stuff

1 files changed, 0 insertions, 470 deletions

diff --git a/src/libsystemd/sd-hwdb/sd-hwdb.c b/src/libsystemd/sd-hwdb/sd-hwdb.c
deleted file mode 100644
index 062fa97b17..0000000000
--- a/src/libsystemd/sd-hwdb/sd-hwdb.c
+++ /dev/null
@@ -1,470 +0,0 @@
-/***
-  This file is part of systemd.
-
-  Copyright 2012 Kay Sievers <kay@vrfy.org>
-  Copyright 2008 Alan Jenkins <alan.christopher.jenkins@googlemail.com>
-  Copyright 2014 Tom Gundersen <teg@jklm.no>
-
-  systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU Lesser General Public License as published by
-  the Free Software Foundation; either version 2.1 of the License, or
-  (at your option) any later version.
-
-  systemd 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
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <errno.h>
-#include <fnmatch.h>
-#include <inttypes.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/mman.h>
-
-#include "sd-hwdb.h"
-
-#include "alloc-util.h"
-#include "fd-util.h"
-#include "hashmap.h"
-#include "hwdb-internal.h"
-#include "hwdb-util.h"
-#include "refcnt.h"
-#include "string-util.h"
-
-struct sd_hwdb {
-        RefCount n_ref;
-        int refcount;
-
-        FILE *f;
-        struct stat st;
-        union {
-                struct trie_header_f *head;
-                const char *map;
-        };
-
-        char *modalias;
-
-        OrderedHashmap *properties;
-        Iterator properties_iterator;
-        bool properties_modified;
-};
-
-struct linebuf {
-        char bytes[LINE_MAX];
-        size_t size;
-        size_t len;
-};
-
-static void linebuf_init(struct linebuf *buf) {
-        buf->size = 0;
-        buf->len = 0;
-}
-
-static const char *linebuf_get(struct linebuf *buf) {
-        if (buf->len + 1 >= sizeof(buf->bytes))
-                return NULL;
-        buf->bytes[buf->len] = '\0';
-        return buf->bytes;
-}
-
-static bool linebuf_add(struct linebuf *buf, const char *s, size_t len) {
-        if (buf->len + len >= sizeof(buf->bytes))
-                return false;
-        memcpy(buf->bytes + buf->len, s, len);
-        buf->len += len;
-        return true;
-}
-
-static bool linebuf_add_char(struct linebuf *buf, char c) {
-        if (buf->len + 1 >= sizeof(buf->bytes))
-                return false;
-        buf->bytes[buf->len++] = c;
-        return true;
-}
-
-static void linebuf_rem(struct linebuf *buf, size_t count) {
-        assert(buf->len >= count);
-        buf->len -= count;
-}
-
-static void linebuf_rem_char(struct linebuf *buf) {
-        linebuf_rem(buf, 1);
-}
-
-static const struct trie_child_entry_f *trie_node_children(sd_hwdb *hwdb, const struct trie_node_f *node) {
-        return (const struct trie_child_entry_f *)((const char *)node + le64toh(hwdb->head->node_size));
-}
-
-static const struct trie_value_entry_f *trie_node_values(sd_hwdb *hwdb, const struct trie_node_f *node) {
-        const char *base = (const char *)node;
-
-        base += le64toh(hwdb->head->node_size);
-        base += node->children_count * le64toh(hwdb->head->child_entry_size);
-        return (const struct trie_value_entry_f *)base;
-}
-
-static const struct trie_node_f *trie_node_from_off(sd_hwdb *hwdb, le64_t off) {
-        return (const struct trie_node_f *)(hwdb->map + le64toh(off));
-}
-
-static const char *trie_string(sd_hwdb *hwdb, le64_t off) {
-        return hwdb->map + le64toh(off);
-}
-
-static int trie_children_cmp_f(const void *v1, const void *v2) {
-        const struct trie_child_entry_f *n1 = v1;
-        const struct trie_child_entry_f *n2 = v2;
-
-        return n1->c - n2->c;
-}
-
-static const struct trie_node_f *node_lookup_f(sd_hwdb *hwdb, const struct trie_node_f *node, uint8_t c) {
-        struct trie_child_entry_f *child;
-        struct trie_child_entry_f search;
-
-        search.c = c;
-        child = bsearch(&search, trie_node_children(hwdb, node), node->children_count,
-                        le64toh(hwdb->head->child_entry_size), trie_children_cmp_f);
-        if (child)
-                return trie_node_from_off(hwdb, child->child_off);
-        return NULL;
-}
-
-static int hwdb_add_property(sd_hwdb *hwdb, const char *key, const char *value) {
-        int r;
-
-        assert(hwdb);
-        assert(key);
-        assert(value);
-
-        /*
-         * Silently ignore all properties which do not start with a
-         * space; future extensions might use additional prefixes.
