693 lines
18 KiB
C
693 lines
18 KiB
C
/* $NetBSD: perform.c,v 1.31 2000/05/07 00:33:28 hubertf Exp $ */
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static const char *rcsid = "from FreeBSD Id: perform.c,v 1.15 1997/10/13 15:03:52 jkh Exp";
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#else
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__RCSID("$NetBSD: perform.c,v 1.31 2000/05/07 00:33:28 hubertf Exp $");
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#endif
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#endif
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/*
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* FreeBSD install - a package for the installation and maintainance
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* of non-core utilities.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* Jordan K. Hubbard
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* 18 July 1993
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*
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* This is the main body of the delete module.
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*
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*/
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/*
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* Copyright (c) 1999 Christian E. Hopps
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Added the require find and require delete code
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*/
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#include <err.h>
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#include <fcntl.h>
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#include "lib.h"
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#include "delete.h"
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/* In which direction to search in require_find() */
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typedef enum {
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FIND_UP, FIND_DOWN
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} rec_find_t;
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static int require_find_recursive_up(lpkg_t *);
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static int require_find_recursive_down(lpkg_t *, package_t *);
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static int require_find(char *, rec_find_t);
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static int require_delete(char *, int);
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static void require_print(void);
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static int undepend(const char *deppkgname, char *pkg2delname);
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static char LogDir[FILENAME_MAX];
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static char linebuf[FILENAME_MAX];
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static char pkgdir[FILENAME_MAX];
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static package_t Plist;
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static lpkg_head_t lpfindq;
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static lpkg_head_t lpdelq;
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/*
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* Called to see if pkg is already installed as some other version,
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* note found version in "note".
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*/
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static int
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note_whats_installed(const char *found, char *note)
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{
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(void) strcpy(note, found);
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return 0;
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}
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static void
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sanity_check(char *pkg)
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{
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if (!fexists(CONTENTS_FNAME)) {
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cleanup(0);
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errx(2, "installed package %s has no %s file!",
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pkg, CONTENTS_FNAME);
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}
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}
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void
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cleanup(int sig)
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{
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/* Nothing to do */
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if (sig) /* in case this is ever used as a signal handler */
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exit(1);
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}
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/*
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* deppkgname is the pkg from which's +REQUIRED_BY file we are
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* about to remove pkg2delname. This function is called from
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* findmatchingname(), deppkgname is expanded from a (possible) pattern.
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*/
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int
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undepend(const char *deppkgname, char *pkg2delname)
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{
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char fname[FILENAME_MAX], ftmp[FILENAME_MAX];
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char fbuf[FILENAME_MAX];
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FILE *fp, *fpwr;
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char *tmp;
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int s;
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(void) snprintf(fname, sizeof(fname), "%s/%s/%s",
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(tmp = getenv(PKG_DBDIR)) ? tmp : DEF_LOG_DIR,
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deppkgname, REQUIRED_BY_FNAME);
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fp = fopen(fname, "r");
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if (fp == NULL) {
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warnx("couldn't open dependency file `%s'", fname);
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return 0;
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}
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(void) snprintf(ftmp, sizeof(ftmp), "%s.XXXXXX", fname);
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s = mkstemp(ftmp);
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if (s == -1) {
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fclose(fp);
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warnx("couldn't open temp file `%s'", ftmp);
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return 0;
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}
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fpwr = fdopen(s, "w");
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if (fpwr == NULL) {
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close(s);
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fclose(fp);
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warnx("couldn't fdopen temp file `%s'", ftmp);
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remove(ftmp);
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return 0;
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}
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while (fgets(fbuf, sizeof(fbuf), fp) != NULL) {
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if (fbuf[strlen(fbuf) - 1] == '\n')
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fbuf[strlen(fbuf) - 1] = '\0';
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if (strcmp(fbuf, pkg2delname)) /* no match */
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fputs(fbuf, fpwr), putc('\n', fpwr);
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}
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(void) fclose(fp);
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if (fchmod(s, 0644) == FAIL) {
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warnx("error changing permission of temp file `%s'", ftmp);
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fclose(fpwr);
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remove(ftmp);
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return 0;
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}
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if (fclose(fpwr) == EOF) {
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warnx("error closing temp file `%s'", ftmp);
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remove(ftmp);
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return 0;
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}
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if (rename(ftmp, fname) == -1)
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warnx("error renaming `%s' to `%s'", ftmp, fname);
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remove(ftmp); /* just in case */
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return 0;
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}
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/*
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* Delete from directory 'home' all packages on lpkg_list.
