| Current Path : /usr/src/usr.sbin/pkg_install/delete/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //usr/src/usr.sbin/pkg_install/delete/perform.c |
/*
* FreeBSD install - a package for the installation and maintainance
* of non-core utilities.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Jordan K. Hubbard
* 18 July 1993
*
* This is the main body of the delete module.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/usr.sbin/pkg_install/delete/perform.c 225610 2011-09-16 09:09:58Z pluknet $");
#include <err.h>
#include "lib.h"
#include "delete.h"
static int pkg_do(char *);
static void sanity_check(char *);
static void undepend(char *, char *);
static char LogDir[FILENAME_MAX];
int
pkg_perform(char **pkgs)
{
char **matched, **rb, **rbtmp;
int errcode, i, j;
int err_cnt = 0;
struct reqr_by_entry *rb_entry;
struct reqr_by_head *rb_list;
if (MatchType != MATCH_EXACT) {
matched = matchinstalled(MatchType, pkgs, &errcode);
if (errcode != 0)
return 1;
/* Not reached */
/*
* Copy matched[] into pkgs[], because we'll need to use
* matchinstalled() later on.
*/
if (matched != NULL) {
pkgs = NULL;
for (i = 0; matched[i] != NULL; i++) {
pkgs = realloc(pkgs, sizeof(*pkgs) * (i + 2));
pkgs[i] = strdup(matched[i]);
}
pkgs[i] = NULL;
}
else switch (MatchType) {
case MATCH_GLOB:
break;
case MATCH_ALL:
warnx("no packages installed");
return 0;
case MATCH_EREGEX:
case MATCH_REGEX:
warnx("no packages match pattern(s)");
return 1;
default:
break;
}
}
err_cnt += sortdeps(pkgs);
for (i = 0; pkgs[i]; i++) {
if (Recursive == TRUE) {
errcode = requiredby(pkgs[i], &rb_list, FALSE, TRUE);
if (errcode < 0) {
err_cnt++;
} else if (errcode > 0) {
/*
* Copy values from the rb_list queue into argv-like NULL
* terminated list because requiredby() uses some static
* storage, while pkg_do() below will call this function,
* thus blowing our rb_list away.
*/
rbtmp = rb = alloca((errcode + 1) * sizeof(*rb));
if (rb == NULL) {
warnx("%s(): alloca() failed", __func__);
err_cnt++;
continue;
}
STAILQ_FOREACH(rb_entry, rb_list, link) {
*rbtmp = alloca(strlen(rb_entry->pkgname) + 1);
if (*rbtmp == NULL) {
warnx("%s(): alloca() failed", __func__);
err_cnt++;
continue;
}
strcpy(*rbtmp, rb_entry->pkgname);
rbtmp++;
}
*rbtmp = NULL;
err_cnt += sortdeps(rb);
for (j = 0; rb[j]; j++)
err_cnt += pkg_do(rb[j]);
}
}
err_cnt += pkg_do(pkgs[i]);
}
return err_cnt;
}
static Package Plist;
/* This is seriously ugly code following. Written very fast! */
static int
pkg_do(char *pkg)
{
FILE *cfile;
char *deporigin, **deporigins = NULL, **depnames = NULL, ***depmatches, home[FILENAME_MAX];
PackingList p;
int i, len;
int isinstalled;
/* support for separate pre/post install scripts */
int new_m = 0, dep_count = 0;
const char *pre_script = DEINSTALL_FNAME;
const char *post_script, *pre_arg, *post_arg;
struct reqr_by_entry *rb_entry;
struct reqr_by_head *rb_list;
int fd;
struct stat sb;
if (!pkg || !(len = strlen(pkg)))
return 1;
if (pkg[len - 1] == '/')
pkg[len - 1] = '\0';
/* Reset some state */
if (Plist.head)
free_plist(&Plist);
sprintf(LogDir, "%s/%s", LOG_DIR, pkg);
isinstalled = isinstalledpkg(pkg);
if (isinstalled == 0) {
