mirror of
https://github.com/fail0verflow/switch-coreboot.git
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is a base change to make the whole linuxbios.rom a lar file. * fix a whole lot of lar bugs (that never showed up in production yet) * add proper option parsing to lar * add verbose option * add option to automatically pad lar archive to a certain size * add proper file handling (specifying a directory will now pack all files in that directory into the lar, instead of a 4k dummy file) * catch lots of user errors, less implicit assumptions * merge all header files into lib.h (except lar.h which is needed by other programs using the lar format). lib.h is still very small. * print errors to stderr * (slipped in) copy linuxbios.rom to bios.bin for qemu ;-) * adapt arch/x86/Makefile to use the new features. * set version to 0.9 * lots of security bugs fixed (thanks to Uwe!) * catch low memory conditions in strdup Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Uwe Hermann <uwe@hermann-uwe.de> git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@234 f3766cd6-281f-0410-b1cd-43a5c92072e9
231 lines
4.4 KiB
C
231 lines
4.4 KiB
C
/*
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* lar - LinuxBIOS archiver
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*
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* Copyright (C) 2006-2007 coresystems GmbH
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* Written by Stefan Reinauer <stepan@coresystems.de> for coresystems GmbH.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <dirent.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include "lib.h"
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#define MAX_PATH 1024
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static struct file * files = NULL;
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int mkdirp(const char *dirpath)
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{
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char *pos, *currpath, *path;
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char cwd[MAX_PATH];
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int ret = 0;
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path = strdup(dirpath);
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if (!path) {
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fprintf(stderr, "Out of memory.\n");
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exit(1);
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}
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currpath = path;
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if (!getcwd(cwd, MAX_PATH)) {
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free(path);
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fprintf(stderr, "Error getting cwd.\n");
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return -1;
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}
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do {
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pos = index(currpath, '/');
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if (pos)
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*pos = 0;
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/* printf("cp=%s\n", currpath); */
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mkdir(currpath, 0755);
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ret = chdir(currpath);
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if (pos)
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currpath = pos + 1;
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} while (pos && !ret && strlen(currpath));
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chdir(cwd);
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free(path);
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return ret;
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}
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static int handle_directory(const char *name)
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{
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int ret=-1, n;
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struct dirent **namelist;
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n = scandir(name, &namelist, 0, alphasort);
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if(n < 0) {
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fprintf(stderr, "Could not enter directory %s\n", name);
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} else {
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while (n--) {
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char fullname[MAX_PATH];
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fullname[0] = '\0';
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if (strncmp("..", namelist[n]->d_name, 3) &&
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strncmp(".", namelist[n]->d_name, 2)) {
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strncpy(fullname, name, MAX_PATH);
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if(name[(strlen(name))-1] != '/') {
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strncat(fullname, "/", MAX_PATH);
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}
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strncat(fullname, namelist[n]->d_name, MAX_PATH);
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add_files(fullname);
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}
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free(namelist[n]);
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}
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free(namelist);
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ret=0;
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}
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return ret;
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}
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/*
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* Add physically existing files to the file list.
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* This function is used when an archive is created.
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*/
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int add_files(const char *name)
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{
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struct stat filestat;
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int ret = -1;
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/* printf("... add_files %s\n", name); */
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if (stat(name, &filestat) == -1) {
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fprintf(stderr, "Error getting file attributes of %s\n", name);
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return -1;
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}
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if (S_ISCHR(filestat.st_mode) || S_ISBLK(filestat.st_mode)) {
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fprintf(stderr, "Device files are not supported: %s\n", name);
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}
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if (S_ISFIFO(filestat.st_mode)) {
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fprintf(stderr, "FIFOs are not supported: %s\n", name);
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}
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if (S_ISSOCK(filestat.st_mode)) {
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fprintf(stderr, "Sockets are not supported: %s\n", name);
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}
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if (S_ISLNK(filestat.st_mode)) {
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fprintf(stderr, "Symbolic links are not supported: %s\n", name);
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}
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// Is it a directory?
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if (S_ISDIR(filestat.st_mode)) {
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ret=handle_directory(name);
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}
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// Is it a regular file?
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if (S_ISREG(filestat.st_mode)) {
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struct file *tmpfile;
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/* printf("... adding %s\n", name); */
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tmpfile = malloc(sizeof(struct file));
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if (!tmpfile) {
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fprintf(stderr, "Out of memory.\n");
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exit(1);
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}
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tmpfile->name = strdup(name);
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if(!tmpfile->name) {
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fprintf(stderr, "Out of memory.\n");
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exit(1);
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}
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tmpfile->next = files;
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files = tmpfile;
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ret = 0;
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}
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return ret;
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}
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/*
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* Add files or directories as specified to the file list.
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* This function is used when an archive is listed or extracted.
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*/
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int add_file_or_directory(const char *name)
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{
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struct file *tmpfile;
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tmpfile = malloc(sizeof(struct file));
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if (!tmpfile) {
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fprintf(stderr, "Out of memory.\n");
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exit(1);
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}
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tmpfile->name = strdup(name);
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if (!tmpfile->name) {
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fprintf(stderr, "Out of memory.\n");
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exit(1);
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}
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tmpfile->next = files;
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files=tmpfile;
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return 0;
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}
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struct file *get_files(void)
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{
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return files;
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}
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void free_files(void)
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{
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struct file * temp;
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while (files) {
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temp=files;
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files=files->next;
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free(temp->name);
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free(temp);
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}
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}
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#ifdef DEBUG
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int list_files(void)
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{
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struct file * walk = files;
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printf ("File list:\n");
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while (walk) {
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printf("- %s\n", walk->name);
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walk=walk->next;
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}
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printf ("-----\n");
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return 0;
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}
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#endif
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