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-rw-r--r--pkg_parse.c366
1 files changed, 366 insertions, 0 deletions
diff --git a/pkg_parse.c b/pkg_parse.c
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+++ b/pkg_parse.c
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+/* pkg_parse.c - the itsy package management system
+
+ Steven M. Ayer
+
+ Copyright (C) 2002 Compaq Computer Corporation
+
+ 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, 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.
+*/
+
+#include "ipkg.h"
+#include <errno.h>
+#include <ctype.h>
+
+#include "pkg.h"
+#include "ipkg_utils.h"
+#include "pkg_parse.h"
+
+int isGenericFieldType(char * type, char * line)
+{
+ if(!strncmp(line, type, strlen(type)))
+ return 1;
+ return 0;
+}
+
+char * parseGenericFieldType(char * type, char * raw)
+{
+ char * field_value = raw + (strlen(type) + 1);
+ return trim_alloc(field_value);
+}
+
+void parseStatus(pkg_t *pkg, char * raw)
+{
+ char sw_str[64], sf_str[64], ss_str[64];
+
+ sscanf(raw, "Status: %s %s %s", sw_str, sf_str, ss_str);
+ pkg->state_want = pkg_state_want_from_str(sw_str);
+ pkg->state_flag = pkg_state_flag_from_str(sf_str);
+ pkg->state_status = pkg_state_status_from_str(ss_str);
+}
+
+char ** parseDependsString(char * raw, int * depends_count)
+{
+ char ** depends = NULL;
+ int line_count = 0;
+ char buff[2048], * dest;
+
+ while(raw && *raw && !isspace(*raw)) {
+ raw++;
+ }
+
+ if(line_is_blank(raw)){
+ *depends_count = line_count;
+ return NULL;
+ }
+ while(raw && *raw){
+ depends = (char **)realloc(depends, sizeof(char *) * (line_count + 1));
+
+ while(isspace(*raw)) raw++;
+
+ dest = buff;
+ while((*raw != ',') && *raw)
+ *dest++ = *raw++;
+
+ *dest = '\0';
+ depends[line_count] = trim_alloc(buff);
+ if(depends[line_count] ==NULL)
+ return NULL;
+ line_count++;
+ if(*raw == ',')
+ raw++;
+ }
+ *depends_count = line_count;
+ return depends;
+}
+
+void parseConffiles(pkg_t * pkg, char * raw)
+{
+ char file_name[1048], md5sum[1048]; /* please tell me there aren't any longer that 1k */
+
+ if(!strncmp(raw, "Conffiles:", 10))
+ raw += strlen("Conffiles:");
+
+ while(*raw && (sscanf(raw, "%s%s", file_name, md5sum) == 2)){
+ conffile_list_append(&pkg->conffiles, file_name, md5sum);
+ /* fprintf(stderr, "%s %s ", file_name, md5sum);*/
+ while (*raw && isspace(*raw)) {
+ raw++;
+ }
+ raw += strlen(file_name);
+ while (*raw && isspace(*raw)) {
+ raw++;
+ }
+ raw += strlen(md5sum);
+ }
+}
+
+int parseVersion(pkg_t *pkg, char *raw)
+{
+ char *colon, *eepochcolon;
+#ifdef USE_DEBVERSION
+ char *hyphen;
+#endif
+ unsigned long epoch;
+
+ if (!*raw) {
+ fprintf(stderr, "%s: ERROR: version string is empty", __FUNCTION__);
+ return EINVAL;
+ }
+
+ if (strncmp(raw, "Version:", 8) == 0) {
+ raw += 8;
+ }
+ while (*raw && isspace(*raw)) {
+ raw++;
+ }
+
+ colon= strchr(raw,':');
+ if (colon) {
+ epoch= strtoul(raw,&eepochcolon,10);
+ if (colon != eepochcolon) {
+ fprintf(stderr, "%s: ERROR: epoch in version is not number", __FUNCTION__);
+ return EINVAL;
+ }
+ if (!*++colon) {
+ fprintf(stderr, "%s: ERROR: nothing after colon in version number", __FUNCTION__);
+ return EINVAL;
+ }
+ raw= colon;
+ pkg->epoch= epoch;
+ } else {
+ pkg->epoch= 0;
+ }
+
+ pkg->revision = "";
+ pkg->familiar_revision = "";
+
+ pkg->version= malloc(strlen(raw)+1);
+ if ( pkg->version == NULL ) {
+ fprintf(stderr, "%s: out of memory \n", __FUNCTION__);
+ return ENOMEM;
+ }
+ strcpy(pkg->version, raw);
+
+#ifdef USE_DEBVERSION
