7/6

.gitmodules

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+[submodule "lib/libconfini"]
+	path = lib/libconfini
+	url = https://github.com/madmurphy/libconfini

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "makefile.configureOnOpen": false
+}

LICENSE

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
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+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program 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.
+
+    This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

Makefile

@@ -9,9 +9,8 @@ TDIR = ./tests
 
 include config.mk
 
-all:
+all: lib
-	@echo "No make option specified."
+	@echo "Built static library"
-	@echo "Run 'make help' for a full list of options."
 
 help:
 	@echo "Make options for libglacier:"
@@ -30,9 +29,9 @@ test: deprecate
 	cp etc/example.cfg ./glacier.cfg
 
 lib: $(SDIR)/libglacier.c
-	mkdir build
+	mkdir -p build
-	mkdir build/lib
+	mkdir -p build/lib
-	$(CC) $(SDIR)/libglacier.c -c $(LIBFLAGS) -o $(BDIR)/lib/libglacier.o
+	$(CC) $(SDIR)/libglacier.c -c -o $(BDIR)/lib/libglacier.o $(LIBFLAGS)
 	$(AR) -rc $(BDIR)/lib/libglacier.a build/lib/libglacier.o
 
 check: lib $(BDIR) $(TDIR)/unit-tests.c

config.mk

@@ -5,6 +5,6 @@
 CC = /bin/gcc
 AR = /bin/ar
 
-LIBFLAGS = -lconfig -lcrypto
+LIBFLAGS = -lcurl -lconfini
 
 PREFIX = /usr

include/config.h

@@ -1,92 +1,44 @@
 /*
  * 	config.h - Config loading for Glacier
  *
- * 	This file is part of Glacier.
+ * 	This file is part of Libglacier.
  *
- * 	Glacier is free software: you can redistribute it and/or modify it under the terms of the
+ * 	Libglacier is free software: you can redistribute it and/or modify it under the terms of the
  * 	GNU Lesser 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;
+ * 	Libglacier 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 Lesser General Public License for more details.
  *
- * 	You should have received a copy of the GNU Lesser General Public License along with Glacier. If
+ * 	You should have received a copy of the GNU Lesser General Public License along with libglacier. If
  * 	not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef GLACIERCONFIG_H_
 #define GLACIERCONFIG_H_
 
-#include <libconfig.h>
-
 /* Constants */
 #ifndef LG_VERBOSE
 #define LG_VERBOSE 0
 #endif
 
-/*
+typedef struct
- * init_config
+{
- *
+	char section[128];
- * DESCRIPTION: Initialize libconfig with required configs
+	char key[128];
- * PARAMETERS:
+	char value[128];
- * 		None.
+}
- * RETURN VALUES:
+config_entry_t;
- * 		0 on success, 1 on failure
- * CAVEATS:
- * 		This MUST be called before ANY other config function is.
- * EXAMPLE:
- * 		init_config();
- */
 
-int init_config(void);
+typedef struct
+{
+	config_entry_t entries[64];
+	size_t count;
+}
+config_storage_t;
 
-/*
+int gl_config_storage_callback(IniDispatch *dispatch, void *data);
- * die_config
+config_storage_t gl_store_config(FILE *config);
- *
- * DESCRIPTION: Die_config brings down libconfig gracefully.
- * PARAMETERS:
- * 		None.
- * RETURN VALUES:
- * 		0 on success, 1 on failure
- * CAVEATS:
- * 		This MUST be called after ALL other config functions have completed.
- * EXAMPLE:
- * 		die_config();
- */
-
-int die_config(void);
-
-/*
- * load_all_from_config
- *
- * DESCRIPTION: load_all_from_config loads all settings from the config file.
- * PARAMETERS:
- * 		None.
- * RETURN VALUES:
- * 		0 on success, 1 on failure
- * CAVEATS:
- * 		None.
- * EXAMPLE:
- * 		load_all_from_config();
- */
-
-int load_all_from_config(void);
-
-/*
- * load_all_from_profile
- *
- * DESCRIPTION: load_all_from_profile loads all settings from the profile file.
- * PARAMETERS:
- * 		None.
- * RETURN VALUES:
- * 		0 on success, 1 on failure
- * CAVEATS:
- * 		None.
- * EXAMPLE:
- * 		load_all_from_profile();
- */
-
-int load_all_from_profile(void);
 
