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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
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TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
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Appendix: How to Apply These Terms to Your New Programs
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<one line to give the program's name and a brief idea of what it does.>
Copyright (C) 19yy <name of author>
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Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
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Gnomovision version 69, Copyright (C) 19yy name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
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The hypothetical commands `show w' and `show c' should show the appropriate
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You should also get your employer (if you work as a programmer) or your
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Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Library General
Public License instead of this License.

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VERSION DESCRIPTION
------------------------------------------------------------------
- Changed db_find_conflicts() to ignore directories
1.0 - Initial Release

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#
# pacman
#
# Copyright (c) 2002 by Judd Vinet <jvinet@zeroflux.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
# USA.
#
# NOTE: Since pacman is compiled statically, you will need the static
# libraries for zlib and glibc.
DESTDIR =
BINDIR = /usr/bin
MANDIR = /usr/man
ETCDIR = /etc
VERSION = 1.0
LIBTAR_VERSION = 1.2.4
CXX = gcc
CXXFLAGS += -DNDEBUG -O2 -Wall -pedantic -fno-exceptions -fno-rtti \
-D_GNU_SOURCE -DVERSION=\"$(VERSION)\" -Ilibtar-$(LIBTAR_VERSION)/lib
LDFLAGS += -static -Llibtar-$(LIBTAR_VERSION)/lib -ltar -lz
OBJECTS = pacman.o
all: libtar pacman man
pacman: $(OBJECTS)
$(CXX) $(OBJECTS) -o $@ $(LDFLAGS)
pacman.o: pacman.c pacman.h
$(CXX) $(CXXFLAGS) -c pacman.c
man: pacman.8
%: %.in
sed -e "s/#VERSION#/$(VERSION)/" $< > $@
dist: distclean
(cd ..; tar czvf pacman-$(VERSION).tar.gz pacman-$(VERSION))
libtar:
(tar xzf libtar-$(LIBTAR_VERSION).tar.gz; \
cd libtar-$(LIBTAR_VERSION); \
LDFLAGS="" ./configure --disable-encap --disable-encap-install; \
make;)
install: all
install -D -m0755 pacman $(DESTDIR)$(BINDIR)/pacman
install -D -m0644 pacman.8 $(DESTDIR)$(MANDIR)/man8/pacman.8
install -D -m0755 makepkg $(DESTDIR)$(BINDIR)/makepkg
install -D -m0755 makeworld $(DESTDIR)$(BINDIR)/makeworld
@echo ""
@echo "*** If this is a first-time install, you should copy makepkg.conf"
@echo "*** to /etc now."
@echo ""
clean:
rm -f *~ *.o *.8
distclean: clean
rm -f pacman
rm -rf libtar-$(LIBTAR_VERSION)
# End of file

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pacman - Package Management Utility
by Judd Vinet <jvinet@zeroflux.org>
DESCRIPTION:
------------
pacman is a utility which manages software packages in Linux. It uses
simple .tar.gz files as a package format, and maintains a text-based
package database, just in case some hand tweaking is necessary.
pacman does not strive to "do everything." It will add, remove and
upgrade packages in the system, and it will allow you to query the
package database for installed packages, files and owners.
Plans exist for dependency checking and remote file fetching, as well.
See TODO for more info.
INSTALL:
--------
$ make install
or
$ make DESTDIR=/your/path/here install
If your man files are located in a directory other than /usr/man, you may
want to edit Makefile and modify the MANDIR line accordingly.
Note: Since pacman is compiled statically, you will need the static libraries
for glibc and zlib.
BUGS:
-----
If you find bugs (which is quite likely at version 1.0), please submit
them to <jvinet@zeroflux.org> with specific information, such as your
commandline, the nature of the bug, and even the package database, if
it helps.
COPYRIGHT:
----------
pacman is Copyright (c) 2002 Judd vinet <jvinet@zeroflux.org> and is
licensed through the GNU General Public License (see COPYING).
pacman uses "libtar", a library for reading/writing tar-files. This
library is Copyright (c) 1998-2001 Mark D. Roth <roth@uiuc.edu> (see
libtar-X.X.X/COPYRIGHT for further details).

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These are things that should get done at some point. Some are simple,
others are more complex and could be a while in development.
- add a [sibling] option to .PKGINFO -- used when only one of
the siblings can be installed at a time (eg, bsdinit,sysvinit)
- handle wildcards on the command line
- sort packages by package name in pacman.db
- manage conditional file installs (ie, 'info' pages)
- make sure program consistently returns a non-zero return code on
error, so scripts can rely on it
- maybe add a 'confirm every action' option for doing paranoid installs
- add better directory tracking
- use crux's pkgmk technique. $(make prefix=$PKG/usr install) then just
$(cd $PKG; tar czf $pkg.tar.gz *)
- add a consistency check operation
- change char[xxx] to char[PATH_MAX]
- add file locking to db
- add a --dbpath option
- dependency checking
- fetch files via ftp
- need to manage foreign package lists like apt
- handle .save files better (for more than just .conf files)
- upgrade currently does a double db backup; not really desirable

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#!/bin/bash
if [ "$1" = "" ]; then
echo "usage: $0 <pkg_directory>"
echo ""
echo "call this while in the root of the install tree and"
echo "pass it the path of the directory containing packages"
echo "to be installed"
echo ""
exit
fi
echo "Initializing pacman database..."
mkdir -p var/lib/pacman && touch var/lib/pacman/pacman.db
for pkg in `find $1/*`; do
echo "==> $pkg" >>install.log
echo "==> $pkg"
pacman -A -r . $pkg 2>&1 >>install.log
done
echo "Syncing..."
sync
echo "Done."

