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-rw-r--r--src/libopkg/.svn/text-base/pkg_depends.c.svn-base931
1 files changed, 0 insertions, 931 deletions
diff --git a/src/libopkg/.svn/text-base/pkg_depends.c.svn-base b/src/libopkg/.svn/text-base/pkg_depends.c.svn-base
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--- a/src/libopkg/.svn/text-base/pkg_depends.c.svn-base
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@@ -1,931 +0,0 @@
-/* pkg_depends.c - the opkg 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 <stdio.h>
-#include <ctype.h>
-
-#include "pkg.h"
-#include "opkg_utils.h"
-#include "pkg_hash.h"
-#include "opkg_message.h"
-#include "pkg_parse.h"
-#include "hash_table.h"
-#include "libbb/libbb.h"
-
-static int parseDepends(compound_depend_t *compound_depend, char * depend_str);
-static depend_t * depend_init(void);
-static char ** add_unresolved_dep(pkg_t * pkg, char ** the_lost, int ref_ndx);
-static char ** merge_unresolved(char ** oldstuff, char ** newstuff);
-static int is_pkg_in_pkg_vec(pkg_vec_t * vec, pkg_t * pkg);
-
-static int pkg_installed_and_constraint_satisfied(pkg_t *pkg, void *cdata)
-{
- depend_t *depend = (depend_t *)cdata;
- if ((pkg->state_status == SS_INSTALLED || pkg->state_status == SS_UNPACKED) && version_constraints_satisfied(depend, pkg))
- return 1;
- else
- return 0;
-}
-
-static int pkg_constraint_satisfied(pkg_t *pkg, void *cdata)
-{
- depend_t *depend = (depend_t *)cdata;
- if (version_constraints_satisfied(depend, pkg))
- return 1;
- else
- return 0;
-}
-
-/* returns ndependencies or negative error value */
-int
-pkg_hash_fetch_unsatisfied_dependencies(pkg_t * pkg, pkg_vec_t *unsatisfied,
- char *** unresolved)
-{
- pkg_t * satisfier_entry_pkg;
- int i, j, k;
- int count, found;
- char ** the_lost;
- abstract_pkg_t * ab_pkg;
-
- /*
- * this is a setup to check for redundant/cyclic dependency checks,
- * which are marked at the abstract_pkg level
- */
- if (!(ab_pkg = pkg->parent)) {
- opkg_msg(ERROR, "Internal error, with pkg %s.\n", pkg->name);
- *unresolved = NULL;
- return 0;
- }
- if (ab_pkg->dependencies_checked) { /* avoid duplicate or cyclic checks */
- *unresolved = NULL;
- return 0;
- } else {
- ab_pkg->dependencies_checked = 1; /* mark it for subsequent visits */
- }
- /**/
-
- count = pkg->pre_depends_count + pkg->depends_count + pkg->recommends_count + pkg->suggests_count;
- if (!count){
- *unresolved = NULL;
- return 0;
- }
-
- the_lost = NULL;
-
- /* foreach dependency */
- for (i = 0; i < count; i++) {
- compound_depend_t * compound_depend = &pkg->depends[i];
- depend_t ** possible_satisfiers = compound_depend->possibilities;;
- found = 0;
- satisfier_entry_pkg = NULL;
-
- if (compound_depend->type == GREEDY_DEPEND) {
- /* foreach possible satisfier */
- for (j = 0; j < compound_depend->possibility_count; j++) {
- /* foreach provided_by, which includes the abstract_pkg itself */
- abstract_pkg_t *abpkg = possible_satisfiers[j]->pkg;
- abstract_pkg_vec_t *ab_provider_vec = abpkg->provided_by;
