#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include "dpkg.h"
#include "memory.h"
/* #define DIAGNOSE 1 */
#define insert_packagenamelist(x,y) insert_l_packagenamelist(x,y,__LINE__)
static void free_dependency(dependency *dep);
static void free_package(dpkg_package *pkg);
static void free_collected_package(dpkg_collected_package *pkg);
static dpkg_paragraph *read_paragraph( FILE *f );
static dpkg_package *read_package( FILE *f );
static collpackagelist **get_matching_low(collpackagelist **addto,
dpkg_packages *pkgs, dependency *dep, int line);
static collpackagelist *get_matching(dpkg_packages *pkgs, deplist *depopts, int line);
deplist *read_dep_and(char *buf);
deplistlist *read_dep_andor(char *buf);
ownedpackagenamelist *read_packagenames(char *buf);
static dpkg_sources *read_sources_file(char *filename, int n_arches);
static dpkg_source *new_source(dpkg_sources *owner);
static dpkg_source *read_source(FILE *f, dpkg_sources *owner);
static deplist *read_deplist(char **buf, char sep, char end);
static dependency *read_dependency(char **buf, char *end);
static void add_virtualpackage(virtualpkgtbl *vpkgs, char *package,
char *version, dpkg_collected_package *cpkg);
static void remove_virtualpackage(virtualpkgtbl *vpkgs, char *pkgname,
dpkg_collected_package *cpkg);
static char *read_packagename(char **buf, char *end);
static char *read_until_char(char **buf, char *end);
void add_package(dpkg_packages *pkgs, dpkg_package *pkg);
void remove_package(dpkg_packages *pkgs, dpkg_collected_package *pkg);
static dpkg_source_note *copy_source_note(dpkg_source_note *srcn);
#if 0
static inline void *bm(size_t s, int n) { void *res = block_malloc(s); fprintf(stderr, "ALLOCED: %d %p %lu\n", n, res, s); return res; }
static inline void bf(void *p, size_t s, int n) { block_free(p,s); fprintf(stderr, "FREED: %d %p %lu\n", n, p, s); }
#define block_malloc(s) bm(s,__LINE__)
#define block_free(p,s) bf(p,s,__LINE__)
#endif
#define block_malloc(s) block_malloc2(s, __LINE__)
static char *priorities[] = {
"required",
"important",
"standard",
"optional",
"extra",
NULL
};
static char *dependency_title[] = {
"Pre-Depends", "Depends", "Recommends", "Suggests", NULL
};
static int dependency_counts[] = { 1, 1, 0, 0 };
char *dependency_relation_sym[] = {"*", "<<", "<=", "=", ">=", ">>"};
#define SMB_SIZE (1<<22)
struct stringmemblock {
struct stringmemblock *next;
size_t last;
char mem[SMB_SIZE];
};
static struct stringmemblock *stringmemory = NULL;
static int stringmemorycount = 0;
static const unsigned long stringmemblocksizekib = (unsigned long) sizeof(struct stringmemblock) / 1024;
char *my_strdup(char *foo) {
struct stringmemblock *which;
size_t len;
if (!foo) return NULL;
len = strlen(foo) + 1;
if (len > SMB_SIZE) return strdup(foo);
for (which = stringmemory; which; which = which->next) {
if (SMB_SIZE - which->last > len + 1) {
break;
}
}
if (!which) {
which = malloc(sizeof(struct stringmemblock));
if (!which) return NULL;
MDEBUG1_ONLY(fprintf(stderr,
"ALLOC: string memblock %d (%lu KiB, %lu KiB total)\n",
stringmemorycount, stringmemblocksizekib,
(stringmemorycount+1) * stringmemblocksizekib));
memset(which->mem, 0, SMB_SIZE);
which->last = 0;
which->next = stringmemory;
stringmemory = which;
stringmemorycount++;
}
strcpy(&which->mem[which->last], foo);
foo = &which->mem[which->last];
which->last += len;
return foo;
}
char *my_rep_strdup(char *foo) {
static char *repeats[1000] = {0};
int i;
for (i = 0; i < 1000; i++) {
if (repeats[i] == NULL) {
DEBUG_ONLY(fprintf(stderr, "REPEAT NR %d\n", i+1); )
return repeats[i] = my_strdup(foo);
}
if (strcmp(repeats[i], foo) == 0) return repeats[i];
}
return my_strdup(foo);
}
/* DIE **/
static void die(char *orig_msg) {
char *msg = my_strdup(orig_msg);
if (*msg && msg[strlen(msg)-1] == ':') {
msg[strlen(msg)-1] = '\0';
perror(msg);
} else {
printf("%s\n", msg);
}
abort();
}
/*************************************************************************
* Dpkg Control/Packages/etc Operations
*/
static dpkg_paragraph *read_paragraph( FILE *f ) {
dpkg_paragraph *result;
static int line_size = 0;
static char *line = NULL;
char *pch;
dpkg_entry *c_entry = NULL;
char *c_value = NULL;
if (line == NULL) {
line_size = 10;
line = malloc(line_size);
if (line == NULL) die("read_paragraph alloc 0:");
}
result = block_malloc( sizeof(dpkg_paragraph) );
if (result == NULL) die("read_paragraph alloc 1:");
result->n_entries = 0;
result->entry = NULL;
result->n_allocated = 0;
while(fgets(line, line_size, f)) {
while (!feof(f) && *line && line[strlen(line)-1] != '\n') {
line = realloc(line, line_size * 2);
if (!line) die("read_paragraph realloc:");
fgets(line + strlen(line), line_size, f);
line_size *= 2;
}
if (line[0] == '\n') break;
if (isspace(line[0])) {
if (c_value == NULL)
die("read_paragraph early spaces");
if (c_entry == NULL) {
/* no need to bother */
} else {
/* extend the line */
c_value = realloc(c_value, strlen(c_value) + strlen(line) + 1);
if (c_value == NULL)
die("read_paragraph realloc c_value:");
strcat(c_value, line);
}
} else {
if (c_entry) {
c_entry->value = my_strdup(c_value);
c_value[0] = '\0';
free(c_value);
c_value = NULL;
} else if (c_value) {
free(c_value);
c_value = NULL;
}
pch = strchr(line, ':');
if (pch == NULL) {
fprintf(stderr, "the line was: \"%s\"\n", line);
die("read_paragraph: no colon");
}
*pch = '\0';
while(isspace(*++pch));
if (strcmp(line, "Description") == 0) {
c_value = strdup(pch);
c_entry = NULL;
} else {
assert(result->n_entries <= result->n_allocated);
if (result->n_entries >= result->n_allocated) {
result->n_allocated += 10;
result->entry = realloc( result->entry,
sizeof(dpkg_entry)
* result->n_allocated);
if (result->entry == NULL)
die("read_paragraph realloc entry:");
}
c_entry = &result->entry[result->n_entries++];
c_entry->name = my_rep_strdup(line);
c_value = strdup(pch);
}
}
}
if (c_entry) {
c_entry->value = my_strdup(c_value);
c_value[0] = '\0';
free(c_value);
c_value = NULL;
}
if (result->n_entries == 0) {
if (result->entry) free(result->entry);
block_free(result, sizeof(dpkg_paragraph));
return NULL;
} else {
