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Diffstat (limited to 'ldb/common/ldb_ldif.c')
-rw-r--r--ldb/common/ldb_ldif.c761
1 files changed, 0 insertions, 761 deletions
diff --git a/ldb/common/ldb_ldif.c b/ldb/common/ldb_ldif.c
deleted file mode 100644
index 619c10e1..00000000
--- a/ldb/common/ldb_ldif.c
+++ /dev/null
@@ -1,761 +0,0 @@
-/*
- ldb database library
-
- Copyright (C) Andrew Tridgell 2004
-
- ** NOTE! The following LGPL license applies to the ldb
- ** library. This does NOT imply that all of Samba is released
- ** under the LGPL
-
- This library 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 3 of the License, or (at your option) any later version.
-
- This library 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 this library; if not, see <http://www.gnu.org/licenses/>.
-*/
-
-/*
- * Name: ldb
- *
- * Component: ldif routines
- *
- * Description: ldif pack/unpack routines
- *
- * Author: Andrew Tridgell
- */
-
-/*
- see RFC2849 for the LDIF format definition
-*/
-
-#include "ldb_includes.h"
-#include "system/locale.h"
-
-/*
-
-*/
-static int ldb_read_data_file(void *mem_ctx, struct ldb_val *value)
-{
- struct stat statbuf;
- char *buf;
- int count, size, bytes;
- int ret;
- int f;
- const char *fname = (const char *)value->data;
-
- if (strncmp(fname, "file://", 7) != 0) {
- return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX;
- }
- fname += 7;
-
- f = open(fname, O_RDONLY);
- if (f == -1) {
- return -1;
- }
-
- if (fstat(f, &statbuf) != 0) {
- ret = -1;
- goto done;
- }
-
- if (statbuf.st_size == 0) {
- ret = -1;
- goto done;
- }
-
- value->data = (uint8_t *)talloc_size(mem_ctx, statbuf.st_size + 1);
- if (value->data == NULL) {
- ret = -1;
- goto done;
- }
- value->data[statbuf.st_size] = 0;
-
- count = 0;
- size = statbuf.st_size;
- buf = (char *)value->data;
- while (count < statbuf.st_size) {
- bytes = read(f, buf, size);
- if (bytes == -1) {
- talloc_free(value->data);
- ret = -1;
- goto done;
- }
- count += bytes;
- buf += bytes;
- size -= bytes;
- }
-
- value->length = statbuf.st_size;
- ret = statbuf.st_size;
-
-done:
- close(f);
- return ret;
-}
-
-/*
- this base64 decoder was taken from jitterbug (written by tridge).
- we might need to replace it with a new version
-*/
-int ldb_base64_decode(char *s)
-{
- const char *b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
- int bit_offset=0, byte_offset, idx, i, n;
- uint8_t *d = (uint8_t *)s;
- char *p=NULL;
-
- n=i=0;
-
- while (*s && (p=strchr(b64,*s))) {
- idx = (int)(p - b64);
- byte_offset = (i*6)/8;
- bit_offset = (i*6)%8;
- d[byte_offset] &= ~((1<<(8-bit_offset))-1);
- if (bit_offset < 3) {
- d[byte_offset] |= (idx << (2-bit_offset));
- n = byte_offset+1;
- } else {
- d[byte_offset] |= (idx >> (bit_offset-2));
- d[byte_offset+1] = 0;
- d[byte_offset+1] |= (idx << (8-(bit_offset-2))) & 0xFF;
- n = byte_offset+2;
- }
- s++; i++;
- }
- if (bit_offset >= 3) {
- n--;
- }
-
- if (*s && !p) {
- /* the only termination allowed */
- if (*s != '=') {
- return -1;
- }
- }
-
- /* null terminate */
- d[n] = 0;
- return n;
-}
-
-
-/*
- encode as base64
- caller frees
-*/
-char *ldb_base64_encode(void *mem_ctx, const char *buf, int len)
-{
- const char *b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
- int bit_offset, byte_offset, idx, i;
