mirror of
https://github.com/moparisthebest/pacman
synced 2024-11-18 07:15:00 -05:00
342 lines
8.3 KiB
C
342 lines
8.3 KiB
C
/*
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* package.c
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*
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* Copyright (c) 2002-2005 by Judd Vinet <jvinet@zeroflux.org>
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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; either version 2 of the License, or
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* (at your option) any later version.
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <limits.h>
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#include <fcntl.h>
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#include <string.h>
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#include <libtar.h>
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#include <zlib.h>
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/* pacman */
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#include "log.h"
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#include "util.h"
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#include "error.h"
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#include "list.h"
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#include "package.h"
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#include "alpm.h"
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pmpkg_t *pkg_new()
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{
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pmpkg_t* pkg = NULL;
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MALLOC(pkg, sizeof(pmpkg_t));
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pkg->name[0] = '\0';
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pkg->version[0] = '\0';
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pkg->desc[0] = '\0';
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pkg->url[0] = '\0';
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pkg->license[0] = '\0';
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pkg->builddate[0] = '\0';
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pkg->installdate[0] = '\0';
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pkg->packager[0] = '\0';
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pkg->md5sum[0] = '\0';
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pkg->arch[0] = '\0';
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pkg->size = 0;
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pkg->scriptlet = 0;
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pkg->force = 0;
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pkg->reason = PM_PKG_REASON_EXPLICIT;
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pkg->requiredby = NULL;
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pkg->conflicts = NULL;
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pkg->files = NULL;
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pkg->backup = NULL;
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pkg->depends = NULL;
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pkg->groups = NULL;
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pkg->provides = NULL;
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pkg->replaces = NULL;
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/* internal */
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pkg->origin = 0;
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pkg->data = NULL;
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pkg->infolevel = 0;
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return(pkg);
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}
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void pkg_free(pmpkg_t *pkg)
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{
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if(pkg == NULL) {
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return;
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}
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FREELIST(pkg->files);
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FREELIST(pkg->backup);
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FREELIST(pkg->depends);
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FREELIST(pkg->conflicts);
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FREELIST(pkg->requiredby);
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FREELIST(pkg->groups);
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FREELIST(pkg->provides);
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FREELIST(pkg->replaces);
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if(pkg->origin == PKG_FROM_FILE) {
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FREE(pkg->data);
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}
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free(pkg);
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return;
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}
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/* Parses the package description file for the current package
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*
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* Returns: 0 on success, 1 on error
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*
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*/
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static int parse_descfile(char *descfile, pmpkg_t *info, int output)
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{
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FILE* fp = NULL;
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char line[PATH_MAX+1];
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char* ptr = NULL;
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char* key = NULL;
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int linenum = 0;
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if((fp = fopen(descfile, "r")) == NULL) {
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_alpm_log(PM_LOG_ERROR, "could not open file %s", descfile);
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return(-1);
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}
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while(!feof(fp)) {
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fgets(line, PATH_MAX, fp);
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linenum++;
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_alpm_strtrim(line);
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if(strlen(line) == 0 || line[0] == '#') {
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continue;
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}
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if(output) {
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_alpm_log(PM_LOG_DEBUG, "%s", line);
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}
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ptr = line;
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key = strsep(&ptr, "=");
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if(key == NULL || ptr == NULL) {
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_alpm_log(PM_LOG_ERROR, "%s: syntax error in description file line %d",
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info->name[0] != '\0' ? info->name : "error", linenum);
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} else {
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_alpm_strtrim(key);
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key = _alpm_strtoupper(key);
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_alpm_strtrim(ptr);
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if(!strcmp(key, "PKGNAME")) {
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STRNCPY(info->name, ptr, sizeof(info->name));
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} else if(!strcmp(key, "PKGVER")) {
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STRNCPY(info->version, ptr, sizeof(info->version));
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} else if(!strcmp(key, "PKGDESC")) {
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STRNCPY(info->desc, ptr, sizeof(info->desc));
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} else if(!strcmp(key, "GROUP")) {
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info->groups = pm_list_add(info->groups, strdup(ptr));
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} else if(!strcmp(key, "URL")) {
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STRNCPY(info->url, ptr, sizeof(info->url));
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} else if(!strcmp(key, "LICENSE")) {
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STRNCPY(info->license, ptr, sizeof(info->license));
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} else if(!strcmp(key, "BUILDDATE")) {
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STRNCPY(info->builddate, ptr, sizeof(info->builddate));
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} else if(!strcmp(key, "INSTALLDATE")) {
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STRNCPY(info->installdate, ptr, sizeof(info->installdate));
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} else if(!strcmp(key, "PACKAGER")) {
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STRNCPY(info->packager, ptr, sizeof(info->packager));
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} else if(!strcmp(key, "ARCH")) {
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STRNCPY(info->arch, ptr, sizeof(info->arch));
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} else if(!strcmp(key, "SIZE")) {
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char tmp[32];
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STRNCPY(tmp, ptr, sizeof(tmp));
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info->size = atol(tmp);
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} else if(!strcmp(key, "DEPEND")) {
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info->depends = pm_list_add(info->depends, strdup(ptr));
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} else if(!strcmp(key, "CONFLICT")) {
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info->conflicts = pm_list_add(info->conflicts, strdup(ptr));
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} else if(!strcmp(key, "REPLACES")) {
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info->replaces = pm_list_add(info->replaces, strdup(ptr));
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} else if(!strcmp(key, "PROVIDES")) {
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info->provides = pm_list_add(info->provides, strdup(ptr));
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} else if(!strcmp(key, "BACKUP")) {
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info->backup = pm_list_add(info->backup, strdup(ptr));
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} else {
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_alpm_log(PM_LOG_ERROR, "%s: syntax error in description file line %d",
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info->name[0] != '\0' ? info->name : "error", linenum);