warnx("no such package '%s' installed", pkg);
return 1;
} else if (isinstalled < 0) {
warnx("the package info for package '%s' is corrupt%s",
pkg, Force ? " (but I'll delete it anyway)" : " (use -f to force removal)");
if (!Force)
return 1;
if (!Fake) {
if (vsystem("%s -rf %s", REMOVE_CMD, LogDir)) {
warnx("couldn't remove log entry in %s, deinstall failed", LogDir);
} else {
warnx("couldn't completely deinstall package '%s',\n"
"only the log entry in %s was removed", pkg, LogDir);
}
}
return 0;
}
if (!getcwd(home, FILENAME_MAX)) {
cleanup(0);
errx(2, "%s: unable to get current working directory!", __func__);
}
if (chdir(LogDir) == FAIL) {
warnx("unable to change directory to %s! deinstall failed", LogDir);
return 1;
}
if (Interactive == TRUE) {
int first, ch;
(void)fprintf(stderr, "delete %s? ", pkg);
(void)fflush(stderr);
first = ch = getchar();
while (ch != '\n' && ch != EOF)
ch = getchar();
if (first != 'y' && first != 'Y')
return 0;
/* Not reached */
}
if (requiredby(pkg, &rb_list, FALSE, TRUE) < 0)
return 1;
if (!STAILQ_EMPTY(rb_list)) {
warnx("package '%s' is required by these other packages\n"
"and may not be deinstalled%s:",
pkg, Force ? " (but I'll delete it anyway)" : "");
STAILQ_FOREACH(rb_entry, rb_list, link)
fprintf(stderr, "%s\n", rb_entry->pkgname);
if (!Force)
return 1;
}
sanity_check(LogDir);
cfile = fopen(CONTENTS_FNAME, "r");
if (!cfile) {
warnx("unable to open '%s' file", CONTENTS_FNAME);
return 1;
}
/* If we have a prefix, add it now */
if (Prefix)
add_plist(&Plist, PLIST_CWD, Prefix);
read_plist(&Plist, cfile);
fclose(cfile);
p = find_plist(&Plist, PLIST_CWD);
if (!p) {
warnx("package '%s' doesn't have a prefix", pkg);
return 1;
}
setenv(PKG_PREFIX_VNAME, p->name, 1);
if ((fd = open(REQUIRE_FNAME, O_RDWR)) != -1) {
fstat(fd, &sb);
fchmod(fd, sb.st_mode | S_IXALL); /* be sure, chmod a+x */
close(fd);
if (Verbose)
printf("Executing 'require' script.\n");
if (vsystem("./%s %s DEINSTALL", REQUIRE_FNAME, pkg)) {
warnx("package %s fails requirements %s", pkg,
Force ? "" : "- not deleted");
if (!Force)
return 1;
}
}
/*
* Test whether to use the old method of passing tokens to deinstallation
* scripts, and set appropriate variables..
*/
if (fexists(POST_DEINSTALL_FNAME)) {
new_m = 1;
post_script = POST_DEINSTALL_FNAME;
pre_arg = post_arg = "";
} else if (fexists(DEINSTALL_FNAME)) {
post_script = DEINSTALL_FNAME;
pre_arg = "DEINSTALL";
post_arg = "POST-DEINSTALL";
} else {
post_script = pre_arg = post_arg = NULL;
}
if (!NoDeInstall && pre_script != NULL && (fd = open(pre_script, O_RDWR)) != -1) {
if (Fake)
printf("Would execute de-install script at this point.\n");
else {
fstat(fd, &sb);
fchmod(fd, sb.st_mode | S_IXALL); /* be sure, chmod a+x */
close(fd);
if (vsystem("./%s %s %s", pre_script, pkg, pre_arg)) {
warnx("deinstall script returned error status");
if (!Force)
return 1;
}
}
}
for (p = Plist.head; p ; p = p->next) {
if (p->type != PLIST_PKGDEP)
continue;
deporigin = (p->next != NULL && p->next->type == PLIST_DEPORIGIN) ? p->next->name :
NULL;
if (Verbose) {
printf("Trying to remove dependency on package '%s'", p->name);
if (deporigin != NULL)
printf(" with '%s' origin", deporigin);