result->entry = realloc(result->entry,
sizeof(result->entry[0]) * result->n_entries);
result->n_allocated = result->n_entries;
}
return result;
}
static void write_paragraph(FILE *f, dpkg_paragraph *p) {
int i;
for (i = 0; i < p->n_entries; i++) {
fprintf(f, "%s: %s", p->entry[i].name, p->entry[i].value);
}
fprintf(f, "\n");
}
static void free_paragraph(dpkg_paragraph *p) {
int i;
if (p == NULL) return;
for (i = 0; i < p->n_entries; i++) {
/* block_free(p->entry[i].name); */
/* block_free(p->entry[i].value); */
}
free(p->entry);
block_free(p, sizeof(dpkg_paragraph));
}
/*************************************************************************
* Basic Package Operations
*/
static dpkg_package *new_package(void) {
dpkg_package *result;
result = block_malloc(sizeof(dpkg_package));
if (result == NULL) die("new_package alloc:");
result->package = NULL;
result->version = NULL;
result->priority = 0;
result->arch_all = 0;
result->source = NULL;
result->source_ver = NULL;
result->depends[0] = NULL;
result->depends[1] = NULL;
result->depends[2] = NULL;
result->depends[3] = NULL;
result->conflicts = NULL;
result->provides = NULL;
result->details = NULL;
return result;
}
static dpkg_collected_package *new_collected_package(dpkg_package *pkg) {
dpkg_collected_package *result;
result = block_malloc(sizeof(dpkg_collected_package));
if (result == NULL) die("new_collected_package alloc:");
result->pkg = pkg;
result->installed = 0;
result->conflicted = 0;
result->installable = UNKNOWN;
result->mayaffect = NULL;
return result;
}
static void free_collected_package(dpkg_collected_package *cpkg) {
if (cpkg == NULL) return;
cpkg->pkg = NULL;
free_packagenamelist(cpkg->mayaffect);
cpkg->mayaffect = NULL;
block_free(cpkg, sizeof(dpkg_collected_package));
}
static void free_package(dpkg_package *pkg) {
int i;
if (pkg == NULL) return;
/* block_free(pkg->package);
* block_free(pkg->version);
* block_free(pkg->source);
* block_free(pkg->source_ver); */
for (i = 0; i < 4; i++)
free_deplistlist(pkg->depends[i]);
free_deplist(pkg->conflicts);
free_ownedpackagenamelist(pkg->provides);
free_paragraph(pkg->details);
block_free(pkg, sizeof(dpkg_package));
}
static dpkg_package *read_package( FILE *f ) {
dpkg_package *result;
dpkg_paragraph *para;
dpkg_entry *e;
int i;
para = read_paragraph(f);
if (para == NULL) return NULL;
result = new_package();
result->details = para;
for (e = ¶->entry[0]; e < ¶->entry[para->n_entries]; e++) {
if (strcasecmp("Package", e->name) == 0) {
result->package = my_strdup(e->value);
if (result->package == NULL)
die("read_package my_strdup:");
result->package[strlen(result->package)-1] = '\0';
}
if (strcasecmp("Version", e->name) == 0) {
result->version = my_strdup(e->value);
if (result->version == NULL)
die("read_package my_strdup:");
result->version[strlen(result->version)-1] = '\0';
}
if (strcasecmp("Priority", e->name) == 0) {
int i;
for (i = 0; priorities[i] != NULL; i++) {
if (strcasecmp(priorities[i], e->value))
break;
}
result->priority = i;
if (priorities[i] == NULL) {
die("read_package: unknown priority");
}
}
if (strcasecmp("Architecture", e->name) == 0) {
if (strncasecmp(e->value, "all", 3) == 0) {
if (!e->value[3] || isspace(e->value[3])) {
result->arch_all = 1;
}
}
}
for (i = 0; dependency_title[i] != NULL; i++) {
if (strcasecmp(dependency_title[i], e->name) == 0) {
result->depends[i] = read_dep_andor(e->value);
}
}
if (strcasecmp("Conflicts", e->name) == 0)
result->conflicts = read_dep_and(e->value);
if (strcasecmp("Provides", e->name) == 0)
result->provides = read_packagenames(e->value);
if (strcasecmp("source", e->name) == 0) {
char *pch = e->value;
assert(result->source == NULL);
assert(result->source_ver == NULL);
result->source = my_strdup(read_packagename(&pch, "("));
if (result->source == NULL)
die("read_package: bad source header");
while(isspace(*pch)) pch++;
if (*pch == '(') {
pch++;
result->source_ver = my_strdup(read_until_char(&pch, ")"));
if (result->source_ver == NULL)
die("read_package: bad source version");
while(isspace(*pch)) pch++;
if (*pch != ')')
die("read_package: unterminated ver");
}
}
}
if (result->source == NULL) {
assert(result->source_ver == NULL);
result->source = my_strdup(result->package);
}
if (result->source_ver == NULL) {
result->source_ver = my_strdup(result->version);
}
return result;
}
static void freesize(void *p, size_t s) { (void)s; free(p); }
LIST_IMPL(deplist, dependency*, free_dependency, block_malloc, block_free);
LIST_IMPL(deplistlist, deplist*, free_deplist, block_malloc, block_free);
LIST_IMPLX(packagenamelist, char*, KEEP(char*));
LIST_IMPL(ownedpackagenamelist, char*, KEEP(char*), block_malloc, block_free);
/* ownedpackagenamelist stores the packagename in the string store */
static int packagecmp(dpkg_package *l, dpkg_package *r) {
if (l->priority < r->priority) return -1;
if (l->priority > r->priority) return +1;
return strcmp(l->package, r->package);
}
/* container for owned pkgs */
LIST_IMPL(ownedpackagelist, dpkg_package *, free_package,
block_malloc, block_free);
/* container for existing pkgs */
LIST_IMPL(packagelist, dpkg_package *, KEEP(dpkg_package *), block_malloc, block_free);
LIST_IMPLX(collpackagelist, dpkg_collected_package *,
KEEP(dpkg_collected_package *))
#define insert_collpackagelist(x,y) insert_l_collpackagelist(x,y,__LINE__)
/*************************************************************************
* Operations on distributions (collections of packages)
*/
dpkg_packages *new_packages(char *arch) {
dpkg_packages *result;
result = block_malloc(sizeof(dpkg_packages));
if (result == NULL) die("new_packages alloc:");
result->arch = my_strdup(arch);
result->packages = new_packagetbl();
result->virtualpkgs = new_virtualpkgtbl();
return result;
}
void add_package(dpkg_packages *pkgs, dpkg_package *pkg)
{
ownedpackagenamelist *v;
dpkg_collected_package *cpkg;
if (lookup_packagetbl(pkgs->packages, pkg->package) != NULL)
return;
cpkg = new_collected_package(pkg);
add_packagetbl(pkgs->packages, cpkg->pkg->package, cpkg);
add_virtualpackage(pkgs->virtualpkgs, cpkg->pkg->package,
cpkg->pkg->version, cpkg);
