/* fetch.c - Alpine Package Keeper (APK) * * Copyright (C) 2005-2008 Natanael Copa * Copyright (C) 2008 Timo Teräs * All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published * by the Free Software Foundation. See http://www.gnu.org/ for details. */ #include #include #include #include #include #include #include "apk_applet.h" #include "apk_database.h" #include "apk_state.h" #include "apk_io.h" #define FETCH_RECURSIVE 1 #define FETCH_STDOUT 2 #define FETCH_LINK 4 struct fetch_ctx { unsigned int flags; int outdir_fd; }; static int cup(void) { /* compressed/uncompressed size is 259/1213 */ static unsigned char z[] = { 0x78,0x9c,0x9d,0x94,0x3d,0x8e,0xc4,0x20,0x0c,0x85,0xfb,0x9c, 0xc2,0x72,0x43,0x46,0x8a,0x4d,0x3f,0x67,0x89,0x64,0x77,0x2b, 0x6d,0xbb,0x6d,0x0e,0x3f,0xc6,0x84,0x4d,0x08,0x84,0x55,0xd6, 0xa2,0xe0,0xef,0x7b,0x36,0xe1,0x11,0x80,0x6e,0xcc,0x53,0x7f, 0x3e,0xc5,0xeb,0xcf,0x1d,0x20,0x22,0xcc,0x3c,0x53,0x8e,0x17, 0xd9,0x80,0x6d,0xee,0x0e,0x61,0x42,0x3c,0x8b,0xcf,0xc7,0x12, 0x22,0x71,0x8b,0x31,0x05,0xd5,0xb0,0x11,0x4b,0xa7,0x32,0x2f, 0x80,0x69,0x6b,0xb0,0x98,0x40,0xe2,0xcd,0xba,0x6a,0xba,0xe4, 0x65,0xed,0x61,0x23,0x44,0xb5,0x95,0x06,0x8b,0xde,0x6c,0x61, 0x70,0xde,0x0e,0xb6,0xed,0xc4,0x43,0x0c,0x56,0x6f,0x8f,0x31, 0xd0,0x35,0xb5,0xc7,0x58,0x06,0xff,0x81,0x49,0x84,0xb8,0x0e, 0xb1,0xd8,0xc1,0x66,0x31,0x0e,0x46,0x5c,0x43,0xc9,0xef,0xe5, 0xdc,0x63,0xb1,0xdc,0x67,0x6d,0x31,0xb3,0xc9,0x69,0x74,0x87, 0xc7,0xa3,0x1b,0x6a,0xb3,0xbd,0x2f,0x3b,0xd5,0x0c,0x57,0x3b, 0xce,0x7c,0x5e,0xe5,0x48,0xd0,0x48,0x01,0x92,0x49,0x8b,0xf7, 0xfc,0x58,0x67,0xb3,0xf7,0x14,0x20,0x5c,0x4c,0x9e,0xcc,0xeb, 0x78,0x7e,0x64,0xa6,0xa1,0xf5,0xb2,0x70,0x38,0x09,0x7c,0x7f, 0xfd,0xc0,0x8a,0x4e,0xc8,0x55,0xe8,0x12,0xe2,0x9f,0x1a,0xb1, 0xb9,0x82,0x52,0x02,0x7a,0xe5,0xf9,0xd9,0x88,0x47,0x79,0x3b, 0x46,0x61,0x27,0xf9,0x51,0xb1,0x17,0xb0,0x2c,0x0e,0xd5,0x39, 0x2d,0x96,0x25,0x27,0xd6,0xd1,0x3f,0xa5,0x08,0xe1,0x9e,0x4e, 0xa7,0xe9,0x03,0xb1,0x0a,0xb6,0x75 }; unsigned char buf[1213]; unsigned long len = sizeof(buf); uncompress(buf, &len, z, sizeof(z)); write(STDOUT_FILENO, buf, len); return 0; } static int fetch_parse(void *ctx, struct apk_db_options *dbopts, int optch, int optindex, const char *optarg) { struct fetch_ctx *fctx = (struct fetch_ctx *) ctx; switch (optch) { case 'R': fctx->flags |= FETCH_RECURSIVE; break; case 's': fctx->flags |= FETCH_STDOUT; break; case 'L': fctx->flags |= FETCH_LINK; break; case 'o': fctx->outdir_fd = openat(AT_FDCWD, optarg, O_RDONLY); break; default: return -1; } return 0; } static int fetch_package(struct fetch_ctx *fctx, struct apk_database *db, struct apk_package *pkg) { struct apk_istream *is; struct apk_repository *repo; char pkgfile[PATH_MAX], url[PATH_MAX]; int r, fd; apk_pkg_format_plain(pkg, APK_BLOB_BUF(pkgfile)); if (!