diff --git a/AUTHORS b/AUTHORS new file mode 100644 index 0000000..93851b3 --- /dev/null +++ b/AUTHORS @@ -0,0 +1 @@ +Hyacinthe Cartiaux diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..d511905 --- /dev/null +++ b/COPYING @@ -0,0 +1,339 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Lesser General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +this service if you wish), that you receive source code or can get it +if you want it, that you can change the software or use pieces of it +in new free programs; and that you know you can do these things. + + To protect your rights, we need to make restrictions that forbid +anyone to deny you these rights or to ask you to surrender the rights. +These restrictions translate to certain responsibilities for you if you +distribute copies of the software, or if you modify it. + + For example, if you distribute copies of such a program, whether +gratis or for a fee, you must give the recipients all the rights that +you have. 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You may copy and distribute verbatim copies of the Program's +source code as you receive it, in any medium, provided that you +conspicuously and appropriately publish on each copy an appropriate +copyright notice and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + + 2. 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For software which is copyrighted by the Free +Software Foundation, write to the Free Software Foundation; we sometimes +make exceptions for this. Our decision will be guided by the two goals +of preserving the free status of all derivatives of our free software and +of promoting the sharing and reuse of software generally. + + NO WARRANTY + + 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY +FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN +OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES +PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED +OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 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. + + 12. 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It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + 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 2 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, write to the Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) year name of author + Gnomovision 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, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This 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. diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..d0fc4cf --- /dev/null +++ b/Makefile @@ -0,0 +1,34 @@ +CC=gcc +EXEC=xtm + +INSTALL_DIRECTORY=/usr/bin +MAN_DIRECTORY=/usr/share/man/fr/man1 + +all: $(EXEC) + +xtm: xtm.o xtmfile.o + $(CC) -o xtm xtm.o xtmfile.o $(LDFLAGS) + +xtmfile.o: src/xtmfile.c src/xtmfile.h + $(CC) -o xtmfile.o -c src/xtmfile.c $(CFLAGS) + +xtm.o: src/xtm.c src/xtmfile.h + $(CC) -o xtm.o -c src/xtm.c $(CFLAGS) + +clean: + rm -rf *.o + +mrproper: clean + rm -f xtm + +install: + cp xtm $(INSTALL_DIRECTORY) + +uninstall: + rm -f $(INSTALL_DIRECTORY)/xtm + +install-man: + cp xtm.1.gz $(MAN_DIRECTORY) + +uninstall-man: + rm -f $(MAN_DIRECTORY)/xtm.1.gz diff --git a/README.md b/README.md new file mode 100644 index 0000000..2c2db38 --- /dev/null +++ b/README.md @@ -0,0 +1,16 @@ +# xtm + +Le format de fichier `XTM` est le format utilisé par le logiciel [XTRemSplit](http://xtremsplit.fr/xtremsplit-accueil.html). Ce logiciel permet de couper des fichiers en plusieurs fichiers de taille moins importante. Le programme XTM permet de réassembler les fichiers par l'intermédiaire d'une interface en ligne de commande. +`XTM` est écrit en C et est distribué sous licence GNU GPL. + +# Installation + +\code $ tar xjvf xtm-0.2.tar.bz2 +$ cd xtm-0.2 +$ make +\# make install \endcode + +#Utilisation + +\code xtm -i path/to/file.001.xtm \[-o output/directory/\] \[-f\] \[-v\] \\endcode +Lisez la page de manuel pour plus