diff options
Diffstat (limited to 'payloads/bayou/util/pbuilder/create.c')
| -rw-r--r-- | payloads/bayou/util/pbuilder/create.c | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/payloads/bayou/util/pbuilder/create.c b/payloads/bayou/util/pbuilder/create.c new file mode 100644 index 0000000000..313283c302 --- /dev/null +++ b/payloads/bayou/util/pbuilder/create.c @@ -0,0 +1,200 @@ +/* + * This file is part of the bayou project. + * + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * 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 St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <fcntl.h> +#include <libgen.h> +#include "liblar.h" +#include "pbuilder.h" + +void do_lzma_compress(char *in, int in_len, char *out, int *out_len); + +int add_bpt_to_lar(struct LAR *lar, struct config *config) +{ + char *buffer; + int ret, i, len = sizeof(struct bpt_config); + struct bpt_config *cfg; + struct LARAttr attr; + char *ptr; + + for (i = 0; i < config->n_entries; i++) { + len += sizeof(struct bpt_pentry); + + if (config->entries[i]->type != BPT_TYPE_CHAIN) + len += ((strlen(config->entries[i]->larname) + + 15) & ~0x0F); + } + + buffer = calloc(len, 1); + + if (buffer == NULL) + return -1; + + cfg = (struct bpt_config *)buffer; + + cfg->id = BPT_ID; + cfg->timeout = config->timeout; + cfg->entries = config->n_entries; + + ptr = buffer + sizeof(struct bpt_config); + + for (i = 0; i < config->n_entries; i++) { + int nlen = 0; + struct bpt_pentry *pentry = (struct bpt_pentry *)ptr; + + pentry->index = config->entries[i]->index; + pentry->parent = config->entries[i]->parent; + pentry->type = config->entries[i]->type; + pentry->flags = config->entries[i]->flags; + + strncpy((char *)pentry->title, + (char *)config->entries[i]->title, + sizeof(pentry->title)); + + if (config->entries[i]->type != BPT_TYPE_CHAIN) { + nlen = strlen(config->entries[i]->larname); + nlen = (nlen + 15) & ~0x0F; + + strcpy((char *)(ptr + sizeof(struct bpt_pentry)), + config->entries[i]->larname); + + pentry->nlen = nlen; + } + + ptr += sizeof(struct bpt_pentry); + + if (config->entries[i]->type != BPT_TYPE_CHAIN) + ptr += nlen; + } + + LAR_SetAttrs(&attr, "bayou_payload_table", ALGO_NONE); + + ret = LAR_AppendBuffer(lar, (unsigned char *)buffer, len, &attr); + free(buffer); + return ret; +} + +struct lfile { + char *file; + char *larname; +}; + +int n_lfiles; + +int create_lar_from_config(const char *input, const char *output) +{ + struct config config; + FILE *stream; + struct LAR *lar; + struct LARAttr attr; + int i, j, ret = -1; + struct lfile *lfiles; + + stream = fopen(input, "r"); + + if (stream == NULL) { + warn("E: Couldn't open %s for reading\n", input); + return -1; + } + + memset(&config, 0, sizeof(config)); + + parseconfig(stream, &config); + fclose(stream); + + lar = LAR_Create(output); + + if (lar == NULL) { + warn("E: Couldn't create a new lar file\n"); + return -1; + } + + LAR_SetCompressionFuncs(lar, ALGO_LZMA, do_lzma_compress, NULL); + + lfiles = calloc(sizeof(struct lfile), config.n_entries); + + if (lfiles == NULL) { + warn("E: Couldn't allocate memory: %m\n"); + return -1; + } + + for (i = 0; i < config.n_entries; i++) { + /* Master chain entries don't have files associated with them. */ + if (config.entries[i]->type == BPT_TYPE_CHAIN) + continue; + + if (access(config.entries[i]->file, R_OK)) { + warn("E: Could not find file %s\n", + config.entries[i]->file); + + goto err; + } + + if (config.entries[i]->larname == NULL) { + config.entries[i]->larname = + strdup(basename(config.entries[i]->file)); + + if (config.entries[i]->larname == NULL) { + warn("E: Could not allocate memory for the default name\n"); + goto err; + } + } + + /* + * Add the file to the list of files to add to the LAR - skip + * any duplicates, but be on the lookout for the same LAR name + * attached to a different file. + */ + for (j = 0; j < n_lfiles; j++) { + if (!strcmp(lfiles[j].larname, + config.entries[i]->larname)) { + if (strcmp(lfiles[j].file, + config.entries[i]->file)) { + warn("E: LAR name '%s' has already been used\n", config.entries[i]->larname); + goto err; + } + break; + } + } + + if (j == n_lfiles) { + lfiles[n_lfiles].file = config.entries[i]->file; + lfiles[n_lfiles++].larname = config.entries[i]->larname; + } + } + + /* Add all the files to the LAR. */ + for (i = 0; i < n_lfiles; i++) { + LAR_SetAttrs(&attr, lfiles[i].larname, ALGO_LZMA); + + if (LAR_AppendFile(lar, lfiles[i].file, &attr)) { + warn("E: Could not add %s to the LAR\n", + lfiles[i].file); + goto err; + } + } + + ret = add_bpt_to_lar(lar, &config); + +err: + LAR_Close(lar); + return ret; +} |