- int nposs = ab_provider_vec->len;
- abstract_pkg_t **ab_providers = ab_provider_vec->pkgs;
- int l;
- for (l = 0; l < nposs; l++) {
- pkg_vec_t *test_vec = ab_providers[l]->pkgs;
- /* if no depends on this one, try the first package that Provides this one */
- if (!test_vec){ /* no pkg_vec hooked up to the abstract_pkg! (need another feed?) */
- continue;
- }
-
- /* cruise this possiblity's pkg_vec looking for an installed version */
- for (k = 0; k < test_vec->len; k++) {
- pkg_t *pkg_scout = test_vec->pkgs[k];
- /* not installed, and not already known about? */
- if ((pkg_scout->state_want != SW_INSTALL)
- && !pkg_scout->parent->dependencies_checked
- && !is_pkg_in_pkg_vec(unsatisfied, pkg_scout)) {
- char ** newstuff = NULL;
- int rc;
- pkg_vec_t *tmp_vec = pkg_vec_alloc ();
- /* check for not-already-installed dependencies */
- rc = pkg_hash_fetch_unsatisfied_dependencies(pkg_scout,
- tmp_vec,
- &newstuff);
- if (newstuff == NULL) {
- int m;
- int ok = 1;
- for (m = 0; m < rc; m++) {
- pkg_t *p = tmp_vec->pkgs[m];
- if (p->state_want == SW_INSTALL)
- continue;
- opkg_msg(DEBUG,
- "Not installing %s due"
- " to requirement for %s.\n",
- pkg_scout->name,
- p->name);
- ok = 0;
- break;
- }
- pkg_vec_free (tmp_vec);
- if (ok) {
- /* mark this one for installation */
- opkg_msg(NOTICE,
- "Adding satisfier for greedy"
- " dependence %s.\n",
- pkg_scout->name);
- pkg_vec_insert(unsatisfied, pkg_scout);
- }
- } else {
- opkg_msg(DEBUG,
- "Not installing %s due to "
- "broken depends.\n",
- pkg_scout->name);
- free (newstuff);
- }
- }
- }
- }
- }
-
- continue;
- }
-
- /* foreach possible satisfier, look for installed package */
- for (j = 0; j < compound_depend->possibility_count; j++) {
- /* foreach provided_by, which includes the abstract_pkg itself */
- depend_t *dependence_to_satisfy = possible_satisfiers[j];
- abstract_pkg_t *satisfying_apkg = possible_satisfiers[j]->pkg;
- pkg_t *satisfying_pkg =
- pkg_hash_fetch_best_installation_candidate(satisfying_apkg,
- pkg_installed_and_constraint_satisfied,
- dependence_to_satisfy, 1);
- /* Being that I can't test constraing in pkg_hash, I will test it here */
- if (satisfying_pkg != NULL) {
- if (!pkg_installed_and_constraint_satisfied ( satisfying_pkg,dependence_to_satisfy)) {
- satisfying_pkg = NULL;
- }
- }
- opkg_msg(DEBUG, "satisfying_pkg=%p\n", satisfying_pkg);
- if (satisfying_pkg != NULL) {
- found = 1;
- break;
- }
-
- }
- /* if nothing installed matches, then look for uninstalled satisfier */
- if (!found) {
- /* foreach possible satisfier, look for installed package */
- for (j = 0; j < compound_depend->possibility_count; j++) {
- /* foreach provided_by, which includes the abstract_pkg itself */
- depend_t *dependence_to_satisfy = possible_satisfiers[j];
- abstract_pkg_t *satisfying_apkg = possible_satisfiers[j]->pkg;
- pkg_t *satisfying_pkg =
- pkg_hash_fetch_best_installation_candidate(satisfying_apkg,
- pkg_constraint_satisfied,
- dependence_to_satisfy, 1);