d'informations. diff --git a/src/xtm.c b/src/xtm.c new file mode 100644 index 0000000..6ca9ab7 --- /dev/null +++ b/src/xtm.c @@ -0,0 +1,334 @@ +/*************************************************************************** + * Copyright (C) 2006 by Hyacinthe Cartiaux * + * hyacinthe.cartiaux ( a ) free.fr * + * * + * 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 2 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, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ + +/** + * @file + * @brief Fichier principal du programme, contient la fonction main. + * @author Hyacinthe Cartiaux + * @date Novembre / Décembre 2006 + */ + +/** @mainpage XTM + * + * @section intro_sec Introduction + * + * Le format de fichier XTM est le format utilisé par le logiciel XTRemSplit. Ce logiciel permet de couper des fichiers en plusieurs fichiers de taille moins importante. Le programme XTM permet de réassembler les fichiers par l'intermédiaire d'une interface en ligne de commande.\n + * XTM est écrit en C et est distribué sous licence GNU GPL. + * + * + * @section install_sec Installation + * + * @subsection method1 Compilation + * + * \code $ tar xjvf xtm-0.2.tar.bz2 + * $ cd xtm-0.2 + * $ make + * # make install \endcode + * + * + * @section usage_sec Utilisation + * + * \code xtm -i path/to/file.001.xtm [-o output/directory/] [-f] [-v] \endcode \n + * Lisez la page de manuel pour plus d'informations + * + * @section bug_sec Bug + * + * Vous pensez avoir trouvé un bug ? Merci de m'envoyer un mail expliquant comment le reproduire à l'adresse hyacinthe.cartiaux ( a ) free.fr + * + */ + + +#include +#include +#include +#include + +#include "xtmfile.h" + +/** Affiche des informations sur le programme. */ +void show_usage(); + +/** Affiche les informations d'une structure xtm_info. */ +void show_xtminfo(struct xtm_info *xtm_info_struct); + +/** + * Fonction main + * @return \c EXIT_FAILURE (1) en cas d'échec, \c EXIT_SUCCESS (0) sinon. + */ +int main(int argc, char *argv[]) +{ + struct xtm_file *xtm_file_struct; + struct xtm_info *xtm_info_struct; + struct xtm_file **xtm_file_struct_tab; + char **xtm_filenames; + int number_of_xtm_files; + int i, nbr_bad_file; + + struct stat stat_buf; + char *output_file; + + /* Gestion des arguments passés à la commande */ + + int c; + char *filename_001_xtm = NULL; + char *o_directory; + extern char *optarg; + extern int optopt; + int ask = 1, error = 0, disp_info = 0; + + while ((c = getopt(argc, argv, "i:o:fv")) != -1) + { + switch(c) + { + case 'f': + ask = 0; + break; + case 'v': + disp_info = 1; + break; + case 'i': + filename_001_xtm = optarg; + break; + case 'o': + o_directory = optarg; + break; + case ':': + error = 1; + break; + case '?': + error = 1; + break; + } + } + + + if (error == 1 || filename_001_xtm == NULL) + { + show_usage(); + + return EXIT_FAILURE; + } + + + + + /* Récupération de la structure d'info xtm_info du fichier 001.xtm */ + + xtm_file_struct = xtm_open_file(filename_001_xtm); + + if (xtm_file_struct != NULL && ( xtm_info_struct = xtm_get_info(xtm_file_struct->fd) ) != NULL) + { + /* Le fichier existe et il s'agit bien d'un fichier de type .001.xtm */ + + printf("%s ... [OK]\n", xtm_file_struct->filename); + + show_xtminfo(xtm_info_struct); + + + number_of_xtm_files = xtm_info_struct->number_of_files; + + xtm_free_file_struct(xtm_file_struct); + } + else + { + /* Le fichier n'existe pas, on quitte */ + + fprintf(stderr, "%s ... [FAILED]\n", filename_001_xtm); + + xtm_free_file_struct(xtm_file_struct); + + return EXIT_FAILURE; + } + + if (disp_info == 1) + { + /* option -v détectée, l'affichage a déjà été effectué, on quitte */ + + free(xtm_info_struct); + return EXIT_SUCCESS; + } + + + + /* Vérification de o_directory et détermination de output_file */ + + if (o_directory != NULL) { + + /* -o a été utilisé */ + + stat(o_directory, &stat_buf); + + if (S_ISDIR(stat_buf.st_mode)) + { + /* Le paramètre suivant -o est bien un répertoire, on détermine le chemin du fichier à créer pour l'assemblage */ + + output_file = (char *) malloc( ( strlen(o_directory) + + strlen(xtm_info_struct->original_file_name) + + 2 ) + ); + + strcpy(output_file, o_directory); + strcat(output_file, "/"); + strcat(output_file, xtm_info_struct->original_file_name); + + if (stat(output_file, &stat_buf) == 0 && ask == 1) + { + /* Si un fichier portant le même nom que le fichier à assembler existe déjà, et que -f n'a pas été passé en paramètre, on demande confirmation */ + + printf("Erase file %s ? [y/n] ", output_file); + if (getchar() != 'y') + { + printf("Aborting.