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pacman/src/pacman/pacman.c

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/*
* pacman.c
*
* Copyright (c) 2006-2014 Pacman Development Team <pacman-dev@archlinux.org>
* Copyright (c) 2002-2006 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, see <http://www.gnu.org/licenses/>.
*/
/* special handling of package version for GIT */
#if defined(GIT_VERSION)
#undef PACKAGE_VERSION
#define PACKAGE_VERSION GIT_VERSION
#endif
#include <stdlib.h> /* atoi */
#include <stdio.h>
#include <ctype.h> /* isspace */
#include <limits.h>
#include <getopt.h>
#include <string.h>
#include <signal.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/utsname.h> /* uname */
#include <locale.h> /* setlocale */
#include <errno.h>
/* alpm */
#include <alpm.h>
#include <alpm_list.h>
/* pacman */
#include "pacman.h"
#include "util.h"
#include "conf.h"
/* list of targets specified on command line */
static alpm_list_t *pm_targets;
/* Used to sort the options in --help */
static int options_cmp(const void *p1, const void *p2)
{
const char *s1 = p1;
const char *s2 = p2;
if(s1 == s2) return 0;
if(!s1) return -1;
if(!s2) return 1;
/* First skip all spaces in both strings */
while(isspace((unsigned char)*s1)) {
s1++;
}
while(isspace((unsigned char)*s2)) {
s2++;
}
/* If we compare a long option (--abcd) and a short one (-a),
* the short one always wins */
if(*s1 == '-' && *s2 == '-') {
s1++;
s2++;
if(*s1 == '-' && *s2 == '-') {
/* two long -> strcmp */
s1++;
s2++;
} else if(*s2 == '-') {
/* s1 short, s2 long */
return -1;
} else if(*s1 == '-') {
/* s1 long, s2 short */
return 1;
}
/* two short -> strcmp */
}
return strcmp(s1, s2);
}
/** Display usage/syntax for the specified operation.
* @param op the operation code requested
* @param myname basename(argv[0])
*/
static void usage(int op, const char * const myname)
{
#define addlist(s) (list = alpm_list_add(list, s))
alpm_list_t *list = NULL, *i;
/* prefetch some strings for usage below, which moves a lot of calls
* out of gettext. */
char const * const str_opt = _("options");
char const * const str_file = _("file(s)");
char const * const str_pkg = _("package(s)");
char const * const str_usg = _("usage");
char const * const str_opr = _("operation");
/* please limit your strings to 80 characters in width */
if(op == PM_OP_MAIN) {
printf("%s: %s <%s> [...]\n", str_usg, myname, str_opr);
printf(_("operations:\n"));
printf(" %s {-h --help}\n", myname);
printf(" %s {-V --version}\n", myname);
printf(" %s {-D --database} <%s> <%s>\n", myname, str_opt, str_pkg);
printf(" %s {-Q --query} [%s] [%s]\n", myname, str_opt, str_pkg);
printf(" %s {-R --remove} [%s] <%s>\n", myname, str_opt, str_pkg);
printf(" %s {-S --sync} [%s] [%s]\n", myname, str_opt, str_pkg);
printf(" %s {-T --deptest} [%s] [%s]\n", myname, str_opt, str_pkg);
printf(" %s {-U --upgrade} [%s] <%s>\n", myname, str_opt, str_file);
printf(_("\nuse '%s {-h --help}' with an operation for available options\n"),
myname);
} else {
if(op == PM_OP_REMOVE) {
printf("%s: %s {-R --remove} [%s] <%s>\n", str_usg, myname, str_opt, str_pkg);
printf("%s:\n", str_opt);
addlist(_(" -c, --cascade remove packages and all packages that depend on them\n"));
addlist(_(" -n, --nosave remove configuration files\n"));
addlist(_(" -s, --recursive remove unnecessary dependencies\n"
" (-ss includes explicitly installed dependencies)\n"));
addlist(_(" -u, --unneeded remove unneeded packages\n"));
} else if(op == PM_OP_UPGRADE) {
printf("%s: %s {-U --upgrade} [%s] <%s>\n", str_usg, myname, str_opt, str_file);
addlist(_(" --needed do not reinstall up to date packages\n"));
printf("%s:\n", str_opt);
} else if(op == PM_OP_QUERY) {
printf("%s: %s {-Q --query} [%s] [%s]\n", str_usg, myname, str_opt, str_pkg);
printf("%s:\n", str_opt);
addlist(_(" -c, --changelog view the changelog of a package\n"));
addlist(_(" -d, --deps list packages installed as dependencies [filter]\n"));
addlist(_(" -e, --explicit list packages explicitly installed [filter]\n"));
addlist(_(" -g, --groups view all members of a package group\n"));
addlist(_(" -i, --info view package information (-ii for backup files)\n"));
addlist(_(" -k, --check check that package files exist (-kk for file properties)\n"));
addlist(_(" -l, --list list the contents of the queried package\n"));
addlist(_(" -m, --foreign list installed packages not found in sync db(s) [filter]\n"));
addlist(_(" -n, --native list installed packages only found in sync db(s) [filter]\n"));