-         */
-        if (key[0] != ' ')
-                return 0;
-
-        key++;
-
-        r = ordered_hashmap_ensure_allocated(&hwdb->properties, &string_hash_ops);
-        if (r < 0)
-                return r;
-
-        r = ordered_hashmap_replace(hwdb->properties, key, (char*)value);
-        if (r < 0)
-                return r;
-
-        hwdb->properties_modified = true;
-
-        return 0;
-}
-
-static int trie_fnmatch_f(sd_hwdb *hwdb, const struct trie_node_f *node, size_t p,
-                          struct linebuf *buf, const char *search) {
-        size_t len;
-        size_t i;
-        const char *prefix;
-        int err;
-
-        prefix = trie_string(hwdb, node->prefix_off);
-        len = strlen(prefix + p);
-        linebuf_add(buf, prefix + p, len);
-
-        for (i = 0; i < node->children_count; i++) {
-                const struct trie_child_entry_f *child = &trie_node_children(hwdb, node)[i];
-
-                linebuf_add_char(buf, child->c);
-                err = trie_fnmatch_f(hwdb, trie_node_from_off(hwdb, child->child_off), 0, buf, search);
-                if (err < 0)
-                        return err;
-                linebuf_rem_char(buf);
-        }
-
-        if (le64toh(node->values_count) && fnmatch(linebuf_get(buf), search, 0) == 0)
-                for (i = 0; i < le64toh(node->values_count); i++) {
-                        err = hwdb_add_property(hwdb, trie_string(hwdb, trie_node_values(hwdb, node)[i].key_off),
-                                                trie_string(hwdb, trie_node_values(hwdb, node)[i].value_off));
-                        if (err < 0)
-                                return err;
-                }
-
-        linebuf_rem(buf, len);
-        return 0;
-}
-
-static int trie_search_f(sd_hwdb *hwdb, const char *search) {
-        struct linebuf buf;
-        const struct trie_node_f *node;
-        size_t i = 0;
-        int err;
-
-        linebuf_init(&buf);
-
-        node = trie_node_from_off(hwdb, hwdb->head->nodes_root_off);
-        while (node) {
-                const struct trie_node_f *child;
-                size_t p = 0;
-
-                if (node->prefix_off) {
-                        uint8_t c;
-
-                        for (; (c = trie_string(hwdb, node->prefix_off)[p]); p++) {
-                                if (c == '*' || c == '?' || c == '[')
-                                        return trie_fnmatch_f(hwdb, node, p, &buf, search + i + p);
-                                if (c != search[i + p])
-                                        return 0;
-                        }
-                        i += p;
-                }
-
-                child = node_lookup_f(hwdb, node, '*');
-                if (child) {
-                        linebuf_add_char(&buf, '*');
-                        err = trie_fnmatch_f(hwdb, child, 0, &buf, search + i);
-                        if (err < 0)
-                                return err;
-                        linebuf_rem_char(&buf);
-                }
-
-                child = node_lookup_f(hwdb, node, '?');
-                if (child) {
-                        linebuf_add_char(&buf, '?');
-                        err = trie_fnmatch_f(hwdb, child, 0, &buf, search + i);
-                        if (err < 0)
-                                return err;
-                        linebuf_rem_char(&buf);
-                }
-
-                child = node_lookup_f(hwdb, node, '[');