+ hyphen= strrchr(pkg->version,'-');
+
+ if (hyphen) {
+ *hyphen++= 0;
+ if (strncmp("fam", hyphen, 3) == 0) {
+ pkg->familiar_revision=hyphen+3;
+ hyphen= strrchr(pkg->version,'-');
+ if (hyphen) {
+ *hyphen++= 0;
+ pkg->revision = hyphen;
+ }
+ } else {
+ pkg->revision = hyphen;
+ }
+ }
+#endif
+
+/*
+ fprintf(stderr,"Parsed version: %lu, %s, %s, %s\n",
+ pkg->epoch,
+ pkg->version,
+ pkg->revision,
+ pkg->familiar_revision);
+*/
+
+ return 0;
+}
+
+
+/* This code is needed to insert in first position the keyword for the aligning bug */
+
+int alterProvidesLine(char *raw, char *temp)
+{
+
+
+ if (!*raw) {
+ fprintf(stderr, "%s: ERROR: Provides string is empty", __FUNCTION__);
+ return -EINVAL;
+ }
+
+ if ( temp == NULL ) {
+ fprintf(stderr, "%s: out of memory \n", __FUNCTION__);
+ return -ENOMEM;
+ }
+
+ if (strncmp(raw, "Provides:", 9) == 0) {
+ raw += 9;
+ }
+ while (*raw && isspace(*raw)) {
+ raw++;
+ }
+
+ snprintf ( temp, 35, "Provides: ipkg_internal_use_only, "); /* First part of the line */
+ while (*raw) {
+ strncat( temp, raw++, 1);
+ }
+ return 0;
+
+}
+
+/* Some random thoughts from Carl:
+
+ This function could be considerably simplified if we just kept
+ an array of all the generic string-valued field names, and looped
+ through those looking for a match. Also, these fields could perhaps
+ be stored in the package as an array as well, (or, probably better,
+ as an nv_pair_list_t).
+
+ Fields which require special parsing or storage, (such as Depends:
+ and Status:) could be handled as they are now.
+*/
+/* XXX: FEATURE: The Suggests: field needs to be changed from a string
+ to a dependency list. And, since we already have
+ Depends/Pre-Depends and need to add Conflicts, Recommends, and
+ Enhances, perhaps we could generalize all of these and save some
+ code duplication.
+*/
+int pkg_parse_raw(pkg_t *pkg, char ***raw, pkg_src_t *src, pkg_dest_t *dest)
+{
+ int reading_conffiles, reading_description;
+ int pkg_false_provides=1;
+ char ** lines;
+ char * provide=NULL;
+
+ pkg->src = src;
+ pkg->dest = dest;
+
+ reading_conffiles = reading_description = 0;
+
+ for (lines = *raw; *lines; lines++) {
+ /* fprintf(stderr, "PARSING %s\n", *lines);*/
+ if(isGenericFieldType("Package:", *lines))
+ pkg->name = parseGenericFieldType("Package", *lines);
+ else if(isGenericFieldType("Architecture:", *lines))
+ pkg->architecture = parseGenericFieldType("Architecture", *lines);
+ else if(isGenericFieldType("Filename:", *lines))
+ pkg->filename = parseGenericFieldType("Filename", *lines);
+ else if(isGenericFieldType("Section:", *lines))
+ pkg->section = parseGenericFieldType("Section", *lines);
+ else if(isGenericFieldType("MD5sum:", *lines))
+ pkg->md5sum = parseGenericFieldType("MD5sum", *lines);
+ /* The old ipkg wrote out status files with the wrong case for MD5sum,
+ let's parse it either way */
+ else if(isGenericFieldType("MD5Sum:", *lines))
+ pkg->md5sum = parseGenericFieldType("MD5Sum", *lines);
+ else if(isGenericFieldType("Size:", *lines))
+ pkg->size = parseGenericFieldType("Size", *lines);
+ else if(isGenericFieldType("Source:", *lines))
+ pkg->source = parseGenericFieldType("Source", *lines);
+ else if(isGenericFieldType("Installed-Size:", *lines))
+ pkg->installed_size = parseGenericFieldType("Installed-Size", *lines);
+ else if(isGenericFieldType("Installed-Time:", *lines)) {
+ char *time_str = parseGenericFieldType("Installed-Time", *lines);
+ pkg->installed_time = strtoul(time_str, NULL, 0);
+ } else if(isGenericFieldType("Priority:", *lines))