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#!/bin/bash
me=`basename $0`
myver='1.0'
startdir=`pwd`
[ -f /etc/makepkg.conf ] && . /etc/makepkg.conf
strip_url() {
echo $1 | sed 's|^.*://.*/||g'
}
if [ ! -f $startdir/PKGBUILD ]; then
echo "error: $startdir/PKGBUILD does not exist!"
exit
fi
. $startdir/PKGBUILD
# extract source
echo "==> Acquiring/Extracting Sources..."
mkdir -p src pkg
cd $startdir/src
for netfile in ${source[@]}; do
file=`strip_url $netfile`
if [ -f ../$file ]; then
echo "==> Found $file in build dir"
cp ../$file .
elif [ -f /var/cache/pkg/$file ]; then
echo "==> Using local copy of $file"
cp /var/cache/pkg/$file .
else
echo "==> Downloading $file"
wget --passive-ftp --no-directories --tries=3 --waitretry=3 $netfile
if [ ! -f $file ]; then
echo "==> ERROR: Failed to download $file"
echo "==> Aborting..."
exit 1
fi
mkdir -p /var/cache/pkg && cp $file /var/cache/pkg
fi
case $file in
*.tar.gz|*.tar.Z|*.tgz)
cmd="tar --use-compress-program=gzip -xf $file" ;;
*.tar.bz2)
cmd="tar --use-compress-program=bzip2 -xf $file" ;;
*.zip)
cmd="unzip -qq $file" ;;
*)
cmd="cp ../$file ." ;;
esac
echo "$cmd"
$cmd
done
# build
echo "==> Building Package..."
build
# write the .PKGINFO file
echo "==> Generating .PKGINFO file..."
cd $startdir/pkg
echo "# Generated by makepkg $myver" >.PKGINFO
echo -n "# " >>.PKGINFO
date >>.PKGINFO
echo "pkgname = $pkgname" >>.PKGINFO
echo "pkgver = $pkgver-$pkgrel" >>.PKGINFO
# remove info files
cd $startdir
rm -rf pkg/usr/info pkg/usr/share/info
# strip binaries
cd $startdir
echo "==> Stripping debugging symbols from libraries..."
find pkg/{,usr,usr/local}/lib -type f \
-exec /usr/bin/strip --strip-debug '{}' ';'
echo "==> Stripping symbols from binaries..."
find pkg/{,usr,usr/local}/{bin,sbin} -type f \
-exec /usr/bin/strip '{}' ';'
# tar it up
echo "==> Compressing package..."
cd $startdir/pkg
tar czvf $startdir/$pkgname-$pkgver-$pkgrel.pkg.tar.gz .PKGINFO * >../filelist
cd $startdir
echo "==> Finished";

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#
# /etc/pkgmake.conf
#
export CFLAGS="-O2 -march=i686 -pipe"
export CXXFLAGS="-O2 -march=i686 -pipe"
# End of file

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#!/bin/bash
toplevel=`pwd`
if [ $# -lt 1 ]; then
echo "usage: $0 <destdir>"
exit 1
fi
for port in `find $toplevel -type d -maxdepth 1 -mindepth 1 | sort`; do
cd $port
if [ -f PKGBUILD ]; then
. PKGBUILD
donebuild=0
if [ ! -f $1/$pkgname-$pkgver-$pkgrel.pkg.tar.gz ]; then
makepkg
rm -rf pkg src
mv -v $pkgname-$pkgver-$pkgrel.pkg.tar.gz $1/
donebuild=1
fi
d=`date +"[%b %d %H:%M]"`
echo -n "$d " >>$toplevel/build.log
if [ $donebuild = 1 ]; then
echo "$pkgname was built successfully" >>$toplevel/build.log
else
echo "$pkgname already built -- skipping" >>$toplevel/build.log
fi
fi
done

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.TH pacman 8 "Feb 10, 2002" "pacman #VERSION#" ""
.SH NAME
pacman \- package manager utility
.SH SYNOPSIS
\fBpacman <operation> [options] <package>\fP
.SH DESCRIPTION
\fBpacman\fP is a \fIpackage management\fP utility. Package
information is maintained in a basic text format for easy
tweaking, if necessary, and packages are in a standard
\fIgzipped tar\fP format.
.SH OPERATIONS
.TP
.B "\-A, \-\-add"
Add a package to the system. Package will be uncompressed
into the installation root and the database will be updated.