addlist(_(" -o, --owns <file> query the package that owns <file>\n"));
addlist(_(" -p, --file <package> query a package file instead of the database\n"));
addlist(_(" -q, --quiet show less information for query and search\n"));
addlist(_(" -s, --search <regex> search locally-installed packages for matching strings\n"));
addlist(_(" -t, --unrequired list packages not (optionally) required by any\n"
" package (-tt to ignore optdepends) [filter]\n"));
addlist(_(" -u, --upgrades list outdated packages [filter]\n"));
} else if(op == PM_OP_SYNC) {
printf("%s: %s {-S --sync} [%s] [%s]\n", str_usg, myname, str_opt, str_pkg);
printf("%s:\n", str_opt);
addlist(_(" -c, --clean remove old packages from cache directory (-cc for all)\n"));
addlist(_(" -g, --groups view all members of a package group\n"));
addlist(_(" -i, --info view package information\n"));
addlist(_(" -l, --list <repo> view a list of packages in a repo\n"));
addlist(_(" -q, --quiet show less information for query and search\n"));
addlist(_(" -s, --search <regex> search remote repositories for matching strings\n"));
addlist(_(" -u, --sysupgrade upgrade installed packages (-uu allows downgrade)\n"));
addlist(_(" -w, --downloadonly download packages but do not install/upgrade anything\n"));
addlist(_(" -y, --refresh download fresh package databases from the server\n"));
addlist(_(" --needed do not reinstall up to date packages\n"));
} else if(op == PM_OP_DATABASE) {
printf("%s: %s {-D --database} <%s> <%s>\n", str_usg, myname, str_opt, str_pkg);
printf("%s:\n", str_opt);
addlist(_(" --asdeps mark packages as non-explicitly installed\n"));
addlist(_(" --asexplicit mark packages as explicitly installed\n"));
} else if(op == PM_OP_DEPTEST) {
printf("%s: %s {-T --deptest} [%s] [%s]\n", str_usg, myname, str_opt, str_pkg);
printf("%s:\n", str_opt);
}
switch(op) {
case PM_OP_SYNC:
case PM_OP_UPGRADE:
addlist(_(" --force force install, overwrite conflicting files\n"));
addlist(_(" --asdeps install packages as non-explicitly installed\n"));
addlist(_(" --asexplicit install packages as explicitly installed\n"));
addlist(_(" --ignore <pkg> ignore a package upgrade (can be used more than once)\n"));
addlist(_(" --ignoregroup <grp>\n"
" ignore a group upgrade (can be used more than once)\n"));
/* pass through */
case PM_OP_REMOVE:
addlist(_(" -d, --nodeps skip dependency version checks (-dd to skip all checks)\n"));
addlist(_(" --dbonly only modify database entries, not package files\n"));
addlist(_(" --noprogressbar do not show a progress bar when downloading files\n"));
addlist(_(" --noscriptlet do not execute the install scriptlet if one exists\n"));
addlist(_(" -p, --print print the targets instead of performing the operation\n"));
addlist(_(" --print-format <string>\n"
" specify how the targets should be printed\n"));
break;
}
addlist(_(" -b, --dbpath <path> set an alternate database location\n"));
addlist(_(" -r, --root <path> set an alternate installation root\n"));
addlist(_(" -v, --verbose be verbose\n"));
addlist(_(" --arch <arch> set an alternate architecture\n"));
addlist(_(" --cachedir <dir> set an alternate package cache location\n"));
addlist(_(" --color <when> colorize the output\n"));
addlist(_(" --config <path> set an alternate configuration file\n"));
addlist(_(" --debug display debug messages\n"));
addlist(_(" --gpgdir <path> set an alternate home directory for GnuPG\n"));
addlist(_(" --logfile <path> set an alternate log file\n"));
addlist(_(" --noconfirm do not ask for any confirmation\n"));
}
list = alpm_list_msort(list, alpm_list_count(list), options_cmp);
for(i = list; i; i = alpm_list_next(i)) {
fputs((const char *)i->data, stdout);
}
alpm_list_free(list);
#undef addlist
}
/** Output pacman version and copyright.
*/
static void version(void)
{
printf("\n");
printf(" .--. Pacman v%s - libalpm v%s\n", PACKAGE_VERSION, alpm_version());
printf("/ _.-' .-. .-. .-. Copyright (C) 2006-2014 Pacman Development Team\n");
printf("\\ '-. '-' '-' '-' Copyright (C) 2002-2006 Judd Vinet\n");
printf(" '--'\n");
printf(_(" This program may be freely redistributed under\n"
" the terms of the GNU General Public License.\n"));
printf("\n");
}
/** Sets up gettext localization. Safe to call multiple times.
*/
/* Inspired by the monotone function localize_monotone. */
#if defined(ENABLE_NLS)
static void localize(void)
{
static int init = 0;
if(!init) {
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
init = 1;
}
}
#endif
/** Set user agent environment variable.