-                if (child) {
-                        linebuf_add_char(&buf, '[');
-                        err = trie_fnmatch_f(hwdb, child, 0, &buf, search + i);
-                        if (err < 0)
-                                return err;
-                        linebuf_rem_char(&buf);
-                }
-
-                if (search[i] == '\0') {
-                        size_t n;
-
-                        for (n = 0; n < le64toh(node->values_count); n++) {
-                                err = hwdb_add_property(hwdb, trie_string(hwdb, trie_node_values(hwdb, node)[n].key_off),
-                                                        trie_string(hwdb, trie_node_values(hwdb, node)[n].value_off));
-                                if (err < 0)
-                                        return err;
-                        }
-                        return 0;
-                }
-
-                child = node_lookup_f(hwdb, node, search[i]);
-                node = child;
-                i++;
-        }
-        return 0;
-}
-
-static const char hwdb_bin_paths[] =
-        "/etc/systemd/hwdb/hwdb.bin\0"
-        "/etc/udev/hwdb.bin\0"
-        "/usr/lib/systemd/hwdb/hwdb.bin\0"
-#ifdef HAVE_SPLIT_USR
-        "/lib/systemd/hwdb/hwdb.bin\0"
-#endif
-        UDEVLIBEXECDIR "/hwdb.bin\0";
-
-_public_ int sd_hwdb_new(sd_hwdb **ret) {
-        _cleanup_(sd_hwdb_unrefp) sd_hwdb *hwdb = NULL;
-        const char *hwdb_bin_path;
-        const char sig[] = HWDB_SIG;
-
-        assert_return(ret, -EINVAL);
-
-        hwdb = new0(sd_hwdb, 1);
-        if (!hwdb)
-                return -ENOMEM;
-
-        hwdb->n_ref = REFCNT_INIT;
-
-        /* find hwdb.bin in hwdb_bin_paths */
-        NULSTR_FOREACH(hwdb_bin_path, hwdb_bin_paths) {
-                hwdb->f = fopen(hwdb_bin_path, "re");
-                if (hwdb->f)
-                        break;
-                else if (errno == ENOENT)
-                        continue;
-                else
-                        return log_debug_errno(errno, "error reading %s: %m", hwdb_bin_path);
-        }
-
-        if (!hwdb->f) {
-                log_debug("hwdb.bin does not exist, please run udevadm hwdb --update");
-                return -ENOENT;
-        }
-
-        if (fstat(fileno(hwdb->f), &hwdb->st) < 0 ||
-            (size_t)hwdb->st.st_size < offsetof(struct trie_header_f, strings_len) + 8)
-                return log_debug_errno(errno, "error reading %s: %m", hwdb_bin_path);
-
-        hwdb->map = mmap(0, hwdb->st.st_size, PROT_READ, MAP_SHARED, fileno(hwdb->f), 0);
-        if (hwdb->map == MAP_FAILED)
-                return log_debug_errno(errno, "error mapping %s: %m", hwdb_bin_path);
-
-        if (memcmp(hwdb->map, sig, sizeof(hwdb->head->signature)) != 0 ||
-            (size_t)hwdb->st.st_size != le64toh(hwdb->head->file_size)) {
-                log_debug("error recognizing the format of %s", hwdb_bin_path);
-                return -EINVAL;
-        }
-
-        log_debug("=== trie on-disk ===");
-        log_debug("tool version:          %"PRIu64, le64toh(hwdb->head->tool_version));
-        log_debug("file size:        %8"PRIi64" bytes", hwdb->st.st_size);
-        log_debug("header size       %8"PRIu64" bytes", le64toh(hwdb->head->header_size));
-        log_debug("strings           %8"PRIu64" bytes", le64toh(hwdb->head->strings_len));
-        log_debug("nodes             %8"PRIu64" bytes", le64toh(hwdb->head->nodes_len));
-
-        *ret = hwdb;