 #endif

include/data.h

@@ -1,17 +1,17 @@
 /*
  * 	data.h - Data structures for libglacier
  *
- * 	This file is part of Glacier.
+ * 	This file is part of libglacier.
  *
- * 	Glacier is free software: you can redistribute it and/or modify it under the terms of the
+ * 	Libglacier is free software: you can redistribute it and/or modify it under the terms of the
  * 	GNU Lesser 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;
+ * 	Libglacier 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 Lesser General Public License for more details.
  *
- * 	You should have received a copy of the GNU Lesser General Public License along with Glacier. If
+ * 	You should have received a copy of the GNU Lesser General Public License along with libglacier. If
  * 	not, see <https://www.gnu.org/licenses/>.
  */
 
@@ -36,69 +36,39 @@ struct node {
 };
 
 /*
- * create_node
+ * gl_create_node
  *
- * DESCRIPTION: Create_node creates a node for a dependency tree data structure.
+ * DESCRIPTION: Create a dependency tree node.
- * PARAMETERS:
+ * PARAMETERS: char *data
- * 		char *data -> The name of the node to create
+ * RETURNS: struct node* on success, NULL on failure
- * RETURN VALUES:
- * 		A pointer to the created node on success, NULL on failure
- * CAVEATS:
- * 		Caller must free the node using free_node when done
- * EXAMPLE:
- * 		struct node *package = create_node("Package");
  */
-
+struct node *gl_create_node(char *data);
-struct node *create_node(char *data);
 
 /*
- * free_node
+ * gl_free_node
  *
- * DESCRIPTION: Free_node recursively frees all memory allocated for a node and its children.
+ * DESCRIPTION: Recursively free a node and all its children.
- * PARAMETERS:
+ * PARAMETERS: struct node *root
- * 		struct node *root -> The root node to free
+ * RETURNS: void
- * RETURN VALUES:
- * 		None.
- * CAVEATS:
- * 		Will free all child nodes recursively.
- * EXAMPLE:
- * 		free_node(package);
  */
-
+void gl_free_node(struct node *root);
-void free_node(struct node *root);
 
 /*
- * add_child
+ * gl_add_child
  *
- * DESCRIPTION: Add_child adds a child node to a parent node.
+ * DESCRIPTION: Add a child node to a parent node.
- * PARAMETERS:
+ * PARAMETERS: struct node *parent, struct node *child
- * 		struct node *parent -> The parent node which the child will be added to
+ * RETURNS: 0 on success, 1 on NULL pointer, 2 on invalid numChildren, 3 on max children exceeded
- * 		struct node *child  -> The child node which will be added to the parent node
- * RETURN VALUES:
- * 		0 on success, 1-3 for different error conditions
- * CAVEATS:
- * 		None.
- * EXAMPLE:
- * 		add_child(package, dep1);
  */
-
+int gl_add_child(struct node *parent, struct node *child);
-int add_child(struct node *parent, struct node *child);
 
 /*
- * print_tree
+ * gl_print_tree
  *
- * DESCRIPTION: Print_tree prints a dependency tree specified at its root node.
+ * DESCRIPTION: Print a dependency tree.
- * PARAMETERS:
+ * PARAMETERS: struct node *root, int level
- * 		struct node *root -> The tree to print
+ * RETURNS: 0 on success, 1 on invalid level, 2 on max recursion depth exceeded, 3 on invalid numChildren, 4 on child print error
- * 		int level	  -> The number of levels to descend
- * RETURN VALUES:
- * 		0 on success, non-zero on error
- * CAVEATS:
- * 		None.
- * EXAMPLE:
- * 		print_tree(package, 0);
  */
-
+int gl_print_tree(struct node *root, int level);
-int print_tree(struct node *root, int level);
 
