (at your option) any later version. - * - * Glacier is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; - * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A - * PARTICULAR PURPOSE. See the GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along with Glacier. If - * not, see . - */ - -#ifndef CONFIG_H_ -#define CONFIG_H_ - -/* LG_VERBOSE - whether to use verbose logging for library events or not - * - * 0 is false, 1 is true - */ -#define LG_VERBOSE 0 - -#endif diff --git a/libglacier.c b/libglacier.c deleted file mode 100644 index 1493f7d..0000000 --- a/libglacier.c +++ /dev/null @@ -1,680 +0,0 @@ -/* - * libglacier.c - Backend C library for Glacier - * - * This file is part of Glacier. - * - * Glacier is free software: you can redistribute it and/or modify it under the terms of the - * GNU General Public License as published by the Free Software Foundation, either - * version 3 of the License, or (at your option) any later version. - * - * Glacier is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; - * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A - * PARTICULAR PURPOSE. See the GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along with Glacier. If - * not, see . - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "config.h" -#include "include/globals.h" - -#define BUFFER_SIZE 1024 -#define MAX_CHILDREN 64 -#define MAX_SIZE 256 - -/* - * Global Variables - * - * Descriptions are given as comments after the variable declaration. - * DEFINED IN: globals.h - * - */ - -config_t cfg; /* Context for libconfig */ -config_setting_t *setting; /* Pointer for setting */ -const char str; /* Unsure what this does, will possibly remove later */ - -int GLACIER_ALLOW_SERVICES; /* Declaration of GLACIER_ALLOW_SERVICES as given in glacier.cfg */ -char GLACIER_ALLOWED_LICENSES; /* Declaration of GLACIER_ALLOWED_LICENSES as given in glacier.cfg */ -int GLACIER_DO_INT_CHECK; /* Declaration of GLACIER_DO_INT_CHECK as given in glacier.cfg */ -int GLACIER_VERBOSE; /* Declaration of GLACIER_VERBOSE as given in glacier.cfg */ - -const char *GLACIER_REPO; /* Declaration of GLACIER_REPO as defined in profile.cfg */ -const char *GLACIER_ARCH; /* Declaration of GLACIER_ARCH as defined in profile.cfg */ -const char *GLACIER_TARGET; /* Declaration of GLACIER_TARGET as defined in profile.cfg */ -const char *GLACIER_LOCALDB; /* Declaration of GLACIER_LOCALDB as defined in profile.cfg */ -const char *GLACIER_SYSTEM_PROFILE; /* Declaration of GLACIER_SYSTEM_PROFILE as defined in profile.cfg */ - -/* Required runtime files */ -const char *runtime_files[] = { - "/etc/glacier.cfg", - "/etc/glacier/call-hooks", - "/etc/make.conf" - }; - -FILE *expected_hash; /* File pointer for expected hash */ -FILE *pkg; /* File pointer for package hash */ - -/* - * END GLOBAL VARIABLES - */ - -/* - * node - * - * DESCRIPTION: Definition of node type. - * DEFINED IN: data.h - * - */ - -struct node { - char *data; - struct node *children[MAX_CHILDREN]; - int numChildren; -}; - -/* - * infolog - * - * DESCRIPTION: Output a stylized info message. - * PARAMETERS: char MSG[] - * DEFINED IN: log.h - * - */ - -void -infolog(char MSG[]) -{ - if (MSG == NULL) { - return; - } - - printf(COL_BLUE "[i]" COL_RESET " %s\n", MSG); - return; -} - -/* - * warnlog - * - * DESCRIPTION: Output a stylized warning