-        hwdb = NULL;
-
-        return 0;
-}
-
-_public_ sd_hwdb *sd_hwdb_ref(sd_hwdb *hwdb) {
-        assert_return(hwdb, NULL);
-
-        assert_se(REFCNT_INC(hwdb->n_ref) >= 2);
-
-        return hwdb;
-}
-
-_public_ sd_hwdb *sd_hwdb_unref(sd_hwdb *hwdb) {
-        if (hwdb && REFCNT_DEC(hwdb->n_ref) == 0) {
-                if (hwdb->map)
-                        munmap((void *)hwdb->map, hwdb->st.st_size);
-                safe_fclose(hwdb->f);
-                free(hwdb->modalias);
-                ordered_hashmap_free(hwdb->properties);
-                free(hwdb);
-        }
-
-        return NULL;
-}
-
-bool hwdb_validate(sd_hwdb *hwdb) {
-        bool found = false;
-        const char* p;
-        struct stat st;
-
-        if (!hwdb)
-                return false;
-        if (!hwdb->f)
-                return false;
-
-        /* if hwdb.bin doesn't exist anywhere, we need to update */
-        NULSTR_FOREACH(p, hwdb_bin_paths) {
-                if (stat(p, &st) >= 0) {
-                        found = true;
-                        break;
-                }
-        }
-        if (!found)
-                return true;
-
-        if (timespec_load(&hwdb->st.st_mtim) != timespec_load(&st.st_mtim))
-                return true;
-        return false;
-}
-
-static int properties_prepare(sd_hwdb *hwdb, const char *modalias) {
-        _cleanup_free_ char *mod = NULL;
-        int r;
-
-        assert(hwdb);
-        assert(modalias);
-
-        if (streq_ptr(modalias, hwdb->modalias))
-                return 0;
-
-        mod = strdup(modalias);
-        if (!mod)
-                return -ENOMEM;
-
-        ordered_hashmap_clear(hwdb->properties);
-
-        hwdb->properties_modified = true;
-
-        r = trie_search_f(hwdb, modalias);
-        if (r < 0)
-                return r;
-
-        free(hwdb->modalias);
-        hwdb->modalias = mod;
-        mod = NULL;
-
-        return 0;
-}
-
-_public_ int sd_hwdb_get(sd_hwdb *hwdb, const char *modalias, const char *key, const char **_value) {
-        const char *value;
-        int r;
-
-        assert_return(hwdb, -EINVAL);
-        assert_return(hwdb->f, -EINVAL);
-        assert_return(modalias, -EINVAL);
-        assert_return(_value, -EINVAL);
-
-        r = properties_prepare(hwdb, modalias);
-        if (r < 0)
-                return r;
-
-        value = ordered_hashmap_get(hwdb->properties, key);
-        if (!value)
-                return -ENOENT;
-
-        *_value = value;
-
-        return 0;
-}
-
-_public_ int sd_hwdb_seek(sd_hwdb *hwdb, const char *modalias) {
-        int r;
-
-        assert_return(hwdb, -EINVAL);
-        assert_return(hwdb->f, -EINVAL);
-        assert_return(modalias, -EINVAL);
-
-        r = properties_prepare(hwdb, modalias);
-        if (r < 0)
-                return r;
-
-        hwdb->properties_modified = false;
-        hwdb->properties_iterator = ITERATOR_FIRST;
-
-        return 0;
-}
-
-_public_ int sd_hwdb_enumerate(sd_hwdb *hwdb, const char **key, const char **value) {
-        const void *k;
-        void *v;
-
-        assert_return(hwdb, -EINVAL);
-        assert_return(key, -EINVAL);
-        assert_return(value, -EINVAL);
-
-        if (hwdb->properties_modified)
-                return -EAGAIN;
-
-        ordered_hashmap_iterate(hwdb->properties, &hwdb->properties_iterator, &v, &k);
-        if (!k)
-                return 0;
-
-        *key = k;
-        *value = v;
-
-        return 1;
-}