- /* Being that I can't test constraing in pkg_hash, I will test it here too */
- if (satisfying_pkg != NULL) {
- if (!pkg_constraint_satisfied ( satisfying_pkg,dependence_to_satisfy)) {
- satisfying_pkg = NULL;
- }
- }
-
- /* user request overrides package recommendation */
- if (satisfying_pkg != NULL
- && (compound_depend->type == RECOMMEND || compound_depend->type == SUGGEST)
- && (satisfying_pkg->state_want == SW_DEINSTALL || satisfying_pkg->state_want == SW_PURGE)) {
- opkg_msg(NOTICE, "%s: ignoring recommendation for "
- "%s at user request\n",
- pkg->name, satisfying_pkg->name);
- continue;
- }
-
- opkg_msg(DEBUG, "satisfying_pkg=%p\n", satisfying_pkg);
- if (satisfying_pkg != NULL) {
- satisfier_entry_pkg = satisfying_pkg;
- break;
- }
- }
- }
-
- /* we didn't find one, add something to the unsatisfied vector */
- if (!found) {
- if (!satisfier_entry_pkg) {
- /* failure to meet recommendations is not an error */
- if (compound_depend->type != RECOMMEND && compound_depend->type != SUGGEST)
- the_lost = add_unresolved_dep(pkg, the_lost, i);
- else
- opkg_msg(NOTICE,
- "%s: unsatisfied recommendation for %s\n",
- pkg->name,
- compound_depend->possibilities[0]->pkg->name);
- }
- else {
- if (compound_depend->type == SUGGEST) {
- /* just mention it politely */
- opkg_msg(NOTICE, "package %s suggests installing %s\n",
- pkg->name, satisfier_entry_pkg->name);
- } else {
- char ** newstuff = NULL;
-
- if (satisfier_entry_pkg != pkg &&
- !is_pkg_in_pkg_vec(unsatisfied, satisfier_entry_pkg)) {
- pkg_vec_insert(unsatisfied, satisfier_entry_pkg);
- pkg_hash_fetch_unsatisfied_dependencies(satisfier_entry_pkg,
- unsatisfied,
- &newstuff);
- the_lost = merge_unresolved(the_lost, newstuff);
- if (newstuff)
- free(newstuff);
- }
- }
- }
- }
- }
- *unresolved = the_lost;
-
- return unsatisfied->len;
-}
-
-/*checking for conflicts !in replaces
- If a packages conflicts with another but is also replacing it, I should not consider it a
- really conflicts
- returns 0 if conflicts <> replaces or 1 if conflicts == replaces
-*/
-static int
-is_pkg_a_replaces(pkg_t *pkg_scout,pkg_t *pkg)
-{
- int i ;
- int replaces_count = pkg->replaces_count;
- abstract_pkg_t **replaces;
-
- if (pkg->replaces_count==0) // No replaces, it's surely a conflict
- return 0;
-
- replaces = pkg->replaces;
-
- for (i = 0; i < replaces_count; i++) {
- if (strcmp(pkg_scout->name,pkg->replaces[i]->name)==0) { // Found
- opkg_msg(DEBUG2, "Seems I've found a replace %s %s\n",
- pkg_scout->name, pkg->replaces[i]->name);
- return 1;
- }
- }
- return 0;
-
-}
-
-
-pkg_vec_t * pkg_hash_fetch_conflicts(pkg_t * pkg)
-{
- pkg_vec_t * installed_conflicts, * test_vec;
- compound_depend_t * conflicts;
- depend_t ** possible_satisfiers;
- depend_t * possible_satisfier;
- int i, j, k;
- int count;
- abstract_pkg_t * ab_pkg;
- pkg_t **pkg_scouts;
- pkg_t *pkg_scout;
-
- /*
- * this is a setup to check for redundant/cyclic dependency checks,
- * which are marked at the abstract_pkg level
- */
- if(!(ab_pkg = pkg->parent)){