for (v = cpkg->pkg->provides; v != NULL; v = v->next) {
add_virtualpackage(pkgs->virtualpkgs, v->value, NULL, cpkg);
}
}
void remove_package(dpkg_packages *pkgs, dpkg_collected_package *cpkg) {
ownedpackagenamelist *v;
packagenamelist *aff;
dpkg_collected_package *p;
for (aff = cpkg->mayaffect; aff != NULL; aff = aff->next) {
p = lookup_packagetbl(pkgs->packages, aff->value);
if (p == NULL) continue;
p->installable = UNKNOWN;
}
p = remove_packagetbl(pkgs->packages, cpkg->pkg->package);
if (p != cpkg) return;
remove_virtualpackage(pkgs->virtualpkgs, cpkg->pkg->package, cpkg);
for (v = cpkg->pkg->provides; v != NULL; v = v->next) {
remove_virtualpackage(pkgs->virtualpkgs, v->value, cpkg);
}
free_collected_package(cpkg);
}
dpkg_packages *get_architecture(dpkg_sources *srcs, char *arch) {
int i, arch_index;
dpkg_packages *result;
sourcetbl_iter srci;
ownedpackagelist *p;
arch_index = -1;
for (i = 0; i < srcs->n_arches; i++) {
if (strcmp(srcs->archname[i], arch) == 0) {
arch_index = i;
break;
}
}
if (arch_index == -1) die("get_architecture: unknown arch");
result = new_packages(arch);
for (srci = first_sourcetbl(srcs->sources);
!done_sourcetbl(srci);
srci = next_sourcetbl(srci))
{
for (p = srci.v->packages[arch_index]; p != NULL; p = p->next) {
add_package(result, p->value);
}
}
return result;
}
void free_packages(dpkg_packages *pkgs) {
if (pkgs == NULL) return;
/* block_free(pkgs->arch); */
free_packagetbl(pkgs->packages);
free_virtualpkgtbl(pkgs->virtualpkgs);
block_free(pkgs, sizeof(dpkg_packages));
}
HASH_IMPL(packagetbl, char *, dpkg_collected_package *, 15, strhash, strcmp,
KEEP(char*),free_collected_package);
HASH_IMPL(virtualpkgtbl, char *, virtualpkg *, 15, strhash, strcmp,
KEEP(char*), free_virtualpkg);
/* dpkg_provision refers to memory allocated elsewhere */
LIST_IMPL(virtualpkg, dpkg_provision, KEEP(dpkg_provision), block_malloc, block_free);
static void remove_virtualpackage(virtualpkgtbl *vpkgs, char *pkgname,
dpkg_collected_package *cpkg)
{
virtualpkg *list;
virtualpkg **where;
list = lookup_virtualpkgtbl(vpkgs, pkgname);
assert(list != NULL);
where = &list;
while((*where)->value.pkg != cpkg) {
where = &(*where)->next;
assert(*where != NULL);
}
delete_virtualpkg(where);
if (list == NULL) {
remove_virtualpkgtbl(vpkgs, pkgname);
} else {
replace_virtualpkgtbl(vpkgs, pkgname, list);
}
}
static void add_virtualpackage(virtualpkgtbl *vpkgs, char *package,
char *version, dpkg_collected_package *cpkg)
{
dpkg_provision value;
virtualpkg *list, **addto;
int shouldreplace;
value.pkg = cpkg;
value.version = version;
list = lookup_virtualpkgtbl(vpkgs, package);
shouldreplace = (list != NULL);
addto = &list;
while (*addto != NULL
&& packagecmp(cpkg->pkg, (*addto)->value.pkg->pkg) >= 0)
{
addto = &(*addto)->next;
}
insert_virtualpkg(addto, value);
if (shouldreplace) {
replace_virtualpkgtbl(vpkgs, package, list);
/* old list is included in new list, so we don't need to free */
} else {
add_virtualpkgtbl(vpkgs, package, list);
}
}
/*************************************************************************
* Parsing Helper Functions
*/
ownedpackagenamelist *read_packagenames(char *buf) {
ownedpackagenamelist *result = NULL;
ownedpackagenamelist **addto = &result;
DEBUG_ONLY( char *strend = buf + strlen(buf); )
char *sub;
while ((sub = my_strdup(read_packagename(&buf, ",")))) {
insert_ownedpackagenamelist(addto, sub);
addto = &(*addto)->next;
while(isspace(*buf)) buf++;
if (*buf == ',') {
buf++;
continue;
}
if (*buf == '\0') {
break;
}
die("read_packagenames no/bad seperator");
}
DEBUG_ONLY( assert(buf <= strend); )
return result;
}
static char *read_until_char(char **buf, char *end) {
static char *result = NULL;
char *start;
DEBUG_ONLY( char *strend = *buf + strlen(*buf); )
int n;
while(isspace(**buf)) (*buf)++;
start = *buf;
while (**buf && !isspace(**buf) && strchr(end, **buf) == NULL) {
(*buf)++;
}
n = *buf - start;
if (n == 0) return NULL;
result = realloc(result, n + 1);
if (result == NULL) die("read_until_char alloc:");
strncpy(result, start, n);
result[n] = '\0';
while(isspace(**buf)) (*buf)++;
DEBUG_ONLY( assert(*buf <= strend); )
return result;
}
static char *read_packagename(char **buf, char *end) {
return read_until_char(buf, end);
}
deplist *read_dep_and(char *buf) {
return read_deplist(&buf, ',', '\0');
}
static deplist *read_deplist(char **buf, char sep, char end) {
deplist *result = NULL;
deplist **addto = &result;
char separs[3] = { sep, end, '\0' };
DEBUG_ONLY( char *strend = *buf + strlen(*buf); )
dependency *sub;
while ((sub = read_dependency(buf, separs))) {
insert_deplist(addto, sub);
addto = &(*addto)->next;
while(isspace(**buf)) (*buf)++;
if (**buf == sep) {
(*buf)++;
continue;
}
if (**buf == '\0' || **buf == end) {
break;
}
die("read_deplist no/bad seperator");
}
DEBUG_ONLY( assert(*buf <= strend); )
return result;
}
deplistlist *read_dep_andor(char *buf) {
deplistlist *result = NULL;
deplistlist **addto = &result;
deplist *sub;
DEBUG_ONLY( char *strend = buf + strlen(buf); )
while ((sub = read_deplist(&buf, '|', ','))) {
insert_deplistlist(addto, sub);
addto = &(*addto)->next;
if (*buf == ',') buf++;
}
DEBUG_ONLY( assert(buf <= strend); )
return result;
}
static dependency *read_dependency(char **buf, char *end) {
dependency *dep;
char *name;
char newend[10];
DEBUG_ONLY( char *strend = *buf + strlen(*buf); )
assert(strlen(end) <= 8);
newend[0] = '('; strcpy(newend + 1, end);
name = my_strdup(read_until_char(buf, newend));
if (name == NULL) return NULL;
dep = block_malloc(sizeof(dependency));
if (dep == NULL) die("read_dependency alloc 1:");
dep->package = name;
while(isspace(**buf)) (*buf)++;
if (**buf != '(') {
dep->op = dr_NOOP;
dep->version = NULL;
} else {
(*buf)++;
while(isspace(**buf)) (*buf)++;
/* << , <= , = , >= , >> */
if (**buf == '<') {
(*buf)++;
if (**buf == '<') {
dep->op = dr_LT;
(*buf)++;
} else if (**buf == '=') {
dep->op = dr_LTEQ;
(*buf)++;
} else {
/* The forms `<' and `>' were used to mean earlier/later or
* equal, rather than strictly earlier/later, so they should
* not appear in new packages (though `dpkg' still supports
* them).