 #endif

include/globals.h

@@ -1,47 +1,29 @@
 /*
  * 	globals.h - Global variables for libglacier
  *
- * 	This file is part of Glacier.
+ * 	This file is part of libglacier.
  *
- * 	Glacier is free software: you can redistribute it and/or modify it under the terms of the
+ * 	Libglacier is free software: you can redistribute it and/or modify it under the terms of the
  * 	GNU Lesser 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;
+ * 	Libglacier 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 Lesser General Public License for more details.
  *
- * 	You should have received a copy of the GNU Lesser General Public License along with Glacier. If
+ * 	You should have received a copy of the GNU Lesser General Public License along with libglacier. If
  * 	not, see <https://www.gnu.org/licenses/>.
  */
 
 #ifndef GLOBALS_H_
 #define GLOBALS_H_
 
-#include <libconfig.h>
 #include <stdio.h>
 
 /* Constants */
 #define BUFFER_SIZE 1024
 #define MAX_SIZE 256
 
-/* libconfig context */
-extern config_t cfg;
-extern config_setting_t *setting;
-
-/* Configuration variables */
-extern int GLACIER_ALLOW_SERVICES;
-extern char *GLACIER_ALLOWED_LICENSES;
-extern int GLACIER_DO_INT_CHECK;
-extern int GLACIER_VERBOSE;
-
-/* Profile variables */
-extern const char *GLACIER_REPO;
-extern const char *GLACIER_ARCH;
-extern const char *GLACIER_TARGET;
-extern const char *GLACIER_LOCALDB;
-extern const char *GLACIER_SYSTEM_PROFILE;
-
 /* Required runtime files */
 extern const char *runtime_files[];
 

include/log.h

@@ -1,17 +1,17 @@
 /*
  * 	log.h - Logging function declarations for libglacier
  *
- * 	This file is part of Glacier.
+ * 	This file is part of libglacier.
  *
- * 	Glacier is free software: you can redistribute it and/or modify it under the terms of the
+ * 	Libglacier is free software: you can redistribute it and/or modify it under the terms of the
  * 	GNU Lesser 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;
+ * 	Libglacier 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 Lesser General Public License for more details.
  *
- * 	You should have received a copy of the GNU Lesser General Public License along with Glacier. If
+ * 	You should have received a copy of the GNU Lesser General Public License along with libglacier. If
  * 	not, see <https://www.gnu.org/licenses/>.
  */
 
@@ -19,81 +19,73 @@
 #define GLACIERLOG_H_
 
 /*
- * infolog
+ * gl_infolog
  *
- * DESCRIPTION: Infolog outputs a stylized info message. It follows Glacier's uniform CLI style.
+ * DESCRIPTION: gl_infolog outputs a stylized info message. It follows Glacier's uniform CLI style.
  * PARAMETERS:
  * 		char MSG[] -> The message to output
  * RETURN VALUES:
  * 		None.
  * CAVEATS:
- * 		* Cannot output variables. If you must output variables, use printf instead.
+ * 		None.
- * 		* A NEWLINE ('\n') character is implied, therefore putting one at the end of
- * 		  a string is not needed.
  * EXAMPLE:
- * 		infolog("This is an info message.");
+ * 		gl_infolog("This is an info message.");
  */
 
-void infolog(char MSG[]);
+void gl_infolog(char MSG[]);
 
 /**************************************************************************************************************/
 