\n"); + free(output_file); + free(xtm_info_struct); + return 1; + } + printf("\n"); + } + + } + else + { + /* Le paramètre suivant -o n'est pas un répertoire */ + + printf("%s ... [FAILED]", o_directory); + free(xtm_info_struct); + return EXIT_FAILURE; + } + + } + else + { + /* Le nom du fichier à assembler est celui du fichier d'origine, il sera créé dans le répertoire courant */ + + output_file = (char *) malloc ( ( xtm_info_struct->original_file_name_length + 1) * sizeof(char) ); + strcpy(output_file, xtm_info_struct->original_file_name); + } + + + + + + /* Récupération des noms des fichiers xtm */ + + xtm_filenames = xtm_get_all_filenames(filename_001_xtm, number_of_xtm_files); + + + + + /* Ouverture de tous les fichiers xtm nécessaires */ + + xtm_file_struct_tab = xtm_open_all_files(xtm_filenames); + + nbr_bad_file = 0; + + for (i = 0; i < number_of_xtm_files; i++) + { + /* On vérifie chaque fichier */ + + if (xtm_file_struct_tab[i] != NULL) + { + /* Le fichier a bien été ouvert */ + + printf("%s ... [OK]", xtm_filenames[i]); + } + else + { + /* Le fichier n'a pas pu être ouvert en lecture, on commence à libérer la mémoire de xtm_file_struct */ + + fprintf(stderr, "%s ... [FAILED]", xtm_filenames[i]); + xtm_free_all_file_struct(&xtm_file_struct_tab[nbr_bad_file]); + nbr_bad_file = i + 1; + } + + printf("\n"); + } + + xtm_free_all_filenames(xtm_filenames); /* On libère la mémoire pour le tableau de noms de fichiers devenu inutile */ + + if (nbr_bad_file > 0) + { + /* Un ou plusieurs fichiers nécessaires n'ont pas pu être ouvert, on libère la mémoire et on quitte */ + + free(output_file); + free(xtm_info_struct); + xtm_free_all_file_struct(&xtm_file_struct_tab[nbr_bad_file]); + free(xtm_file_struct_tab); + return EXIT_FAILURE; + } + + + + + + /* Phase d'assemblage des fichiers */ + + printf("Assembling xtm files ...\n"); + + if (xtm_assemble(xtm_info_struct, xtm_file_struct_tab, output_file) == 0) + { + /* L'assemblage s'est bien déroulé. */ + + printf("%s ... [OK]\n", output_file); + } + else + { + /* L'assemblage a échoué, on quitte et on libère la mémoire */ + + fprintf(stderr, "%s ... [FAILED]\n", output_file); + + free(output_file); + free(xtm_info_struct); + xtm_free_all_file_struct(xtm_file_struct_tab); + free(xtm_file_struct_tab); + + return EXIT_FAILURE; + } + + /* Libération de la mémoire */ + + free(output_file); + free(xtm_info_struct); + xtm_free_all_file_struct(xtm_file_struct_tab); + free(xtm_file_struct_tab); + + /* Sortie du programme */ + + return EXIT_SUCCESS; + +} + +void show_usage() +{ + printf("XTM v0.2\n"); + printf("Copyright 2006 Hyacinthe Cartiaux\n"); + printf("This program is free software; you may redistribute it under the terms of\nthe GNU General Public License. This program has absolutely no warranty.\n\n\n"); + printf("Usage : xtm -i path/to/file.001.xtm [-o output/directory/] [-f] [-v]\n"); + printf("-f : Do not prompt for confirmation if the new file exists.\n"); + printf("-v : Display headers informations of the 001.xtm file and quit.