.TP
.B "\-R, \-\-remove"
Remove a package from the system. Files belonging to the
specified package will be deleted, and the database will
be updated. Note that files with \fI.conf\fP extensions will
be renamed with \fI.conf.save\fP extensions.
.TP
.B "\-U, \-\-upgrade"
Upgrade a package. This is essentially a "remove-then-install"
process. Files with \fI.conf\fP extensions will be saved.
.TP
.B "\-Q, \-\-query"
Query the package database. This operation allows you to
view installed packages and their files. See \fBQUERY OPTIONS\fP
below.
.TP
.B "\-V, \-\-version"
Display version and exit.
.TP
.B "\-h, \-\-help"
Display syntax for the given operation. If no operation was
supplied, then the general syntax is shown.
.SH QUERY OPTIONS
.TP
.B "\-o, \-\-owns <file>"
Output the name of the package that owns <file>.
.TP
.B "\-l, \-\-list"
Instead of outputting the package name, output the list of
files owned by the package.
.TP
.B "\-i, \-\-info"
Output the .PKGINFO file contained in <package>. This option
can only be used with the \fB-p\fP option.
.SH OPTIONS
.TP
.B "\-v, \-\-verbose"
Output more status and error messages.
.TP
.B "\-f, \-\-force"
Force installation, overwriting conflicting files. If the package
that is about to be installed contains files that are already
installed this option will cause all those files to be overwritten.
This option should be used with care, preferably not at all.
.TP
.B "\-r, \-\-root <path>"
Specify alternative installation root (default is "/"). This
should \fInot\fP be used as a way to install software into
e.g. /usr/local instead of /usr. Instead this should be used
if you want to install a package on a temporary mounted partition,
which is "owned" by another system. By using this option you not only
specify where the software should be installed, but you also
specify which package database to use.
.SH AUTHOR
.nf
Judd Vinet <jvinet@zeroflux.org>
.fi

980
pacman.c Normal file
View file

@ -0,0 +1,980 @@
/**
* pacman
*
* Copyright (c) 2002 by Judd Vinet <jvinet@zeroflux.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
#include "pacman.h"
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <limits.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <libtar.h>
#include <zlib.h>
/* borrowed and modifed from Per Liden's pkgutils (http://crux.nu) */
static int gzopen_frontend(char *pathname, int oflags, int mode)
{
char* gzoflags;
int fd;
gzFile gzf;
switch (oflags & O_ACCMODE) {
case O_WRONLY:
gzoflags = "w";
break;
case O_RDONLY:
gzoflags = "r";
break;
case O_RDWR:
default:
errno = EINVAL;
return -1;
}
if((fd = open(pathname, oflags, mode)) == -1) {
return -1;
}
if((oflags & O_CREAT) && fchmod(fd, mode)) {
return -1;
}
if(!(gzf = gzdopen(fd, gzoflags))) {
errno = ENOMEM;
return -1;
}
return (int)gzf;
}
static tartype_t gztype = {
(openfunc_t) gzopen_frontend,
(closefunc_t)gzclose,
(readfunc_t) gzread,
(writefunc_t)gzwrite
};
/*
* GLOBALS
*
*/
FILE* dbfp = NULL;
char* dbpath = PKGDB;
char* pkgname = NULL;
char* pkgver = NULL;
char* pmo_root = NULL;
unsigned short pmo_verbose = 0;
unsigned short pmo_force = 0;
unsigned short pmo_upgrade = 0;
unsigned short pmo_nosave = 0;
unsigned short pmo_nofunc = 0;
unsigned short pmo_q_isfile = 0;
unsigned short pmo_q_info = 0;
unsigned short pmo_q_list = 0;
char* pmo_q_owns = NULL;
pkginfo_t** packages = NULL;
unsigned int pkgcount = 0;
int main(int argc, char* argv[])
{
pm_opfunc_t op_func;
char* funcvar = NULL;
int ret = 0;
/* default root */
pmo_root = (char*)malloc(2);
strcpy(pmo_root, "/");
if(argc < 2) {
usage(PM_MAIN, (char*)basename(argv[0]));
return(0);
}
/* determine the requested operation and pass off to */
/* the handler function */
if(!strcmp(argv[1], "-A") || !strcmp(argv[1], "--add")) {
op_func = pacman_add;
funcvar = parseargs(PM_ADD, argc, argv);
} else if(!strcmp(argv[1], "-R") || !strcmp(argv[1], "--remove")) {
op_func = pacman_remove;
funcvar = parseargs(PM_REMOVE, argc, argv);
} else if(!strcmp(argv[1], "-Q") || !strcmp(argv[1], "--query")) {
op_func = pacman_query;
funcvar = parseargs(PM_QUERY, argc, argv);