 /*
- * warnlog
+ * gl_warnlog
  *
- * DESCRIPTION: Warnlog outputs a stylized warning message. It follows Glacier's uniform CLI style.
+ * DESCRIPTION: gl_warnlog outputs a stylized warning message. It follows Glacier's uniform CLI style.
  * PARAMETERS:
  * 		char MSG[] -> The message to output
  * RETURN VALUES:
  * 		None.
  * CAVEATS:
- * 		* Cannot output variables. If you must output variables, use printf instead.
+ * 		None.
- * 		* A NEWLINE ('\n') character is implied, therefore putting one at the end of
- * 		  a string is not needed.
  * EXAMPLE:
- * 		warnlog("This is a warning message.");
+ * 		gl_warnlog("This is a warning message.");
  */
 
-void warnlog(char MSG[]);
+void gl_warnlog(char MSG[]);
 
 /**************************************************************************************************************/
 
 /*
- * errlog
+ * gl_errlog
  *
- * DESCRIPTION: Errlog outputs a stylized error message. It follows Glacier's uniform CLI style.
+ * DESCRIPTION: gl_errlog outputs a stylized error message. It follows Glacier's uniform CLI style.
  * PARAMETERS:
  * 		char MSG[] -> The message to output
  * RETURN VALUES:
  * 		None.
  * CAVEATS:
- * 		* Cannot output variables. If you must output variables, use printf instead.
+ * 		None.
- * 		* A NEWLINE ('\n') character is implied, therefore putting one at the end of
- * 		  a string is not needed.
  * EXAMPLE:
- * 		errlog("This is an error message.");
+ * 		gl_errlog("This is an error message.");
  */
 
-void errlog(char MSG[]);
+void gl_errlog(char MSG[]);
 
 /**************************************************************************************************************/
 
 /*
- * successlog
+ * gl_successlog
  *
- * DESCRIPTION: Successlog outputs a stylized success message. It follows Glacier's uniform CLI style.
+ * DESCRIPTION: gl_successlog outputs a stylized success message. It follows Glacier's uniform CLI style.
  * PARAMETERS:
  * 		char MSG[] -> The message to output
  * RETURN VALUES:
  * 		None.
  * CAVEATS:
- * 		* Cannot output variables. If you must output variables, use printf instead.
+ * 		None.
- * 		* A NEWLINE ('\n') character is implied, therefore putting one at the end of
- * 		  a string is not needed.
  * EXAMPLE:
- * 		successlog("This is a success message.");
+ * 		gl_successlog("This is a success message.");
  */
 
-void successlog(char MSG[]);
+void gl_successlog(char MSG[]);
 
 #endif

include/pkgops.h

@@ -1,17 +1,17 @@
 /*
  * 	pkgops.h - Package-related function declarations for libglacier
  *
- * 	This file is part of Glacier.
+ * 	This file is part of libglacier.
  *
- * 	Glacier is free software: you can redistribute it and/or modify it under the terms of the
+ * 	Libglacier is free software: you can redistribute it and/or modify it under the terms of the
  * 	GNU Lesser 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;
+ * 	Libglacier 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 Lesser General Public License for more details.
  *
- * 	You should have received a copy of the GNU Lesser General Public License along with Glacier. If
+ * 	You should have received a copy of the GNU Lesser General Public License along with libglacier. If
  * 	not, see <https://www.gnu.org/licenses/>.
  */
 
@@ -24,55 +24,91 @@
 /* Maximum size for path buffers */
 #define PATH_MAX_SIZE 512
 
-/*
+typedef struct
- * mkworkspace
+{
- *
+       char *name;
- * DESCRIPTION: Mkworkspace prepares /tmp/glacier-workspace for an operation
+       char *ver;
- * PARAMETERS:
+       char *desc;
- * 		None.
+       char *maintainer;
- * RETURN VAUES:
+       char *license;
- * 		0 on workspace already exists, 1 on workspace created, -1 on error
+       char *arch;
- * CAVEATS:
+       char **deps;
- * 		None.
+       char **conflicts;
- * EXAMPLE:
+}
- * 		mkworkspace();
+gl_package;
- */
-
-int mkworkspace(void);
 
