6010a24de6
The funcs xbps_pkg_name() and xbps_pkgpattern_name() were using malloc(3) to return the result, until now. They now have been changed to not allocate the result via malloc, the caller is responsible to provide a buffer at least of XBPS_NAME_SIZE (64). If for whatever reason the pkgname can't be guessed, returns false. This should avoid lots of small allocs around libxbps. New functions have the following prototype: bool xbps_pkg_name(char *dst, size_t len, const char *pkg) bool xbps_pkgpattern_name(char *dst, size_t len, const char *pkg) as suggested by @duncaen.
326 lines
8.9 KiB
C
326 lines
8.9 KiB
C
/*-
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* Copyright (c) 2008-2015 Juan Romero Pardines.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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#include <strings.h>
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#include <errno.h>
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#include <ctype.h>
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#include <assert.h>
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#include <unistd.h>
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#include <getopt.h>
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#include <xbps.h>
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#include "../xbps-install/defs.h"
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static void __attribute__((noreturn))
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usage(void)
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{
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fprintf(stdout,
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"usage: xbps-uhelper [options] [action] [args]\n"
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"\n"
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" Available actions:\n"
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" binpkgarch, binpkgver, cmpver, fetch, getpkgdepname,\n"
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" getpkgname, getpkgrevision, getpkgversion, pkgmatch, version,\n"
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" real-version, arch, getsystemdir\n"
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"\n"
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" Action arguments:\n"
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" binpkgarch\t<binpkg>\n"
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" binpkgver\t<binpkg>\n"
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" cmpver\t\t<instver> <reqver>\n"
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" getpkgdepname\t<string>\n"
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" getpkgdepversion\t<string>\n"
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" getpkgname\t\t<string>\n"
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" getpkgrevision\t<string>\n"
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" getpkgversion\t<string>\n"
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" pkgmatch\t\t<pkg-version> <pkg-pattern>\n"
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" version\t\t<pkgname>\n"
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" real-version\t<pkgname>\n"
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"\n"
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" Options shared by all actions:\n"
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" -C\t\tPath to xbps.conf file.\n"
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" -d\t\tDebugging messages to stderr.\n"
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" -r\t\t<rootdir>\n"
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" -V\t\tPrints the xbps release version\n"
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"\n"
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" Examples:\n"
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" $ xbps-uhelper cmpver 'foo-1.0_1' 'foo-2.1_1'\n"
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" $ xbps-uhelper getpkgdepname 'foo>=0'\n"
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" $ xbps-uhelper getpkgdepversion 'foo>=0'\n"
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" $ xbps-uhelper getpkgname foo-2.0_1\n"
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" $ xbps-uhelper getpkgrevision foo-2.0_1\n"
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" $ xbps-uhelper getpkgversion foo-2.0_1\n"
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" $ xbps-uhelper pkgmatch foo-1.0_1 'foo>=1.0'\n"
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" $ xbps-uhelper version pkgname\n");
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exit(EXIT_FAILURE);
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}
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static char *
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fname(char *url)
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{
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char *filename;
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if ((filename = strrchr(url, '>'))) {
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*filename = '\0';
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} else {
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filename = strrchr(url, '/');
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}
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if (filename == NULL)
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return NULL;
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return filename + 1;
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}
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int
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main(int argc, char **argv)
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{
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xbps_dictionary_t dict;
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struct xbps_handle xh;
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struct xferstat xfer;
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const char *version, *rootdir = NULL, *confdir = NULL;
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char pkgname[XBPS_NAME_SIZE], *filename;
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int flags = 0, c, rv = 0;
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const struct option longopts[] = {
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{ NULL, 0, NULL, 0 }
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};
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while ((c = getopt_long(argc, argv, "C:dr:V", longopts, NULL)) != -1) {
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switch (c) {
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case 'C':
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confdir = optarg;
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break;
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case 'r':
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/* To specify the root directory */
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rootdir = optarg;
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break;
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case 'd':
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flags |= XBPS_FLAG_DEBUG;
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break;
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case 'V':
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printf("%s\n", XBPS_RELVER);
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exit(EXIT_SUCCESS);
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case '?':
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default:
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usage();
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}
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}
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argc -= optind;
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argv += optind;
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if (argc < 1)
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usage();
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memset(&xh, 0, sizeof(xh));
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if ((strcmp(argv[0], "version") == 0) ||
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(strcmp(argv[0], "real-version") == 0) ||
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(strcmp(argv[0], "arch") == 0) ||
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(strcmp(argv[0], "fetch") == 0) ||
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(strcmp(argv[0], "getsystemdir") == 0)) {
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/*
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* Initialize libxbps.