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* If tryall is set, ignore errors from pkg_delete(1).
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*/
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int
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require_delete(char *home, int tryall)
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{
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lpkg_t *lpp;
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int rv, fail;
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char *tmp;
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int oldcwd;
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/* save cwd */
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oldcwd = open(".", O_RDONLY, 0);
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if (oldcwd == -1)
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err(1, "cannot open \".\"");
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(void) snprintf(pkgdir, sizeof(pkgdir), "%s",
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(tmp = getenv(PKG_DBDIR)) ? tmp : DEF_LOG_DIR);
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/* walk list of things to delete */
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fail = 0;
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lpp = TAILQ_FIRST(&lpdelq);
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for (; lpp; lpp = TAILQ_NEXT(lpp, lp_link)) {
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int rm_installed; /* delete expanded pkg, not @pkgdep value */
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char installed[FILENAME_MAX];
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/* go to the db dir */
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if (chdir(pkgdir) == FAIL) {
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warnx("unable to change directory to %s, deinstall failed (1)",
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pkgdir);
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fail = 1;
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break;
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}
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/* look to see if package was already deleted */
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rm_installed = 0;
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if (ispkgpattern(lpp->lp_name)) {
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if (findmatchingname(".", lpp->lp_name, note_whats_installed, installed) != 1) {
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warnx("%s appears to have been deleted", lpp->lp_name);
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continue;
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}
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rm_installed = 1;
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} else {
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if (!fexists(lpp->lp_name)) {
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warnx("%s appears to have been deleted", lpp->lp_name);
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continue;
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}
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}
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/* return home for execution of command */
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if (chdir(home) == FAIL) {
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warnx("unable to change directory to %s, deinstall failed (2)", home);
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fail = 1;
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break;
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}
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if (Verbose)
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printf("deinstalling %s\n", rm_installed?installed:lpp->lp_name);
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/* delete the package */
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if (Fake)
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rv = 0;
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else
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rv = vsystem("%s %s %s %s %s %s %s %s %s", ProgramPath,
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Prefix ? "-p" : "",
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Prefix ? Prefix : "",
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Verbose ? "-v" : "",
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Force ? "-f" : "",
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NoDeInstall ? "-D" : "",
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CleanDirs ? "-d" : "",
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Fake ? "-n" : "",
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rm_installed?installed:lpp->lp_name);
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/* check for delete failure */
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if (rv && !tryall) {
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fail = 1;
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warnx("had problem removing %s%s", rm_installed?installed:lpp->lp_name,
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Force ? ", continuing" : "");
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if (!Force)
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break;
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}
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}
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/* cleanup list */
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while ((lpp = TAILQ_FIRST(&lpdelq))) {
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TAILQ_REMOVE(&lpdelq, lpp, lp_link);
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free_lpkg(lpp);
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}
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/* return to the log dir */
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if (fchdir(oldcwd) == FAIL) {
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warnx("unable to change to previous directory, deinstall failed");
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fail = 1;
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}
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return (fail);
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}
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/*
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* Recursively find all packages "up" the tree (follow +REQUIRED_BY).
