#include "busybox.h"
-//#define PACKAGE "udpkg"
-//#define VERSION "0.1"
+#define DEPENDSMAX 64 /* maximum number of depends we can handle */
-/*
- * Should we do full dependency checking?
- */
+/* Should we do full dependency checking? */
#define DODEPENDS 1
-/*
- * Should we do debugging?
- */
-#define DODEBUG 0
+/* Should we do debugging? */
+#define DODEBUG 1
#ifdef DODEBUG
#define SYSTEM(x) do_system(x)
#define DPRINTF(fmt,args...) /* nothing */
#endif
-#define BUFSIZE 4096
-#define DEPENDSMAX 64 /* maximum number of depends we can handle */
+/* from dpkg-deb.c */
+extern int deb_extract(int optflags, const char *dir_name, const char *deb_filename);
+static const int dpkg_deb_contents = 1;
+static const int dpkg_deb_control = 2;
+// const int dpkg_deb_info = 4;
+static const int dpkg_deb_extract = 8;
+static const int dpkg_deb_verbose_extract = 16;
+static const int dpkg_deb_list = 32;
+
+static const char statusfile[] = "/var/lib/dpkg/status.udeb";
+static const char new_statusfile[] = "/var/lib/dpkg/status.udeb.new";
+static const char bak_statusfile[] = "/var/lib/dpkg/status.udeb.bak";
+
+static const char dpkgcidir[] = "/var/lib/dpkg/tmp.ci/";
-#define ADMINDIR "/var/lib/dpkg"
-#define STATUSFILE ADMINDIR ## "/status.udeb"
-#define DPKGCIDIR ADMINDIR ## "/tmp.ci/"
static const char infodir[] = "/var/lib/dpkg/info/";
static const char udpkg_quiet[] = "UDPKG_QUIET";
struct package_s *next;
} package_t;
+#ifdef DODEBUG
+static int do_system(const char *cmd)
+{
+ DPRINTF("cmd is %s\n", cmd);
+ return system(cmd);
+}
+#else
+#define do_system(cmd) system(cmd)
+#endif
+
static int package_compare(const void *p1, const void *p2)
{
return strcmp(((package_t *)p1)->package,
((package_t *)p2)->package);
}
+static int remove_dpkgcidir()
+{
+ char *rm_dpkgcidir = NULL;
+
+ rm_dpkgcidir = (char *) xmalloc(strlen(dpkgcidir) + 8);
+ strcpy(rm_dpkgcidir, "rm -rf ");
+ strcat(rm_dpkgcidir, dpkgcidir);
+
+ if (SYSTEM(rm_dpkgcidir) != 0) {
+ perror("mkdir ");
+ return EXIT_FAILURE;
+ }
+ return EXIT_SUCCESS;
+}
+
#ifdef DODEPENDS
#include <ctype.h>
int i = 0;
dependsvec[0] = 0;
+ if (dependsstr == 0) {
+ goto end;
+ }
- if (dependsstr != 0) {
- p = strdup(dependsstr);
- while (*p != 0 && *p != '\n') {
- if (*p != ' ') {
- if (*p == ',') {
- *p = 0;
- dependsvec[++i] = 0;
- } else
- if (dependsvec[i] == 0)
- dependsvec[i] = p;
+ p = strdup(dependsstr);
+ while (*p != 0 && *p != '\n') {
+ if (*p != ' ') {
+ if (*p == ',') {
+ *p = 0;
+ dependsvec[++i] = 0;
} else {
- *p = 0; /* eat the space... */
+ if (dependsvec[i] == 0) {
+ dependsvec[i] = p;
+ }
}
- p++;
+ } else {
+ *p = 0; /* eat the space... */
}
- *p = 0;
+ p++;
}
+ *p = 0;
+
+end:
dependsvec[i+1] = 0;
return dependsvec;
}
+/* Topological sort algorithm:
+ * ordered is the output list, pkgs is the dependency graph, pkg is
+ * the current node
+ *
+ * recursively add all the adjacent nodes to the ordered list, marking
+ * each one as visited along the way
+ *
+ * yes, this algorithm looks a bit odd when all the params have the
+ * same type :-)
+ */
static void depends_sort_visit(package_t **ordered, package_t *pkgs,
package_t *pkg)
{
- /* Topological sort algorithm:
