1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
#ifndef lint
static const char *rcsid = "$Id: perform.c,v 1.9 1996/06/20 18:33:44 jkh 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);
setenv(PKG_PREFIX_VNAME,
(p = find_plist(&Plist, PLIST_CWD)) ? p->name : NULL, 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)) {
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)
whinge("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);
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)
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.XXXXXX", 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)
whinge("Error renaming `%s' to `%s'", ftmp, fname);
remove(ftmp); /* just in case */
return;
}
|