*/
static void setuseragent(void)
{
char agent[101];
struct utsname un;
uname(&un);
snprintf(agent, 100, "pacman/%s (%s %s) libalpm/%s",
PACKAGE_VERSION, un.sysname, un.machine, alpm_version());
setenv("HTTP_USER_AGENT", agent, 0);
}
/** Free the resources.
*
* @param ret the return value
*/
static void cleanup(int ret)
{
/* free alpm library resources */
if(config->handle && alpm_release(config->handle) == -1) {
pm_printf(ALPM_LOG_ERROR, "error releasing alpm library\n");
}
/* free memory */
FREELIST(pm_targets);
if(config) {
config_free(config);
config = NULL;
}
exit(ret);
}
/** Write function that correctly handles EINTR.
*/
static ssize_t xwrite(int fd, const void *buf, size_t count)
{
ssize_t ret;
do {
ret = write(fd, buf, count);
} while(ret == -1 && errno == EINTR);
return ret;
}
/** Catches thrown signals. Performs necessary cleanup to ensure database is
* in a consistent state.
* @param signum the thrown signal
*/
static void handler(int signum)
{
int out = fileno(stdout);
int err = fileno(stderr);
const char *msg;
if(signum == SIGSEGV) {
msg = "\nerror: segmentation fault\n"
"Please submit a full bug report with --debug if appropriate.\n";
xwrite(err, msg, strlen(msg));
exit(signum);
} else if(signum == SIGINT || signum == SIGHUP) {
if(signum == SIGINT) {
msg = "\nInterrupt signal received\n";
} else {
msg = "\nHangup signal received\n";
}
xwrite(err, msg, strlen(msg));
if(alpm_trans_interrupt(config->handle) == 0) {
/* a transaction is being interrupted, don't exit pacman yet. */
return;
}
}
/* SIGINT: no committing transaction, release it now and then exit pacman
* SIGHUP, SIGTERM: release no matter what */
alpm_trans_release(config->handle);
/* output a newline to be sure we clear any line we may be on */
xwrite(out, "\n", 1);
cleanup(128 + signum);
}
static void invalid_opt(int used, const char *opt1, const char *opt2)
{
if(used) {
pm_printf(ALPM_LOG_ERROR,
_("invalid option: '%s' and '%s' may not be used together\n"),
opt1, opt2);
cleanup(1);
}
}
static int parsearg_util_addlist(alpm_list_t **list)
{
char *i, *save;
for(i = strtok_r(optarg, ",", &save); i; i = strtok_r(NULL, ",", &save)) {
*list = alpm_list_add(*list, strdup(i));
}
return 0;
}
/** Helper function for parsing operation from command-line arguments.
* @param opt Keycode returned by getopt_long
* @param dryrun If nonzero, application state is NOT changed
* @return 0 if opt was handled, 1 if it was not handled
*/
static int parsearg_op(int opt, int dryrun)
{
switch(opt) {
/* operations */
case 'D':
if(dryrun) break;
config->op = (config->op != PM_OP_MAIN ? 0 : PM_OP_DATABASE); break;
case 'Q':
if(dryrun) break;
config->op = (config->op != PM_OP_MAIN ? 0 : PM_OP_QUERY); break;
case 'R':
if(dryrun) break;
config->op = (config->op != PM_OP_MAIN ? 0 : PM_OP_REMOVE); break;
case 'S':
if(dryrun) break;
config->op = (config->op != PM_OP_MAIN ? 0 : PM_OP_SYNC); break;
case 'T':
if(dryrun) break;
config->op = (config->op != PM_OP_MAIN ? 0 : PM_OP_DEPTEST); break;
case 'U':
if(dryrun) break;
config->op = (config->op != PM_OP_MAIN ? 0 : PM_OP_UPGRADE); break;
case 'V':
if(dryrun) break;
config->version = 1; break;
case 'h':
if(dryrun) break;
config->help = 1; break;
default:
return 1;
}
return 0;
}
/** Helper functions for parsing command-line arguments.
