freebsd-skq/usr.sbin/pkg_install/add/perform.c

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#ifndef lint
static const char *rcsid = "$Id: perform.c,v 1.28 1995/08/06 03:20:01 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 add module.
*
*/
#include "lib.h"
#include "add.h"
#include <signal.h>
#include <sys/wait.h>
static int pkg_do(char *);
static int sanity_check(char *);
static char LogDir[FILENAME_MAX];
int
pkg_perform(char **pkgs)
{
int i, err_cnt = 0;
signal(SIGINT, cleanup);
signal(SIGHUP, cleanup);
if (AddMode == SLAVE)
err_cnt = pkg_do(NULL);
else {
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!
* [And subsequently made even worse.. Sigh! This code was just born
* to be hacked, I guess.. :) -jkh]
*/
static int
pkg_do(char *pkg)
{
char pkg_fullname[FILENAME_MAX];
char home[FILENAME_MAX];
char extract_contents[FILENAME_MAX];
char *where_to, *tmp;
FILE *cfile;
int code = 0;
PackingList p;
struct stat sb;
char *isTMP = NULL;
/* Reset some state */
if (Plist.head)
free_plist(&Plist);
LogDir[0] = '\0';
/* Are we coming in for a second pass, everything already extracted? */
if (AddMode == SLAVE) {
char tmp_dir[FILENAME_MAX];
fgets(tmp_dir, FILENAME_MAX, stdin);
tmp_dir[strlen(tmp_dir) - 1] = '\0'; /* pesky newline! */
if (chdir(tmp_dir) == FAIL) {
whinge("pkg_add in SLAVE mode can't chdir to %s.", tmp_dir);
return 1;
}
read_plist(&Plist, stdin);
}
/* Nope - do it now */
else {
if (!getcwd(home, FILENAME_MAX))
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upchuck("getcwd");
if (isURL(pkg)) {
char *newname = fileGetURL(pkg);
if (!newname) {
whinge("Unable to fetch `%s' by URL.", pkg);
return 1;
}
strcpy(pkg_fullname, newname);
isTMP = pkg_fullname;
}
else {
if (pkg[0] == '/') /* full pathname? */
strcpy(pkg_fullname, pkg);
else
sprintf(pkg_fullname, "%s/%s", home, pkg);
if (!fexists(pkg_fullname)) {
char *tmp = fileFindByPath(pkg);
if (!tmp) {
whinge("Can't find package `%s'.", pkg);
return 1;
}
strcpy(pkg_fullname, tmp);
}
}
if (stat(pkg_fullname, &sb) == FAIL) {
whinge("Can't stat package file '%s'.", pkg_fullname);
goto bomb;
}
Home = make_playpen(PlayPen, sb.st_size * 4);
where_to = PlayPen;
sprintf(extract_contents, "--fast-read %s", CONTENTS_FNAME);
if (unpack(pkg_fullname, extract_contents)) {
whinge("Unable to extract table of contents file from `%s' - not a package?.", pkg_fullname);
goto bomb;
}
cfile = fopen(CONTENTS_FNAME, "r");
if (!cfile) {
whinge("Unable to open table of contents file `%s' - not a package?", CONTENTS_FNAME);
goto bomb;
}
read_plist(&Plist, cfile);
fclose(cfile);
/*
* If we have a prefix, delete the first one we see and add this
* one in place of it.
*/
if (Prefix) {
delete_plist(&Plist, FALSE, PLIST_CWD, NULL);
add_plist_top(&Plist, PLIST_CWD, Prefix);
}
/* Extract directly rather than moving? Oh goodie! */
if (find_plist_option(&Plist, "extract-in-place")) {
if (Verbose)
printf("Doing in-place extraction for %s\n", pkg_fullname);
p = find_plist(&Plist, PLIST_CWD);
if (p) {
if (!isdir(p->name) && !Fake) {
if (Verbose)
printf("Desired prefix of %s does not exist, creating..\n", p->name);
vsystem("mkdir -p %s", p->name);
if (chdir(p->name)) {
whinge("Unable to change directory to `%s' - no permission?", p->name);
perror("chdir");
goto bomb;
}
}
where_to = p->name;
}
else {
whinge("No prefix specified in `%s' - this is a bad package!",
pkg_fullname);
goto bomb;
}
}
/*
* Apply a crude heuristic to see how much space the package will
* take up once it's unpacked. I've noticed that most packages
* compress an average of 75%, so multiply by 4 for good measure.