*/
dep->op = dr_LTEQ;
}
} else if (**buf == '>') {
(*buf)++;
if (**buf == '>') {
dep->op = dr_GT;
(*buf)++;
} else if (**buf == '=') {
dep->op = dr_GTEQ;
(*buf)++;
} else {
dep->op = dr_GTEQ;
}
} else if (**buf == '=') {
dep->op = dr_EQ;
(*buf)++;
if (**buf == '>') {
dep->op = dr_GTEQ;
(*buf)++;
} else if (**buf == '<') {
dep->op = dr_LTEQ;
(*buf)++;
}
} else {
/* treat it as an implicit = :( */
dep->op = dr_EQ;
/* would prefer to: die("read_dependency unknown version op"); */
}
while (isspace(**buf)) (*buf)++;
newend[0] = ')';
dep->version = my_strdup(read_until_char(buf, newend));
while (isspace(**buf)) (*buf)++;
if (dep->version == NULL) die("read_dependency: no version");
if (**buf != ')') die("read_dependency: unterminated version");
(*buf)++;
}
DEBUG_ONLY( assert(*buf <= strend); )
return dep;
}
static void free_dependency(dependency *dep) {
if (dep == NULL) return;
/* block_free(dep->package); */
/* if (dep->version) block_free(dep->version); */
block_free(dep, sizeof(dependency));
}
/*************************************************************************
* Installability Checking
*/
static collpackagelist **get_matching_low(collpackagelist **addto,
dpkg_packages *pkgs, dependency *dep, int line)
{
virtualpkg *vpkg;
for (vpkg = lookup_virtualpkgtbl(pkgs->virtualpkgs, dep->package);
vpkg != NULL;
vpkg = vpkg->next)
{
int add;
add = 0;
if (dep->op == dr_NOOP) {
add = 1;
} else if (vpkg->value.version != NULL) {
if (cmpversions(vpkg->value.version, dep->op, dep->version)) {
add = 1;
}
}
if (add) {
insert_l_collpackagelist(addto, vpkg->value.pkg, line);
addto = &(*addto)->next;
}
}
return addto;
}
static collpackagelist *get_matching(dpkg_packages *pkgs, deplist *depopts, int line) {
collpackagelist *list = NULL;
collpackagelist **addto = &list;
for(; depopts != NULL; depopts = depopts->next) {
addto = get_matching_low(addto, pkgs, depopts->value, line);
}
return list;
}
typedef struct instonelist instonelist;
struct instonelist {
collpackagelist *curX;
collpackagelist *instoneX;
int expandedX;
struct instonelist *nextX, *prevX, *cutoffX;
};
#define I1CUR(i1) ((i1)->curX)
#define I1INSTONE(i1) ((i1)->instoneX)
#define I1CUTOFF(i1) ((i1)->cutoffX)
#define I1NEXT(i1) ((i1)->nextX) /* can be modified ! */
#define I1PREV(i1) ((i1)->prevX)
#define I1EXPANDED(i1) ((i1)->expandedX)
static instonelist *insert_instonelist(instonelist *where, collpackagelist *instone);
static void trim_instonelist_after(instonelist *first);
static void free_instonelist(instonelist *l);
static instonelist *insert_instonelist(instonelist *old, collpackagelist *instone)
{
instonelist *n = block_malloc(sizeof(instonelist));
if (n == NULL)
die("insert_instonelist alloc:");
n->curX = NULL;
n->instoneX = instone;
n->cutoffX = NULL;
n->nextX = (old ? old->nextX : NULL);
n->prevX = old;
n->expandedX = 0;
if (old) old->nextX = n;
if (n->nextX) n->nextX->prevX = n;
return n;
}
static void trim_instonelist_after(instonelist *first) {
if (!first->nextX) return;
first->nextX->prevX = NULL;
free_instonelist(first->nextX);
first->nextX = NULL;
}
static void free_instonelist(instonelist *l) {
instonelist *p, *k;
if (!l) return;
for (p = l; p->nextX; p = p->nextX);
do {
k = p;
p = k->prevX;
free_collpackagelist(k->instoneX);
block_free(k, sizeof(instonelist));
} while (k != l);
}
static int caninstall(dpkg_packages *pkgs, dpkg_collected_package *cpkg) {
collpackagelist *conflicts;
collpackagelist *conf;
int okay;
if (cpkg->installed > 0) return 1;
if (cpkg->conflicted > 0) return 0;
conflicts = get_matching(pkgs, cpkg->pkg->conflicts, __LINE__);
okay = 1;
for (conf = conflicts; conf != NULL; conf = conf->next) {
if (conf->value->installed > 0) {
okay = 0;
break;
}
}
free_collpackagelist(conflicts);
return okay;
}
static void install(dpkg_packages *pkgs, dpkg_collected_package *cpkg) {
if (cpkg->installed == 0) {
collpackagelist *conflicts = get_matching(pkgs, cpkg->pkg->conflicts, __LINE__);
collpackagelist *conf;
for (conf = conflicts; conf != NULL; conf = conf->next) {
if (conf->value == cpkg) continue;
assert(conf->value->installed == 0);
conf->value->conflicted++;
}
free_collpackagelist(conflicts);
}
assert(cpkg->conflicted == 0);
cpkg->installed++;
}
static void uninstall(dpkg_packages *pkgs, dpkg_collected_package *cpkg) {
assert(cpkg->installed > 0);
assert(cpkg->conflicted == 0);
cpkg->installed--;
if (cpkg->installed == 0) {
collpackagelist *conflicts = get_matching(pkgs, cpkg->pkg->conflicts, __LINE__);
collpackagelist *conf;
for (conf = conflicts; conf != NULL; conf = conf->next) {
if (conf->value == cpkg) continue;
assert(conf->value->installed == 0);
assert(conf->value->conflicted > 0);
conf->value->conflicted--;
}
free_collpackagelist(conflicts);
}
}
satisfieddep *new_satisfieddep(void) {
satisfieddep *sd = block_malloc(sizeof(satisfieddep));
if (!sd) die("new_satisfieddep alloc:");
return sd;
}
void free_satisfieddep(satisfieddep *sd) {
if (!sd) return;
free_packagelist(sd->pkgs);
block_free(sd, sizeof(satisfieddep));
}
LIST_IMPL(satisfieddeplist, satisfieddep *, free_satisfieddep, block_malloc, block_free);
packagelist *collpkglist2pkglist(collpackagelist *l) {
packagelist *r = NULL;
packagelist **addto = &r;
for (; l != NULL; l = l->next) {
insert_packagelist(addto, l->value->pkg);
addto = &(*addto)->next;
}
return r;
}
satisfieddeplist *checkunsatisfiabledeps(dpkg_packages *pkgs,
deplistlist *deps) {
satisfieddeplist *unsatisfiable = NULL;
satisfieddeplist **addto = &unsatisfiable;
satisfieddep *sd;
collpackagelist *deppkgs;
for (; deps != NULL; deps = deps->next) {
/* deplist *dep; */
/* for (dep = deps->value; dep != NULL; dep = dep->next) { */
sd = new_satisfieddep();
/* sd->dep = dep->value; */
sd->depl = deps->value;
deppkgs = NULL;
/* get_matching_low(&deppkgs, pkgs, dep->value); */
deppkgs = get_matching(pkgs, deps->value, __LINE__);
sd->pkgs = collpkglist2pkglist(deppkgs);
free_collpackagelist(deppkgs);
insert_satisfieddeplist(addto, sd);
addto = &(*addto)->next;
/* } */
}
return unsatisfiable;
}
int checkinstallable2(dpkg_packages *pkgs, char *pkgname) {
dpkg_collected_package *cpkg = lookup_packagetbl(pkgs->packages, pkgname);
collpackagelist *cpl = NULL;
if (cpkg == NULL) return 0;
insert_collpackagelist(&cpl, cpkg);
/* cpl gets freed in checkinstallable :-/ */
return checkinstallable(pkgs, cpl);
}
static void debug_checkinstallable(FILE *out, instonelist *list,
instonelist *last, instonelist *pointer)
{
instonelist *l;
fprintf(out, "Status:");
/* codes: | = multiple options here
* @ = no options can satisfy this dep
* + = dependencies that can be expanded have been
* * = nothing selected yet
* > = where pointer points
* ^ = the cut point for where we are
*/
for (l = list; ; l = I1NEXT(l)) {
fprintf(out, " ");
if (l == pointer) fprintf(out, ">");
if (l == I1CUTOFF(pointer)) fprintf(out, "^");
if (I1INSTONE(l) == NULL) {
fprintf(out, "@");
} else {
if (I1INSTONE(l)->next != NULL) {
fprintf(out, "|");
}
if (I1EXPANDED(l)) {
fprintf(out, "+");
}
if (I1CUR(l) == NULL) {
fprintf(out, "*%s", I1INSTONE(l)->value->pkg->package);
} else {
fprintf(out, "%s", I1CUR(l)->value->pkg->package);
}
}
if (l == last) break;
}
fprintf(out, " ###\n");
fflush(out);
}
int checkinstallable(dpkg_packages *pkgs, collpackagelist *instoneof) {
/* We use pkg->installed, pkg->conflicted to note how many
* times we've used this pkg to satisfy a dependency or installed
* a package that conflicts with it.