printf(".\n");
}
if (!Fake) {
if (deporigin) {
deporigins = realloc(deporigins, (dep_count + 2) * sizeof(*deporigins));
depnames = realloc(depnames, (dep_count + 1) * sizeof(*depnames));
deporigins[dep_count] = deporigin;
deporigins[dep_count + 1] = NULL;
depnames[dep_count] = p->name;
dep_count++;
} else {
undepend(p->name, pkg);
}
}
}
if (dep_count > 0) {
/* Undepend all the dependencies at once */
depmatches = matchallbyorigin((const char **)deporigins, NULL);
free(deporigins);
if (depmatches) {
for (i = 0; i < dep_count; i++) {
if (depmatches[i]) {
char **tmp = depmatches[i];
int j;
for (j = 0; tmp[j] != NULL; j++)
undepend(tmp[j], pkg);
} else if (depnames[i]) {
undepend(depnames[i], pkg);
}
}
}
}
if (chdir(home) == FAIL) {
cleanup(0);
errx(2, "%s: unable to return to working directory %s!", __func__,
home);
}
/*
* Some packages aren't packed right, so we need to just ignore
* delete_package()'s status. Ugh! :-(
*/
if (delete_package(FALSE, CleanDirs, &Plist) == FAIL)
warnx(
"couldn't entirely delete package `%s'\n"
"(perhaps the packing list is incorrectly specified?)", pkg);
if (chdir(LogDir) == FAIL) {
warnx("unable to change directory to %s! deinstall failed", LogDir);
return 1;
}
if (!NoDeInstall && post_script != NULL && (fd = open(post_script, O_RDWR)) != -1) {
if (Fake)
printf("Would execute post-deinstall script at this point.\n");
else {
fstat(fd, &sb);
fchmod(fd, sb.st_mode | S_IXALL); /* be sure, chmod a+x */
close(fd);
if (vsystem("./%s %s %s", post_script, pkg, post_arg)) {
warnx("post-deinstall script returned error status");
if (!Force)
return 1;
}
}
}
if (chdir(home) == FAIL) {
cleanup(0);
errx(2, "%s: unable to return to working directory %s!", __func__,
home);
}
if (!Fake) {
if (vsystem("%s -r%c %s", REMOVE_CMD, Force ? 'f' : ' ', LogDir)) {
warnx("couldn't remove log entry in %s, deinstall failed", LogDir);
if (!Force)
return 1;
}
}
return 0;
}
static void
sanity_check(char *pkg)
{
if (!fexists(CONTENTS_FNAME)) {
cleanup(0);
errx(2, "%s: installed package %s has no %s file!", __func__,
pkg, CONTENTS_FNAME);
}
}
void
cleanup(int sig)
{
if (sig)
exit(1);
}
static void
undepend(char *p, char *pkgname)
{
char fname[FILENAME_MAX], ftmp[FILENAME_MAX];
FILE *fpwr;
int s;
struct reqr_by_entry *rb_entry;
struct reqr_by_head *rb_list;
if (requiredby(p, &rb_list, Verbose, FALSE) <= 0)
return;
snprintf(fname, sizeof(fname), "%s/%s/%s", LOG_DIR, p, REQUIRED_BY_FNAME);
snprintf(ftmp, sizeof(ftmp), "%s.XXXXXX", fname);
s = mkstemp(ftmp);
if (s == -1) {
warnx("couldn't open temp file '%s'", ftmp);
return;
}
fpwr = fdopen(s, "w");
if (fpwr == NULL) {
close(s);
warnx("couldn't fdopen temp file '%s'", ftmp);
goto cleanexit;
}
STAILQ_FOREACH(rb_entry, rb_list, link)
if (strcmp(rb_entry->pkgname, pkgname)) /* no match */
fputs(rb_entry->pkgname, fpwr), putc('\n', fpwr);
if (fchmod(s, 0644) == FAIL) {
warnx("error changing permission of temp file '%s'", ftmp);
fclose(fpwr);
goto cleanexit;
}
if (fclose(fpwr) == EOF) {
warnx("error closing temp file '%s'", ftmp);
goto cleanexit;
}
if (rename(ftmp, fname) == -1)
warnx("error renaming '%s' to '%s'", ftmp, fname);
cleanexit:
remove(ftmp);
return;
}