* @param opt Keycode returned by getopt_long
* @return 0 on success, 1 on failure
*/
static int parsearg_global(int opt)
{
switch(opt) {
case OP_ARCH:
config_set_arch(optarg);
break;
case OP_ASK:
config->noask = 1;
config->ask = (unsigned int)atoi(optarg);
break;
case OP_CACHEDIR:
config->cachedirs = alpm_list_add(config->cachedirs, strdup(optarg));
break;
case OP_COLOR:
if(strcmp("never", optarg) == 0) {
config->color = PM_COLOR_OFF;
} else if(strcmp("auto", optarg) == 0) {
config->color = isatty(fileno(stdout)) ? PM_COLOR_ON : PM_COLOR_OFF;
} else if(strcmp("always", optarg) == 0) {
config->color = PM_COLOR_ON;
} else {
pm_printf(ALPM_LOG_ERROR, _("invalid argument '%s' for %s\n"),
optarg, "--color");
return 1;
}
enable_colors(config->color);
break;
case OP_CONFIG:
if(config->configfile) {
free(config->configfile);
}
config->configfile = strndup(optarg, PATH_MAX);
break;
case OP_DEBUG:
/* debug levels are made more 'human readable' than using a raw logmask
* here, error and warning are set in config_new, though perhaps a
* --quiet option will remove these later */
if(optarg) {
unsigned short debug = (unsigned short)atoi(optarg);
switch(debug) {
case 2:
config->logmask |= ALPM_LOG_FUNCTION; /* fall through */
case 1:
config->logmask |= ALPM_LOG_DEBUG;
break;
default:
pm_printf(ALPM_LOG_ERROR, _("'%s' is not a valid debug level\n"),
optarg);
return 1;
}
} else {
config->logmask |= ALPM_LOG_DEBUG;
}
/* progress bars get wonky with debug on, shut them off */
config->noprogressbar = 1;
break;
case OP_GPGDIR:
free(config->gpgdir);
config->gpgdir = strdup(optarg);
break;
case OP_LOGFILE:
free(config->logfile);
config->logfile = strndup(optarg, PATH_MAX);
break;
case OP_NOCONFIRM:
config->noconfirm = 1;
break;
case OP_DBPATH:
case 'b':
free(config->dbpath);
config->dbpath = strdup(optarg);
break;
case OP_ROOT:
case 'r':
free(config->rootdir);
config->rootdir = strdup(optarg);
break;
case OP_VERBOSE:
case 'v':
(config->verbose)++;
break;
default:
return 1;
}
return 0;
}
static int parsearg_database(int opt)
{
switch(opt) {
case OP_ASDEPS: config->flags |= ALPM_TRANS_FLAG_ALLDEPS; break;
case OP_ASEXPLICIT: config->flags |= ALPM_TRANS_FLAG_ALLEXPLICIT; break;
default: return 1;
}
return 0;
}
static void checkargs_database(void)
{
invalid_opt(config->flags & ALPM_TRANS_FLAG_ALLDEPS
&& config->flags & ALPM_TRANS_FLAG_ALLEXPLICIT,
"--asdeps", "--asexplicit");
}
static int parsearg_query(int opt)
{
switch(opt) {
case OP_CHANGELOG:
case 'c':
config->op_q_changelog = 1;
break;
case OP_DEPS:
case 'd':
config->op_q_deps = 1;
break;
case OP_EXPLICIT:
case 'e':
config->op_q_explicit = 1;
break;
case OP_GROUPS:
case 'g':
(config->group)++;
break;
case OP_INFO:
case 'i':
(config->op_q_info)++;
break;
case OP_CHECK:
case 'k':
(config->op_q_check)++;
break;
case OP_LIST:
case 'l':
config->op_q_list = 1;
break;
case OP_FOREIGN:
case 'm':
config->op_q_locality |= PKG_LOCALITY_FOREIGN;
break;
case OP_NATIVE:
case 'n':
config->op_q_locality |= PKG_LOCALITY_NATIVE;
break;
case OP_OWNS:
case 'o':
config->op_q_owns = 1;
break;
case OP_FILE:
case 'p':
config->op_q_isfile = 1;
break;
case OP_QUIET:
case 'q':
config->quiet = 1;
break;
case OP_SEARCH:
case 's':
config->op_q_search = 1;
break;
case OP_UNREQUIRED:
case 't':
(config->op_q_unrequired)++;
break;
case OP_UPGRADES:
case 'u':
config->op_q_upgrade = 1; break;
default:
return 1;
}
return 0;
}
static void checkargs_query_display_opts(const char *opname) {
invalid_opt(config->op_q_changelog, opname, "--changelog");
invalid_opt(config->op_q_check, opname, "--check");
invalid_opt(config->op_q_info, opname, "--info");
invalid_opt(config->op_q_list, opname, "--list");
}
static void checkargs_query_filter_opts(const char *opname) {
invalid_opt(config->op_q_deps, opname, "--deps");
invalid_opt(config->op_q_explicit, opname, "--explicit");
invalid_opt(config->op_q_upgrade, opname, "--upgrade");
invalid_opt(config->op_q_unrequired, opname, "--unrequired");
invalid_opt(config->op_q_locality & PKG_LOCALITY_NATIVE, opname, "--native");