} else if(!strcmp(argv[1], "-U") || !strcmp(argv[1], "--upgrade")) {
op_func = pacman_upgrade;
funcvar = parseargs(PM_UPGRADE, argc, argv);
} else if(!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) {
usage(PM_MAIN, (char*)basename(argv[0]));
return(1);
} else if(!strcmp(argv[1], "-V") || !strcmp(argv[1], "--version")) {
version();
return(1);
} else {
printf("error: invalid operation\n\n");
usage(PM_MAIN, (char*)basename(argv[0]));
return(1);
}
if(funcvar == NULL && op_func != pacman_query) {
return(1);
}
vprint("Installation Root: %s\n", pmo_root);
vprint("Package Name: %s\n", funcvar);
/* check for db existence */
if(pmo_root != NULL) {
/* trim the trailing '/' if there is one */
if((int)rindex(pmo_root, '/') == ((int)pmo_root)+strlen(pmo_root)-1) {
pmo_root[strlen(pmo_root)-1] = '\0';
}
free(dbpath);
dbpath = (char*)malloc(strlen(pmo_root) + strlen(PKGDB) + 1);
strcpy(dbpath, pmo_root);
dbpath = (char*)strcat(dbpath, PKGDB);
}
vprint("Using package DB: %s\n", dbpath);
ret = db_open(dbpath);
if(ret == 1) {
printf("error: Could not open package database file!\n");
printf(" Check to see that %s exists.\n", dbpath);
printf(" If not, you may simply create it by \"touch\"-ing it.\n");
return(1);
}
if(ret == 2) {
printf("error: Database is corrupt! You may need to use the backup database.\n");
printf(" I hope you like tweaking... ;-)\n");
return(1);
}
/* start the requested operation */
if(!pmo_nofunc) {
ret = op_func(funcvar);
if(ret) {
printf("There were errors\n");
}
}
fclose(dbfp);
return(0);
}
int pacman_add(char* pkgfile)
{
int i, errors = 0;
TAR* tar;
char* errmsg = NULL;
char* expath = NULL;
char* newpath = NULL;
fileset_t files = NULL;
unsigned int filecount = 0;
struct stat buf;
/* Populate the file list */
filecount = load_pkg(pkgfile, &files, 0);
if(filecount == 0) {
return(1);
}
/* Now check for conflicts in the db */
vprint("Looking for DB conflicts...\n");
if((i = db_find_conflicts(files, filecount)) == 1) {
if(pmo_force) {
printf("\nInstalling package anyway...\n");
printf(" You might have duplicate entries in your package\n");
printf(" database now. You may want to edit it and remove\n");
printf(" one of the copies.\n\n");
} else {
printf("Aborting...\n");
printf(" (use -f to override)\n\n");
return(1);
}
} else if(i == 2) {
return(1);
} else {
vprint("No DB conflicts found\n");
}
/* see if this is an upgrade. if so, remove the old package first */
if(pmo_upgrade) {
vprint("Removing old package first...\n");
if(pacman_remove(pkgname)) {
printf("\nUpgrade aborted.\n");
return(1);
}
}
/* open the .tar.gz package */
if(tar_open(&tar, pkgfile, &gztype, O_RDONLY, 0, TAR_GNU) == -1) {
perror("could not open package");
return(1);
}
vprint("Extracting files...\n");
for(i = 0; !th_read(tar); i++) {
if(!strcmp(th_get_pathname(tar), ".PKGINFO")) {
tar_skip_regfile(tar);
continue;
}
/* build the new pathname relative to pmo_root */
expath = (char*)malloc(strlen(th_get_pathname(tar))+strlen(pmo_root)+2);
strcpy(expath, pmo_root);
strcat(expath, "/");
strcat(expath, th_get_pathname(tar));
vprint(" %s\n", expath);
if(!stat(expath, &buf)) {
/* if the file ends in .conf, back it up */
if(!strcmp((char*)(expath+strlen(expath)-5), ".conf")) {
newpath = (char*)realloc(newpath, strlen(expath)+6);
strcpy(newpath, expath);
strcat(newpath, ".save");
rename(expath, newpath);
printf("%s renamed to %s\n", expath, newpath);
}
}
if(tar_extract_file(tar, expath)) {
errmsg = strerror(errno);
printf("could not extract %s: %s\n", th_get_pathname(tar), errmsg);
errors = 1;
}
free(expath);
}
tar_close(tar);
vprint("Done.\n");
if(errors) {
printf("There were errors. No database update was performed.\n");
} else {
vprint("Updating database...\n");
if(db_update(files, filecount)) {
printf("error: Could not update database! The database may not\n");
printf(" be in a sane state!\n");
return(1);
}
vprint("Done.\n");
}
return(0);
}
int pacman_remove(char* pkgfile)
{
int found = 0, done = 0;
int i;
char line[255];
fileset_t files = NULL;
unsigned int filecount = 0;
struct stat buf;