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}
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}
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line[0] = '\0';
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}
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fclose(fp);
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unlink(descfile);
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return(0);
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}
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pmpkg_t *pkg_load(char *pkgfile)
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{
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char *expath;
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int i;
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int config = 0;
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int filelist = 0;
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int scriptcheck = 0;
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TAR *tar;
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pmpkg_t *info = NULL;
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tartype_t gztype = {
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(openfunc_t)_alpm_gzopen_frontend,
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(closefunc_t)gzclose,
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(readfunc_t)gzread,
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(writefunc_t)gzwrite
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};
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if(pkgfile == NULL) {
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RET_ERR(PM_ERR_WRONG_ARGS, NULL);
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}
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if(tar_open(&tar, pkgfile, &gztype, O_RDONLY, 0, TAR_GNU) == -1) {
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RET_ERR(PM_ERR_NOT_A_FILE, NULL);
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}
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info = pkg_new();
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if(info == NULL) {
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tar_close(tar);
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RET_ERR(PM_ERR_MEMORY, NULL);
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}
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for(i = 0; !th_read(tar); i++) {
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if(config && filelist && scriptcheck) {
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/* we have everything we need */
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break;
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}
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if(!strcmp(th_get_pathname(tar), ".PKGINFO")) {
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char *descfile;
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/* extract this file into /tmp. it has info for us */
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descfile = strdup("/tmp/alpm_XXXXXX");
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mkstemp(descfile);
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tar_extract_file(tar, descfile);
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/* parse the info file */
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if(parse_descfile(descfile, info, 0) == -1) {
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goto error;
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}
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if(!strlen(info->name)) {
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_alpm_log(PM_LOG_ERROR, "missing package name in %s", pkgfile);
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goto error;
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}
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if(!strlen(info->version)) {
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_alpm_log(PM_LOG_ERROR, "missing package version in %s", pkgfile);
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goto error;
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}
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config = 1;
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FREE(descfile);
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continue;
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} else if(!strcmp(th_get_pathname(tar), "._install") || !strcmp(th_get_pathname(tar), ".INSTALL")) {
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info->scriptlet = 1;
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scriptcheck = 1;
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} else if(!strcmp(th_get_pathname(tar), ".FILELIST")) {
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/* Build info->files from the filelist */
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FILE *fp;
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char *fn;
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char *str;
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MALLOC(str, PATH_MAX);
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fn = strdup("/tmp/alpm_XXXXXX");
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mkstemp(fn);
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tar_extract_file(tar, fn);
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fp = fopen(fn, "r");
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while(!feof(fp)) {
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if(fgets(str, PATH_MAX, fp) == NULL) {
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continue;
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}
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_alpm_strtrim(str);
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info->files = pm_list_add(info->files, strdup(str));
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}
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FREE(str);
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fclose(fp);
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if(unlink(fn)) {
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_alpm_log(PM_LOG_WARNING, "could not remove tempfile %s", fn);
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}
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FREE(fn);
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filelist = 1;
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continue;
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} else {
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scriptcheck = 1;
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if(!filelist) {
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/* no .FILELIST present in this package.. build the filelist the */
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/* old-fashioned way, one at a time */
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expath = strdup(th_get_pathname(tar));
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info->files = pm_list_add(info->files, expath);
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}
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}
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if(TH_ISREG(tar) && tar_skip_regfile(tar)) {
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_alpm_log(PM_LOG_ERROR, "bad package file in %s", pkgfile);
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goto error;
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}
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expath = NULL;
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}
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tar_close(tar);
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if(!config) {
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_alpm_log(PM_LOG_ERROR, "missing package info file in %s", pkgfile);
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goto error;
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}
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/* internal */
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info->origin = PKG_FROM_FILE;
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info->data = strdup(pkgfile);
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info->infolevel = 0xFF;
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return(info);
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error:
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FREEPKG(info);
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tar_close(tar);
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return(NULL);
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}
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/* Helper function for sorting packages
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*/
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int pkg_cmp(const void *p1, const void *p2)
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{
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pmpkg_t *pkg1 = (pmpkg_t *)p1;
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pmpkg_t *pkg2 = (pmpkg_t *)p2;
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return(strcmp(pkg1->name, pkg2->name));
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}
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/* Test for existence of a package in a PMList*
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* of pmpkg_t*
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*
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* returns: 0 for no match
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* 1 for identical match
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* -1 for name-only match (version mismatch)
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*/
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int pkg_isin(pmpkg_t *needle, PMList *haystack)
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{
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PMList *lp;
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if(needle == NULL || haystack == NULL) {
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return(0);
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}
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for(lp = haystack; lp; lp = lp->next) {
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pmpkg_t *info = lp->data;
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if(info && !strcmp(info->name, needle->name)) {
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if(!strcmp(info->version, needle->version)) {
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return(1);
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}
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return(-1);
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}
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}
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return(0);
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}
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/* vim: set ts=2 sw=2 noet: */
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