/*- * Copyright (c) 2009-2014 Juan Romero Pardines. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include "xbps_api_impl.h" /* * Returns true if entry is a configuration file, false otherwise. */ int HIDDEN xbps_entry_is_a_conf_file(xbps_dictionary_t filesd, const char *entry_pname) { xbps_array_t array; xbps_dictionary_t d; const char *cffile; array = xbps_dictionary_get(filesd, "conf_files"); if (xbps_array_count(array) == 0) return false; for (unsigned int i = 0; i < xbps_array_count(array); i++) { d = xbps_array_get(array, i); xbps_dictionary_get_cstring_nocopy(d, "file", &cffile); if (strcmp(cffile, entry_pname) == 0) return true; } return false; } /* * Returns 1 if entry should be installed, 0 if don't or -1 on error. */ int HIDDEN xbps_entry_install_conf_file(struct xbps_handle *xhp, xbps_dictionary_t filesd, struct archive_entry *entry, const char *entry_pname, const char *pkgver, const char *pkgname) { xbps_dictionary_t forigd; xbps_object_t obj, obj2; xbps_object_iterator_t iter, iter2; const char *cffile, *sha256_new = NULL; char buf[PATH_MAX], *sha256_cur = NULL, *sha256_orig = NULL; int rv = 0; assert(xbps_object_type(filesd) == XBPS_TYPE_DICTIONARY); assert(entry != NULL); assert(entry_pname != NULL); assert(pkgver != NULL); iter = xbps_array_iter_from_dict(filesd, "conf_files"); if (iter == NULL) return -1; /* * Get original hash for the file from current * installed package. */ xbps_dbg_printf(xhp, "%s: processing conf_file %s\n", pkgver, entry_pname); forigd = xbps_pkgdb_get_pkg_metadata(xhp, pkgname); if (forigd == NULL) { xbps_dbg_printf(xhp, "%s: conf_file %s not currently " "installed\n", pkgver, entry_pname); rv = 1; goto out; } iter2 = xbps_array_iter_from_dict(forigd, "conf_files"); if (iter2 != NULL) { while ((obj2 = xbps_object_iterator_next(iter2))) { xbps_dictionary_get_cstring_nocopy(obj2, "file", &cffile); snprintf(buf, sizeof(buf), ".%s", cffile); if (strcmp(entry_pname, buf) == 0) { xbps_dictionary_get_cstring(obj2, "sha256", &sha256_orig); break; } } xbps_object_iterator_release(iter2); } /* * First case: original hash not found, install new file. */ if (sha256_orig == NULL) { xbps_dbg_printf(xhp, "%s: conf_file %s not installed\n", pkgver, entry_pname); rv = 1; goto out; } /* * Compare original, installed and new hash for current file. */ while ((obj = xbps_object_iterator_next(iter))) { xbps_dictionary_get_cstring_nocopy(obj, "file", &cffile); snprintf(buf, sizeof(buf), ".%s", cffile); if (strcmp(entry_pname, buf)) { continue; } sha256_cur = xbps_file_hash(buf); xbps_dictionary_get_cstring_nocopy(obj, "sha256", &sha256_new); if (sha256_cur == NULL) { if (errno == ENOENT) { /* * File not installed, install new one. */ xbps_dbg_printf(xhp, "%s: conf_file %s not " "installed\n", pkgver, entry_pname); rv = 1; break; } else { rv = -1; break; } } /* * Orig = X, Curr = X, New = X * * Keep file as is (no changes). */ if ((strcmp(sha256_orig, sha256_cur) == 0) && (strcmp(sha256_orig, sha256_new) == 0) && (strcmp(sha256_cur, sha256_new) == 0)) { xbps_dbg_printf(xhp, "%s: conf_file %s orig = X, " "cur = X, new = X\n", pkgver, entry_pname); rv = 0; break; /* * Orig = X, Curr = X, New = Y * * Install new file (installed file hasn't been modified). */ } else if ((strcmp(sha256_orig, sha256_cur) == 0) && (strcmp(sha256_orig, sha256_new)) && (strcmp(sha256_cur, sha256_new))) { xbps_set_cb_state(xhp, XBPS_STATE_CONFIG_FILE, 0, pkgver, "Updating configuration file `%s' provided " "by `%s'.", cffile, pkgver); rv = 1; break; /* * Orig = X, Curr = Y, New = X * * Keep installed file as is because it has been modified, * but new package doesn't contain new changes compared * to the original version. */ } else if ((strcmp(sha256_orig, sha256_new) == 0) && (strcmp(sha256_cur, sha256_new)) && (strcmp(sha256_orig, sha256_cur))) { xbps_set_cb_state(xhp, XBPS_STATE_CONFIG_FILE, 0, pkgver, "Keeping modified configuration file `%s'.", cffile); rv = 0; break; /* * Orig = X, Curr = Y, New = Y * * Keep file as is because changes made are compatible * with new version. */ } else if ((strcmp(sha256_cur, sha256_new) == 0) && (strcmp(sha256_orig, sha256_new)) && (strcmp(sha256_orig, sha256_cur))) { xbps_dbg_printf(xhp, "%s: conf_file %s orig = X, " "cur = Y, new = Y\n", pkgver, entry_pname); rv = 0; break; /* * Orig = X, Curr = Y, New = Z * * Install new file as .new- */ } else if ((strcmp(sha256_orig, sha256_cur)) && (strcmp(sha256_cur, sha256_new)) && (strcmp(sha256_orig, sha256_new))) { const char *version; version = xbps_pkg_version(pkgver); assert(version); snprintf(buf, sizeof(buf), ".%s.new-%s", cffile, version); xbps_set_cb_state(xhp, XBPS_STATE_CONFIG_FILE, 0, pkgver, "Installing new configuration file to `%s'.", buf); archive_entry_copy_pathname(entry, buf); rv = 1; break; } } out: if (sha256_orig) free(sha256_orig); if (sha256_cur) free(sha256_cur); xbps_object_iterator_release(iter); xbps_dbg_printf(xhp, "%s: conf_file %s returned %d\n", pkgver, entry_pname, rv); return rv; }