char* newpath = NULL;
if(pkgfile == NULL) {
return(0);
}
/* find the package's filelist in the db */
rewind(dbfp);
while(!found && !feof(dbfp)) {
fgets(line, 255, dbfp);
strcpy(line, trim(line));
if(!strcmp(line, pkgfile)) {
/* read the version */
fgets(line, 255, dbfp);
found = 1;
}
}
if(!found) {
printf("Cannot remove %s: Package was not found.\n", pkgfile);
return(1);
}
while(!done) {
fgets(line, 255, dbfp);
strcpy(line, trim(line));
if(strlen(line)) {
/* add the path to the list */
files = (fileset_t)realloc(files, (++filecount) * sizeof(char*));
files[filecount-1] = (char*)malloc(strlen(line)+1);
strcpy(files[filecount-1], line);
} else {
done = 1;
}
}
/* iterate through the list backwards, unlinking files */
for(i = filecount-1; i >= 0; i--) {
if(lstat(files[i], &buf)) {
vprint("file %s does not exist\n", files[i]);
continue;
}
if(S_ISDIR(buf.st_mode)) {
vprint(" removing directory %s\n", files[i]);
if(rmdir(files[i])) {
/* this is okay, other packages are probably using it. */
/* perror("cannot remove directory"); */
}
} else {
/* if the file ends in .conf, back it up */
if(!pmo_nosave && !strcmp((char*)(files[i]+strlen(files[i])-5), ".conf")) {
newpath = (char*)realloc(newpath, strlen(files[i])+6);
strcpy(newpath, files[i]);
strcat(newpath, ".save");
rename(files[i], newpath);
printf("%s renamed to %s\n", files[i], newpath);
} else {
vprint(" unlinking %s\n", files[i]);
if(unlink(files[i])) {
perror("cannot remove file");
}
}
}
}
/* now splice this name out of the packages list */
found = 0;
for(i = 0; i < pkgcount-1; i++) {
if(found) {
packages[i] = packages[i+1];
} else {
if(!strcmp(packages[i]->name, pkgfile)) {
found = 1;
if(i < pkgcount-1) {
packages[i] = packages[i+1];
}
}
}
}
/* drop the last item */
packages = (pkginfo_t**)realloc(packages, (--pkgcount)*sizeof(pkginfo_t*));
/* and commit the db */
return(db_update(NULL, 0));
}
int pacman_query(char* pkgfile)
{
char *str = NULL;
char name[255];
char ver[255];
char line[255];
int found = 0;
int done = 0;
int i;
unsigned int filecount = 0;
fileset_t files = NULL;
/* output info for a .tar.gz package */
if(pmo_q_isfile) {
filecount = load_pkg(pkgfile, &files, pmo_q_info);
if(pmo_q_list) {
for(i = 0; i < filecount; i++) {
if(strcmp(files[i], ".PKGINFO")) {
printf("%s\n", files[i]);
}
}
} else {
printf("%s %s\n", pkgname, pkgver);
}
return(0);
}
/* determine the owner of a file */
if(pmo_q_owns != NULL) {
rewind(dbfp);
while(!found && !feof(dbfp)) {
fgets(name, 255, dbfp);
strcpy(name, trim(name));
fgets(ver, 255, dbfp);
strcpy(ver, trim(ver));
strcpy(line, " ");
while(strlen(line) && !feof(dbfp)) {
fgets(line, 255, dbfp);
strcpy(line, trim(line));
str = line;
str += strlen(pmo_root);
if(!strcmp(line, pmo_q_owns)) {
printf("%s %s\n", name, ver);
return(0);
}
}
}
printf("No package owns this file.\n");
return(0);
}
/* find packages in the db */
rewind(dbfp);
while(!done) {
found = 0;
while(!found && !feof(dbfp)) {
fgets(name, 255, dbfp);
strcpy(name, trim(name));
if(pkgfile == NULL || (pkgfile != NULL && !strcmp(name, pkgfile))) {
/* read the version */
fgets(ver, 255, dbfp);
strcpy(ver, trim(ver));
found = 1;
if(pkgfile != NULL) {
done = 1;
}
}
}
if(feof(dbfp)) {
if(pkgfile != NULL && !found) {
printf("Package was not found in database.\n");
}
break;
}
found = 0;
while(!found) {
fgets(line, 255, dbfp);
strcpy(line, trim(line));
if(strlen(line)) {
if(pmo_q_list) {
printf("%s%s\n", pmo_root, line);
}
} else {
found = 1;
}
}
if(!pmo_q_list) {
printf("%s %s\n", name, ver);
}
if(feof(dbfp)) {
done = 1;
}
}
return(0);
}
int pacman_upgrade(char* pkgfile)
{
/* this is basically just a remove,add process. pacman_add() will */
/* handle it */
pmo_upgrade = 1;
pacman_add(pkgfile);
return(0);
}
/*
* Populate the package file list
* pkgfile: filename of package
* listptr: this will be set to the new fileset_t
*
* Returns: the number of filenames read in the package, or 0 on error
*
*/
int load_pkg(char* pkgfile, fileset_t* listptr, unsigned short output)
{
char* expath;
char* descfile;
int i;
TAR* tar;
unsigned int filecount = 0;