 /*
- * prepare_pkg
+ * gl_mkworkspace
+ *
+ * DESCRIPTION: gl_mkworkspace prepares /tmp/glacier-workspace for an operation
  *
- * DESCRIPTION: Prepare_pkg copies a package archive from the localdb, and untars it
- * PARAMETERS:
- * 		char PACKAGE[] -> The package file to prepare
- * RETURN VAUES:
- * 		0 on success, 1 on package does not exist or error, other values for specific errors
- * CAVEATS:
- * 		The example presented is bad. You should be calling the system profile variable
- * 		rather than manually specifying one.
  * EXAMPLE:
- * 		prepare_pkg("/glacier/localdb/epkgs-x86_64-musl/foo.tar");
+ * 		gl_mkworkspace();
+ *
+ * RETURNS: 0 on success, 1 if workspace already exists, -1 on failure
  */
-
+int gl_mkworkspace(void);
-int prepare_pkg(char PACKAGE[]);
 
 /*
- * run_make_task
+ * gl_prepare_pkg
+ *
+ * DESCRIPTION: gl_prepare_pkg copies a package archive from the localdb, and untars it
  *
- * DESCRIPTION: Run_make_task runs a specified make task in a package's current working directory
- * PARAMETERS:
- * 		char TASK[] -> The make task to run
- * RETURN VAUES:
- * 		0 on success, other values for specific errors
- * CAVEATS:
- * 		MUST be run after prepare_pkg(), or else errors will occur
- * 		Same caveat as above. Do not manually specify the system profile, use its variable.
  * EXAMPLE:
- * 		prepare_pkg("/glacier/localdb/epkgs-x86_64-musl/foo.tar");
+ * 		gl_prepare_pkg("/glacier/localdb/epkgs-x86_64-musl/foo.tar");
- * 		run_make_task("installpkg");
+ *
+ * RETURNS: 0 on success, 1 on failure
+ */
+int gl_prepare_pkg(char PACKAGE[]);
+
+/*
+ * gl_run_make_task
+ *
+ * DESCRIPTION: gl_run_make_task runs a specified make task in a package's current working directory
+ *
+ * EXAMPLE:
+ * 		MUST be run after gl_prepare_pkg(), or else errors will occur
+ * 		gl_prepare_pkg("/glacier/localdb/epkgs-x86_64-musl/foo.tar");
+ * 		gl_run_make_task("installpkg");
+ *
+ * RETURNS: 0 on success, 1 on failure
+ */
+int gl_run_make_task(char TASK[]);
+
+/*
+ * gl_lock_file
+ *
+ * DESCRIPTION: Locks a specified file using fcntl
+ * PARAMETERS:
+ * 		const char *filepath -> The path to the file to lock
+ * RETURN VALUES:
+ * 		File descriptor on success, -1 on failure
+ * CAVEATS:
+ * 		The returned file descriptor must be passed to gl_unlock_file() to release the lock
+ * EXAMPLE:
+ * 		int fd = gl_lock_file("/path/to/file");
+ * 		if (fd >= 0) {
+ * 			// Do work with locked file
+ * 			gl_unlock_file(fd);
+ * 		}
  */
 
-int run_make_task(char TASK[]);
+int gl_lock_file(const char *filepath);
+
+/*
+ * gl_unlock_file
+ *
+ * DESCRIPTION: Unlocks a specified file using fcntl
+ * PARAMETERS:
+ * 		int file_descriptor -> The file descriptor returned by gl_lock_file()
+ * RETURN VALUES:
+ * 		0 on success, 1 on failure
+ * CAVEATS:
+ * 		Only the process that acquired the lock can release it
+ * EXAMPLE:
+ * 		gl_unlock_file(file_descriptor);
+ */
+
+int gl_unlock_file(int file_descriptor);
 