- opkg_msg(ERROR, "Internal error: %s not in hash table\n", pkg->name);
- return (pkg_vec_t *)NULL;
- }
-
- conflicts = pkg->conflicts;
- if(!conflicts){
- return (pkg_vec_t *)NULL;
- }
- installed_conflicts = pkg_vec_alloc();
-
- count = pkg->conflicts_count;
-
-
-
- /* foreach conflict */
- for(i = 0; i < pkg->conflicts_count; i++){
-
- possible_satisfiers = conflicts->possibilities;
-
- /* foreach possible satisfier */
- for(j = 0; j < conflicts->possibility_count; j++){
- possible_satisfier = possible_satisfiers[j];
- if (!possible_satisfier)
- opkg_msg(ERROR, "Internal error: possible_satisfier=NULL\n");
- if (!possible_satisfier->pkg)
- opkg_msg(ERROR, "Internal error: possible_satisfier->pkg=NULL\n");
- test_vec = possible_satisfier->pkg->pkgs;
- if (test_vec) {
- /* pkg_vec found, it is an actual package conflict
- * cruise this possiblity's pkg_vec looking for an installed version */
- pkg_scouts = test_vec->pkgs;
- for(k = 0; k < test_vec->len; k++){
- pkg_scout = pkg_scouts[k];
- if (!pkg_scout) {
- opkg_msg(ERROR, "Internal error: pkg_scout=NULL\n");
- continue;
- }
- if ((pkg_scout->state_status == SS_INSTALLED || pkg_scout->state_want == SW_INSTALL) &&
- version_constraints_satisfied(possible_satisfier, pkg_scout) && !is_pkg_a_replaces(pkg_scout,pkg)){
- if (!is_pkg_in_pkg_vec(installed_conflicts, pkg_scout)){
- pkg_vec_insert(installed_conflicts, pkg_scout);
- }
- }
- }
- }
- }
- conflicts++;
- }
-
- if (installed_conflicts->len)
- return installed_conflicts;
- pkg_vec_free(installed_conflicts);
- return (pkg_vec_t *)NULL;
-}
-
-int version_constraints_satisfied(depend_t * depends, pkg_t * pkg)
-{
- pkg_t * temp;
- int comparison;
-
- if(depends->constraint == NONE)
- return 1;
-
- temp = pkg_new();
-
- parse_version(temp, depends->version);
-
- comparison = pkg_compare_versions(pkg, temp);
-
- free (temp->version);
- free(temp);
-
- if((depends->constraint == EARLIER) &&
- (comparison < 0))
- return 1;
- else if((depends->constraint == LATER) &&
- (comparison > 0))
- return 1;
- else if(comparison == 0)
- return 1;
- else if((depends->constraint == LATER_EQUAL) &&
- (comparison >= 0))
- return 1;
- else if((depends->constraint == EARLIER_EQUAL) &&
- (comparison <= 0))
- return 1;
-
- return 0;
-}
-
-int pkg_dependence_satisfiable(depend_t *depend)
-{
- abstract_pkg_t *apkg = depend->pkg;
- abstract_pkg_vec_t *provider_apkgs = apkg->provided_by;
- int n_providers = provider_apkgs->len;
- abstract_pkg_t **apkgs = provider_apkgs->pkgs;
- pkg_vec_t *pkg_vec;
- int n_pkgs ;
- int i;
- int j;
-
- for (i = 0; i < n_providers; i++) {
- abstract_pkg_t *papkg = apkgs[i];
- pkg_vec = papkg->pkgs;
- if (pkg_vec) {
- n_pkgs = pkg_vec->len;
- for (j = 0; j < n_pkgs; j++) {
- pkg_t *pkg = pkg_vec->pkgs[j];
- if (version_constraints_satisfied(depend, pkg)) {
- return 1;
- }
- }
- }
- }
- return 0;
-}
-
-int pkg_dependence_satisfied(depend_t *depend)
-{
- abstract_pkg_t *apkg = depend->pkg;
- abstract_pkg_vec_t *provider_apkgs = apkg->provided_by;