invalid_opt(config->op_q_locality & PKG_LOCALITY_FOREIGN, opname, "--foreign");
}
static void checkargs_query(void)
{
if(config->op_q_isfile) {
invalid_opt(config->group, "--file", "--groups");
invalid_opt(config->op_q_search, "--file", "--search");
invalid_opt(config->op_q_owns, "--file", "--owns");
} else if(config->op_q_search) {
invalid_opt(config->group, "--search", "--groups");
invalid_opt(config->op_q_owns, "--search", "--owns");
checkargs_query_display_opts("--search");
checkargs_query_filter_opts("--search");
} else if(config->op_q_owns) {
invalid_opt(config->group, "--owns", "--groups");
checkargs_query_display_opts("--owns");
checkargs_query_filter_opts("--owns");
} else if(config->group) {
checkargs_query_display_opts("--groups");
}
invalid_opt(config->op_q_deps && config->op_q_explicit, "--deps", "--explicit");
invalid_opt((config->op_q_locality & PKG_LOCALITY_NATIVE) &&
(config->op_q_locality & PKG_LOCALITY_FOREIGN),
"--native", "--foreign");
}
/* options common to -S -R -U */
static int parsearg_trans(int opt)
{
switch(opt) {
case OP_NODEPS:
case 'd':
if(config->flags & ALPM_TRANS_FLAG_NODEPVERSION) {
config->flags |= ALPM_TRANS_FLAG_NODEPS;
} else {
config->flags |= ALPM_TRANS_FLAG_NODEPVERSION;
}
break;
case OP_DBONLY:
config->flags |= ALPM_TRANS_FLAG_DBONLY;
config->flags |= ALPM_TRANS_FLAG_NOSCRIPTLET;
break;
case OP_NOPROGRESSBAR:
config->noprogressbar = 1;
break;
case OP_NOSCRIPTLET:
config->flags |= ALPM_TRANS_FLAG_NOSCRIPTLET;
break;
case OP_PRINT:
case 'p':
config->print = 1;
break;
case OP_PRINTFORMAT:
config->print = 1;
free(config->print_format);
config->print_format = strdup(optarg);
break;
default:
return 1;
}
return 0;
}
static void checkargs_trans(void)
{
if(config->print) {
invalid_opt(config->flags & ALPM_TRANS_FLAG_DBONLY,
"--print", "--dbonly");
invalid_opt(config->flags & ALPM_TRANS_FLAG_NOSCRIPTLET,
"--print", "--noscriptlet");
}
}
static int parsearg_remove(int opt)
{
if(parsearg_trans(opt) == 0) {
return 0;
}
switch(opt) {
case OP_CASCADE:
case 'c':
config->flags |= ALPM_TRANS_FLAG_CASCADE;
break;
case OP_NOSAVE:
case 'n':
config->flags |= ALPM_TRANS_FLAG_NOSAVE;
break;
case OP_RECURSIVE:
case 's':
if(config->flags & ALPM_TRANS_FLAG_RECURSE) {
config->flags |= ALPM_TRANS_FLAG_RECURSEALL;
} else {
config->flags |= ALPM_TRANS_FLAG_RECURSE;
}
break;
case OP_UNNEEDED:
case 'u':
config->flags |= ALPM_TRANS_FLAG_UNNEEDED;
break;
default:
return 1;
}
return 0;
}
static void checkargs_remove(void)
{
checkargs_trans();
if(config->flags & ALPM_TRANS_FLAG_NOSAVE) {
invalid_opt(config->print, "--nosave", "--print");
invalid_opt(config->flags & ALPM_TRANS_FLAG_DBONLY,
"--nosave", "--dbonly");
}
}
/* options common to -S -U */
static int parsearg_upgrade(int opt)
{
if(parsearg_trans(opt) == 0) {
return 0;
}
switch(opt) {
case OP_FORCE: config->flags |= ALPM_TRANS_FLAG_FORCE; break;
case OP_ASDEPS: config->flags |= ALPM_TRANS_FLAG_ALLDEPS; break;
case OP_ASEXPLICIT: config->flags |= ALPM_TRANS_FLAG_ALLEXPLICIT; break;
case OP_NEEDED: config->flags |= ALPM_TRANS_FLAG_NEEDED; break;
case OP_IGNORE:
parsearg_util_addlist(&(config->ignorepkg));
break;
case OP_IGNOREGROUP:
parsearg_util_addlist(&(config->ignoregrp));
break;
default: return 1;
}
return 0;
}
static void checkargs_upgrade(void)
{
checkargs_trans();
invalid_opt(config->flags & ALPM_TRANS_FLAG_ALLDEPS
&& config->flags & ALPM_TRANS_FLAG_ALLEXPLICIT,
"--asdeps", "--asexplicit");
}
static int parsearg_sync(int opt)
{
if(parsearg_upgrade(opt) == 0) {
return 0;
}
switch(opt) {
case OP_CLEAN:
case 'c':
(config->op_s_clean)++;
break;
case OP_GROUPS:
case 'g':
(config->group)++;
break;
case OP_INFO:
case 'i':
(config->op_s_info)++;
break;
case OP_LIST:
case 'l':
config->op_q_list = 1;
break;
case OP_QUIET:
case 'q':
config->quiet = 1;
break;
case OP_SEARCH:
case 's':
config->op_s_search = 1;
break;
case OP_SYSUPGRADE:
case 'u':
(config->op_s_upgrade)++;
break;
case OP_DOWNLOADONLY:
case 'w':
config->op_s_downloadonly = 1;