- * ordered is the output list, pkgs is the dependency graph, pkg is
- * the current node
- *
- * recursively add all the adjacent nodes to the ordered list, marking
- * each one as visited along the way
- *
- * yes, this algorithm looks a bit odd when all the params have the
- * same type :-)
- */
unsigned short i;
/* mark node as processing */
#if 0
/* add it to the list */
- newnode = (struct package_t *)malloc(sizeof(struct package_t));
+ newnode = (struct package_t *)xmalloc(sizeof(struct package_t));
/* make a shallow copy */
*newnode = *pkg;
newnode->next = *ordered;
*ordered = newnode;
#endif
+
pkg->next = *ordered;
*ordered = pkg;
package_t *ordered = NULL;
package_t *pkg;
- for (pkg = pkgs; pkg != 0; pkg = pkg->next)
+ for (pkg = pkgs; pkg != 0; pkg = pkg->next) {
pkg->color = color_white;
-
- for (pkg = pkgs; pkg != 0; pkg = pkg->next)
- if (pkg->color == color_white)
+ }
+ for (pkg = pkgs; pkg != 0; pkg = pkg->next) {
+ if (pkg->color == color_white) {
depends_sort_visit(&ordered, pkgs, pkg);
+ }
+ }
/* Leaks the old list... return the new one... */
return ordered;
if ((found = tfind(&dependpkg, &status, package_compare)) == 0 ||
((chk = *(package_t **)found) &&
(chk->status & (status_flagok | status_statusinstalled)) !=
- (status_flagok | status_statusinstalled)))
- {
+ (status_flagok | status_statusinstalled))) {
+
/* if it fails, we look through the list of packages we are going to
* install */
for (chk = pkgs; chk != 0; chk = chk->next) {
- if (strcmp(chk->package, dependsvec[i]) == 0 ||
- (chk->provides &&
+ if (strcmp(chk->package, dependsvec[i]) == 0 || (chk->provides &&
strncmp(chk->provides, dependsvec[i], strlen(dependsvec[i])) == 0)) {
if (chk->requiredcount >= DEPENDSMAX) {
- fprintf(stderr, "Too many dependencies for %s\n",
- chk->package);
+ fprintf(stderr, "Too many dependencies for %s\n", chk->package);
return 0;
}
if (chk != pkg) {
* replacing any pre-existing entries. when a merge happens, status info
* read using the status_read function is written back to the status file
*/
-
static unsigned long status_parse(const char *line)
{
char *p;
int i, j;
unsigned long l = 0;
- for (i = 0; i < 3; i++)
- {
- p = strchr(line, ' ');
- if (p) *p = 0;
+
+ for (i = 0; i < 3; i++) {
+ if ((p = strchr(line, ' ')) != NULL) {
+ *p = 0;
+ }
j = 1;
while (statuswords[i][j] != 0) {
if (strcmp(line, statuswords[i][j]) == 0) {
}
line = p+1;
}
+
return l;
}
return NULL;
}
}
+
return buf;
}
* Read a control file (or a stanza of a status file) and parse it,
* filling parsed fields into the package structure
*/
-static void control_read(FILE *file, package_t *p)
+static int control_read(FILE *file, package_t *p)
{
char *line;
while ((line = get_line_from_file(file)) != NULL) {
line[strlen(line)] = 0;
+
if (strlen(line) == 0) {
break;
} else
/* TODO: localized descriptions */
}
free(line);
+ return EXIT_SUCCESS;
}
static void *status_read(void)
void *status = 0;
package_t *m = 0, *p = 0, *t = 0;
- if ((f = fopen(STATUSFILE, "r")) == NULL) {
- perror(STATUSFILE);
+ if ((f = fopen(statusfile, "r")) == NULL) {
+ perror(statusfile);
return 0;
}
+
if (getenv(udpkg_quiet) == NULL) {
printf("(Reading database...)\n");