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* Return 1 on errors
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*/
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int
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require_find_recursive_up(lpkg_t *thislpp)
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{
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lpkg_head_t reqq;
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lpkg_t *lpp = NULL;
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FILE *cfile;
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char *nl, *tmp;
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/* see if we are on the find queue -- circular dependency */
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if ((lpp = find_on_queue(&lpfindq, thislpp->lp_name))) {
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warnx("circular dependency found for pkg %s", lpp->lp_name);
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return (1);
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}
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TAILQ_INIT(&reqq);
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(void) snprintf(pkgdir, sizeof(pkgdir), "%s/%s",
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(tmp = getenv(PKG_DBDIR)) ? tmp : DEF_LOG_DIR, thislpp->lp_name);
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/* change to package's dir */
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if (chdir(pkgdir) == FAIL) {
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warnx("unable to change directory to %s! deinstall failed", pkgdir);
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return (1);
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}
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/* terminate recursion if no required by's */
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if (isemptyfile(REQUIRED_BY_FNAME))
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return (0);
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/* get packages that directly require us */
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cfile = fopen(REQUIRED_BY_FNAME, "r");
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if (!cfile) {
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warnx("cannot open requirements file `%s'", REQUIRED_BY_FNAME);
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return (1);
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}
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while (fgets(linebuf, sizeof(linebuf), cfile)) {
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if ((nl = strrchr(linebuf, '\n')))
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*nl = 0;
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lpp = alloc_lpkg(linebuf);
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TAILQ_INSERT_TAIL(&reqq, lpp, lp_link);
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}
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fclose(cfile);
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/* put ourselves on the top of the find queue */
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TAILQ_INSERT_HEAD(&lpfindq, thislpp, lp_link);
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while ((lpp = TAILQ_FIRST(&reqq))) {
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/* remove a direct req from our queue */
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TAILQ_REMOVE(&reqq, lpp, lp_link);
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/* find direct required requires */
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if (require_find_recursive_up(lpp))
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goto fail;
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/* all requires taken care of, add to tail of delete queue
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* if not already there */
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if (find_on_queue(&lpdelq, lpp->lp_name))
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free_lpkg(lpp);
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else
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TAILQ_INSERT_TAIL(&lpdelq, lpp, lp_link);
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}
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/* take ourselves off the find queue */
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TAILQ_REMOVE(&lpfindq, thislpp, lp_link);
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return (0);
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fail:
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while ((lpp = TAILQ_FIRST(&reqq))) {
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TAILQ_REMOVE(&reqq, lpp, lp_link);
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free_lpkg(lpp);
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}
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return (1);
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}
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/*
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* Recursively find all packages "down" the tree (follow @pkgdep).
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* Return 1 on errors
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*/
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int
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require_find_recursive_down(lpkg_t *thislpp, package_t *plist)
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{
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plist_t *p;
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lpkg_t *lpp, *lpp2;
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lpkg_head_t reqq;
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int rc, fail = 0;
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/* see if we are on the find queue -- circular dependency */
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if ((lpp = find_on_queue(&lpfindq, thislpp->lp_name))) {
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warnx("circular dependency found for pkg %s", lpp->lp_name);
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return (1);
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}
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TAILQ_INIT(&reqq);
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/* width-first scan */
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/* first enqueue all @pkgdep's to lpdelq, then (further below)
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* go in recursively */
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for (p = plist->head; p; p = p->next) {
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switch (p->type) {
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case PLIST_PKGDEP:
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lpp = alloc_lpkg(p->name);
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TAILQ_INSERT_TAIL(&reqq, lpp, lp_link);
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lpp2 = find_on_queue(&lpdelq, p->name);
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if (lpp2)
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TAILQ_REMOVE(&lpdelq, lpp2, lp_link);
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lpp = alloc_lpkg(p->name);
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TAILQ_INSERT_TAIL(&lpdelq, lpp, lp_link);
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break;
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default:
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break;
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}
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}
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while ((lpp = TAILQ_FIRST(&reqq))) {
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FILE *cfile;
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package_t rPlist;
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char *tmp;
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plist_t *p;
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/* remove a direct req from our queue */
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TAILQ_REMOVE(&reqq, lpp, lp_link);
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/* Reset some state */
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rPlist.head = NULL;
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rPlist.tail = NULL;
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/* prepare for recursion */
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chdir ((tmp = getenv(PKG_DBDIR)) ? tmp : DEF_LOG_DIR);
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if (ispkgpattern(lpp->lp_name)) {
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char installed[FILENAME_MAX];
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if (findmatchingname(".", lpp->lp_name, note_whats_installed, installed) != 1) {
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warnx("cannot remove dependency for pkg-pattern %s", lpp->lp_name);
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fail = 1;
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goto fail;
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}
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if (chdir(installed) == -1) {
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warnx("can't chdir to %s", installed);
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fail = 1;
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goto fail;
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}
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sanity_check(installed);
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} else {
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if (chdir(lpp->lp_name) == -1) {
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warnx("cannot remove dependency from %s", lpp->lp_name);
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fail = 1;
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goto fail;
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}
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sanity_check(lpp->lp_name);
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}
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cfile = fopen(CONTENTS_FNAME, "r");
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if (!cfile) {
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warn("unable to open '%s' file", CONTENTS_FNAME);
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fail = 1;
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goto fail;
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}
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/* If we have a prefix, add it now */
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if (Prefix)
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add_plist(&rPlist, PLIST_CWD, Prefix);
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read_plist(&rPlist, cfile);
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fclose(cfile);
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p = find_plist(&rPlist, PLIST_CWD);
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if (!p) {
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warnx("package '%s' doesn't have a prefix", lpp->lp_name);
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fail = 1;
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goto fail;
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}
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/* put ourselves on the top of the find queue */
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TAILQ_INSERT_HEAD(&lpfindq, thislpp, lp_link);
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rc = require_find_recursive_down(lpp, &rPlist);
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if (rc) {
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fail = 1;
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goto fail;
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}
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/* take ourselves off the find queue */
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TAILQ_REMOVE(&lpfindq, thislpp, lp_link);
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free_lpkg(lpp);
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}
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fail:
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/* Clean out reqq */
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while ((lpp = TAILQ_FIRST(&reqq))) {
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TAILQ_REMOVE(&reqq, lpp, lp_link);
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free_lpkg(lpp);
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}
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return fail;
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}
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/*
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* Start recursion in the one or other direction.
