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/* $OpenBSD: perform.c,v 1.3 1997/06/17 08:38:03 deraadt Exp $ */
#ifndef lint
static const char *rcsid = "$OpenBSD: perform.c,v 1.3 1997/06/17 08:38:03 deraadt Exp $";
#endif
/*
* 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 "lib.h"
#include "delete.h"
static int pkg_do(char *);
static void sanity_check(char *);
static void undepend(PackingList, char *);
static char LogDir[FILENAME_MAX];
int
pkg_perform(char **pkgs)
{
int i, err_cnt = 0;
for (i = 0; pkgs[i]; i++)
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 home[FILENAME_MAX];
PackingList p;
char *tmp;
/* Reset some state */
if (Plist.head)
free_plist(&Plist);
sprintf(LogDir, "%s/%s", (tmp = getenv(PKG_DBDIR)) ? tmp : DEF_LOG_DIR,
pkg);
if (!fexists(LogDir)) {
whinge("No such package '%s' installed.", pkg);
return 1;
}
if (!getcwd(home, FILENAME_MAX))
barf("Unable to get current working directory!");
if (chdir(LogDir) == FAIL) {
whinge("Unable to change directory to %s! Deinstall failed.", LogDir);
return 1;
}
if (!isemptyfile(REQUIRED_BY_FNAME)) {
char buf[512];
whinge("Package `%s' is required by these other packages", pkg);
whinge("and may not be deinstalled%s:", Force ? " (but I'll delete it anyway)" : "" );
cfile = fopen(REQUIRED_BY_FNAME, "r");
if (cfile) {
while (fgets(buf, sizeof(buf), cfile))
fprintf(stderr, "%s", buf);
fclose(cfile);
} else
whinge("cannot open requirements file `%s'", REQUIRED_BY_FNAME);
if (!Force)
return 1;
}
sanity_check(LogDir);
cfile = fopen(CONTENTS_FNAME, "r");
if (!cfile) {
whinge("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)
setenv(PKG_PREFIX_VNAME, p->name, 1);
else
unsetenv(PKG_PREFIX_VNAME);
if (fexists(REQUIRE_FNAME)) {
if (Verbose)
printf("Executing 'require' script.\n");
vsystem("chmod +x %s", REQUIRE_FNAME); /* be sure */
if (vsystem("./%s %s DEINSTALL", REQUIRE_FNAME, pkg)) {
whinge("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.\n");
else {
vsystem("chmod +x %s", DEINSTALL_FNAME); /* make sure */
if (vsystem("./%s %s DEINSTALL", DEINSTALL_FNAME, pkg)) {
whinge("De-Install script returned error status.");
if (!Force)
return 1;
}
}
}
if (chdir(home) == FAIL)
barf("Toto! This doesn't look like Kansas anymore!");
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)
warn("Couldn't entirely delete package (perhaps the packing list is\n"
"incorrectly specified?)\n");
if (vsystem("%s -r %s", REMOVE_CMD, LogDir)) {
whinge("Couldn't remove log entry in %s, de-install failed.", LogDir);
return 1;
}
}
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)
undepend(p, pkg);
}
return 0;
}
static void
sanity_check(char *pkg)
{
if (!fexists(CONTENTS_FNAME))
barf("Installed package %s has no %s file!", pkg, CONTENTS_FNAME);
}
void
cleanup(int sig)
{
/* Nothing to do */
}
static void
undepend(PackingList p, char *pkgname)
{
char fname[FILENAME_MAX], ftmp[FILENAME_MAX];
char fbuf[FILENAME_MAX];
FILE *fp, *fpwr;
char *tmp;
int s;
sprintf(fname, "%s/%s/%s",
(tmp = getenv(PKG_DBDIR)) ? tmp : DEF_LOG_DIR,
p->name, REQUIRED_BY_FNAME);
fp = fopen(fname, "r");
if (fp == NULL) {
whinge("Couldn't open dependency file `%s'", fname);
return;
}
sprintf(ftmp, "%s.XXXXXXXXXX", fname);
s = mkstemp(ftmp);
if (s == -1) {
fclose(fp);
whinge("Couldn't open temp file `%s'", ftmp);
return;
}
fpwr = fdopen(s, "w");
if (fpwr == NULL) {
close(s);
fclose(fp);
whinge("Couldn't fdopen temp file `%s'", ftmp);
remove(ftmp);
return;
}
while (fgets(fbuf, sizeof(fbuf), fp) != NULL) {
if (fbuf[strlen(fbuf)-1] == '\n')
fbuf[strlen(fbuf)-1] = '\0';
if (strcmp(fbuf, pkgname)) /* no match */
fputs(fbuf, fpwr), putc('\n', fpwr);
}
(void) fclose(fp);
if (fchmod(s, 0644) == FAIL) {
whinge("Error changing permission of temp file `%s'", ftmp);
fclose(fpwr);
remove(ftmp);
return;
}
if (fclose(fpwr) == EOF) {
whinge("Error closing temp file `%s'", ftmp);
remove(ftmp);
return;
}
if (rename(ftmp, fname) == -1)
warn("Error renaming `%s' to `%s'", ftmp, fname);
remove(ftmp); /* just in case */
return;
}
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