}
+
while (!feof(f)) {
m = (package_t *)xmalloc(sizeof(package_t));
memset(m, 0, sizeof(package_t));
p->package = strdup(m->provides);
t = *(package_t **)tsearch(p, &status, package_compare);
- if (!(t == p)) {
+ if (t != p) {
free(p->package);
free(p);
}
package_t locpkg;
int r = 0;
- if ((fin = fopen(STATUSFILE, "r")) == NULL) {
- perror(STATUSFILE);
+ if ((fin = fopen(statusfile, "r")) == NULL) {
+ perror(statusfile);
return 0;
}
- if ((fout = fopen(STATUSFILE ".new", "w")) == NULL) {
- perror(STATUSFILE ".new");
+ if ((fout = fopen(new_statusfile, "w")) == NULL) {
+ perror(new_statusfile);
return 0;
}
if (getenv(udpkg_quiet) == NULL) {
printf("(Updating database...)\n");
}
- while (((line = get_line_from_file(fin)) != NULL) && (feof(fin) != 0)) {
+
+ while (((line = get_line_from_file(fin)) != NULL) && !feof(fin)) {
line[strlen(line)] = 0; /* trim newline */
/* If we see a package header, find out if it's a package
* that we have processed. if so, we skip that block for
fclose(fin);
fclose(fout);
- r = rename(STATUSFILE, STATUSFILE ".bak");
+ r = rename(statusfile, bak_statusfile);
if (r == 0) {
- r = rename(STATUSFILE ".new", STATUSFILE);
+ r = rename(new_statusfile, statusfile);
}
- return 0;
-}
-/*
- * Main udpkg implementation routines
- */
-
-#ifdef DODEBUG
-static int do_system(const char *cmd)
-{
- DPRINTF("cmd is %s\n", cmd);
- return system(cmd);
+ return 0;
}
-#else
-#define do_system(cmd) system(cmd)
-#endif
static int is_file(const char *fn)
{
int r;
char postinst[1024];
char buf[1024];
+
DPRINTF("Configuring %s\n", pkg->package);
pkg->status &= status_statusmask;
snprintf(postinst, sizeof(postinst), "%s%s.postinst", infodir, pkg->package);
+
if (is_file(postinst)) {
snprintf(buf, sizeof(buf), "%s configure", postinst);
if ((r = do_system(buf)) != 0) {
return 1;
}
}
-
pkg->status |= status_statusinstalled;
return 0;
static int dpkg_dounpack(package_t *pkg)
{
- int r = 0;
- char *cwd, *p;
- FILE *infp, *outfp;
+ int r = 0, i;
+ char *cwd;
+ FILE *outfp;
+ char *src_file = NULL;
+ char *dst_file = NULL;
+ char *lst_file = NULL;
+ char *adminscripts[] = { "/prerm", "/postrm", "/preinst", "/postinst",
+ "/conffiles", "/md5sums", "/shlibs", "/templates" };
char buf[1024], buf2[1024];
- int i;
- char *adminscripts[] = { "prerm", "postrm", "preinst", "postinst",
- "conffiles", "md5sums", "shlibs",
- "templates" };
DPRINTF("Unpacking %s\n", pkg->package);
cwd = getcwd(0, 0);
chdir("/");
- snprintf(buf, sizeof(buf), "ar -p %s data.tar.gz|zcat|tar -xf -", pkg->file);
- if (SYSTEM(buf) == 0) {
- /* Installs the package scripts into the info directory */
- for (i = 0; i < sizeof(adminscripts) / sizeof(adminscripts[0]); i++) {
- snprintf(buf, sizeof(buf), "%s%s/%s",
- DPKGCIDIR, pkg->package, adminscripts[i]);
- snprintf(buf2, sizeof(buf), "%s%s.%s",
- infodir, pkg->package, adminscripts[i]);
- if (copy_file(buf, buf2, TRUE, FALSE, FALSE) < 0) {
- fprintf(stderr, "Cannot copy %s to %s: %s\n",
- buf, buf2, strerror(errno));
- r = 1;
- break;
- } else {
- /* ugly hack to create the list file; should
- * probably do something more elegant
- *
- * why oh why does dpkg create the list file
- * so oddly...