* Thus: pkg->installed == 0, or pkg->conflicted == 0
*
* We assume these are okay initially, aren't being played with
* concurrently elsewhere, and make sure they're still okay when
* we return.
*/
instonelist *list;
instonelist *last;
instonelist *pointer;
unsigned long counter = 10000000;
{
collpackagelist *cpkg;
for (cpkg = instoneof; cpkg; cpkg = cpkg->next) {
if (cpkg->value->installable == YES) {
free_collpackagelist(instoneof);
return 1;
}
}
}
list = insert_instonelist(NULL, instoneof);
last = list;
pointer = list;
while(--counter > 0 && pointer) {
deplistlist *dep;
dpkg_collected_package *instpkg; /* convenient alias */
int i;
#ifndef NDEBUG
{
instonelist *p;
for (p = list; p != pointer; p = I1NEXT(p)) {
assert(p != NULL);
assert(I1CUR(p) != NULL);
assert(I1CUR(p)->value != NULL);
assert(I1CUR(p)->value->installed > 0);
assert(I1CUR(p)->value->conflicted == 0);
}
if (I1NEXT(pointer) == NULL) {
assert(pointer == last);
} else {
for (p = I1NEXT(pointer); p; p = I1NEXT(p)) {
if (I1NEXT(p) == NULL) {
assert(p == last);
}
assert(I1CUR(p) == NULL);
}
}
}
#endif
#ifdef DIAGNOSE
debug_checkinstallable(stdout, list, last, pointer);
#endif
if (I1CUR(pointer) == NULL) {
I1CUR(pointer) = I1INSTONE(pointer);
/* try to choose an already installed package if there is one */
while (I1CUR(pointer) != NULL) {
if (I1CUR(pointer)->value->installed != 0) {
break;
}
I1CUR(pointer) = I1CUR(pointer)->next;
}
if (I1CUR(pointer) == NULL) {
I1CUR(pointer) = I1INSTONE(pointer);
}
assert(I1CUR(pointer) || !I1INSTONE(pointer));
I1CUTOFF(pointer) = last;
} else {
uninstall(pkgs, I1CUR(pointer)->value);
trim_instonelist_after(I1CUTOFF(pointer));
last = I1CUTOFF(pointer);
if (I1CUR(pointer)->value->installed > 0) {
/* this dependency isn't the issue -- even doing
* nothing to satisfy it (ie, using an already
* installed package) doesn't do any good. So give up.
*/
I1CUR(pointer) = NULL;
} else {
I1CUR(pointer) = I1CUR(pointer)->next;
}
}
while(I1CUR(pointer) && !caninstall(pkgs, I1CUR(pointer)->value)) {
I1CUR(pointer) = I1CUR(pointer)->next;
}
if (I1CUR(pointer) == NULL) {
if (I1PREV(pointer) == NULL) break;
pointer = I1PREV(pointer);
continue;
}
instpkg = I1CUR(pointer)->value;
install(pkgs, instpkg);
assert(instpkg->installed > 0);
if (instpkg->installed == 1) {
/* if it's been installed exactly once, then this must've been
* the first time it was touched, so we need to look at the
* dependencies. If it's the second or later, then we don't care
* about them.
*/
/* if any of the deps can't be satisfied, don't move on */
int bother = 1;
int expanded = I1EXPANDED(pointer);
for (i = 0; i < 4; i++) {
if (!dependency_counts[i]) continue;
for (dep = instpkg->pkg->depends[i];
dep != NULL; dep = dep->next)
{
collpackagelist *thisdep = get_matching(pkgs, dep->value, __LINE__);
if (thisdep == NULL) {
bother = 0;
} else if (thisdep != NULL && thisdep->next == NULL) {
collpackagelist *x;
/* if there's only one way of fulfilling this dep,
* do it "ASAP"
*/
/* optimisation: if thisdep == foo, but the parent
* was foo|bar, then we already know "foo" is not going
* to work in this combination, and we can skip it.
*
* This deals with cases like X deps: Y|bar, bar deps: Y
* where bar is a virtual package; cf xlibs
*/
for (x = I1INSTONE(pointer); x != I1CUR(pointer); x = x->next) {
if (x->value == thisdep->value) {
bother = 0;
break;
}
}
if (I1INSTONE(pointer)->next == NULL) {
/* the parent of this entry essentially depends
* on this too, so we'll get it out of the way
* ASAP, to reduce the degree of exponentiation
* in bad cases.
*
* _However_ we only want to do this _once_ for
* any particular node.