fileset_t files = NULL;
descfile = (char*)malloc(strlen("/tmp/pacman_XXXXXX")+1);
strcpy(descfile, "/tmp/pacman_XXXXXX");
if(tar_open(&tar, pkgfile, &gztype, O_RDONLY, 0, TAR_GNU) == -1) {
perror("could not open package");
return(0);
}
vprint("Loading filelist from package...\n");
for(i = 0; !th_read(tar); i++) {
if(!strcmp(th_get_pathname(tar), ".PKGINFO")) {
/* extract this file into /tmp. it has info for us */
vprint("Found package description file.\n");
mkstemp(descfile);
tar_extract_file(tar, descfile);
parse_descfile(descfile, output);
continue;
}
/* build the new pathname relative to pmo_root */
expath = (char*)malloc(strlen(th_get_pathname(tar))+strlen(pmo_root)+2);
strcpy(expath, pmo_root);
strcat(expath, "/");
strcat(expath, th_get_pathname(tar));
/* add the path to the list */
files = (fileset_t)realloc(files, (++filecount) * sizeof(char*));
files[filecount-1] = expath;
if(TH_ISREG(tar) && tar_skip_regfile(tar)) {
perror("bad package file");
return(0);
}
expath = NULL;
}
tar_close(tar);
if(pkgname == NULL || pkgver == NULL) {
printf("The current version of Pacman requires a .PKGINFO file\n");
printf("present in the .tar.gz archive. This package does not\n");
printf("have one.\n");
return(0);
}
(*listptr) = files;
return(filecount);
}
/* Open the database file
* path: the full pathname of the file
*/
int db_open(char* path)
{
char line[255];
pkginfo_t* info;
dbfp = fopen(path, "r");
if(dbfp == NULL) {
return(1);
}
while(!feof(dbfp)) {
info = (pkginfo_t*)malloc(sizeof(pkginfo_t));
fgets(line, 64, dbfp);
if(feof(dbfp)) {
break;
}
strcpy(info->name, trim(line));
fgets(line, 32, dbfp);
strcpy(info->version, trim(line));
/* add to the collective */
packages = (pkginfo_t**)realloc(packages, (++pkgcount) * sizeof(pkginfo_t*));
packages[pkgcount-1] = info;
for(;;) {
fgets(line, 255, dbfp);
if(feof(dbfp)) {
return(2);
}
if(strlen(trim(line)) == 0) {
break;
}
}
}
return(0);
}
/* Copy the old database file to a backup and build the
* new copy in its place.
* files: list of files in the new package, can be null
* filecount: number of entries in files
*
* Returns: 0 on success
*
*/
int db_update(fileset_t files, unsigned int filecount)
{
FILE* olddb;
char* newpath = NULL;
char* str = NULL;
char name[64];
char ver[32];
char line[255];
int i = 0, found = 0, done = 0;
/* build the backup pathname */
newpath = (char*)malloc(strlen(dbpath)+5);
strcpy(newpath, dbpath);
strcat(newpath, ".bak");
/* rename the existing db */
fclose(dbfp);
rename(dbpath, newpath);
olddb = fopen(newpath, "r");
free(newpath);
dbfp = fopen(dbpath, "w");
if(olddb == NULL || dbfp == NULL) {
return(1);
}
rewind(olddb);
while(!feof(olddb)) {
if(!fgets(name, 64, olddb)) {
break;
}
strcpy(name, trim(name));
fgets(ver, 32, olddb);
found = 0;
for(i = 0; i < pkgcount && !found; i++) {
if(!strcmp(packages[i]->name, name)) {
/* it's there... copy the entries over */
found = 1;
fputs(name, dbfp);
fputc('\n', dbfp);
fputs(ver, dbfp);
for(done = 0; !done;) {
fgets(line, 255, olddb);
if(found) {
fputs(line, dbfp);
}
if(strlen(trim(line)) == 0 || feof(olddb)) {
done = 1;
}
}
}
}
if(!found) {
/* skip through filelist for this package */
for(done = 0; !done;) {
fgets(line, 255, olddb);
if(strlen(trim(line)) == 0 || feof(olddb)) {
done = 1;
}
}
}
}
fclose(olddb);
/* write the current info */
if(files != NULL) {
fputs(pkgname, dbfp);
fputc('\n', dbfp);
fputs(pkgver, dbfp);
fputc('\n', dbfp);
for(i = 0; i < filecount; i++) {
str = files[i];
str += strlen(pmo_root);
fputs(str, dbfp);
fputc('\n', dbfp);
}
fputs("\n", dbfp);
}
fclose(dbfp);
db_open(dbpath);
return(0);
}
/* Check the database for conflicts
* files: list of files in the new package
* filecount: number of entries in files
*
* Returns: 0 if no conflicts were found, 1 otherwise
*
*/
int db_find_conflicts(fileset_t files, unsigned int filecount)
{
int i;
char line[255];
char name[255];
struct stat buf;
int conflicts = 0;
/* CHECK 1: checking db conflicts */
rewind(dbfp);
while(!feof(dbfp)) {
fgets(name, 255, dbfp);
strcpy(name, trim(name));
if(!pmo_upgrade && !strcmp(name, pkgname)) {
