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/* $OpenBSD: perform.c,v 1.5 1998/10/13 23:09:50 marc Exp $ */
#ifndef lint
static const char *rcsid = "$OpenBSD: perform.c,v 1.5 1998/10/13 23:09:50 marc 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 <err.h>
#include "lib.h"
#include "delete.h"
static int pkg_do(char *);
static void sanity_check(char *);
static int undepend(const char *, 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_t Plist;
/* This is seriously ugly code following. Written very fast! */
static int
pkg_do(char *pkg)
{
FILE *cfile;
char home[FILENAME_MAX];
plist_t *p;
char *tmp;
/* Reset some state */
if (Plist.head)
free_plist(&Plist);
(void) snprintf(LogDir, sizeof(LogDir), "%s/%s", (tmp = getenv(PKG_DBDIR)) ? tmp : DEF_LOG_DIR,
pkg);
if (!fexists(LogDir)) {
warnx("no such package '%s' 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)) {
char buf[512];
warnx("package `%s' is required by these other packages\n"
"and may not be deinstalled%s:",
pkg, 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
warnx("cannot open requirements file `%s'", REQUIRED_BY_FNAME);
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 (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)) {
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.\n");
else {
vsystem("chmod +x %s", DEINSTALL_FNAME); /* make sure */
if (vsystem("./%s %s DEINSTALL", DEINSTALL_FNAME, pkg)) {
warnx("deinstall script returned error status");
if (!Force)
return 1;
}
}
}
if (chdir(home) == FAIL) {
cleanup(0);
errx(2, "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)
warnx(
"couldn't entirely delete package (perhaps the packing list is\n"
"incorrectly specified?)");
if (vsystem("%s -r %s", REMOVE_CMD, LogDir)) {
warnx("couldn't remove log entry in %s, deinstall failed", LogDir);
if (!Force)
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)
findmatchingname((tmp = getenv(PKG_DBDIR)) ? tmp : DEF_LOG_DIR,
p->name, undepend, pkg);
}
return 0;
}
static void
sanity_check(char *pkg)
{
if (!fexists(CONTENTS_FNAME)) {
cleanup(0);
errx(2, "installed package %s has no %s file!", pkg, CONTENTS_FNAME);
}
}
void
cleanup(int sig)
{
/* Nothing to do */
if(sig) /* in case this is ever used as a signal handler */
exit(1);
}
/* deppkgname is the pkg from which's +REQUIRED_BY file we are
* about to remove pkg2delname. This function is called from
* findmatchingname(), deppkgname is expanded from a (possible) pattern.
*/
int
undepend(const char *deppkgname, char *pkg2delname)
{
char fname[FILENAME_MAX], ftmp[FILENAME_MAX];
char fbuf[FILENAME_MAX];
FILE *fp, *fpwr;
char *tmp;
int s;
(void) snprintf(fname, sizeof(fname), "%s/%s/%s",
(tmp = getenv(PKG_DBDIR)) ? tmp : DEF_LOG_DIR,
deppkgname, REQUIRED_BY_FNAME);
fp = fopen(fname, "r");
if (fp == NULL) {
warnx("couldn't open dependency file `%s'", fname);
return 0;
}
(void) snprintf(ftmp, sizeof(ftmp), "%s.XXXXXX", fname);
s = mkstemp(ftmp);
if (s == -1) {
fclose(fp);
warnx("couldn't open temp file `%s'", ftmp);
return 0;
}
fpwr = fdopen(s, "w");
if (fpwr == NULL) {
close(s);
fclose(fp);
warnx("couldn't fdopen temp file `%s'", ftmp);
remove(ftmp);
return 0;
}
while (fgets(fbuf, sizeof(fbuf), fp) != NULL) {
if (fbuf[strlen(fbuf)-1] == '\n')
fbuf[strlen(fbuf)-1] = '\0';
if (strcmp(fbuf, pkg2delname)) /* no match */
fputs(fbuf, fpwr), putc('\n', fpwr);
}
(void) fclose(fp);
if (fchmod(s, 0644) == FAIL) {
warnx("error changing permission of temp file `%s'", ftmp);
fclose(fpwr);
remove(ftmp);
return 0;
}
if (fclose(fpwr) == EOF) {
warnx("error closing temp file `%s'", ftmp);
remove(ftmp);
return 0;
}
if (rename(ftmp, fname) == -1)
warnx("error renaming `%s' to `%s'", ftmp, fname);
remove(ftmp); /* just in case */
return 0;
}
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