*/
if (expanded) {
/* thisdep isn't used! */
free_collpackagelist(thisdep);
} else {
insert_instonelist(pointer, thisdep);
I1EXPANDED(pointer) = 1;
}
} else {
insert_instonelist(I1CUTOFF(pointer), thisdep);
}
if (I1NEXT(last)) last = I1NEXT(last);
assert(!I1NEXT(last));
} else {
/* otherwise it's a multi possibility dep, so do it
* at the end
*/
last = insert_instonelist(last, thisdep);
}
}
}
if (!bother) {
/* stay where we are, and try the next possibility */
continue;
}
}
pointer = I1NEXT(pointer);
}
if (counter == 0) {
fprintf(stderr, "AIEEE: counter overflow:");
assert(pointer != NULL);
if (I1CUR(pointer) == NULL || I1CUR(pointer)->value == NULL) {
/* we're not guaranteed that pointer will make sense here */
pointer = I1PREV(pointer);
}
for (; pointer != NULL; pointer = I1PREV(pointer)) {
if (I1CUR(pointer) == NULL) {
/* should only happen at pointer, so not here */
fprintf(stderr, " >> eep, no packages at pointer <<");
continue;
}
if (I1CUR(pointer)->value == NULL) {
/* should never happen */
fprintf(stderr, " >> eep, no package selected <<");
continue;
}
fprintf(stderr, " %s%s",
(I1INSTONE(pointer)->next == NULL ? "" : "|"),
I1CUR(pointer)->value->pkg->package);
uninstall(pkgs, I1CUR(pointer)->value);
}
fprintf(stderr, ".\n");
free_instonelist(list);
return 0;
}
if (pointer == NULL) {
dpkg_collected_package *cpkg = I1CUR(list)->value;
assert(cpkg->installable != YES);
cpkg->installable = YES;
for (pointer = last; pointer != NULL; pointer = I1PREV(pointer)) {
if (I1CUR(pointer)->value->installed == 1) {
packagenamelist **p = &I1CUR(pointer)->value->mayaffect;
#if 0
while ( *p && (*p)->value < cpkg->pkg->package ) {
p = &(*p)->next;
}
if (*p == NULL || (*p)->value > cpkg->pkg->package)
#endif
{
insert_packagenamelist(p, cpkg->pkg->package);
}
}
uninstall(pkgs, I1CUR(pointer)->value);
}
free_instonelist(list);
return 1;
} else {
assert(I1CUR(list) == NULL);
free_instonelist(list);
return 0;
}
}
/******************/
HASH_IMPL(sourcetbl, char *, dpkg_source *, 14, strhash, strcmp,
KEEP(char*), free_source);
static dpkg_sources *read_sources_file(char *filename, int n_arches) {
FILE *f;
dpkg_sources *result;
dpkg_source *src;
int i;
f = fopen(filename, "r");
if (f == NULL && errno != ENOENT) {
die("read_sources_file: couldn't open file:");
}
result = block_malloc(sizeof(dpkg_sources));
if (result == NULL) die("read_sources_file alloc 1:");
result->n_arches = n_arches;
result->archname = block_malloc(sizeof(char*) * n_arches);
if (result->archname == NULL) die("read_sources_file alloc 2:");
for (i = 0; i < n_arches; i++) result->archname[i] = NULL;
result->unclaimedpackages = block_malloc(sizeof(ownedpackagelist*)
* n_arches);
if (result->unclaimedpackages == NULL) die("read_sources_file alloc 3:");
for (i = 0; i < n_arches; i++) result->unclaimedpackages[i] = NULL;
result->sources = new_sourcetbl();
if (f != NULL) {
while ((src = read_source(f, result))) {
dpkg_source *old = lookup_sourcetbl(result->sources, src->package);
if (old == NULL) {
add_sourcetbl(result->sources, src->package, src);
} else {
if (versioncmp(old->version, src->version) || 1) {
int i;
old = replace_sourcetbl(result->sources, src->package, src);
for (i = 0; i < old->owner->n_arches; i++) {
assert(old->packages[i] == NULL);
}
free_source(old);
} else {
int i;
for (i = 0; i < src->owner->n_arches; i++) {
assert(src->packages[i] == NULL);
}
free_source(src);
}
}
}
fclose(f);
}
return result;
}
void free_sources(dpkg_sources *s) {
int i;
if (s == NULL) return;
free_sourcetbl(s->sources);
for (i = 0; i < s->n_arches; i++) {
/* block_free(s->archname[i]); */
free_ownedpackagelist(s->unclaimedpackages[i]);
}
block_free(s->archname, s->n_arches * sizeof(char*));
block_free(s->unclaimedpackages, s->n_arches * sizeof(ownedpackagelist*));
block_free(s, sizeof(dpkg_sources));
}
static dpkg_source *new_source(dpkg_sources *owner) {
dpkg_source *result;
int i;
result = block_malloc(sizeof(dpkg_source));
if (result == NULL) die("new_source alloc 1:");
result->package = NULL;
result->version = NULL;
result->details = NULL;
result->fake = 0;
result->owner = owner;
result->packages = block_malloc(sizeof(packagelist*) * owner->n_arches);
if (result->packages == NULL) die("new_source alloc 2:");
for (i = 0; i < owner->n_arches; i++) {
result->packages[i] = NULL;
}
return result;
}
static dpkg_source *read_source(FILE *f, dpkg_sources *owner) {
dpkg_source *result;
dpkg_paragraph *para;
dpkg_entry *e;
para = read_paragraph(f);
if (para == NULL) return NULL;
result = new_source(owner);
result->details = para;
for (e = ¶->entry[0]; e < ¶->entry[para->n_entries]; e++) {
if (strcmp("Package", e->name) == 0) {
result->package = my_strdup(e->value);
if (result->package == NULL)
die("read_source strdup:");
result->package[strlen(result->package)-1] = '\0';
}
if (strcmp("Version", e->name) == 0) {
result->version = my_strdup(e->value);
if (result->version == NULL)
die("read_source strdup:");
result->version[strlen(result->version)-1] = '\0';
}
}
return result;
}
void free_source(dpkg_source *s) {
int i;
if (s == NULL) return;
assert(s->owner != NULL); /* shouldn't have allocated it */
/* block_free(s->package); */
/* block_free(s->version); */
free_paragraph(s->details);
for (i = 0; i < s->owner->n_arches; i++) {
free_ownedpackagelist(s->packages[i]);
}
block_free(s->packages, s->owner->n_arches * sizeof(ownedpackagelist*));
block_free(s, sizeof(dpkg_source));
}
/******************************/
dpkg_sources *read_directory(char *dir, int n_arches, char *archname[]) {
char buf[1000];
dpkg_sources *srcs;
int i;
snprintf(buf, 1000, "%s/Sources", dir);
srcs = read_sources_file(buf, n_arches);
for (i = 0; i < n_arches; i++) {
FILE *f;
dpkg_package *pkg;
srcs->archname[i] = my_strdup(archname[i]);
snprintf(buf, 1000, "%s/Packages_%s", dir, archname[i]);
f = fopen(buf, "r");
if (f == NULL && errno != ENOENT) die("load_dirctory fopen:");
if (f != NULL) {
while ((pkg = read_package(f))) {
dpkg_source *src = lookup_sourcetbl(srcs->sources, pkg->source);