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*/
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int
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require_find(char *pkg, rec_find_t updown)
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{
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lpkg_t *lpp;
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int rv = 0;
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TAILQ_INIT(&lpfindq);
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TAILQ_INIT(&lpdelq);
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lpp = alloc_lpkg(pkg);
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switch (updown) {
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case FIND_UP:
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rv = require_find_recursive_up(lpp);
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break;
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case FIND_DOWN:
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rv = require_find_recursive_down(lpp, &Plist);
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break;
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}
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free_lpkg(lpp);
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return (rv);
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}
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void
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require_print(void)
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{
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lpkg_t *lpp;
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/* print all but last -- deleting if requested */
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while ((lpp = TAILQ_FIRST(&lpdelq))) {
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TAILQ_REMOVE(&lpdelq, lpp, lp_link);
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fprintf(stderr, "\t%s\n", lpp->lp_name);
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free_lpkg(lpp);
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}
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}
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/*
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* This is seriously ugly code following. Written very fast!
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*/
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static int
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pkg_do(char *pkg)
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{
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FILE *cfile;
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char home[FILENAME_MAX];
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plist_t *p;
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char *tmp;
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/* Reset some state */
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if (Plist.head)
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free_plist(&Plist);
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|
|
(void) snprintf(LogDir, sizeof(LogDir), "%s/%s", (tmp = getenv(PKG_DBDIR)) ? tmp : DEF_LOG_DIR,
|
|
pkg);
|
|
if (!fexists(LogDir) || !isdir(LogDir)) {
|
|
{
|
|
/* Check if the given package name matches something
|
|
* with 'pkg-[0-9]*' */
|
|
char try[FILENAME_MAX];
|
|
snprintf(try, FILENAME_MAX, "%s-[0-9]*", pkg);
|
|
if (findmatchingname(_pkgdb_getPKGDB_DIR(), try,
|
|
find_fn, NULL) != 0) {
|
|
return 0; /* we've just appended some names to the pkgs list,
|
|
* they will be processed after this package. */
|
|
}
|
|
}
|
|
|
|
/* No match */
|
|
warnx("package '%s' not installed", pkg);
|
|
return 1;
|
|
}
|
|
if (!getcwd(home, FILENAME_MAX)) {
