package.c revision 47041 
1/*
2 * The new sysinstall program.
3 *
4 * This is probably the last program in the `sysinstall' line - the next
5 * generation being essentially a complete rewrite.
6 *
7 * $Id: package.c,v 1.68 1999/05/07 20:31:36 jkh Exp $
8 *
9 * Copyright (c) 1995
10 *	Jordan Hubbard.  All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer,
17 *    verbatim and that no modifications are made prior to this
18 *    point in the file.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 *    notice, this list of conditions and the following disclaimer in the
21 *    documentation and/or other materials provided with the distribution.
22 *
23 * THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 */
36
37#include "sysinstall.h"
38#include <sys/errno.h>
39#include <sys/time.h>
40#include <sys/param.h>
41#include <sys/mount.h>
42#include <sys/stat.h>
43
44static Boolean sigpipe_caught = FALSE;
45
46static void
47catch_pipe(int sig)
48{
49    sigpipe_caught = TRUE;
50}
51
52/* Like package_extract, but assumes current media device */
53int
54package_add(char *name)
55{
56    if (!mediaVerify())
57	return DITEM_FAILURE;
58    return package_extract(mediaDevice, name, FALSE);
59}
60
61/* For use by dispatch */
62int
63packageAdd(dialogMenuItem *self)
64{
65    char *cp;
66
67    cp = variable_get(VAR_PACKAGE);
68    if (!cp) {
69	msgDebug("packageAdd:  No package name passed in package variable\n");
70	return DITEM_FAILURE;
71    }
72    else
73	return package_add(cp);
74}
75
76Boolean
77package_exists(char *name)
78{
79    char fname[FILENAME_MAX];
80    int status /* = vsystem("pkg_info -e %s", name) */;
81
82    /* If in "Latest" syntax, ignore; can't tell with these */
83    if (name[0] == '@')
84	return FALSE;
85
86    /* XXX KLUDGE ALERT!  This makes evil assumptions about how XXX
87     * packages register themselves and should *really be done with
88     * `pkg_info -e <name>' except that this it's too slow for an
89     * item check routine.. :-(
90     */
91    snprintf(fname, FILENAME_MAX, "/var/db/pkg/%s", name);
92    status = access(fname, R_OK);
93    if (isDebug())
94	msgDebug("package check for %s returns %s.\n", name, status ? "failure" : "success");
95    return !status;
96}
97
98/* Extract a package based on a namespec and a media device */
99int
100package_extract(Device *dev, char *name, Boolean depended)
101{
102    char tmp[200], path[511];
103    int ret, last_msg = 0;
104    FILE *fp;
105
106    /* Check to make sure it's not already there */
107    if (package_exists(name))
108	return DITEM_SUCCESS;
109
110    /* If necessary, initialize the ldconfig hints */
111    if (!file_readable("/var/run/ld.so.hints"))
112	vsystem("ldconfig /usr/lib /usr/local/lib /usr/X11R6/lib");
113
114    if (!dev->init(dev)) {
115	msgConfirm("Unable to initialize media type for package extract.");
116	return DITEM_FAILURE;
117    }
118
119    /* Be initially optimistic */
120    ret = DITEM_SUCCESS | DITEM_RESTORE;
121    /* Make a couple of paranoid locations for temp files to live if user specified none */
122    if (!variable_get(VAR_PKG_TMPDIR)) {
123	/* Set it to a location with as much space as possible */
124	variable_set2(VAR_PKG_TMPDIR, "/usr/tmp", 0);
125    }
126    Mkdir(variable_get(VAR_PKG_TMPDIR));
127    vsystem("chmod 1777 %s", variable_get(VAR_PKG_TMPDIR));
128
129    if (name[0] == '@') {
130	/* @ at the beginning of the package name means "get latest" */
131	sprintf(path, "packages/Latest/%s.tgz", ++name);
132    }