(fctx->flags & FETCH_STDOUT)) { struct apk_file_info fi; if (apk_file_get_info(fctx->outdir_fd, pkgfile, APK_CHECKSUM_NONE, &fi) == 0 && fi.size == pkg->size) return 0; } apk_message("Downloading %s-%s", pkg->name->name, pkg->version); repo = apk_db_select_repo(db, pkg); if (repo == NULL) { apk_error("%s-%s: package is not currently available", pkg->name->name, pkg->version); return -1; } if (apk_flags & APK_SIMULATE) return 0; snprintf(url, sizeof(url), "%s%s%s", repo->url, repo->url[strlen(repo->url)-1] == '/' ? "" : "/", pkgfile); if (fctx->flags & FETCH_STDOUT) { fd = STDOUT_FILENO; } else { if ((fctx->flags & FETCH_LINK) && apk_url_local_file(url)) { if (linkat(AT_FDCWD, url, fctx->outdir_fd, pkgfile, AT_SYMLINK_FOLLOW) == 0) return 0; } fd = openat(fctx->outdir_fd, pkgfile, O_CREAT|O_RDWR|O_TRUNC, 0644); if (fd < 0) { apk_error("%s: %s", pkgfile, strerror(errno)); return -1; } } is = apk_istream_from_url(url); if (is == NULL) { apk_error("Unable to download '%s'", url); return -1; } r = apk_istream_splice(is, fd, pkg->size, NULL, NULL); is->close(is); if (fd != STDOUT_FILENO) close(fd); if (r != pkg->size) { apk_error("Unable to download '%s'", url); unlinkat(fctx->outdir_fd, pkgfile, 0); return -1; } return 0; } static int fetch_main(void *ctx, struct apk_database *db, int argc, char **argv) { struct fetch_ctx *fctx = (struct fetch_ctx *) ctx; int r = 0, i, j; if (fctx->outdir_fd == 0) fctx->outdir_fd = AT_FDCWD; if ((argc > 0) && (strcmp(argv[0], "coffee") == 0)) { if (apk_flags & APK_FORCE) return cup(); apk_message("Go and fetch your own coffee."); return 0; } for (i = 0; i < argc; i++) { struct apk_dependency dep = (struct apk_dependency) { .name = apk_db_get_name(db, APK_BLOB_STR(argv[i])), .result_mask = APK_DEPMASK_REQUIRE, }; if (fctx->flags & FETCH_RECURSIVE) { struct apk_state *state; struct apk_change *change; state = apk_state_new(db); if (state == NULL) goto err; r = apk_state_lock_dependency(state, &dep); if (r != 0) { apk_state_unref(state); apk_error("Unable to install '%s'", dep.name->name); goto err; } list_for_each_entry(change, &state->change_list_head, change_list) { r = fetch_package(fctx, db, change->newpkg); if (r != 0) goto err; } apk_state_unref(state); } else if (dep.name->pkgs != NULL) { struct apk_package *pkg = NULL; for (j = 0; j < dep.name->pkgs->num; j++) if (pkg == NULL || apk_pkg_version_compare(dep.name->pkgs->item[j], pkg) == APK_VERSION_GREATER) pkg = dep.name->pkgs->item[j]; r = fetch_package(fctx, db, pkg); if (r != 0) goto err; } else { apk_message("Unable to get '%s'", dep.name->name); r = -1; break; } } err: return r; } static struct apk_option fetch_options[] = { { 'L', "link", "Create hard links if possible" }, { 'R', "recursive", "Fetch the PACKAGE and all it's dependencies" }, { 's', "stdout", "Dump the .apk to stdout (incompatible with -o and -R)" }, { 'o', "output", "Directory to place the PACKAGEs to", required_argument, "DIR" }, }; static struct apk_applet apk_fetch = { .name = "fetch", .help = "Download PACKAGEs from repositories to a local directory from " "which a local mirror repository can be created.", .arguments = "PACKAGE...", .open_flags = APK_OPENF_READ|APK_OPENF_NO_STATE, .context_size = sizeof(struct fetch_ctx), .num_options = ARRAY_SIZE(fetch_options), .options = fetch_options, .parse = fetch_parse, .main = fetch_main, }; APK_DEFINE_APPLET(apk_fetch);