- */
- snprintf(buf, sizeof(buf),
- "ar -p %s data.tar.gz|zcat|tar -tf -",
- pkg->file);
- snprintf(buf2, sizeof(buf2),
- "%s%s.list", infodir, pkg->package);
- if ((infp = popen(buf, "r")) == NULL ||
- (outfp = fopen(buf2, "w")) == NULL) {
- fprintf(stderr, "Cannot create %s\n",
- buf2);
- r = 1;
- break;
- }
- while (fgets(buf, sizeof(buf), infp) &&
- !feof(infp)) {
- p = buf;
- if (*p == '.') p++;
- if (*p == '/' && *(p+1) == '\n') {
- *(p+1) = '.';
- *(p+2) = '\n';
- *(p+3) = 0;
- }
- if (p[strlen(p)-2] == '/') {
- p[strlen(p)-2] = '\n';
- p[strlen(p)-1] = 0;
- }
- fputs(p, outfp);
- }
- fclose(infp);
- fclose(outfp);
- }
+ deb_extract(dpkg_deb_extract, "/", pkg->file);
+
+ /* Installs the package scripts into the info directory */
+ for (i = 0; i < sizeof(adminscripts) / sizeof(adminscripts[0]); i++) {
+ /* The full path of the current location of the admin file */
+ src_file = xrealloc(src_file, strlen(dpkgcidir) + strlen(pkg->package) + strlen(adminscripts[i]) + 1);
+ strcpy(src_file, dpkgcidir);
+ strcat(src_file, pkg->package);
+ strcat(src_file, adminscripts[i]);
+
+ /* the full path of where we want the file to be copied to */
+ dst_file = xrealloc(dst_file, strlen(infodir) + strlen(pkg->package) + strlen(adminscripts[i]) + 1);
+ strcpy(dst_file, infodir);
+ strcat(dst_file, pkg->package);
+ strcat(dst_file, adminscripts[i]);
+
+ /* copy admin file to permanent home */
+ if (copy_file(src_file, dst_file, TRUE, FALSE, FALSE) < 0) {
+ error_msg_and_die("Cannot copy %s to %s ", buf, buf2);
}
- pkg->status &= status_wantmask;
- pkg->status |= status_wantinstall;
- pkg->status &= status_flagmask;
- pkg->status |= status_flagok;
- pkg->status &= status_statusmask;
- if (r == 0)
- pkg->status |= status_statusunpacked;
- else
- pkg->status |= status_statushalfinstalled;
+
+ /* create the list file */
+ lst_file = (char *) xmalloc(strlen(infodir) + strlen(pkg->package) + 6);
+ strcpy(lst_file, infodir);
+ strcat(lst_file, pkg->package);
+ strcat(lst_file, ".list");
+ outfp = freopen(lst_file, "w", stdout);
+ deb_extract(dpkg_deb_list, NULL, pkg->file);
+ stdout = freopen(NULL, "w", outfp);
+
+ printf("done\n");
+ getchar();
+
+ fclose(outfp);
+ }
+
+ pkg->status &= status_wantmask;
+ pkg->status |= status_wantinstall;
+ pkg->status &= status_flagmask;
+ pkg->status |= status_flagok;
+ pkg->status &= status_statusmask;
+
+ if (r == 0) {
+ pkg->status |= status_statusunpacked;
+ } else {
+ pkg->status |= status_statushalfinstalled;
}
chdir(cwd);
return r;
}
-static int dpkg_doinstall(package_t *pkg)
-{
- DPRINTF("Installing %s\n", pkg->package);
- return (dpkg_dounpack(pkg) || dpkg_doconfigure(pkg));
-}
-
+/*
+ * Extract and parse the control.tar.gz from the specified package
+ */
static int dpkg_unpackcontrol(package_t *pkg)
{
- int r = 1;