message. - * Parameters: char MSG[] - * DEFINED IN: log.h - * - */ - -void -warnlog(char MSG[]) -{ - if (MSG == NULL) { - return; - } - - printf(COL_YELLOW "[!]" COL_RESET " %s\n", MSG); - return; -} - -/* - * errlog - * - * DESCRIPTION: Output a stylized error message. - * PARAMETERS: char MSG[] - * DEFINED IN: log.h - * - */ - -void -errlog(char MSG[]) -{ - if (MSG == NULL) { - return; - } - - fprintf(stderr, COL_RED "[x]" COL_RESET " %s\n", MSG); - return; -} - -/* - * successlog - * - * DESCRIPTION: Output a stylized success message. - * PARAMETERS: char MSG[] - * DEFINED IN: log.h - * - */ - -void -successlog(char MSG[]) -{ - if (MSG == NULL) { - return; - } - - printf(COL_GREEN "[*]" COL_RESET " %s\n", MSG); - return; -} - -/* - * runtime_exists - * - * DESCRIPTION: Check if necesary runtime files exist. - * PARAMETERS: None. - * DEFINED IN: runtime.h - * - */ - -int -runtime_exists(void) -{ - int f; - - for (f = 0; f < sizeof(runtime_files); f++) { - if (access(runtime_files[f], F_OK) == 0) { - continue; - } else { - /* might keep this message, might not, idk */ - /* errlog("Runtime files are missing, cannot continue with operation."); - printf(COL_RED "[x]" COL_RESET " The following files are missing:\n"); - printf(COL_RED "[x]" COL_RESET " \t%s\n", runtime_files[f]); */ - return 0; - } - } - return 1; -} - -/* - * is_process_root - * - * DESCRIPTION: Check if process is running as root. - * PARAMETERS: char MSG[] - * DEFINED IN: runtime.h - * - */ - -int -is_process_root(void) -{ - if (getuid() != 0) { - return 0; /* process is not running as root */ - } - else { - return 1; /* process is running as root */ - } -} - -/* - * init_config - * - * DESCRIPTION: Initialize libconfig. - * PARAMETERS: None. - * DEFINED IN: config.h - * - */ - -int -init_config(void) -{ - config_init(&cfg); - - if (! config_read_file(&cfg, runtime_files[0])) { - fprintf(stderr, "%s:%d - %s\n", config_error_file(&cfg), - config_error_line(&cfg), config_error_text(&cfg)); - config_destroy(&cfg); - return(EXIT_FAILURE); - } - - if (LG_VERBOSE == 1) { - infolog("Initialized libconfig"); - } - - return 0; -} - -/* - * die_config - * - * DESCRIPTION: Kill libconfig. - * PARAMETERS: None. - * DEFINED IN: config.h - * - */ - -int -die_config(void) -{ - config_destroy(&cfg); - - if (LG_VERBOSE == 1) { - infolog("Destroyed libconfig"); - } - - return(EXIT_SUCCESS); -} - -/* - * load_all_from_config - * - * DESCRIPTION: Loads all settings from the Glacier config file. - * PARAMETERS: None. - * DEFINED IN: config.h - * - */ - -int -load_all_from_config(void) -{ - /* this is probably really ugly but it works */ - if (! config_lookup_bool(&cfg, "GLACIER_DO_INT_CHECK", &GLACIER_DO_INT_CHECK)) { return 1; } - if (! config_lookup_bool(&cfg, "GLACIER_VERBOSE", &GLACIER_VERBOSE)) { return 1; } - - return 0; -} - -/* - * load_all_from_profile - * - * DESCRIPTION: Loads all settings from the Glacier system profile. - * PARAMETERS: None. - * DEFINED IN: config.h - * - */ - -int -load_all_from_profile(void) -{ - if (! config_lookup_string(&cfg, "GLACIER_REPO", &GLACIER_REPO)) { return 1; } - if (! config_lookup_string(&cfg, "GLACIER_ARCH", &GLACIER_ARCH)) { return 1; } - if (! config_lookup_string(&cfg, "GLACIER_TARGET", &GLACIER_TARGET)) { return 1; } - if (! config_lookup_string(&cfg, "GLACIER_SYSTEM_PROFILE", &GLACIER_SYSTEM_PROFILE)) { return 