*/
if (min_free(where_to) < sb.st_size * 4) {
whinge("Projected size of %d exceeds available free space.\nPlease set your PKG_TMPDIR variable to point to a location with more\nfree space and try again.", sb.st_size * 4);
whinge("Not extracting %s\ninto %s, sorry!", pkg_fullname, where_to);
goto bomb;
}
setenv(PKG_PREFIX_VNAME,
(p = find_plist(&Plist, PLIST_CWD)) ? p->name : NULL, 1);
/* Protect against old packages with bogus @name fields */
PkgName = (p = find_plist(&Plist, PLIST_NAME)) ? p->name : "anonymous";
/* See if we're already registered */
sprintf(LogDir, "%s/%s", (tmp = getenv(PKG_DBDIR)) ? tmp : DEF_LOG_DIR,
basename_of(PkgName));
if (isdir(LogDir)) {
char tmp[FILENAME_MAX];
whinge("Package `%s' already recorded as installed.\n", PkgName);
code = 1;
goto success; /* close enough for government work */
}
/* Now check the packing list for dependencies */
for (p = Plist.head; p ; p = p->next) {
char *isTMP = NULL; /* local copy for depends only */
if (p->type != PLIST_PKGDEP)
continue;
if (Verbose)
printf("Package `%s' depends on `%s'", pkg, p->name);
if (!Fake && vsystem("pkg_info -e %s", p->name)) {
char path[FILENAME_MAX], *cp = NULL;
if (Verbose)
printf(" which is not currently loaded");
if (!isURL(p->name)) {
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snprintf(path, FILENAME_MAX, "%s/%s.tgz", Home, p->name);
if (fexists(path))
cp = path;
else
cp = fileFindByPath(p->name);
}
else {
cp = fileGetURL(p->name);
isTMP = cp;
}
if (cp) {
if (Verbose)
printf(" but was found - loading:\n");
if (!Fake && vsystem("pkg_add %s", cp)) {
whinge("Autoload of dependency `%s' failed%s",
p->name, Force ? " (proceeding anyway)" : "!");
if (!Force)
++code;
}
else if (Verbose)
printf("\t`%s' loaded successfully.\n", p->name);
/* Nuke the temporary URL copy */
if (isTMP) {
unlink(isTMP);
isTMP = NULL;
}
}
else {
if (Verbose)
printf("and was not found%s.\n",
Force ? " (proceeding anyway)" : "");
else
printf("Package dependency %s for %s not found%s\n",
p->name, pkg,
Force ? " (proceeding anyway)" : "!");
if (!Force)
++code;
}
}
else if (Verbose)
printf(" - already installed.\n");
}
/* If this is a direct extract and we didn't want it, stop now */
if (where_to != PlayPen && Fake)
goto success;
/* Finally unpack the whole mess */
if (unpack(pkg_fullname, NULL)) {
whinge("Unable to extract `%s'!", pkg_fullname);
goto bomb;
}
/* Check for sanity and dependencies */
if (sanity_check(pkg_fullname))
goto bomb;
/* If we're running in MASTER mode, just output the plist and return */
if (AddMode == MASTER) {
printf("%s\n", where_playpen());
write_plist(&Plist, stdout);
return 0;
}
}
/* Look for the requirements file */
if (fexists(REQUIRE_FNAME)) {
vsystem("chmod +x %s", REQUIRE_FNAME); /* be sure */
if (Verbose)
printf("Running requirements file first for %s..\n", PkgName);
if (!Fake && vsystem("./%s %s INSTALL", REQUIRE_FNAME, PkgName)) {
whinge("Package %s fails requirements %s",
pkg_fullname,
Force ? "installing anyway" : "- not installed.");
if (!Force) {
code = 1;
goto success; /* close enough for government work */
}
}
}
/* If we're really installing, and have an installation file, run it */
if (!NoInstall && fexists(INSTALL_FNAME)) {
vsystem("chmod +x %s", INSTALL_FNAME); /* make sure */
if (Verbose)
printf("Running install with PRE-INSTALL for %s..\n", PkgName);
if (!Fake && vsystem("./%s %s PRE-INSTALL", INSTALL_FNAME, PkgName)) {
whinge("Install script returned error status.");
unlink(INSTALL_FNAME);
code = 1;
goto success; /* nothing to uninstall yet */
}
}
/* Now finally extract the entire show if we're not going direct */
if (where_to == PlayPen && !Fake)
extract_plist(home, &Plist);
if (!Fake && fexists(MTREE_FNAME)) {
if (Verbose)
printf("Running mtree for %s..\n", PkgName);
p = find_plist(&Plist, PLIST_CWD);
if (Verbose)