printf("error: This package is already installed.\n");
printf(" Maybe you should be using --upgrade.\n");
return(2);
}
fgets(line, 255, dbfp);
while(!feof(dbfp)) {
fgets(line, 255, dbfp);
strcpy(line, trim(line));
if(!strlen(line)) {
break;
}
if(index(line, '/') == (char*)line && (!pmo_upgrade || strcmp(name,pkgname))) {
for(i = 0; i < filecount; i++) {
if(!strcmp(line, files[i])) {
if(rindex(files[i], '/') == files[i]+strlen(files[i])-1) {
/* this filename has a trailing '/', so it's a directory -- skip it. */
continue;
}
printf("conflict: %s already exists in package \"%s\"\n", line, name);
conflicts = 1;
}
}
}
}
}
/* CHECK 2: checking filesystem conflicts */
/* TODO: run filesystem checks for upgrades */
for(i = 0; i < filecount && !pmo_upgrade; i++) {
if(!stat(files[i], &buf) && !S_ISDIR(buf.st_mode)) {
printf("conflict: %s already exists in filesystem\n", files[i]);
conflicts = 1;
}
}
return(conflicts);
}
/* Parses the package description file for the current package
* descfile: the full pathname of the description file
*
* Returns: 0 on success, 1 on error
*
*/
int parse_descfile(char* descfile, unsigned short output)
{
FILE* fp;
char line[255];
char* ptr = NULL;
char* key = NULL;
int linenum = 0;
if((fp = fopen(descfile, "r")) == NULL) {
perror(descfile);
return(1);
}
while(!feof(fp)) {
fgets(line, 255, fp);
if(output) {
printf("%s", line);
}
linenum++;
strcpy(line, trim(line));
if(index(line, '#') == (char*)line) {
continue;
}
if(strlen(line) == 0) {
continue;
}
ptr = line;
key = strsep(&ptr, "=");
if(key == NULL || ptr == NULL) {
printf("Syntax error in description file line %d\n", linenum);
} else {
key = trim(key);
key = strtoupper(key);
ptr = trim(ptr);
if(!strcmp(key, "PKGNAME")) {
pkgname = (char*)malloc(strlen(ptr)+1);
strcpy(pkgname, ptr);
} else if(!strcmp(key, "PKGVER")) {
pkgver = (char*)malloc(strlen(ptr)+1);
strcpy(pkgver, ptr);
} else if(!strcmp(key, "PKGDESC")) {
/* Not used yet */
} else {
printf("Syntax error in description file line %d\n", linenum);
}
}
line[0] = '\0';
}
fclose(fp);
unlink(descfile);
return(0);
}
/* Parse command-line arguments for each operation
* op: the operation code requested
* argc: argc
* argv: argv
*
* Returns: the functional variable for that operation
* (eg, the package file name for PM_ADD)
*/
char* parseargs(int op, int argc, char** argv)
{
char* pkg = NULL;
int i;
for(i = 2; i < argc; i++) {
if(!strcmp(argv[i], "-h") || !strcmp(argv[i], "--help")) {
pmo_nofunc = 1;
usage(op, (char*)basename(argv[0]));
return(NULL);
} else if(!strcmp(argv[i], "-v") || !strcmp(argv[i], "--verbose")) {
pmo_verbose = 1;
} else if(!strcmp(argv[i], "-f") || !strcmp(argv[i], "--force")) {
pmo_force = 1;
} else if(!strcmp(argv[i], "-r") || !strcmp(argv[i], "--root")) {
i++;
if(i >= argc) {
printf("error: missing argument for %s\n", argv[i-1]);
return(NULL);
}
free(pmo_root);
pmo_root = (char*)malloc(PATH_MAX);
if(realpath(argv[i], pmo_root) == NULL) {
perror("bad root path");
return(NULL);
}
} else if(!strcmp(argv[i], "-n") || !strcmp(argv[i], "--nosave")) {
pmo_nosave = 1;
} else if(!strcmp(argv[i], "-o") || !strcmp(argv[i], "--owns")) {
/* PM_QUERY only */
i++;
if(i >= argc) {
printf("error: missing argument for %s\n", argv[i-1]);
return(NULL);
}
free(pmo_q_owns);
pmo_q_owns = (char*)malloc(PATH_MAX);
if(realpath(argv[i], pmo_q_owns) == NULL) {
perror("bad path specified for --owns");
pmo_nofunc = 1;
return(NULL);
}
} else if(!strcmp(argv[i], "-l") || !strcmp(argv[i], "--list")) {
/* PM_QUERY only */
pmo_q_list = 1;
} else if(!strcmp(argv[i], "-p") || !strcmp(argv[i], "--file")) {
/* PM_QUERY only */
pmo_q_isfile = 1;
} else if(!strcmp(argv[i], "-i") || !strcmp(argv[i], "--info")) {
/* PM_QUERY only */
pmo_q_info = 1;
} else {
pkg = argv[i];
}
}
if(op != PM_QUERY && pkg == NULL) {
printf("error: no package specified\n\n");
usage(op, (char*)basename(argv[0]));
return(NULL);
}
if(op == PM_QUERY && pmo_q_isfile && pkg == NULL) {
printf("error: no package file specified\n\n");
return(NULL);
}
return(pkg);
}
/* Display usage/syntax for the specified operation.