|
|
cleanup(0);
|
|
errx(2, "unable to get current working directory!");
|
|
}
|
|
if (chdir(LogDir) == FAIL) {
|
|
warnx("unable to change directory to %s! deinstall failed", LogDir);
|
|
return 1;
|
|
}
|
|
if (!isemptyfile(REQUIRED_BY_FNAME)) {
|
|
/* This package is required by others. Either nuke
|
|
* them (-r), or stop. */
|
|
if (!Recurse_up)
|
|
warnx("package `%s' is required by other packages:", pkg);
|
|
else if (Verbose)
|
|
printf("Building list of packages that require `%s'"
|
|
" to deinstall\n", pkg);
|
|
if (require_find(pkg, FIND_UP)) {
|
|
if (!Force || Recurse_up)
|
|
return (1);
|
|
}
|
|
chdir(LogDir); /* CWD was changed by require_find() */
|
|
if (!Recurse_up) {
|
|
require_print();
|
|
if (!Force)
|
|
return 1;
|
|
} else
|
|
require_delete(home, 0);
|
|
}
|
|
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 (fexists(REQUIRE_FNAME)) {
|
|
if (Verbose)
|
|
printf("Executing 'require' script.\n");
|
|
vsystem("%s +x %s", CHMOD, REQUIRE_FNAME); /* be sure */
|
|
if (vsystem("./%s %s DEINSTALL", REQUIRE_FNAME, pkg)) {
|
|
warnx("package %s fails requirements %s", pkg,
|
|
Force ? "" : "- not deleted");
|
|
if (!Force)
|
|
return 1;
|
|
}
|
|
}
|
|
if (!NoDeInstall && fexists(DEINSTALL_FNAME)) {
|
|
if (Fake)
|
|
printf("Would execute de-install script at this point (arg: DEINSTALL).\n");
|
|
else {
|
|
vsystem("%s +x %s", CHMOD, DEINSTALL_FNAME); /* make sure */
|
|
if (vsystem("./%s %s DEINSTALL", DEINSTALL_FNAME, pkg)) {
|
|
warnx("deinstall script returned error status");
|
|
if (!Force)
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
if (!Fake) {
|
|
/* 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 (perhaps the packing list is\n"
|
|
"incorrectly specified?)");
|
|
}
|
|
/* Remove this package from the +REQUIRED_BY list of the packages this depends on */
|
|
for (p = Plist.head; p; p = p->next) {
|
|
if (p->type != PLIST_PKGDEP)
|
|
continue;
|
|
if (Verbose)
|
|
printf("Attempting to remove dependency on package `%s'\n", p->name);
|
|
if (!Fake)
|
|
findmatchingname((tmp = getenv(PKG_DBDIR)) ? tmp : DEF_LOG_DIR,
|
|
p->name, undepend, pkg);
|
|
}
|
|
if (Recurse_down) {
|
|
/* Also remove the packages further down, now that there's
|
|
* (most likely) nothing left which requires them. */
|
|
if (Verbose)
|
|
printf("Building list of packages that `%s' required\n", pkg);
|
|
if (require_find(pkg, FIND_DOWN))
|
|
return (1);
|
|
|
|
require_delete(home, 1);
|
|
}
|
|
if (!NoDeInstall && fexists(DEINSTALL_FNAME)) {
|
|
if (Fake)
|
|
printf("Would execute post-de-install script at this point (arg: POST-DEINSTALL).\n");
|
|
else {
|
|
vsystem("chmod +x %s", DEINSTALL_FNAME); /* make sure */
|
|
if (vsystem("./%s %s POST-DEINSTALL", DEINSTALL_FNAME, pkg)) {
|
|
warnx("post-deinstall script returned error status");
|
|
if (!Force)
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
/* Change out of LogDir before we remove it */
|
|
if (chdir(home) == FAIL) {
|
|
cleanup(0);
|
|
errx(2, "Toto! This doesn't look like Kansas anymore!");
|
|
}
|
|
if (!Fake) {
|
|
/* Finally nuke the +-files and the pkgdb-dir (/var/db/pkg/foo) */
|
|
if (vsystem("%s -r %s", REMOVE_CMD, LogDir)) {
|
|
warnx("couldn't remove log entry in %s, deinstall failed", LogDir);
|
|
if (!Force)
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
pkg_perform(lpkg_head_t *pkgs)
|
|
{
|
|
int err_cnt = 0;
|
|
int oldcwd;
|
|
lpkg_t *lpp;
|
|
|
|
/* save cwd */
|
|
oldcwd = open(".", O_RDONLY, 0);
|
|
if (oldcwd == -1)
|
|
err(1, "cannot open \".\"");
|
|
|
|
while ((lpp = TAILQ_FIRST(pkgs))) {
|
|
err_cnt += pkg_do(lpp->lp_name);
|
|
TAILQ_REMOVE(pkgs, lpp, lp_link);
|
|
free_lpkg(lpp);
|
|
if (fchdir(oldcwd) == FAIL)
|
|
err(1, "unable to change to previous directory");
|
|
}
|
|
return err_cnt;
|
|
}
|