- const uint8_t *d = (const uint8_t *)buf;
- int bytes = (len*8 + 5)/6, pad_bytes = (bytes % 4) ? 4 - (bytes % 4) : 0;
- char *out;
-
- out = talloc_array(mem_ctx, char, bytes+pad_bytes+1);
- if (!out) return NULL;
-
- for (i=0;i<bytes;i++) {
- byte_offset = (i*6)/8;
- bit_offset = (i*6)%8;
- if (bit_offset < 3) {
- idx = (d[byte_offset] >> (2-bit_offset)) & 0x3F;
- } else {
- idx = (d[byte_offset] << (bit_offset-2)) & 0x3F;
- if (byte_offset+1 < len) {
- idx |= (d[byte_offset+1] >> (8-(bit_offset-2)));
- }
- }
- out[i] = b64[idx];
- }
-
- for (;i<bytes+pad_bytes;i++)
- out[i] = '=';
- out[i] = 0;
-
- return out;
-}
-
-/*
- see if a buffer should be base64 encoded
-*/
-int ldb_should_b64_encode(const struct ldb_val *val)
-{
- unsigned int i;
- uint8_t *p = val->data;
-
- if (val->length == 0) {
- return 0;
- }
-
- if (p[0] == ' ' || p[0] == ':') {
- return 1;
- }
-
- for (i=0; i<val->length; i++) {
- if (!isprint(p[i]) || p[i] == '\n') {
- return 1;
- }
- }
- return 0;
-}
-
-/* this macro is used to handle the return checking on fprintf_fn() */
-#define CHECK_RET do { if (ret < 0) return ret; total += ret; } while (0)
-
-/*
- write a line folded string onto a file
-*/
-static int fold_string(int (*fprintf_fn)(void *, const char *, ...), void *private_data,
- const char *buf, size_t length, int start_pos)
-{
- unsigned int i;
- int total=0, ret;
-
- for (i=0;i<length;i++) {
- ret = fprintf_fn(private_data, "%c", buf[i]);
- CHECK_RET;
- if (i != (length-1) && (i + start_pos) % 77 == 0) {
- ret = fprintf_fn(private_data, "\n ");
- CHECK_RET;
- }
- }
-
- return total;
-}
-
-#undef CHECK_RET
-
-/*
- encode as base64 to a file
-*/
-static int base64_encode_f(struct ldb_context *ldb,
- int (*fprintf_fn)(void *, const char *, ...),
- void *private_data,
- const char *buf, int len, int start_pos)
-{
- char *b = ldb_base64_encode(ldb, buf, len);
- int ret;
-
- if (!b) {
- return -1;
- }
-
- ret = fold_string(fprintf_fn, private_data, b, strlen(b), start_pos);
-
- talloc_free(b);
- return ret;
-}
-
-
-static const struct {
- const char *name;
- enum ldb_changetype changetype;
-} ldb_changetypes[] = {
- {"add", LDB_CHANGETYPE_ADD},
- {"delete", LDB_CHANGETYPE_DELETE},
- {"modify", LDB_CHANGETYPE_MODIFY},
- {NULL, 0}
-};
-
-/* this macro is used to handle the return checking on fprintf_fn() */
-#define CHECK_RET do { if (ret < 0) { talloc_free(mem_ctx); return ret; } total += ret; } while (0)
-
-/*
- write to ldif, using a caller supplied write method
-*/
-int ldb_ldif_write(struct ldb_context *ldb,
- int (*fprintf_fn)(void *, const char *, ...),
- void *private_data,
- const struct ldb_ldif *ldif)
-{
- TALLOC_CTX *mem_ctx;
- unsigned int i, j;
- int total=0, ret;
- char *p;
- const struct ldb_message *msg;
-
- mem_ctx = talloc_named_const(NULL, 0, "ldb_ldif_write");
-
- msg = ldif->msg;
- p = ldb_dn_get_extended_linearized(mem_ctx, msg->dn, 1);
- ret = fprintf_fn(private_data, "dn: %s\n", p);
- talloc_free(p);
- CHECK_RET;
-
- if (ldif->changetype != LDB_CHANGETYPE_NONE) {
- for (i=0;ldb_changetypes[i].name;i++) {
- if (ldb_changetypes[i].changetype == ldif->changetype) {
- break;
- }
- }
- if (!ldb_changetypes[i].name) {
- ldb_debug(ldb, LDB_DEBUG_ERROR, "Error: Invalid ldif changetype %d\n",
- ldif->changetype);
- talloc_free(mem_ctx);
- return -1;
- }