- int n_providers = provider_apkgs->len;
- abstract_pkg_t **apkgs = provider_apkgs->pkgs;
- int i;
- int n_pkgs;
- int j;
-
- for (i = 0; i < n_providers; i++) {
- abstract_pkg_t *papkg = apkgs[i];
- pkg_vec_t *pkg_vec = papkg->pkgs;
- if (pkg_vec) {
- n_pkgs = pkg_vec->len;
- for (j = 0; j < n_pkgs; j++) {
- pkg_t *pkg = pkg_vec->pkgs[j];
- if (version_constraints_satisfied(depend, pkg)) {
- if (pkg->state_status == SS_INSTALLED || pkg->state_status == SS_UNPACKED)
- return 1;
- }
- }
- }
- }
- return 0;
-}
-
-static int is_pkg_in_pkg_vec(pkg_vec_t * vec, pkg_t * pkg)
-{
- int i;
- pkg_t ** pkgs = vec->pkgs;
-
- for(i = 0; i < vec->len; i++)
- if((strcmp(pkg->name, (*(pkgs + i))->name) == 0)
- && (pkg_compare_versions(pkg, *(pkgs + i)) == 0)
- && (strcmp(pkg->architecture, (*(pkgs + i))->architecture) == 0))
- return 1;
- return 0;
-}
-
-/**
- * pkg_replaces returns 1 if pkg->replaces contains one of replacee's provides and 0
- * otherwise.
- */
-int pkg_replaces(pkg_t *pkg, pkg_t *replacee)
-{
- abstract_pkg_t **replaces = pkg->replaces;
- int replaces_count = pkg->replaces_count;
- int replacee_provides_count = replacee->provides_count;
- int i, j;
- for (i = 0; i < replaces_count; i++) {
- abstract_pkg_t *abstract_replacee = replaces[i];
- for (j = 0; j < replacee_provides_count; j++) {
- if (replacee->provides[j] == abstract_replacee)
- return 1;
- }
- }
- return 0;
-}
-
-
-/**
- * pkg_conflicts_abstract returns 1 if pkg->conflicts contains conflictee and 0
- * otherwise.
- */
-int pkg_conflicts_abstract(pkg_t *pkg, abstract_pkg_t *conflictee)
-{
- compound_depend_t *conflicts = pkg->conflicts;
- int conflicts_count = pkg->conflicts_count;
- int i, j;
- for (i = 0; i < conflicts_count; i++) {
- int possibility_count = conflicts[i].possibility_count;
- struct depend **possibilities = conflicts[i].possibilities;
- for (j = 0; j < possibility_count; j++) {
- if (possibilities[j]->pkg == conflictee) {
- return 1;
- }
- }
- }
- return 0;
-}
-
-/**
- * pkg_conflicts returns 1 if pkg->conflicts contains one of
- * conflictee's provides and 0 otherwise.
- */
-int pkg_conflicts(pkg_t *pkg, pkg_t *conflictee)
-{
- compound_depend_t *conflicts = pkg->conflicts;
- int conflicts_count = pkg->conflicts_count;
- abstract_pkg_t **conflictee_provides = conflictee->provides;
- int conflictee_provides_count = conflictee->provides_count;
- int i, j, k;
- int possibility_count;
- struct depend **possibilities;
- abstract_pkg_t *possibility ;
-
- for (i = 0; i < conflicts_count; i++) {
- possibility_count = conflicts[i].possibility_count;
- possibilities = conflicts[i].possibilities;
- for (j = 0; j < possibility_count; j++) {
- possibility = possibilities[j]->pkg;
- for (k = 0; k < conflictee_provides_count; k++) {
- if (possibility == conflictee_provides[k]) {
- return 1;
- }
- }
- }
- }
- return 0;
-}
-
-static char ** merge_unresolved(char ** oldstuff, char ** newstuff)
-{
- int oldlen = 0, newlen = 0;
- char ** result;
- int i, j;
-
- if(!newstuff)
- return oldstuff;
-