1; } - - return 0; -} - -/* - * load_setting_from_config - * - * DESCRIPTION: Load a specified setting from the Glacier config file. - * PARAMETERS: char SETTING[] - * DEFINED IN: config.h - * - */ - -/* int -load_setting_from_config(char SETTING[]) -{} */ - -/* -* create_node -* -* DESCRIPTION: Create a dependency tree node. -* PARAMETERS: char *data -* DEFINED IN: data.h -* -*/ - -struct node -*create_node(char *data) -{ - struct node *newNode = (struct node*)malloc(sizeof(struct node)); - newNode->data = strdup(data); - newNode->numChildren = 0; - return newNode; -} - -/* - * add_child - * - * DESCRIPTION: Add a child node to a parent node. - * PARAMETERS: struct node *parent, struct node *child - * DEFINED IN: data.h - * - */ - -void -add_child(struct node *parent, struct node *child) -{ - if (parent->numChildren < MAX_CHILDREN) { - parent->children[parent->numChildren++] = child; - } else { - if (LG_VERBOSE == 1) { errlog("Maximum number of children exceeded"); } - exit(1); - } -} - -/* -* print_tree -* -* DESCRIPTION: Print a dependency tree. -* PARAMETERS: struct node *root, int level -* DEFINED IN: data.h -* -*/ - -void -print_tree(struct node *root, int level) -{ - if (root == NULL) { - return; - } - - for (int i = 0; i < level; i++) { - printf(" "); - } - - printf("%s\n", root->data); - - for (int i = 0; i < root->numChildren; i++) { - print_tree(root->children[i], level + 1); - } -} - -/* - * queue - * - * DESCRIPTION: Definition of queue type. - * DEFINED IN: data.h - * - */ - -typedef struct { - int items[MAX_SIZE]; - int front; - int rear; -} queue; - -/* -* init_queue -* -* DESCRIPTION: Initialize a queue. -* PARAMETERS: queue *q -* DEFINED IN: data.h -* -*/ - -void -init_queue(queue *q) -{ - q -> front = -1; - q -> rear = 0; -} - -/* -* queue_is_empty -* -* DESCRIPTION: Check if queue is empty. -* PARAMETERS: struct node *root, int level -* DEFINED IN: data.h -* -*/ - -bool queue_is_empty(queue *q) { return (q -> front == q -> rear -1); } - -/* -* queue_is_full -* -* DESCRIPTION: Check if queue is full. -* PARAMETERS: queue *q -* DEFINED IN: data.h -* -*/ - -bool queue_is_full(queue *q) { return (q -> rear == MAX_SIZE); } - -/* -* enqueue -* -* DESCRIPTION: Enqueue an element at the back of the queue. -* PARAMETERS: queue *q, int value -* DEFINED IN: data.h -* -*/ - -void -enqueue (queue *q, int value) -{ - if (queue_is_full(q)) { - printf("Queue is full\n"); - return; - } - - q -> items[q -> rear] = value; - q -> rear++; -} - -/* -* dequeue -* -* DESCRIPTION: Dequeue the element at the front of the queue. -* PARAMETERS: queue *q, int value -* DEFINED IN: data.h -* -*/ - -void -dequeue(queue *q) -{ - if (queue_is_empty(q)) { - printf("Queue is empty\n"); - return; - } - - q -> front++; -} - -/* -* peek -* -* DESCRIPTION: View the element at the front of the queue. -* PARAMETERS: struct node *root, int level -* DEFINED IN: data.h -* -*/ - -int -peek(queue *q) -{ - if (queue_is_empty(q)) { - printf("Queue is empty\n"); - return -1; - } - - return q -> items[q -> front + 1]; -} - -/* -* print_queue -* -* DESCRIPTION: Print the queue. -* PARAMETERS: queue *q -* DEFINED IN: data.h -* -*/ - -void -print_queue(queue *q) -{ - if (queue_is_empty(q)) { - printf("Queue is empty\n"); - return; - } - - printf("Current Queue: "); - - for (int i = q -> front + 1; i < q -> rear; i++) { - printf("%d ", q -> items[i]); - } - printf("\n"); -} - -/* - * mkworkspace - * - * DESCRIPTION: Creates a new Glacier workspace in /tmp. - * PARAMETERS: None. - * DEFINED IN: pkgops.h - * - */ - -int -mkworkspace(void) -{ - DIR* workspace = opendir("/tmp/glacier-workspace"); - if (workspace) { - /* infolog("Not creating new workspace, valid workspace already exists."); */ - return 0; - } else if (ENOENT == errno) { - /* infolog("Creating new Glacier workspace..."); */ - mkdir("/tmp/glacier-workspace", 0777); - return 1; - } else { - if (LG_VERBOSE == 1) { - errlog("in mkworkspace()"); - errlog("mkdir() failed to run"); - } - return -1; - } -} - -/* - * prepare_pkg - * - * DESCRIPTION: Copies a package archive from the localdb to the workspace, and unpacks it. - * PARAMETERS: char PACKAGE[] - * DEFINED IN: pkgops.h - * - */ - -int -prepare_pkg(char PACKAGE[]) -{ - if (PACKAGE == NULL) { - printf(COL_RED "[x] " COL_RESET "Package '%s' does not exist in the local database.\n", PACKAGE); - errlog("Ensure your local database is up to date and try again."); - errlog("This can be done by running 'glacier-update-pkgdb' as root."); - return 1; - } else { - char PKG_NEW[512]; - strcat(PKG_NEW, "/tmp/glacier-workspace/"); - strcat(PKG_NEW, PACKAGE); - strcat(PKG_NEW, ".tar"); - FILE *pkg_old, *pkg_new; - char filename[100], contents; - - pkg_old = fopen(PACKAGE, "r"); - pkg_new = fopen(PKG_NEW, "a+"); - - contents = fgetc(pkg_old); - - while (contents != EOF) { - fputc(contents, pkg_new); - contents = fgetc(pkg_old); - } - - fclose(pkg_old); - fclose(pkg_new); - char *tar_args[] = { - "/bin/tar", /* This should be changed to /glacier/bin/tar later on */ - "-xvf", - PKG_NEW, - NULL, - }; - - execvp( - "/bin/tar", /* Above comment applies here */ - tar_args - ); - if (errno != 0) { - printf(COL_RED "[x] " COL_RESET "Error while unpacking archive for package %s.\n", PACKAGE); - return errno; - } - remove(PKG_NEW); - char pkg_dir[512]; - strcat(pkg_dir, "/tmp/glacier-workspace/"); - strcat(pkg_dir, PACKAGE); - chdir(pkg_dir); - } -} - -/* - * run_make_task - * - * DESCRIPTION: Runs a make task in current working directory - * PARAMETERS: char TASK[] - * DEFINED IN: pkgops.h - * - */ - -int -run_make_task(char TASK[]) -{ - char *build_args[] = { - "/bin/make", /* This should be changed to /glacier/bin/make later on */ - TASK, - NULL - }; - - execvp( - "/bin/make", /* Above comment applies here */ - build_args - ); - if (errno != 0) { - errlog("An error occurred while running the make task."); - return errno; - } -} - -/* - * compare_file_hash - * - * DESCRIPTION: Compare two file hashes - * PARAMETERS: char ORIG_HASH[], char FILE[] - * DEFINED IN: security.h - * - */ - -/* -int -compare_file_hash(char ORIG_HASH[], char FILE[]) -{ - FILE *pkg; - - pkg = fopen(FILE, "rb"); - if (pkg == NULL) { - return -1; - } - - unsigned char hash[SHA256_DIGEST_LENGTH]; - SHA256_CTX sha256; - - SHA256_Init(&sha256); - - const int hashBufferSize = 1024; - unsigned char hashBuffer[hashBufferSize]; - int bytesRead; - - while ((byesRead = fread(hashBuffer, 1, hashBufferSize, pkg)) != 0) { - SHA256_Update(&sha256, hashBuffer, bytesRead); - } - - SHA256_Final(hash, &sha256); - fclose(pkg); - - for (int i = 0; i < SHA256_DIGEST_LENGTH; i++) { - printf("%02x", hash[i]); - } -} -*/