config->flags |= ALPM_TRANS_FLAG_DOWNLOADONLY;
config->flags |= ALPM_TRANS_FLAG_NOCONFLICTS;
break;
case OP_REFRESH:
case 'y':
(config->op_s_sync)++;
break;
default:
return 1;
}
return 0;
}
static void checkargs_sync(void)
{
checkargs_upgrade();
if(config->op_s_clean) {
invalid_opt(config->group, "--clean", "--groups");
invalid_opt(config->op_s_info, "--clean", "--info");
invalid_opt(config->op_q_list, "--clean", "--list");
invalid_opt(config->op_s_sync, "--clean", "--refresh");
invalid_opt(config->op_s_search, "--clean", "--search");
invalid_opt(config->op_s_upgrade, "--clean", "--sysupgrade");
invalid_opt(config->op_s_downloadonly, "--clean", "--downloadonly");
} else if(config->op_s_info) {
invalid_opt(config->group, "--info", "--groups");
invalid_opt(config->op_q_list, "--info", "--list");
invalid_opt(config->op_s_search, "--info", "--search");
invalid_opt(config->op_s_upgrade, "--info", "--sysupgrade");
invalid_opt(config->op_s_downloadonly, "--info", "--downloadonly");
} else if(config->op_s_search) {
invalid_opt(config->group, "--search", "--groups");
invalid_opt(config->op_q_list, "--search", "--list");
invalid_opt(config->op_s_upgrade, "--search", "--sysupgrade");
invalid_opt(config->op_s_downloadonly, "--search", "--downloadonly");
} else if(config->op_q_list) {
invalid_opt(config->group, "--list", "--groups");
invalid_opt(config->op_s_upgrade, "--list", "--sysupgrade");
invalid_opt(config->op_s_downloadonly, "--list", "--downloadonly");
} else if(config->group) {
invalid_opt(config->op_s_upgrade, "--groups", "--sysupgrade");
invalid_opt(config->op_s_downloadonly, "--groups", "--downloadonly");
}
}
/** Parse command-line arguments for each operation.
* @param argc argc
* @param argv argv
* @return 0 on success, 1 on error
*/
static int parseargs(int argc, char *argv[])
{
int opt;
int option_index = 0;
int result;
const char *optstring = "DQRSTUVb:cdefghiklmnopqr:stuvwy";
static const struct option opts[] =
{
{"database", no_argument, 0, 'D'},
{"query", no_argument, 0, 'Q'},
{"remove", no_argument, 0, 'R'},
{"sync", no_argument, 0, 'S'},
{"deptest", no_argument, 0, 'T'}, /* used by makepkg */
{"upgrade", no_argument, 0, 'U'},
{"version", no_argument, 0, 'V'},
{"help", no_argument, 0, 'h'},
{"dbpath", required_argument, 0, OP_DBPATH},
{"cascade", no_argument, 0, OP_CASCADE},
{"changelog", no_argument, 0, OP_CHANGELOG},
{"clean", no_argument, 0, OP_CLEAN},
{"nodeps", no_argument, 0, OP_NODEPS},
{"deps", no_argument, 0, OP_DEPS},
{"explicit", no_argument, 0, OP_EXPLICIT},
{"groups", no_argument, 0, OP_GROUPS},
{"info", no_argument, 0, OP_INFO},
{"check", no_argument, 0, OP_CHECK},
{"list", no_argument, 0, OP_LIST},
{"foreign", no_argument, 0, OP_FOREIGN},
{"native", no_argument, 0, OP_NATIVE},
{"nosave", no_argument, 0, OP_NOSAVE},
{"owns", no_argument, 0, OP_OWNS},
{"file", no_argument, 0, OP_FILE},
{"print", no_argument, 0, OP_PRINT},
{"quiet", no_argument, 0, OP_QUIET},
{"root", required_argument, 0, OP_ROOT},
{"recursive", no_argument, 0, OP_RECURSIVE},
{"search", no_argument, 0, OP_SEARCH},
{"unrequired", no_argument, 0, OP_UNREQUIRED},
{"upgrades", no_argument, 0, OP_UPGRADES},
{"sysupgrade", no_argument, 0, OP_SYSUPGRADE},
{"unneeded", no_argument, 0, OP_UNNEEDED},
{"verbose", no_argument, 0, OP_VERBOSE},
{"downloadonly", no_argument, 0, OP_DOWNLOADONLY},
{"refresh", no_argument, 0, OP_REFRESH},
{"noconfirm", no_argument, 0, OP_NOCONFIRM},
{"config", required_argument, 0, OP_CONFIG},
{"ignore", required_argument, 0, OP_IGNORE},
{"debug", optional_argument, 0, OP_DEBUG},
{"force", no_argument, 0, OP_FORCE},
{"noprogressbar", no_argument, 0, OP_NOPROGRESSBAR},
{"noscriptlet", no_argument, 0, OP_NOSCRIPTLET},
{"ask", required_argument, 0, OP_ASK},
{"cachedir", required_argument, 0, OP_CACHEDIR},
{"asdeps", no_argument, 0, OP_ASDEPS},
{"logfile", required_argument, 0, OP_LOGFILE},
{"ignoregroup", required_argument, 0, OP_IGNOREGROUP},
{"needed", no_argument, 0, OP_NEEDED},