- while(oldstuff && oldstuff[oldlen]) oldlen++;
- while(newstuff && newstuff[newlen]) newlen++;
-
- result = xrealloc(oldstuff, sizeof(char *) * (oldlen + newlen + 1));
-
- for(i = oldlen, j = 0; i < (oldlen + newlen); i++, j++)
- *(result + i) = *(newstuff + j);
-
- *(result + i) = NULL;
-
- return result;
-}
-
-/*
- * a kinda kludgy way to back out depends str from two different arrays (reg'l'r 'n pre)
- * this is null terminated, no count is carried around
- */
-char ** add_unresolved_dep(pkg_t * pkg, char ** the_lost, int ref_ndx)
-{
- int count;
- char ** resized;
-
- count = 0;
- while(the_lost && the_lost[count]) count++;
-
- count++; /* need one to hold the null */
- resized = xrealloc(the_lost, sizeof(char *) * (count + 1));
- resized[count - 1] = pkg_depend_str(pkg, ref_ndx);
- resized[count] = NULL;
-
- return resized;
-}
-
-void buildProvides(abstract_pkg_t * ab_pkg, pkg_t * pkg)
-{
- int i;
-
- /* every pkg provides itself */
- pkg->provides_count++;
- abstract_pkg_vec_insert(ab_pkg->provided_by, ab_pkg);
- pkg->provides = xcalloc(pkg->provides_count, sizeof(abstract_pkg_t *));
- pkg->provides[0] = ab_pkg;
-
- for (i=1; i<pkg->provides_count; i++) {
- abstract_pkg_t *provided_abpkg = ensure_abstract_pkg_by_name(
- pkg->provides_str[i-1]);
- free(pkg->provides_str[i-1]);
-
- pkg->provides[i] = provided_abpkg;
-
- abstract_pkg_vec_insert(provided_abpkg->provided_by, ab_pkg);
- }
- if (pkg->provides_str)
- free(pkg->provides_str);
-}
-
-void buildConflicts(pkg_t * pkg)
-{
- int i;
- compound_depend_t * conflicts;
-
- if (!pkg->conflicts_count)
- return;
-
- conflicts = pkg->conflicts = xcalloc(pkg->conflicts_count, sizeof(compound_depend_t));
- for (i = 0; i < pkg->conflicts_count; i++) {
- conflicts->type = CONFLICTS;
- parseDepends(conflicts, pkg->conflicts_str[i]);
- free(pkg->conflicts_str[i]);
- conflicts++;
- }
- if (pkg->conflicts_str)
- free(pkg->conflicts_str);
-}
-
-void buildReplaces(abstract_pkg_t * ab_pkg, pkg_t * pkg)
-{
- int i;
-
- if (!pkg->replaces_count)
- return;
-
- pkg->replaces = xcalloc(pkg->replaces_count, sizeof(abstract_pkg_t *));
-
- for(i = 0; i < pkg->replaces_count; i++){
- abstract_pkg_t *old_abpkg = ensure_abstract_pkg_by_name(pkg->replaces_str[i]);
-
- pkg->replaces[i] = old_abpkg;
- free(pkg->replaces_str[i]);
-
- if (!old_abpkg->replaced_by)
- old_abpkg->replaced_by = abstract_pkg_vec_alloc();
- /* if a package pkg both replaces and conflicts old_abpkg,
- * then add it to the replaced_by vector so that old_abpkg
- * will be upgraded to ab_pkg automatically */
- if (pkg_conflicts_abstract(pkg, old_abpkg))
- abstract_pkg_vec_insert(old_abpkg->replaced_by, ab_pkg);
- }
-
- if (pkg->replaces_str)
- free(pkg->replaces_str);
-}
-
-void buildDepends(pkg_t * pkg)
-{
- unsigned int count;
- int i;
- compound_depend_t * depends;
-
- if(!(count = pkg->pre_depends_count + pkg->depends_count + pkg->recommends_count + pkg->suggests_count))
- return;
-
- depends = pkg->depends = xcalloc(count, sizeof(compound_depend_t));
-