if (src == NULL) {
src = new_source(srcs);
src->fake = 1;
src->package = my_strdup(pkg->source);
src->version = my_strdup(pkg->source_ver);
add_sourcetbl(srcs->sources, src->package, src);
}
insert_ownedpackagelist(&src->packages[i], pkg);
}
fclose(f);
}
}
return srcs;
}
void write_directory(char *dir, dpkg_sources *srcs) {
FILE *src;
FILE *archfile[100];
char buf[1000];
int i;
sourcetbl_iter srciter;
snprintf(buf, 1000, "%s/Sources", dir);
src = fopen(buf, "w");
if (!src) die("write_directory: Couldn't open Sources file for output");
for (i = 0; i < srcs->n_arches; i++) {
snprintf(buf, 1000, "%s/Packages_%s", dir, srcs->archname[i]);
archfile[i] = fopen(buf, "w");
}
for (srciter = first_sourcetbl(srcs->sources);
!done_sourcetbl(srciter);
srciter = next_sourcetbl(srciter))
{
ownedpackagelist *p;
int i;
if (!srciter.v->fake)
write_paragraph(src, srciter.v->details);
for (i = 0; i < srcs->n_arches; i++) {
for (p = srciter.v->packages[i]; p != NULL; p = p->next) {
write_paragraph(archfile[i], p->value->details);
}
}
}
fclose(src);
for (i = 0; i < srcs->n_arches; i++) {
fclose(archfile[i]);
}
}
/*********************/
HASH_IMPL(sourcenotetbl, char *, dpkg_source_note *, 14, strhash, strcmp,
KEEP(char*), free_source_note);
dpkg_source_note *new_source_note(dpkg_source *src, int n_arches) {
dpkg_source_note *result = block_malloc(sizeof(dpkg_source_note));
int i;
if (result == NULL) die("new_source_note alloc 1:");
result->source = src;
result->n_arches = n_arches;
result->binaries = block_malloc(n_arches * sizeof(packagelist*));
if (result->binaries == NULL) die("new_source_note alloc 2:");
for (i = 0; i < n_arches; i++) {
result->binaries[i] = NULL;
}
return result;
}
void free_source_note(dpkg_source_note *srcn) {
int i;
if (srcn == NULL) return;
if (srcn->binaries != NULL) {
for (i = 0; i < srcn->n_arches; i++) {
free_packagelist(srcn->binaries[i]);
}
block_free(srcn->binaries, sizeof(packagelist*) * srcn->n_arches);
}
block_free(srcn, sizeof(dpkg_source_note));
}
#ifdef DEBUG
static int is_sources_note(dpkg_sources_note *srcsn) {
int i;
assert(srcsn != NULL);
assert(srcsn->magic == 0xa1eebabe);
assert(srcsn->pkgs != NULL);
for (i = 0; i < srcsn->n_arches; i++) {
assert(srcsn->pkgs[i] != NULL && srcsn->archname[i] != NULL);
assert(strcmp(srcsn->archname[i], srcsn->pkgs[i]->arch) == 0);
}
return 1;
}
#endif
dpkg_sources_note *new_sources_note(int n_arches, char **archname) {
dpkg_sources_note *result = block_malloc(sizeof(dpkg_sources_note));
int i;
if (result == NULL) die("new_sources_note alloc 1:");
result->magic = 0xA1EEBABE;
result->sources = new_sourcenotetbl();
result->pkgs = block_malloc(n_arches * sizeof(dpkg_packages*));
if (result->pkgs == NULL) die("new_sources_note alloc 2:");
result->archname = block_malloc(n_arches * sizeof(char*));
if (result->archname == NULL) die("new_sources_note alloc 3:");
result->n_arches = n_arches;
for (i = 0; i < n_arches; i++) {
result->archname[i] = my_strdup(archname[i]);
result->pkgs[i] = new_packages(result->archname[i]);
}
result->undo = NULL;
return result;
}
void free_sources_note(dpkg_sources_note *srcsn) {
int i;
if (srcsn == NULL) return;
assert(is_sources_note(srcsn));
srcsn->magic = 0xBABEA1EE;
free_sourcenotetbl(srcsn->sources);
for (i = 0; i < srcsn->n_arches; i++) {
free_packages(srcsn->pkgs[i]);
/* block_free(srcsn->archname[i]); */
}
block_free(srcsn->pkgs, sizeof(dpkg_packages*) * srcsn->n_arches);
block_free(srcsn->archname, sizeof(char*) * srcsn->n_arches);
free_source_note_listlist(srcsn->undo);
block_free(srcsn, sizeof(dpkg_sources_note));
}
static void new_op(dpkg_sources_note *srcsn) {
assert(is_sources_note(srcsn));
insert_source_note_listlist(&srcsn->undo, NULL);
}
static void save_source_note(dpkg_sources_note *srcsn, dpkg_source_note *srcn) {
source_note_list **where;
assert(is_sources_note(srcsn));
assert(srcsn->undo != NULL);
for (where = &srcsn->undo->value;
*where != NULL;
where = &(*where)->next)
{
if ((*where)->value->source == srcn->source)
return; /* already saved */
}
insert_source_note_list(where, copy_source_note(srcn));
}
static void save_empty_source_note(dpkg_sources_note *srcsn, dpkg_source *src) {
dpkg_source_note *srcn;
source_note_list **where;
for (where = &srcsn->undo->value;
*where != NULL;
where = &(*where)->next)
{
if ((*where)->value->source == src)
return; /* already saved */
}
srcn = block_malloc(sizeof(dpkg_source_note));
if (srcn == NULL) die("save_empty_source_note alloc:");
assert(is_sources_note(srcsn));
srcn->source = src;
srcn->n_arches = 0;
srcn->binaries = NULL;
insert_source_note_list(where, srcn);
}
typedef enum { DO_ARCHALL = 0, SKIP_ARCHALL = 1 } do_this;
static void remove_binaries_by_arch(dpkg_sources_note *srcsn,
dpkg_source_note *srcn, int archnum,
do_this arch_all)
{
packagelist *p;
packagelist *leftovers = NULL, **addto = &leftovers;
assert(is_sources_note(srcsn));
assert(arch_all == SKIP_ARCHALL || NULL == lookup_sourcenotetbl(srcsn->sources,srcn->source->package));
/* if we're removing the entire binary, we should already have
* removed the source. if we're removing just the binaries on this
* arch (not arch:all) then we may be keeping the source
*
* really a logical XOR, I think. we don't rely on this assertion
* here
*/
for (p = srcn->binaries[archnum]; p != NULL; p = p->next) {
dpkg_collected_package *cpkg;
if (arch_all == SKIP_ARCHALL && p->value->arch_all) {
insert_packagelist(addto, p->value);
addto = &(*addto)->next;
continue;
}
cpkg = lookup_packagetbl(srcsn->pkgs[archnum]->packages,
p->value->package);
remove_package(srcsn->pkgs[archnum], cpkg);
}
free_packagelist(srcn->binaries[archnum]);
srcn->binaries[archnum] = leftovers;
}
typedef enum { NOTUNDOABLE = 0, UNDOABLE = 1 } undoable;
static void add_binaries_by_arch(dpkg_sources_note *srcsn,
dpkg_source_note *srcn, dpkg_source *src,
int archnum, undoable undoop, do_this arch_all)
{
ownedpackagelist *p;
const char *archname = srcsn->archname[archnum];
int origarchnum = -1;
int i;
assert(is_sources_note(srcsn));