{"asexplicit", no_argument, 0, OP_ASEXPLICIT},
{"arch", required_argument, 0, OP_ARCH},
{"print-format", required_argument, 0, OP_PRINTFORMAT},
{"gpgdir", required_argument, 0, OP_GPGDIR},
{"dbonly", no_argument, 0, OP_DBONLY},
{"color", required_argument, 0, OP_COLOR},
{0, 0, 0, 0}
};
/* parse operation */
while((opt = getopt_long(argc, argv, optstring, opts, &option_index)) != -1) {
if(opt == 0) {
continue;
} else if(opt == '?') {
/* unknown option, getopt printed an error */
return 1;
}
parsearg_op(opt, 0);
}
if(config->op == 0) {
pm_printf(ALPM_LOG_ERROR, _("only one operation may be used at a time\n"));
return 1;
}
if(config->help) {
usage(config->op, mbasename(argv[0]));
return 2;
}
if(config->version) {
version();
return 2;
}
/* parse all other options */
optind = 1;
while((opt = getopt_long(argc, argv, optstring, opts, &option_index)) != -1) {
if(opt == 0) {
continue;
} else if(opt == '?') {
/* this should have failed during first pass already */
return 1;
} else if(parsearg_op(opt, 1) == 0) {
/* opt is an operation */
continue;
}
switch(config->op) {
case PM_OP_DATABASE:
result = parsearg_database(opt);
break;
case PM_OP_QUERY:
result = parsearg_query(opt);
break;
case PM_OP_REMOVE:
result = parsearg_remove(opt);
break;
case PM_OP_SYNC:
result = parsearg_sync(opt);
break;
case PM_OP_UPGRADE:
result = parsearg_upgrade(opt);
break;
case PM_OP_DEPTEST:
default:
result = 1;
break;
}
if(result == 0) {
continue;
}
/* fall back to global options */
result = parsearg_global(opt);
if(result != 0) {
/* global option parsing failed, abort */
if(opt < OP_LONG_FLAG_MIN) {
pm_printf(ALPM_LOG_ERROR, _("invalid option '-%c'\n"), opt);
} else {
pm_printf(ALPM_LOG_ERROR, _("invalid option '--%s'\n"),
opts[option_index].name);
}
return result;
}
}
while(optind < argc) {
/* add the target to our target array */
pm_targets = alpm_list_add(pm_targets, strdup(argv[optind]));
optind++;
}
switch(config->op) {
case PM_OP_DATABASE:
checkargs_database();
break;
case PM_OP_DEPTEST:
/* no conflicting options */
break;
case PM_OP_SYNC:
checkargs_sync();
break;
case PM_OP_QUERY:
checkargs_query();
break;
case PM_OP_REMOVE:
checkargs_remove();
break;
case PM_OP_UPGRADE:
checkargs_upgrade();
break;
default:
break;
}
return 0;
}
/** Print command line to logfile.
* @param argc
* @param argv
*/
static void cl_to_log(int argc, char *argv[])
{
size_t size = 0;
int i;
for(i = 0; i < argc; i++) {
size += strlen(argv[i]) + 1;
}
if(!size) {
return;
}
char *cl_text = malloc(size);
if(!cl_text) {
return;
}
char *p = cl_text;
for(i = 0; i < argc - 1; i++) {
strcpy(p, argv[i]);
p += strlen(argv[i]);
*p++ = ' ';
}
strcpy(p, argv[i]);
alpm_logaction(config->handle, PACMAN_CALLER_PREFIX,
"Running '%s'\n", cl_text);
free(cl_text);
}
/** Main function.
* @param argc
* @param argv
* @return A return code indicating success, failure, etc.
*/
int main(int argc, char *argv[])
{
int ret = 0;
size_t i;
struct sigaction new_action, old_action;
const int signals[] = { SIGHUP, SIGINT, SIGTERM, SIGSEGV };
uid_t myuid = getuid();
/* Set signal handlers */
/* Set up the structure to specify the new action. */
new_action.sa_handler = handler;
sigemptyset(&new_action.sa_mask);
new_action.sa_flags = 0;
/* assign our handler to any signals we care about */
for(i = 0; i < sizeof(signals) / sizeof(signals[0]); i++) {
int signal = signals[i];
sigaction(signal, NULL, &old_action);
if(old_action.sa_handler != SIG_IGN) {
sigaction(signal, &new_action, NULL);
}
}
/* i18n init */
#if defined(ENABLE_NLS)
localize();
#endif
/* set user agent for downloading */
setuseragent();
/* init config data */
config = config_new();
/* disable progressbar if the output is redirected */
if(!isatty(fileno(stdout))) {
config->noprogressbar = 1;
}
/* Priority of options:
* 1. command line
* 2. config file
* 3. compiled-in defaults
* However, we have to parse the command line first because a config file
* location can be specified here, so we need to make sure we prefer these
* options over the config file coming second.