- for(i = 0; i < pkg->pre_depends_count; i++){
- parseDepends(depends, pkg->pre_depends_str[i]);
- free(pkg->pre_depends_str[i]);
- depends->type = PREDEPEND;
- depends++;
- }
- if (pkg->pre_depends_str)
- free(pkg->pre_depends_str);
-
- for(i = 0; i < pkg->depends_count; i++){
- parseDepends(depends, pkg->depends_str[i]);
- free(pkg->depends_str[i]);
- depends++;
- }
- if (pkg->depends_str)
- free(pkg->depends_str);
-
- for(i = 0; i < pkg->recommends_count; i++){
- parseDepends(depends, pkg->recommends_str[i]);
- free(pkg->recommends_str[i]);
- depends->type = RECOMMEND;
- depends++;
- }
- if(pkg->recommends_str)
- free(pkg->recommends_str);
-
- for(i = 0; i < pkg->suggests_count; i++){
- parseDepends(depends, pkg->suggests_str[i]);
- free(pkg->suggests_str[i]);
- depends->type = SUGGEST;
- depends++;
- }
- if(pkg->suggests_str)
- free(pkg->suggests_str);
-}
-
-const char*
-constraint_to_str(enum version_constraint c)
-{
- switch (c) {
- case NONE:
- return "";
- case EARLIER:
- return "< ";
- case EARLIER_EQUAL:
- return "<= ";
- case EQUAL:
- return "= ";
- case LATER_EQUAL:
- return ">= ";
- case LATER:
- return "> ";
- }
-
- return "";
-}
-
-/*
- * Returns a printable string for pkg's dependency at the specified idx. The
- * resultant string must be passed to free() by the caller.
- */
-char *
-pkg_depend_str(pkg_t *pkg, int idx)
-{
- int i;
- unsigned int len;
- char *str;
- compound_depend_t *cdep;
- depend_t *dep;
-
- len = 0;
- cdep = &pkg->depends[idx];
-
- /* calculate string length */
- for (i=0; i<cdep->possibility_count; i++) {
- dep = cdep->possibilities[i];
-
- if (i != 0)
- len += 3; /* space, pipe, space */
-
- len += strlen(dep->pkg->name);
-
- if (dep->version) {
- len += 2; /* space, left parenthesis */
- len += 3; /* constraint string (<=, >=, etc), space */
- len += strlen(dep->version);
- len += 1; /* right parenthesis */
- }
- }
-
- str = xmalloc(len + 1); /* +1 for the NULL terminator */
- str[0] = '\0';
-
- for (i=0; i<cdep->possibility_count; i++) {
- dep = cdep->possibilities[i];
-
- if (i != 0)
- strncat(str, " | ", len);
-
- strncat(str, dep->pkg->name, len);
-
- if (dep->version) {
- strncat(str, " (", len);
- strncat(str, constraint_to_str(dep->constraint), len);
- strncat(str, dep->version, len);
- strncat(str, ")", len);
- }
- }
-
- return str;
-}
-
-void buildDependedUponBy(pkg_t * pkg, abstract_pkg_t * ab_pkg)
-{
- compound_depend_t * depends;
- int count, othercount;
- int i, j;
- abstract_pkg_t * ab_depend;
- abstract_pkg_t ** temp;
-
- count = pkg->pre_depends_count +
- pkg->depends_count +
- pkg->recommends_count +
- pkg->suggests_count;
-
- for (i = 0; i < count; i++) {
- depends = &pkg->depends[i];
- if (depends->type != PREDEPEND
- && depends->type != DEPEND
- && depends->type != RECOMMEND)
- continue;
- for (j = 0; j < depends->possibility_count; j++) {
- ab_depend = depends->possibilities[j]->pkg;
- if (!ab_depend->depended_upon_by) {
- ab_depend->depended_upon_by =
- xcalloc(1, sizeof(abstract_pkg_t *));