\n"); +} + +void show_xtminfo(struct xtm_info *xtm_info_struct) +{ + printf("Number of files : %d\n", xtm_info_struct->number_of_files); + printf("Original file name : %s\n", xtm_info_struct->original_file_name); + printf("Original file size : %ld\n", xtm_info_struct->original_file_size); + printf("Md5 sum enabled : %d\n\n", xtm_info_struct->md5_hash_enabled); +} diff --git a/src/xtmfile.c b/src/xtmfile.c new file mode 100644 index 0000000..8d33c83 --- /dev/null +++ b/src/xtmfile.c @@ -0,0 +1,304 @@ +/*************************************************************************** + * Copyright (C) 2006 by Hyacinthe Cartiaux * + * hyacinthe.cartiaux ( a ) free.fr * + * * + * 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 2 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, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ + +/** + * @file + * @brief Fournit des fonctions pour assembler des fichiers XTremSplit. + * @author Hyacinthe Cartiaux + * @date Novembre / Décembre 2006 + */ + +#include "xtmfile.h" + +struct xtm_info * xtm_get_info(FILE *fd) +{ + struct xtm_info *info; + + if (fd == NULL) + return NULL; + + info = (struct xtm_info *) malloc(sizeof(struct xtm_info)); + + fread(&(info->program_name_length), 1, 1, fd); + + memset(info->program_name, 0, 20); + fread(info->program_name, info->program_name_length, 1, fd); + + + fseek(fd, 21, SEEK_SET); + + fread(&(info->version_length), 1, 1, fd); + + memset(info->version, 0, 4); + fread(info->version, info->version_length, 1, fd); + + + /* /!\ Buggé, la date est stockée au format TDateTime de Delphi, qui est un double (8 octets) + * La partie entière représente le nombre de jour depuis le 30/12/1899. + fseek(fd, 37, SEEK_SET); + fread(&(info->date), 3, 1, fd); + */ + + fseek(fd, 40, SEEK_SET); + + fread(&(info->original_file_name_length), 1, 1, fd); + + memset(info->original_file_name, 0, 50); + fread(info->original_file_name, info->original_file_name_length, 1, fd); + + + fseek(fd, 91, SEEK_SET); + + fread(&(info->md5_hash_enabled), 1, 1, fd); + + fread(&(info->number_of_files), 4, 1, fd); + + fread(&(info->original_file_size), 8, 1, fd); + + + /* vérification des en-têtes */ + + if (strcmp("Xtremsplit", info->program_name) != 0) + return NULL; + else if (info->original_file_name_length > 49) + return NULL; + else if (info->md5_hash_enabled != 0 && info->md5_hash_enabled != 1) + return NULL; + else if (info->number_of_files < 2 && info->number_of_files > 999) + return NULL; + else + return info; + +} + +struct xtm_file * xtm_open_file(char *filename) +{ + FILE *fd; + struct xtm_file *file = NULL; + struct stat buf; + + stat(filename, &buf); + + if ((fd = fopen(filename, "rb")) != NULL && buf.st_size > 104 && S_ISREG(buf.st_mode)) + { + + file = (struct xtm_file *) malloc(sizeof(struct xtm_file)); + file->fd = fd; + file->filename = filename; + file->filesize = buf.st_size; + + } + + return file; + +} + +void xtm_free_file_struct(struct xtm_file *xtm_file) +{ + if (xtm_file != NULL) + { + fclose(xtm_file->fd); + free(xtm_file); + } + +} + +struct xtm_file ** xtm_open_all_files(char **filenames) +{ + struct xtm_file **xtm_file_struct_tab; + char **current; + int i = 0; + + for (current = filenames; *current != NULL; current++) + i++; + + xtm_file_struct_tab = (struct xtm_file **) malloc((i + 1) * sizeof(struct xtm_file *)); + + xtm_file_struct_tab[i] = NULL; + + for (i = 0; filenames[i] != NULL; i++) + { + xtm_file_struct_tab[i] = xtm_open_file(filenames[i]); + } + + return xtm_file_struct_tab; +} + +void xtm_free_all_file_struct(struct xtm_file **xtm_file_struct_tab) +{ + struct xtm_file **current; + + for (current = xtm_file_struct_tab; *current != NULL; current++) + xtm_free_file_struct(*current); + /* free(xtm_file_struct_tab); */ +} + +static inline char * xtm_nbr_to_string(int nbr) +{ + char *str; + int centaines = 0, dixaines = 0, unites = 0; + + if (nbr < 1 || nbr > 999) + return NULL; + + if (nbr >= 100) + { + centaines = (nbr - (nbr % 100)) / 100; + nbr -= centaines * 100; + } + + if (nbr >= 10) + { + dixaines = (nbr - (nbr % 10)) / 10; + nbr -= dixaines * 10; + } + + unites = nbr; + + str = (char *) malloc(4 * sizeof(char)); + + str[0] = 48 + centaines; + str[1] = 48 + dixaines; + str[2] = 48 + unites; + str[3] = '\0'; + + return str; +} + +char ** xtm_get_all_filenames(char *filename_001_xtm, int nbr_of_files) +{ + char **xtm_files; + char *filename_xtm; + char *nbrstr; + int filename_len; + int