* op: the operation code requested
* myname: basename(argv[0])
*/
void usage(int op, char* myname)
{
if(op == PM_MAIN) {
printf("usage: %s {-h --help}\n", myname);
printf(" %s {-V --version}\n", myname);
printf(" %s {-A --add} [options] <file>\n", myname);
printf(" %s {-R --remove} [options] <package>\n", myname);
printf(" %s {-U --upgrade} [options] <file>\n", myname);
printf(" %s {-Q --query} [options] [package]\n", myname);
} else if(op == PM_ADD) {
printf("usage: %s {-A --add} [options] <file>\n", myname);
printf("options:\n");
printf(" -f, --force force install, overwrite conflicting files\n");
printf(" -n, --nosave do not save .conf files\n");
printf(" -v, --verbose be verbose\n");
printf(" -r, --root <path> set an alternative installation root\n");
} else if(op == PM_REMOVE) {
printf("usage: %s {-R --remove} [options] <package>\n", myname);
printf("options:\n");
printf(" -n, --nosave do not save .conf files\n");
printf(" -v, --verbose be verbose\n");
printf(" -r, --root <path> set an alternative installation root\n");
} else if(op == PM_UPGRADE) {
printf("usage: %s {-U --upgrade} [options] <file>\n", myname);
printf("options:\n");
printf(" -f, --force force install, overwrite conflicting files\n");
printf(" -n, --nosave do not save .conf files\n");
printf(" -v, --verbose be verbose\n");
printf(" -r, --root <path> set an alternative installation root\n");
} else if(op == PM_QUERY) {
printf("usage: %s {-Q --query} [options] [package]\n", myname);
printf("options:\n");
printf(" -r, --root <path> set an alternative installation root\n");
printf(" -o, --owns <file> query the package that owns <file>\n");
printf(" -l, --list list the contents of the queried package\n");
printf(" -i, --info output the .PKGINFO file (only used with -p)\n");
printf(" -p, --file if used, then [package] will be the path\n");
printf(" to an (uninstalled) package to query\n");
}
}
/* Version
*/
void version(void)
{
printf("\n");
printf(" .--. Pacman v%s\n", VERSION);
printf("/ _.-' .-. .-. .-. Copyright (C) 2002 Judd Vinet <jvinet@zeroflux.org>\n");
printf("\\ '-. '-' '-' '-' \n");
printf(" '--' This program may be freely redistributed under\n");
printf(" the terms of the GNU GPL\n\n");
}
/* Check verbosity option and, if set, print the
* string to stdout
*/
int vprint(char* fmt, ...)
{
va_list args;
if(pmo_verbose) {
va_start(args, fmt);
vprintf(fmt, args);
va_end(args);
fflush(stdout);
}
return(0);
}
/* Convert a string to uppercase
*/
char* strtoupper(char* str)
{
char* ptr = str;
while(*ptr) {
(*ptr) = toupper(*ptr);
ptr++;
}
return str;
}
/* Trim whitespace and newlines from a string
*/
char* trim(char* str)
{
char* start = str;
char* end = str + strlen(str);
int mid = 0;
char ch;
while(mid < 2) {
if(!mid) {
ch = *start;
if(ch == 10 || ch == 13 || ch == 9 || ch == 32) {
start++;
} else {
mid = 1;
}
} else {
end--;
ch = *end;
if(ch == 10 || ch == 13 || ch == 9 || ch == 32) {
*end = '\0';
} else {
mid = 2;
}
}
}
return(start);
}
/* vim: set ts=2 noet: */

64
pacman.h Normal file
View file

@ -0,0 +1,64 @@
/*
* pacman
*
* Copyright (c) 2002 by Judd Vinet <jvinet@zeroflux.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
#ifndef PACMAN_H
#define PACMAN_H
#define VERSION "1.0"
#define PKGEXT ".tar.gz"
#define PKGDB "/var/lib/pacman/pacman.db"
/* Operations */
#define PM_MAIN 0
#define PM_ADD 1
#define PM_REMOVE 2
#define PM_QUERY 3
#define PM_UPGRADE 4
typedef int (*pm_opfunc_t)(char*);
typedef char** fileset_t;
typedef struct __pkginfo_t {
char version[32];
char name[64];
} pkginfo_t;
int pacman_add(char* pkgfile);
int pacman_remove(char* pkgfile);
int pacman_query(char* pkgfile);
int pacman_upgrade(char* pkgfile);
int db_open(char* path);
int db_update(fileset_t files, unsigned int filecount);
int db_find_conflicts(fileset_t files, unsigned int filecount);
int load_pkg(char* pkgfile, fileset_t* listptr, unsigned short output);
int vprint(char* fmt, ...);
void usage(int op, char* myname);
void version(void);
char* parseargs(int op, int argc, char** argv);
int parse_descfile(char* descfile, unsigned short output);
char* trim(char* str);
char* strtoupper(char* str);
static int gzopen_frontend(char *pathname, int oflags, int mode);
#endif /* PACMAN_H */
/* vim: set ts=2 noet: */