- char *cwd = 0;
- char *p;
- char buf[1024];
- FILE *f;
+ char *tmp_name;
+ FILE *file;
+ int length;
- p = strrchr(pkg->file, '/');
- if (p) p++; else p = pkg->file;
- p = pkg->package = strdup(p);
- while (*p != 0 && *p != '_' && *p != '.') p++;
- *p = 0;
+ /* clean the temp directory (dpkgcidir) be recreating it */
+ remove_dpkgcidir();
+ if (mkdir(dpkgcidir, S_IRWXU) != 0) {
+ perror("mkdir");
+ return EXIT_FAILURE;
+ }
- cwd = getcwd(0, 0);
- snprintf(buf, sizeof(buf), "%s%s", DPKGCIDIR, pkg->package);
- DPRINTF("dir = %s\n", buf);
- if (mkdir(buf, S_IRWXU) == 0 && chdir(buf) == 0) {
- snprintf(buf, sizeof(buf), "ar -p %s control.tar.gz|zcat|tar -xf -",
- pkg->file);
- if (SYSTEM(buf) == 0) {
- if ((f = fopen("control", "r")) != NULL) {
- control_read(f, pkg);
- r = 0;
- }
- }
+ /*
+ * Get the package name from the file name,
+ * first remove the directories
+ */
+ if ((tmp_name = strrchr(pkg->file, '/')) == NULL) {
+ tmp_name = pkg->file;
+ } else {
+ tmp_name++;
+ }
+ /* now remove trailing version numbers etc */
+ length = strcspn(tmp_name, "_.");
+ pkg->package = (char *) xmalloc(length + 1);
+ /* store the package name */
+ strncpy(pkg->package, tmp_name, length);
+
+ /* work out the full extraction path */
+ tmp_name = (char *) xmalloc(strlen(dpkgcidir) + strlen(pkg->package) + 9);
+ memset(tmp_name, 0, strlen(dpkgcidir) + strlen(pkg->package) + 9);
+ strcpy(tmp_name, dpkgcidir);
+ strcat(tmp_name, pkg->package);
+
+ /* extract control.tar.gz to the full extraction path */
+ deb_extract(dpkg_deb_control, tmp_name, pkg->file);
+
+ /* parse the extracted control file */
+ strcat(tmp_name, "/control");
+ if ((file = fopen(tmp_name, "r")) == NULL) {
+ return EXIT_FAILURE;
+ }
+ if (control_read(file, pkg) == EXIT_FAILURE) {
+ return EXIT_FAILURE;
}
- chdir(cwd);
- free(cwd);
- return r;
+ return EXIT_SUCCESS;
}
-static int dpkg_unpack(package_t *pkgs)
+static int dpkg_unpack(package_t *pkgs, void *status)
{
int r = 0;
package_t *pkg;
- void *status = status_read();
- if (SYSTEM("rm -rf -- " DPKGCIDIR) != 0 ||
- mkdir(DPKGCIDIR, S_IRWXU) != 0) {
- perror("mkdir");
- return 1;
- }
-
for (pkg = pkgs; pkg != 0; pkg = pkg->next) {
- dpkg_unpackcontrol(pkg);
- r = dpkg_dounpack(pkg);
- if (r != 0) break;
+ if (dpkg_unpackcontrol(pkg) == EXIT_FAILURE) {
+ return EXIT_FAILURE;
+ }
+ if ((r = dpkg_dounpack(pkg)) != 0 ) {
+ break;
+ }
}
status_merge(status, pkgs);
- SYSTEM("rm -rf -- " DPKGCIDIR);
+ remove_dpkgcidir();
+
return r;
}
-static int dpkg_configure(package_t *pkgs)
+static int dpkg_configure(package_t *pkgs, void *status)
{
int r = 0;
void *found;
package_t *pkg;
- void *status = status_read();
+
for (pkg = pkgs; pkg != 0 && r == 0; pkg = pkg->next) {
found = tfind(pkg, &status, package_compare);
+
if (found == 0) {