133    else if (!index(name, '/'))
134	sprintf(path, "packages/All/%s%s", name, strstr(name, ".tgz") ? "" : ".tgz");
135    else
136	sprintf(path, "%s%s", name, strstr(name, ".tgz") ? "" : ".tgz");
137
138    /* Set hints for pkg_add */
139    snprintf(tmp, sizeof tmp, "%s/Packages/All/", dev->name);
140    setenv("PKG_ADD_BASE", tmp, 1);
141    if (isDebug())
142	msgDebug("Set PKG_ADD_BASE to %s\n", tmp);
143    fp = dev->get(dev, path, TRUE);
144    if (fp) {
145	int i = 0, tot, pfd[2];
146	pid_t pid;
147
148	signal(SIGPIPE, catch_pipe);
149	msgNotify("Adding %s%s\nfrom %s", path, depended ? " (as a dependency)" : "", dev->name);
150	pipe(pfd);
151	pid = fork();
152	if (!pid) {
153	    dup2(pfd[0], 0); close(pfd[0]);
154	    dup2(DebugFD, 1);
155	    close(2);
156	    close(pfd[1]);
157	    i = execl("/usr/sbin/pkg_add", "/usr/sbin/pkg_add", "-", 0);
158	    if (isDebug())
159		msgDebug("pkg_add returns %d status\n", i);
160	}
161	else {
162	    char buf[BUFSIZ];
163	    WINDOW *w = savescr();
164	    struct timeval start, stop;
165
166	    close(pfd[0]);
167	    tot = 0;
168	    (void)gettimeofday(&start, (struct timezone *)0);
169
170	    while (!sigpipe_caught && (i = fread(buf, 1, BUFSIZ, fp)) > 0) {
171		int seconds;
172
173		tot += i;
174		/* Print statistics about how we're doing */
175		(void) gettimeofday(&stop, (struct timezone *)0);
176		stop.tv_sec = stop.tv_sec - start.tv_sec;
177		stop.tv_usec = stop.tv_usec - start.tv_usec;
178		if (stop.tv_usec < 0)
179		    stop.tv_sec--, stop.tv_usec += 1000000;
180		seconds = stop.tv_sec + (stop.tv_usec / 1000000.0);
181		if (!seconds)
182		    seconds = 1;
183		if (seconds != last_msg) {
184		    last_msg = seconds;
185		    msgInfo("%10d bytes read from package %s @ %4.1f KBytes/second", tot, name, (tot / seconds) / 1024.0);
186		}
187		/* Write it out */
188		if (sigpipe_caught || write(pfd[1], buf, i) != i) {
189		    msgInfo("Write failure to pkg_add!  Package may be corrupt.");
190		    break;
191		}
192	    }
193	    close(pfd[1]);
194	    fclose(fp);
195	    if (sigpipe_caught)
196		msgInfo("pkg_add(1) apparently did not like the %s package.", name);
197	    else if (i == -1)
198		msgInfo("I/O error while reading in the %s package.", name);
199	    else
200		msgInfo("Package %s read successfully - waiting for pkg_add(1)", name);
201	    refresh();
202	    i = waitpid(pid, &tot, 0);
203	    if (sigpipe_caught || i < 0 || WEXITSTATUS(tot)) {
204		ret = DITEM_FAILURE | DITEM_RESTORE;
205		if (variable_get(VAR_NO_CONFIRM))
206		    msgNotify("Add of package %s aborted, error code %d -\n"
207			      "Please check the debug screen for more info.", name, WEXITSTATUS(tot));
208		else
209		    msgConfirm("Add of package %s aborted, error code %d -\n"
210			       "Please check the debug screen for more info.", name, WEXITSTATUS(tot));
211	    }
212	    else
213		msgNotify("Package %s was added successfully", name);
214
215	    /* Now catch any stragglers */
216	    while (wait3(&tot, WNOHANG, NULL) > 0);
217
218	    sleep(1);
219	    restorescr(w);
220	    sigpipe_caught = FALSE;
221	}
222    }
223    else {
224	dialog_clear_norefresh();
225	if (variable_get(VAR_NO_CONFIRM))
226	    msgNotify("Unable to fetch package %s from selected media.\n"
227		      "No package add will be done.", name);
228	else
229	    msgConfirm("Unable to fetch package %s from selected media.\n"
230		       "No package add will be done.", name);
231	ret = DITEM_FAILURE | DITEM_RESTORE;
232    }
233    return ret;
234}
235