i; + + + filename_len = strlen(filename_001_xtm); + + if (filename_len < 9) + return NULL; + else if (strcmp("001.xtm", &(filename_001_xtm[filename_len - 7])) != 0) + return NULL; + + + xtm_files = (char **) malloc((nbr_of_files++) * sizeof(char *)); + + for (i = 1; i < nbr_of_files; i++) + { + filename_xtm = (char *) malloc(filename_len * sizeof(char)); + memset(filename_xtm, 0, filename_len); + + strncpy(filename_xtm, filename_001_xtm, filename_len - 7); + + nbrstr = xtm_nbr_to_string(i); + strcat(filename_xtm, nbrstr); + free(nbrstr); + + strcat(filename_xtm, ".xtm"); + + xtm_files[i-1] = filename_xtm; + + + } + + xtm_files[nbr_of_files - 1] = NULL; + + return xtm_files; +} + +void xtm_free_all_filenames(char **xtm_filenames) +{ + char **current; + + for (current = xtm_filenames; *current != NULL; current++) + free(*current); + free(xtm_filenames); + +} + +int xtm_assemble(struct xtm_info *xtm_info_struct, struct xtm_file **xtm_files_tab, char *new_file) +{ + FILE *fd; + struct xtm_file **xtm_files_tab_2 = xtm_files_tab; + int i; + int nbr_of_files = 0; + int readable_bytes; + size_t size; + void *buffer; + + if ((fd = fopen(new_file, "wb")) == NULL) + return 1; + else if ( xtm_files_tab == NULL + || new_file == NULL + || xtm_info_struct == NULL + ) + return 1; + + + if (xtm_info_struct->md5_hash_enabled == 1) + { + while (xtm_files_tab_2++) + nbr_of_files++; + } + + buffer = malloc(BLK_SIZE); + + + for (i = 0; xtm_files_tab[i] != NULL; i++) + { + + readable_bytes = xtm_files_tab[i]->filesize; + + if (i == 0) + { + readable_bytes -= 104; + fseek(xtm_files_tab[i]->fd, 104, SEEK_SET); + } + else + { + fseek(xtm_files_tab[i]->fd, 0, SEEK_SET); + } + + if (xtm_info_struct->md5_hash_enabled == 1 && (i+1) == nbr_of_files) + readable_bytes -= nbr_of_files * 16; + + + while (readable_bytes > 0) + { + + if (readable_bytes > BLK_SIZE) + size = BLK_SIZE; + else + size = readable_bytes; + + readable_bytes -= size; + + fread(buffer, size, 1, xtm_files_tab[i]->fd); + fwrite(buffer, size, 1, fd); + + } + } + + free(buffer); + + return 0; + +} diff --git a/src/xtmfile.h b/src/xtmfile.h new file mode 100644 index 0000000..9463c39 --- /dev/null +++ b/src/xtmfile.h @@ -0,0 +1,154 @@ +/*************************************************************************** + * Copyright (C) 2006 by Hyacinthe Cartiaux * + * hyacinthe.cartiaux ( a ) free.fr * + * * + * 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 2 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, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ + +/** + * @file + * @brief Fichier de header, fournit les déclarations de fonctions de xtmfile.c. + * @author Hyacinthe Cartiaux + * @date Novembre / Décembre 2006 + */ + +#include +#include +#include +#include +#include +#include +#include + +/** Taille de bloc utilisée pour la copie des fichiers pendant l'assemblage. */ +#define BLK_SIZE 4096 + +/** + * @brief Structure contenant les informations de l'en-tête d'un fichier .001.xtm. + * @see xtm_get_info + */ +struct xtm_info { + /** Nombre de caractères de \c program_name. */ + uint8_t program_name_length; + /** Nom du programme utilisé pour créer le fichier. */ + char program_name[20]; + /** Nombre de caractères de la chaîne de caractère \c version. */ + uint8_t version_length; + /** Version du programme utilisé pour créer le fichier. */ + char version[4]; +/* double date; */ + /** Nombre de caractères de \c original_file_name. */ + uint8_t original_file_name_length; + /** Nom du fichier original. */ + char original_file_name[50]; + /** Indique si les sommes md5 des fichiers se trouvent à la fin du dernier fichier .xtm. Vaut 1 si elles sont présentes, 0 sinon. La somme md5 du dernier fichier est faite sans les bits utilisés pour stocker les sommes md5. */ + uint8_t md5_hash_enabled; + /** Nombre de fichier xtm. */ + uint32_t number_of_files; + /** Taille du fichier original. */ + uint64_t original_file_size; +}; + +/** + * @brief Structure permettant de stocker les informations d'un