*/
/* parse the command line */
ret = parseargs(argc, argv);
if(ret != 0) {
cleanup(ret);
}
/* we support reading targets from stdin if a cmdline parameter is '-' */
if(alpm_list_find_str(pm_targets, "-")) {
if(!isatty(fileno(stdin))) {
int target_found = 0;
size_t current_size = PATH_MAX;
char *vdata, *line = malloc(current_size);
int c;
/* remove the '-' from the list */
pm_targets = alpm_list_remove_str(pm_targets, "-", &vdata);
free(vdata);
i = 0;
while((c = fgetc(stdin)) != EOF) {
line[i] = (char)c;
if(isspace((unsigned char)line[i])) {
/* avoid adding zero length arg when multiple spaces separate args */
if(i > 0) {
line[i] = '\0';
pm_targets = alpm_list_add(pm_targets, strdup(line));
target_found = 1;
i = 0;
}
} else {
i++;
/* we may be at the end of our allocated buffer now */
if(i >= current_size) {
char *new = realloc(line, current_size * 2);
if(new) {
line = new;
current_size *= 2;
} else {
free(line);
line = NULL;
break;
}
}
}
}
/* check for memory exhaustion */
if(!line) {
pm_printf(ALPM_LOG_ERROR, _("memory exhausted in argument parsing\n"));
cleanup(EXIT_FAILURE);
}
/* end of stream -- check for data still in line buffer */
if(i > 0) {
line[i] = '\0';
pm_targets = alpm_list_add(pm_targets, strdup(line));
target_found = 1;
}
free(line);
if(!freopen(ctermid(NULL), "r", stdin)) {
pm_printf(ALPM_LOG_ERROR, _("failed to reopen stdin for reading: (%s)\n"),
strerror(errno));
}
if(!target_found) {
pm_printf(ALPM_LOG_ERROR, _("argument '-' specified with empty stdin\n"));
cleanup(1);
}
} else {
/* do not read stdin from terminal */
pm_printf(ALPM_LOG_ERROR, _("argument '-' specified without input on stdin\n"));
cleanup(1);
}
}
pm_printf(ALPM_LOG_DEBUG, "pacman v%s - libalpm v%s\n", PACKAGE_VERSION, alpm_version());
/* parse the config file */
ret = parseconfig(config->configfile);
if(ret != 0) {
cleanup(ret);
}
/* noask is meant to be non-interactive */
if(config->noask) {
config->noconfirm = 1;
}
/* set up the print operations */
if(config->print && !config->op_s_clean) {
config->noconfirm = 1;
config->flags |= ALPM_TRANS_FLAG_NOCONFLICTS;
config->flags |= ALPM_TRANS_FLAG_NOLOCK;
/* Display only errors */
config->logmask &= ~ALPM_LOG_WARNING;
}
/* check if we have sufficient permission for the requested operation */
if(myuid > 0 && needs_root()) {
pm_printf(ALPM_LOG_ERROR, _("you cannot perform this operation unless you are root.\n"));
cleanup(EXIT_FAILURE);
}
if(config->verbose > 0) {
alpm_list_t *j;
printf("Root : %s\n", alpm_option_get_root(config->handle));
printf("Conf File : %s\n", config->configfile);
printf("DB Path : %s\n", alpm_option_get_dbpath(config->handle));
printf("Cache Dirs: ");
for(j = alpm_option_get_cachedirs(config->handle); j; j = alpm_list_next(j)) {
printf("%s ", (const char *)j->data);
}
printf("\n");
printf("Lock File : %s\n", alpm_option_get_lockfile(config->handle));
printf("Log File : %s\n", alpm_option_get_logfile(config->handle));
printf("GPG Dir : %s\n", alpm_option_get_gpgdir(config->handle));
list_display("Targets :", pm_targets, 0);
}
/* Log command line */
if(needs_root()) {
cl_to_log(argc, argv);
}
/* start the requested operation */
switch(config->op) {
case PM_OP_DATABASE:
ret = pacman_database(pm_targets);
break;
case PM_OP_REMOVE:
ret = pacman_remove(pm_targets);
break;
case PM_OP_UPGRADE:
ret = pacman_upgrade(pm_targets);
break;
case PM_OP_QUERY:
ret = pacman_query(pm_targets);
break;
case PM_OP_SYNC:
ret = pacman_sync(pm_targets);
break;
case PM_OP_DEPTEST:
ret = pacman_deptest(pm_targets);
break;
default:
pm_printf(ALPM_LOG_ERROR, _("no operation specified (use -h for help)\n"));
ret = EXIT_FAILURE;
}
cleanup(ret);
/* not reached */
return EXIT_SUCCESS;
}
/* vim: set noet: */
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