fprintf(stderr, "Trying to configure %s, but it is not installed\n", pkg->package);
r = 1;
- } else {
- /* configure the package listed in the status file;
- * not pkg, as we have info only for the latter */
+ }
+ /* configure the package listed in the status file;
+ * not pkg, as we have info only for the latter
+ */
+ else {
r = dpkg_doconfigure(*(package_t **)found);
}
}
status_merge(status, 0);
+
return r;
}
-static int dpkg_install(package_t *pkgs)
+static int dpkg_install(package_t *pkgs, void *status)
{
package_t *p, *ordered = 0;
- void *status = status_read();
- if (SYSTEM("rm -rf -- " DPKGCIDIR) != 0 ||
- mkdir(DPKGCIDIR, S_IRWXU) != 0) {
- perror("mkdir");
- return 1;
- }
-
+
/* Stage 1: parse all the control information */
- for (p = pkgs; p != 0; p = p->next)
- if (dpkg_unpackcontrol(p) != 0) {
+ for (p = pkgs; p != 0; p = p->next) {
+ if (dpkg_unpackcontrol(p) == EXIT_FAILURE) {
perror(p->file);
- /* force loop break, and prevents further ops */
- pkgs = 0;
+ return EXIT_FAILURE;
}
-
+ }
+
/* Stage 2: resolve dependencies */
#ifdef DODEPENDS
ordered = depends_resolve(pkgs, status);
p->status &= status_flagmask;
p->status |= status_flagok;
- if (dpkg_doinstall(p) != 0) {
+ DPRINTF("Installing %s\n", p->package);
+ if (dpkg_dounpack(p) != 0) {
+ perror(p->file);
+ }
+ if (dpkg_doconfigure(p) != 0) {
perror(p->file);
}
}
if (ordered != 0) {
status_merge(status, pkgs);
}
- SYSTEM("rm -rf -- " DPKGCIDIR);
+ remove_dpkgcidir();
+
return 0;
}
-static int dpkg_remove(package_t *pkgs)
+static int dpkg_remove(package_t *pkgs, void *status)
{
package_t *p;
- void *status = status_read();
+
for (p = pkgs; p != 0; p = p->next)
{
}
status_merge(status, 0);
+
return 0;
}
char *s;
package_t *p, *packages = NULL;
char *cwd = getcwd(0, 0);
+ void *status = NULL;
+
while (*++argv) {
if (**argv == '-') {
/* Nasty little hack to "parse" long options. */
s = *argv;
- while (*s == '-')
+ while (*s == '-') {
s++;
+ }
opt=s[0];
} else {
p = (package_t *)xmalloc(sizeof(package_t));
memset(p, 0, sizeof(package_t));
+
if (**argv == '/') {
p->file = *argv;
} else
} else {
p->package = strdup(*argv);
}
+
p->next = packages;
packages = p;
- }
-
+ }
}
+
+ status = status_read();
+
switch (opt) {
case 'i':
- return dpkg_install(packages);
+ return dpkg_install(packages, status);
case 'r':
- return dpkg_remove(packages);
+ return dpkg_remove(packages, status);
case 'u':
- return dpkg_unpack(packages);
+ return dpkg_unpack(packages, status);
case 'c':
- return dpkg_configure(packages);
+ return dpkg_configure(packages, status);
+ default :
+ show_usage();
+ return EXIT_FAILURE;
}
-
- /* if it falls through to here, some of the command line options were
- wrong */
- usage(dpkg_usage);
- return 0;
-}
\ No newline at end of file
+}
projects / oweals / busybox.git / blobdiff