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*/
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xh.fetch_cb = fetch_file_progress_cb;
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xh.fetch_cb_data = &xfer;
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xh.flags = flags;
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if (rootdir)
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xbps_strlcpy(xh.rootdir, rootdir, sizeof(xh.rootdir));
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if (confdir)
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xbps_strlcpy(xh.confdir, confdir, sizeof(xh.confdir));
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if ((rv = xbps_init(&xh)) != 0) {
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xbps_error_printf("xbps-uhelper: failed to "
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"initialize libxbps: %s.\n", strerror(rv));
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exit(EXIT_FAILURE);
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}
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}
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if (strcmp(argv[0], "version") == 0) {
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/* Prints version of an installed package */
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if (argc != 2)
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usage();
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if ((((dict = xbps_pkgdb_get_pkg(&xh, argv[1])) == NULL)) &&
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(((dict = xbps_pkgdb_get_virtualpkg(&xh, argv[1])) == NULL)))
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exit(EXIT_FAILURE);
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xbps_dictionary_get_cstring_nocopy(dict, "pkgver", &version);
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printf("%s\n", xbps_pkg_version(version));
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} else if (strcmp(argv[0], "real-version") == 0) {
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/* Prints version of an installed real package, not virtual */
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if (argc != 2)
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usage();
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if ((dict = xbps_pkgdb_get_pkg(&xh, argv[1])) == NULL)
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exit(EXIT_FAILURE);
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xbps_dictionary_get_cstring_nocopy(dict, "pkgver", &version);
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printf("%s\n", xbps_pkg_version(version));
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} else if (strcmp(argv[0], "getpkgversion") == 0) {
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/* Returns the version of a pkg string */
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if (argc != 2)
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usage();
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version = xbps_pkg_version(argv[1]);
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if (version == NULL) {
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fprintf(stderr,
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"Invalid string, expected <string>-<version>_<revision>\n");
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exit(EXIT_FAILURE);
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}
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printf("%s\n", version);
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} else if (strcmp(argv[0], "getpkgname") == 0) {
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/* Returns the name of a pkg string */
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if (argc != 2)
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usage();
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if (!xbps_pkg_name(pkgname, sizeof(pkgname), argv[1])) {
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fprintf(stderr,
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"Invalid string, expected <string>-<version>_<revision>\n");
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exit(EXIT_FAILURE);
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}
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printf("%s\n", pkgname);
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} else if (strcmp(argv[0], "getpkgrevision") == 0) {
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/* Returns the revision of a pkg string */
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if (argc != 2)
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usage();
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version = xbps_pkg_revision(argv[1]);
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if (version == NULL)
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exit(EXIT_SUCCESS);
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printf("%s\n", version);
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} else if (strcmp(argv[0], "getpkgdepname") == 0) {
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/* Returns the pkgname of a dependency */
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if (argc != 2)
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usage();
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if (!xbps_pkgpattern_name(pkgname, sizeof(pkgname), argv[1]))
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exit(EXIT_FAILURE);
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printf("%s\n", pkgname);
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} else if (strcmp(argv[0], "getpkgdepversion") == 0) {
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/* returns the version of a package pattern dependency */
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if (argc != 2)
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usage();
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version = xbps_pkgpattern_version(argv[1]);
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if (version == NULL)
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exit(EXIT_FAILURE);
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printf("%s\n", version);
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} else if (strcmp(argv[0], "binpkgver") == 0) {
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/* Returns the pkgver of a binpkg string */
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if (argc != 2)
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usage();
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version = xbps_binpkg_pkgver(argv[1]);
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if (version == NULL) {
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fprintf(stderr,
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"Invalid string, expected <pkgname>-<version>_<revision>.<arch>.xbps\n");
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exit(EXIT_FAILURE);
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}
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printf("%s\n", version);
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} else if (strcmp(argv[0], "binpkgarch") == 0) {
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/* Returns the arch of a binpkg string */
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if (argc != 2)
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usage();
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version = xbps_binpkg_arch(argv[1]);
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if (version == NULL) {
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fprintf(stderr,
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"Invalid string, expected <pkgname>-<version>_<revision>.<arch>.xbps\n");
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exit(EXIT_FAILURE);
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}
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printf("%s\n", version);
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} else if (strcmp(argv[0], "pkgmatch") == 0) {
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/* Matches a pkg with a pattern */
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if (argc != 3)
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usage();
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exit(xbps_pkgpattern_match(argv[1], argv[2]));
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} else if (strcmp(argv[0], "cmpver") == 0) {
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/* Compare two version strings, installed vs required */
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if (argc != 3)
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usage();
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exit(xbps_cmpver(argv[1], argv[2]));
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} else if (strcmp(argv[0], "arch") == 0) {
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/* returns the xbps native arch */
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if (argc != 1)
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usage();
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if (xh.native_arch[0] && xh.target_arch && strcmp(xh.native_arch, xh.target_arch)) {
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printf("%s\n", xh.target_arch);
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} else {
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printf("%s\n", xh.native_arch);
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}
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} else if (strcmp(argv[0], "getsystemdir") == 0) {
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/* returns the xbps system directory (<sharedir>/xbps.d) */
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if (argc != 1)
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usage();
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printf("%s\n", XBPS_SYSDEFCONF_PATH);
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} else if (strcmp(argv[0], "digest") == 0) {
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/* Prints SHA256 hashes for specified files */
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if (argc < 2)
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usage();
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for (int i = 1; i < argc; i++) {
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filename = xbps_file_hash(argv[i]);
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if (filename == NULL) {
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fprintf(stderr,
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"E: couldn't get hash for %s (%s)\n",
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argv[i], strerror(errno));
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exit(EXIT_FAILURE);
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}
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printf("%s\n", filename);
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}
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} else if (strcmp(argv[0], "fetch") == 0) {
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/* Fetch a file from specified URL */
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if (argc < 2)
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usage();
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for (int i = 1; i < argc; i++) {
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filename = fname(argv[i]);
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rv = xbps_fetch_file_dest(&xh, argv[i], filename, "v");
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if (rv == -1) {
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fprintf(stderr, "%s: %s\n", argv[i],
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xbps_fetch_error_string());
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} else if (rv == 0) {
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printf("%s: file is identical with remote.\n", argv[i]);
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} else {
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rv = 0;
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}
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}
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} else {
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usage();
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}
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exit(rv ? EXIT_FAILURE : EXIT_SUCCESS);
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}
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