 #endif

include/runtime.h

@@ -1,17 +1,17 @@
 /*
  * 	runtime.h - Runtime function declarations for libglacier
  *
- * 	This file is part of Glacier.
+ * 	This file is part of libglacier.
  *
- * 	Glacier is free software: you can redistribute it and/or modify it under the terms of the
+ * 	Libglacier is free software: you can redistribute it and/or modify it under the terms of the
  * 	GNU Lesser 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;
+ * 	Libglacier 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 Lesser General Public License for more details.
  *
- * 	You should have received a copy of the GNU Lesser General Public License along with Glacier. If
+ * 	You should have received a copy of the GNU Lesser General Public License along with libglacier. If
  * 	not, see <https://www.gnu.org/licenses/>.
  */
 
@@ -19,51 +19,48 @@
 #define GLACIERRUNTIME_H_
 
 /*
- * runtime_exists
+ * gl_runtime_exists
  *
- * DESCRIPTION: runtime_exists checks if all necessary runtime files exist.
+ * DESCRIPTION: Check if necessary runtime files exist.
- * PARAMETERS:
+ * PARAMETERS: None.
- * 		None. (void)
+ * RETURNS: 1 if all files exist, 0 if any file is missing
- * RETURN VALUES:
- * 		0 on one or more runtime files missing, 1 on all runtime files exist
- * CAVEATS:
- * 		None.
- * EXAMPLE:
- * 		if (runtime_exists() == 0) {
- * 			errlog("One or more runtime files missing");
- * 			return 1;
- * 		}
- * 		else {
- * 			successlog("All runtime files present");
- * 			return 0;
- * 		}
  */
-
+int gl_runtime_exists(void);
-int runtime_exists(void);
 
 /*
- * is_process_root
+ * gl_is_process_root
  *
- * DESCRIPTION: is_process_root checks if the process is running with root privileges.
+ * DESCRIPTION: Check if process is running as root.
- * PARAMETERS:
+ * PARAMETERS: None.
- * 		None. (void)
+ * RETURNS: 1 if running as root, 0 otherwise
- * RETURN VALUES:
- * 		0 on process is not running as root, 1 on process is running as root
- * CAVEATS:
- * 		None.
- * EXAMPLE:
- * 		// Assuming block is running within main(), no values will be returned.
- *		// If you wish to exit the program if it is not running as root, it would
- *		// be appropriate to add return values to this block
- *
- * 		if (is_process_root() == 0) {
- * 			errlog("Process is not running as root");	
- * 		}
- * 		else {
- * 			successlog("Process is running as root");
- * 		}
  */
+int gl_is_process_root(void);
 
-int is_process_root(void);
+/*
+ * gl_get_system_profile
+ *
+ * DESCRIPTION: Get the current system profile.
+ * PARAMETERS: None.
+ * RETURNS: char* containing the system profile name
+ */
+char *gl_get_system_profile(void);
+
+/*
+ * gl_lock_file
+ *
+ * DESCRIPTION: Locks a specified file using fcntl.
+ * PARAMETERS: const char *filepath - Path to the file to lock
+ * RETURNS: file descriptor on success, -1 on failure
+ */
+int gl_lock_file(const char *filepath);
+
+/*
+ * gl_unlock_file
+ *
+ * DESCRIPTION: Unlocks a specified file using fcntl.
+ * PARAMETERS: int file_descriptor - The file descriptor of the locked file
+ * RETURNS: 0 on success, -1 on failure
+ */
+int gl_unlock_file(int file_descriptor);
 
 #endif

include/security.h

@@ -1,17 +1,17 @@
 /*
  * 	security.h - Runtime function declarations for libglacier
  *
- * 	This file is part of Glacier.
+ * 	This file is part of libglacier.
  *
- * 	Glacier is free software: you can redistribute it and/or modify it under the terms of the
+ * 	Libgacier is free software: you can redistribute it and/or modify it under the terms of the
  * 	GNU Lesser 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;
+ * 	Libglacier 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 Lesser General Public License for more details.
  *
- * 	You should have received a copy of the GNU Lesser General Public License along with Glacier. If
+ * 	You should have received a copy of the GNU Lesser General Public License along with libglacier. If
  * 	not, see <https://www.gnu.org/licenses/>.
  */
 