+ pkg->priority = parseGenericFieldType("Priority", *lines);
+ else if(isGenericFieldType("Essential:", *lines)) {
+ char *essential_value;
+ essential_value = parseGenericFieldType("Essential", *lines);
+ if (strcmp(essential_value, "yes") == 0) {
+ pkg->essential = 1;
+ }
+ free(essential_value);
+ }
+ else if(isGenericFieldType("Status", *lines))
+ parseStatus(pkg, *lines);
+ else if(isGenericFieldType("Version", *lines))
+ parseVersion(pkg, *lines);
+ else if(isGenericFieldType("Maintainer", *lines))
+ pkg->maintainer = parseGenericFieldType("Maintainer", *lines);
+ else if(isGenericFieldType("Conffiles", *lines)){
+ parseConffiles(pkg, *lines);
+ reading_conffiles = 1;
+ }
+ else if(isGenericFieldType("Description", *lines)) {
+ pkg->description = parseGenericFieldType("Description", *lines);
+ reading_conffiles = 0;
+ reading_description = 1;
+ }
+
+ else if(isGenericFieldType("Provides", *lines)){
+/* Here we add the internal_use to align the off by one problem between provides_str and provides */
+ provide = (char * ) malloc(strlen(*lines)+ 35 ); /* Preparing the space for the new ipkg_internal_use_only */
+ if ( alterProvidesLine(*lines,provide) ){
+ return EINVAL;
+ }
+ pkg->provides_str = parseDependsString( provide, &pkg->provides_count);
+/* Let's try to hack a bit here.
+ The idea is that if a package has no Provides, we would add one generic, to permit the check of dependencies
+ in alot of other places. We will remove it before writing down the status database */
+ pkg_false_provides=0;
+ free(provide);
+ }
+
+ else if(isGenericFieldType("Depends", *lines))
+ pkg->depends_str = parseDependsString(*lines, &pkg->depends_count);
+ else if(isGenericFieldType("Pre-Depends", *lines))
+ pkg->pre_depends_str = parseDependsString(*lines, &pkg->pre_depends_count);
+ else if(isGenericFieldType("Recommends", *lines))
+ pkg->recommends_str = parseDependsString(*lines, &pkg->recommends_count);
+ else if(isGenericFieldType("Suggests", *lines))
+ pkg->suggests_str = parseDependsString(*lines, &pkg->suggests_count);
+ /* Abhaya: support for conflicts */
+ else if(isGenericFieldType("Conflicts", *lines))
+ pkg->conflicts_str = parseDependsString(*lines, &pkg->conflicts_count);
+ else if(isGenericFieldType("Replaces", *lines))
+ pkg->replaces_str = parseDependsString(*lines, &pkg->replaces_count);
+ else if(line_is_blank(*lines)) {
+ lines++;
+ break;
+ }
+ else if(**lines == ' '){
+ if(reading_description) {
+ /* we already know it's not blank, so the rest of description */
+ pkg->description = realloc(pkg->description,
+ strlen(pkg->description)
+ + 1 + strlen(*lines) + 1);
+ strcat(pkg->description, "\n");
+ strcat(pkg->description, (*lines));
+ }
+ else if(reading_conffiles)
+ parseConffiles(pkg, *lines);
+ }
+ }
+ *raw = lines;
+/* If the ipk has not a Provides line, we insert our false line */
+ if ( pkg_false_provides==1)
+ pkg->provides_str = parseDependsString ((char *)"Provides: ipkg_internal_use_only ", &pkg->provides_count);
+
+ if (pkg->name) {
+ return 0;
+ } else {
+ return EINVAL;
+ }
+}
+
+int pkg_valorize_other_field(pkg_t *pkg, char ***raw)
+{
+ char ** lines;
+
+ for (lines = *raw; *lines; lines++) {
+ if(isGenericFieldType("Essential:", *lines)) {
+ char *essential_value;
+ essential_value = parseGenericFieldType("Essential", *lines);
+ if (strcmp(essential_value, "yes") == 0) {
+ pkg->essential = 1;
+ }
+ free(essential_value);
+ }
+ }
+ *raw = lines;
+
+ return 0;
+}
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