assert(srcn == lookup_sourcenotetbl(srcsn->sources,srcn->source->package));
for (i = 0; i < src->owner->n_arches; i++) {
if (strcmp(archname, src->owner->archname[i]) == 0) {
origarchnum = i;
break;
}
}
if (origarchnum == -1) return; /* nothing to add, no biggie */
for (p = src->packages[origarchnum]; p != NULL; p = p->next) {
dpkg_collected_package *cpkg;
if (arch_all == SKIP_ARCHALL && p->value->arch_all) continue;
if ((cpkg = lookup_packagetbl(srcsn->pkgs[archnum]->packages,
p->value->package)))
{
dpkg_source_note *srcnB;
packagelist **p;
if (!undoop) {
printf("conflict w/o undo: binary %s, owned by %s, replaced by %s\n", cpkg->pkg->package, cpkg->pkg->source, src->package);
fflush(stdout);
}
srcnB = lookup_sourcenotetbl(srcsn->sources, cpkg->pkg->source);
assert(srcnB != NULL);
for (p = &srcnB->binaries[archnum]; *p != NULL; p = &(*p)->next) {
if ((*p)->value == cpkg->pkg) break;
}
assert(*p != NULL); /* binary should be from source */
assert(undoop);
save_source_note(srcsn, srcnB);
remove_package(srcsn->pkgs[archnum], cpkg);
remove_packagelist(p);
}
add_package(srcsn->pkgs[archnum], p->value);
insert_packagelist(&srcn->binaries[archnum], p->value);
}
}
void upgrade_source(dpkg_sources_note *srcsn, dpkg_source *src) {
dpkg_source_note *srcn;
int i;
new_op(srcsn);
assert(is_sources_note(srcsn));
/* first, find the old source, if it exists */
srcn = remove_sourcenotetbl(srcsn->sources, src->package);
if (srcn != NULL) {
save_source_note(srcsn, srcn);
for (i = 0; i < srcn->n_arches; i++) {
remove_binaries_by_arch(srcsn, srcn, i, DO_ARCHALL);
}
free_source_note(srcn);
} else {
save_empty_source_note(srcsn, src);
}
/* then add the new one */
srcn = new_source_note(src, srcsn->n_arches);
add_sourcenotetbl(srcsn->sources, src->package, srcn);
for (i = 0; i < srcsn->n_arches; i++) {
add_binaries_by_arch(srcsn, srcn, src, i, UNDOABLE, DO_ARCHALL);
}
assert(is_sources_note(srcsn));
}
void upgrade_arch(dpkg_sources_note *srcsn, dpkg_source *src, char *arch) {
dpkg_source_note *srcn;
int archnum = -1;
int i;
assert(is_sources_note(srcsn));
/* first, find the old source */
srcn = lookup_sourcenotetbl(srcsn->sources, src->package);
assert(srcn != NULL);
new_op(srcsn);
save_source_note(srcsn, srcn);
/* then lookup the archnum */
for (i = 0; i < srcsn->n_arches; i++) {
if (strcmp(arch, srcsn->archname[i]) == 0) {
archnum = i;
break;
}
}
if (archnum == -1) die("upgrade_arch: unknown arch");
/* then remove the old stuff and add the new */
remove_binaries_by_arch(srcsn, srcn, archnum, SKIP_ARCHALL);
add_binaries_by_arch(srcsn, srcn, src, archnum, UNDOABLE, SKIP_ARCHALL);
assert(is_sources_note(srcsn));
}
void remove_source(dpkg_sources_note *srcsn, char *name) {
dpkg_source_note *srcn;
int i;
assert(is_sources_note(srcsn));
srcn = remove_sourcenotetbl(srcsn->sources, name);
assert(srcn != NULL);
new_op(srcsn);
save_source_note(srcsn, srcn);
for (i = 0; i < srcn->n_arches; i++) {
remove_binaries_by_arch(srcsn, srcn, i, DO_ARCHALL);
}
free_source_note(srcn);
assert(is_sources_note(srcsn));
}
int can_undo(dpkg_sources_note *srcsn) {
assert(is_sources_note(srcsn));
return srcsn->undo != NULL;
}
void undo_change(dpkg_sources_note *srcsn) {
dpkg_source_note *srcnO, *srcnC; /* old, current */
source_note_list *srcnl;
int i;
assert(is_sources_note(srcsn));
assert(can_undo(srcsn));
srcnl = remove_source_note_listlist(&srcsn->undo);
while(srcnl) {
srcnO = remove_source_note_list(&srcnl);
assert(srcnO != NULL); /* can_undo() implies this is true... */
srcnC = remove_sourcenotetbl(srcsn->sources, srcnO->source->package);
if (srcnC != NULL) {
for (i = 0; i < srcnC->n_arches; i++) {
remove_binaries_by_arch(srcsn, srcnC, i, DO_ARCHALL);
}
free_source_note(srcnC);
assert(!lookup_sourcenotetbl(srcsn->sources,
srcnO->source->package));
}
if (srcnO->binaries == NULL) {
/* no original source */
assert(srcnC != NULL); /* some sort of no-op? freaky. */
free_source_note(srcnO);
} else {
packagelist *p;
/* original source */
add_sourcenotetbl(srcsn->sources, srcnO->source->package, srcnO);
for (i = 0; i < srcsn->n_arches; i++) {
for (p = srcnO->binaries[i]; p != NULL; p = p->next) {
add_package(srcsn->pkgs[i], p->value);
}
}
}
}
}
LIST_IMPL(source_note_list, dpkg_source_note *, free_source_note,
block_malloc, block_free);
LIST_IMPL(source_note_listlist, source_note_list *, free_source_note_list,
block_malloc, block_free);
void commit_changes(dpkg_sources_note *srcsn) {
assert(is_sources_note(srcsn));
free_source_note_listlist(srcsn->undo);
srcsn->undo = NULL;
}
dpkg_source_note *copy_source_note(dpkg_source_note *srcn) {
dpkg_source_note *srcn2;
packagelist *src, **dest;
int i;
assert(srcn->binaries != NULL);
srcn2 = block_malloc(sizeof(dpkg_source_note));
if (srcn2 == NULL) die("copy_source_note alloc:");
srcn2->source = srcn->source;
srcn2->n_arches = srcn->n_arches;
srcn2->binaries = block_malloc(sizeof(packagenamelist*) * srcn2->n_arches);
if (srcn2->binaries == NULL) die("copy_source_note alloc:");
for (i = 0; i < srcn2->n_arches; i++) {
dest = &(srcn2->binaries[i]);
*dest = NULL;
for (src = srcn->binaries[i]; src; src = src->next) {
insert_packagelist(dest, src->value);
dest = &((*dest)->next);
}
}
return srcn2;
}
void write_notes(char *dir, dpkg_sources_note *srcsn) {
FILE *src;
FILE *archfile[100];
char buf[1000];
int i;
sourcenotetbl_iter srciter;
assert(is_sources_note(srcsn));
snprintf(buf, 1000, "%s/Sources", dir);
src = fopen(buf, "w");
for (i = 0; i < srcsn->n_arches; i++) {
snprintf(buf, 1000, "%s/Packages_%s", dir, srcsn->archname[i]);
archfile[i] = fopen(buf, "w");
}
for (srciter = first_sourcenotetbl(srcsn->sources);
!done_sourcenotetbl(srciter);
srciter = next_sourcenotetbl(srciter))
{
packagelist *p;
int i;
if (!srciter.v->source->fake)
write_paragraph(src, srciter.v->source->details);
for (i = 0; i < srcsn->n_arches; i++) {
for (p = srciter.v->binaries[i]; p != NULL; p = p->next) {
write_paragraph(archfile[i], p->value->details);
}
}
}
fclose(src);
for (i = 0; i < srcsn->n_arches; i++) {
fclose(archfile[i]);
}
}