@@ -39,60 +39,52 @@ typedef unsigned char uchar;
 /* int compare_file_hash(char ORIG_HASH[], char FILE[]); */
 
 /*
- * hash_file
+ * gl_print_hash
  *
- * DESCRIPTION: Performs a hashing operation on a file and stores the result
+ * DESCRIPTION: Prints a specified hash string
- * PARAMETERS:
+ * PARAMETERS: unsigned char *hash, unsigned int length
- *      const char *filename -> The file to hash
+ * RETURNS: 0 on success, 1 on error
- *      unsigned char *out_hash -> Buffer to store the resulting hash
- *      unsigned int *out_length -> Will contain the length of the hash
- * RETURN VALUES:
- *      0 on success, other values for specific errors
- * CAVEATS:
- *      out_hash buffer must be large enough to hold the hash (EVP_MAX_MD_SIZE recommended)
- * EXAMPLE:
- *      unsigned char hash[EVP_MAX_MD_SIZE];
- *      unsigned int hash_len;
- *      hash_file("file.txt", hash, &hash_len);
  */
-
+int gl_print_hash(uchar *hash, uint length);
-int hash_file(const char *filename, unsigned char *out_hash, unsigned int *out_length);
 
 /*
- * print_hash
+ * gl_stash_hash
  *
- * DESCRIPTION: Prints a specified hash string to stdout
+ * DESCRIPTION: Stores a hash inside a string
- * PARAMETERS:
+ * PARAMETERS: unsigned char *stored_hash, unsigned char *hash, unsigned int length
- *      unsigned char *hash -> The hash to print
+ * RETURNS: 0 on success, 1 on error
- *      unsigned int length -> Length of the hash
- * RETURN VALUES:
- *      0 on success, 1 on error
- * CAVEATS:
- *      None
- * EXAMPLE:
- *      print_hash(hash, hash_len);
  */
-
+int gl_stash_hash(char *stored_hash, unsigned int stored_hash_size, const uchar *hash, uint length);
-int print_hash(uchar *hash, uint length);
 
 /*
- * stash_hash
+ * gl_hash_file
  *
- * DESCRIPTION: Stores a hash inside a string as hexadecimal representation
+ * DESCRIPTION: Performs a hashing operation on a file using libevhash and stores the result
  * PARAMETERS: 
- *      char *stored_hash -> Buffer to store the resulting hash string
+ *     const char *filename - The path to the file to hash
- *      unsigned int stored_hash_size -> Size of the stored_hash buffer
+ *     uint8_t *out_hash - Buffer to store the resulting hash
- *      const uchar *hash -> The hash to convert to string
+ *     unsigned int *out_length - Will be set to the length of the hash
- *      uint length -> Length of the hash
+ * RETURNS: 0 on success, non-zero on failure
- * RETURN VALUES:
+ *
- *      0 on success, 1 on error
- * CAVEATS:
- *      stored_hash buffer must be at least (length*2)+1 bytes in size
- * EXAMPLE:
- *      char hash_str[65]; // 32 bytes SHA-256 = 64 hex chars + null terminator
- *      stash_hash(hash_str, sizeof(hash_str), hash, hash_len);
  */
+int gl_hash_file(const char *filename, unsigned char *out_hash, unsigned int *out_length);
 