printf("mtree -U -f %s -d -e -p %s\n", MTREE_FNAME,
p ? p->name : "/");
if (!Fake) {
if (vsystem("/usr/sbin/mtree -U -f %s -d -e -p %s",
MTREE_FNAME, p ? p->name : "/"))
whinge("mtree returned a non-zero status - continuing.");
}
unlink(MTREE_FNAME);
}
/* Run the installation script one last time? */
if (!NoInstall && fexists(INSTALL_FNAME)) {
if (Verbose)
printf("Running install with POST-INSTALL for %s..\n", PkgName);
if (!Fake && vsystem("./%s %s POST-INSTALL", INSTALL_FNAME, PkgName)) {
whinge("Install script returned error status.");
unlink(INSTALL_FNAME);
code = 1;
goto fail;
}
unlink(INSTALL_FNAME);
}
/* Time to record the deed? */
if (!NoRecord && !Fake) {
char contents[FILENAME_MAX];
FILE *cfile;
umask(022);
if (getuid() != 0)
whinge("Not running as root - trying to record install anyway.");
if (!PkgName) {
whinge("No package name! Can't record package, sorry.");
code = 1;
goto success; /* well, partial anyway */
}
sprintf(LogDir, "%s/%s",
(tmp = getenv(PKG_DBDIR)) ? tmp : DEF_LOG_DIR,
basename_of(PkgName));
if (Verbose)
printf("Attempting to record package into %s..\n", LogDir);
if (make_hierarchy(LogDir)) {
whinge("Can't record package into '%s', you're on your own!",
LogDir);
bzero(LogDir, FILENAME_MAX);
code = 1;
goto success; /* close enough for government work */
}
/* Make sure pkg_info can read the entry */
vsystem("chmod a+rx %s", LogDir);
if (fexists(DEINSTALL_FNAME))
move_file(".", DEINSTALL_FNAME, LogDir);
if (fexists(REQUIRE_FNAME))
move_file(".", REQUIRE_FNAME, LogDir);
sprintf(contents, "%s/%s", LogDir, CONTENTS_FNAME);
cfile = fopen(contents, "w");
if (!cfile) {
whinge("Can't open new contents file '%s'! Can't register pkg.",
contents);
goto success; /* can't log, but still keep pkg */
}
write_plist(&Plist, cfile);
fclose(cfile);
move_file(".", DESC_FNAME, LogDir);
move_file(".", COMMENT_FNAME, LogDir);
if (fexists(DISPLAY_FNAME))
move_file(".", DISPLAY_FNAME, LogDir);
for (p = Plist.head; p ; p = p->next) {
if (p->type != PLIST_PKGDEP)
continue;
if (Verbose)
printf("Attempting to record dependency on package `%s'\n",
p->name);
sprintf(contents, "%s/%s/%s",
(tmp = getenv(PKG_DBDIR)) ? tmp : DEF_LOG_DIR,
basename_of(p->name), REQUIRED_BY_FNAME);
cfile = fopen(contents, "a");
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if (!cfile)
whinge("Warning: Can't open dependency file '%s'!\n\tDependency registration is incomplete.", contents);
else {
fprintf(cfile, "%s\n", basename_of(PkgName));
if (fclose(cfile) == EOF)
warn("Cannot properly close file %s", contents);
}
}
if (Verbose)
printf("Package %s registered in %s\n", PkgName, LogDir);
}
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if (p = find_plist(&Plist, PLIST_DISPLAY)) {
FILE *fp;
char buf[BUFSIZ];
fp = fopen(p->name, "r");
if (fp) {
putc('\n', stdout);
while (fgets(buf, sizeof(buf), fp))
fputs(buf, stdout);
putc('\n', stdout);
(void) fclose(fp);
} else
warn("Cannot open display file `%s'.", p->name);
}
goto success;
bomb:
code = 1;
goto success;
fail:
/* Nuke the whole (installed) show, XXX but don't clean directories */
if (!Fake)
delete_package(FALSE, FALSE, &Plist);
success:
/* delete the packing list contents */
leave_playpen();
if (isTMP)
unlink(isTMP);
return code;
}
static int
sanity_check(char *pkg)
{
PackingList p;
int code = 0;
if (!fexists(CONTENTS_FNAME)) {
whinge("Package %s has no CONTENTS file!", pkg);
code = 1;
}
else if (!fexists(COMMENT_FNAME)) {
whinge("Package %s has no COMMENT file!", pkg);
code = 1;
}
else if (!fexists(DESC_FNAME)) {
whinge("Package %s has no DESC file!", pkg);
code = 1;
}
return code;
}
void
cleanup(int signo)
{
if (signo)
printf("Signal %d received, cleaning up..\n", signo);
if (Plist.head) {
if (!Fake)
delete_package(FALSE, FALSE, &Plist);
free_plist(&Plist);
}
if (!Fake && LogDir[0])
vsystem("%s -rf %s", REMOVE_CMD, LogDir);
leave_playpen();
}