- }
-
- temp = ab_depend->depended_upon_by;
- othercount = 1;
- while (*temp) {
- temp++;
- othercount++;
- }
- *temp = ab_pkg;
-
- ab_depend->depended_upon_by =
- xrealloc(ab_depend->depended_upon_by,
- (othercount + 1) * sizeof(abstract_pkg_t *));
-
- /* the array may have been moved by realloc */
- temp = ab_depend->depended_upon_by + othercount;
- *temp = NULL;
- }
- }
-}
-
-static depend_t * depend_init(void)
-{
- depend_t * d = xcalloc(1, sizeof(depend_t));
- d->constraint = NONE;
- d->version = NULL;
- d->pkg = NULL;
-
- return d;
-}
-
-static int parseDepends(compound_depend_t *compound_depend,
- char * depend_str)
-{
- char * pkg_name, buffer[2048];
- unsigned int num_of_ors = 0;
- int i;
- char * src, * dest;
- depend_t ** possibilities;
-
- /* first count the number of ored possibilities for satisfying dependency */
- src = depend_str;
- while(*src)
- if(*src++ == '|')
- num_of_ors++;
-
- compound_depend->type = DEPEND;
-
- compound_depend->possibility_count = num_of_ors + 1;
- possibilities = xcalloc((num_of_ors + 1), sizeof(depend_t *) );
- compound_depend->possibilities = possibilities;
-
- src = depend_str;
- for(i = 0; i < num_of_ors + 1; i++){
- possibilities[i] = depend_init();
- /* gobble up just the name first */
- dest = buffer;
- while(*src &&
- !isspace(*src) &&
- (*src != '(') &&
- (*src != '*') &&
- (*src != '|'))
- *dest++ = *src++;
- *dest = '\0';
- pkg_name = trim_xstrdup(buffer);
-
- /* now look at possible version info */
-
- /* skip to next chars */
- if(isspace(*src))
- while(*src && isspace(*src)) src++;
-
- /* extract constraint and version */
- if(*src == '('){
- src++;
- if(!strncmp(src, "<<", 2)){
- possibilities[i]->constraint = EARLIER;
- src += 2;
- }
- else if(!strncmp(src, "<=", 2)){
- possibilities[i]->constraint = EARLIER_EQUAL;
- src += 2;
- }
- else if(!strncmp(src, ">=", 2)){
- possibilities[i]->constraint = LATER_EQUAL;
- src += 2;
- }
- else if(!strncmp(src, ">>", 2)){
- possibilities[i]->constraint = LATER;
- src += 2;
- }
- else if(!strncmp(src, "=", 1)){
- possibilities[i]->constraint = EQUAL;
- src++;
- }
- /* should these be here to support deprecated designations; dpkg does */
- else if(!strncmp(src, "<", 1)){
- possibilities[i]->constraint = EARLIER_EQUAL;
- src++;
- }
- else if(!strncmp(src, ">", 1)){
- possibilities[i]->constraint = LATER_EQUAL;
- src++;
- }
-
- /* now we have any constraint, pass space to version string */
- while(isspace(*src)) src++;
-
- /* this would be the version string */
- dest = buffer;
- while(*src && *src != ')')
- *dest++ = *src++;
- *dest = '\0';
-
- possibilities[i]->version = trim_xstrdup(buffer);
- }
- /* hook up the dependency to its abstract pkg */
- possibilities[i]->pkg = ensure_abstract_pkg_by_name(pkg_name);
-
- free(pkg_name);
-
- /* now get past the ) and any possible | chars */
- while(*src &&
- (isspace(*src) ||
- (*src == ')') ||
- (*src == '|')))
- src++;
- if (*src == '*')
- {
- compound_depend->type = GREEDY_DEPEND;
- src++;
- }
- }
-
- return 0;
-}