-int stash_hash(char *stored_hash, unsigned int stored_hash_size, const uchar *hash, uint length);
+/*
+ * gl_verify_signature
+ *
+ * DESCRIPTION: Verify a package signature against a trusted keyring
+ * PARAMETERS: char PACKAGE[], char SIGNATURE[]
+ * RETURNS: 0 on success, 1 on verification failure, 2 on file not found
+ */
+int gl_verify_signature(char PACKAGE[], char SIGNATURE[]);
+
+/*
+ * gl_check_integrity
+ *
+ * DESCRIPTION: Check package integrity by comparing with expected hash
+ * PARAMETERS: char PACKAGE[], char EXPECTED_HASH[]
+ * RETURNS: 0 on success, 1 on hash mismatch, 2 on file not found or error
+ */
+int gl_check_integrity(char PACKAGE[], char EXPECTED_HASH[]);
 
 #endif

tests/unit-tests.c

@@ -41,7 +41,42 @@ test_is_process_root(void)
 void
 test_init_config(void)
 {
-	CU_ASSERT_TRUE(init_config());
+	CU_ASSERT_TRUE(gl_init_config());
+}
+
+void
+test_verify_signature(void)
+{
+	/* This test assumes that both files exist in the test environment */
+	CU_ASSERT_EQUAL(gl_verify_signature("test_files/package.tar", "test_files/package.tar.sig"), 0);
+	
+	/* Test with non-existent files */
+	CU_ASSERT_EQUAL(gl_verify_signature("non_existent_file.tar", "non_existent_file.tar.sig"), 2);
+}
+
+void
+test_check_integrity(void)
+{
+	/* This test assumes that test_files/package.tar exists in the test environment
+	   with a known hash value for testing */
+	const char *valid_hash = "d7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592";
+	
+	/* Test file existence check */
+	CU_ASSERT_EQUAL(gl_check_integrity("test_files/package.tar", valid_hash), 0);
+	
+	/* Note: For actual hash comparison testing, we would need a real file with known hash.
+	   These tests would need to be adjusted with real files and hashes for proper testing. */
+}
+
+void
+test_get_system_profile(void)
+{
+	/* Ensure that gl_get_system_profile doesn't return NULL */
+	CU_ASSERT_PTR_NOT_NULL(gl_get_system_profile());
+	
+	const char *profile = gl_get_system_profile();
+	CU_ASSERT_PTR_NOT_NULL(profile);
+	CU_ASSERT_STRING_NOT_EQUAL(profile, "");
 }
 
 int
@@ -70,12 +105,31 @@ main(void)
 		return CU_get_error();
 	}
 
-	if (! CU_add_test(config_tests, "test of init_config()", test_init_config)) {
+	if (! CU_add_test(config_tests, "test of gl_init_config()", test_init_config)) {
 		CU_cleanup_registry();
 		return CU_get_error();
 	}
 
+	CU_pSuite security_tests = CU_add_suite("Security Functions Suite", NULL, NULL);
+	if (! security_tests) {
+		CU_cleanup_registry();
+		return CU_get_error();
+	}
 	
+	if (! CU_add_test(security_tests, "test of gl_verify_signature()", test_verify_signature)) {
+		CU_cleanup_registry();
+		return CU_get_error();
+	}
+	
+	if (! CU_add_test(security_tests, "test of gl_check_integrity()", test_check_integrity)) {
+		CU_cleanup_registry();
+		return CU_get_error();
+	}
+	
+	if (! CU_add_test(runtime_tests, "test of gl_get_system_profile()", test_get_system_profile)) {
+		CU_cleanup_registry();
+		return CU_get_error();
+	}
 
 	CU_basic_run_tests();
 	CU_cleanup_registry();

util/get_libconfini.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+#
+# get_libconfini.sh - clone, configure, and compile libconfini
+# 
+# This file is part of libglacier.
+#
+# Libglacier 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.
+#
+# Libglacier 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
+# libglacier. If not, see <https://www.gnu.org/licenses/>.
+#
+
+if [[ "${0}" == "${BASH_SOURCE[0]}" ]]; then
+	printf "${0} cannot be executed directly and must be sourced.\n"
+	exit 1
+fi
+
+clone() {
+	URL="https://github.com/madmurphy/libconfini";
+}