fichier .xtm. + * @see xtm_open_file + */ +struct xtm_file { + /** Nom du fichier. */ + char *filename; + /** Taille du fichier. */ + int filesize; + /** Pointeur de fichier. */ + FILE *fd; +}; + +/** + * Permet de récupérer les informations des en-têtes d'un fichier 001.xtm. + * @param fd Pointeur sur un fichier 001.xtm. + * @return Un pointeur sur une structure xtm_info, \c NULL si la lecture des informations est impossible. + * @see xtm_open_file + */ +struct xtm_info * xtm_get_info(FILE *fd); + + +/** + * Ouvre un fichier en mode "rb". + * @param filename Nom du fichier à ouvrir. + * @return Retourne une structure xtm_file contenant les informations sur le fichier ouvert ou \c NULL si le fichier n'a pas pu être ouvert. + * @see xtm_free_file_struct + * @see xtm_open_all_files + */ +struct xtm_file * xtm_open_file(char *filename); + +/** + * Ferme le fichier et libère la mémoire allouée pour une structure xtm_file. + * @param xtm_file_struct Pointeur vers une structure xtm_file. + * @see xtm_open_file + */ +void xtm_free_file_struct(struct xtm_file *xtm_file_struct); + + +/** + * Ouvre tous les fichiers donnés en paramètre. + * @param filenames Tableau de chaînes de caractères contenant les noms des fichiers xtm. Le tableau doit se terminer par \c NULL. + * @return Un tableau de pointeur sur des structures xtm_file correspondant aux noms de fichiers passés en paramètre, dans le même ordre.\n Le tableau se termine par \c NULL. \n Si un fichier n'a pas pu être ouvert, le pointeur correspondant à sa position dans le tableau est \c NULL. + * @see xtm_free_all_file_struct + * @see xtm_open_file + */ +struct xtm_file ** xtm_open_all_files(char **filenames); + +/** + * Ferme les fichiers et libère la mémoire allouée pour les structures xtm_file pointées par les éléments du tableau.\n La fonction s'arrête lorsqu'elle rencontre un pointeur \c NULL dans le tableau \c xtm_file_struct_tab. + * @param xtm_file_struct_tab Tableau de pointeurs sur des structures xtm_file. Le tableau doit se terminer par \c NULL. + * @see xtm_open_all_files. + * @see xtm_free_file_struct + */ +void xtm_free_all_file_struct(struct xtm_file **xtm_file_struct_tab); + +/** + * Permet de convertir un nombre en chaîne de caractères. + * @param nbr Nombre entre 1 et 999. + * @return Chaîne de 3 caractères dans le format xxx où xxx est un nombre de trois chiffres comprenant les zéros inutiles. Retourne \c NULL si le nombre passé en paramètre n'appartient pas à l'intervale [1;999]. + */ +static inline char * xtm_nbr_to_string(int nbr); + +/** + * Génère les noms des fichiers xtm. + * @param filename_001_xtm Nom du premier fichier .001.xtm. + * @param nbr_of_files Nombre de fichiers xtm. + * @return Tableau de chaîne de caractères, chaque chaîne est le nom d'un fichier xtm. Le tableau se termine par \c NULL. + * @see xtm_free_all_filenames. + */ +char ** xtm_get_all_filenames(char *filename_001_xtm, int nbr_of_files); + +/** + * Libère la mémoire allouées pour un tableau de chaîne de caractères et les chaînes de caractères qu'il pointe. + * @param xtm_filenames Tableau de chaînes de caractères, terminé par la valeur \c NULL. + * @see xtm_get_all_filenames. + */ +void xtm_free_all_filenames(char **xtm_filenames); + + +/** + * Assemble les fichiers en .xxx.xtm. + * @param xtm_info_struct Pointeur sur une structure xtm_info extraite du premier fichier xtm avec la fonction \c xtm_get_info. + * @param xtm_files_tab Tableau de pointeurs sur des structures xtm_file, obtenu avec la fonction \c xtm_open_all_files et terminé par \c NULL. + * @param new_file Nom du fichier d'origine (xtm_info.original_file_name). Si ce fichier existe, il sera écrasé. + * @return 0 si l'assemblage a bien été effectué, 1 en cas d'erreur. + * @see xtm_open_all_files + * @see xtm_get_info + */ +int xtm_assemble(struct xtm_info *xtm_info_struct, struct xtm_file **xtm_files_tab, char *new_file); diff --git a/xtm.1.gz b/xtm.1.gz new file mode 100644 index 0000000..92c473f Binary files /dev/null and b/xtm.1.gz differ