- ret = fprintf_fn(private_data, "changetype: %s\n", ldb_changetypes[i].name);
- CHECK_RET;
- }
-
- for (i=0;i<msg->num_elements;i++) {
- const struct ldb_schema_attribute *a;
-
- a = ldb_schema_attribute_by_name(ldb, msg->elements[i].name);
-
- if (ldif->changetype == LDB_CHANGETYPE_MODIFY) {
- switch (msg->elements[i].flags & LDB_FLAG_MOD_MASK) {
- case LDB_FLAG_MOD_ADD:
- fprintf_fn(private_data, "add: %s\n",
- msg->elements[i].name);
- break;
- case LDB_FLAG_MOD_DELETE:
- fprintf_fn(private_data, "delete: %s\n",
- msg->elements[i].name);
- break;
- case LDB_FLAG_MOD_REPLACE:
- fprintf_fn(private_data, "replace: %s\n",
- msg->elements[i].name);
- break;
- }
- }
-
- for (j=0;j<msg->elements[i].num_values;j++) {
- struct ldb_val v;
- ret = a->syntax->ldif_write_fn(ldb, mem_ctx, &msg->elements[i].values[j], &v);
- if (ret != LDB_SUCCESS) {
- v = msg->elements[i].values[j];
- }
- if (ret != LDB_SUCCESS || ldb_should_b64_encode(&v)) {
- ret = fprintf_fn(private_data, "%s:: ",
- msg->elements[i].name);
- CHECK_RET;
- ret = base64_encode_f(ldb, fprintf_fn, private_data,
- (char *)v.data, v.length,
- strlen(msg->elements[i].name)+3);
- CHECK_RET;
- ret = fprintf_fn(private_data, "\n");
- CHECK_RET;
- } else {
- ret = fprintf_fn(private_data, "%s: ", msg->elements[i].name);
- CHECK_RET;
- ret = fold_string(fprintf_fn, private_data,
- (char *)v.data, v.length,
- strlen(msg->elements[i].name)+2);
- CHECK_RET;
- ret = fprintf_fn(private_data, "\n");
- CHECK_RET;
- }
- if (v.data != msg->elements[i].values[j].data) {
- talloc_free(v.data);
- }
- }
- if (ldif->changetype == LDB_CHANGETYPE_MODIFY) {
- fprintf_fn(private_data, "-\n");
- }
- }
- ret = fprintf_fn(private_data,"\n");
- CHECK_RET;
-
- return total;
-}
-
-#undef CHECK_RET
-
-
-/*
- pull a ldif chunk, which is defined as a piece of data ending in \n\n or EOF
- this routine removes any RFC2849 continuations and comments
-
- caller frees
-*/
-static char *next_chunk(struct ldb_context *ldb,
- int (*fgetc_fn)(void *), void *private_data)
-{
- size_t alloc_size=0, chunk_size = 0;
- char *chunk = NULL;
- int c;
- int in_comment = 0;
-
- while ((c = fgetc_fn(private_data)) != EOF) {
- if (chunk_size+1 >= alloc_size) {
- char *c2;
- alloc_size += 1024;
- c2 = talloc_realloc(ldb, chunk, char, alloc_size);
- if (!c2) {
- talloc_free(chunk);
- errno = ENOMEM;
- return NULL;
- }
- chunk = c2;
- }
-
- if (in_comment) {
- if (c == '\n') {
- in_comment = 0;
- }
- continue;
- }
-
- /* handle continuation lines - see RFC2849 */
- if (c == ' ' && chunk_size > 1 && chunk[chunk_size-1] == '\n') {
- chunk_size--;
- continue;
- }
-
- /* chunks are terminated by a double line-feed */
- if (c == '\n' && chunk_size > 0 && chunk[chunk_size-1] == '\n') {
- chunk[chunk_size-1] = 0;
- return chunk;
- }
-
- if (c == '#' && (chunk_size == 0 || chunk[chunk_size-1] == '\n')) {
- in_comment = 1;
- continue;
- }
-
- /* ignore leading blank lines */
- if (chunk_size == 0 && c == '\n') {
- continue;
- }
-
- chunk[chunk_size++] = c;
- }
-
- if (chunk) {
- chunk[chunk_size] = 0;
- }
-
- return chunk;
-}
-
-
-/* simple ldif attribute parser */
-static int next_attr(void *mem_ctx, char **s, const char **attr, struct ldb_val *value)
-{
- char *p;
- int base64_encoded = 0;
- int binary_file = 0;
-
- if (strncmp(*s, "-\n", 2) == 0) {
- value->length = 0;
- *attr = "-";
- *s += 2;
- return 0;
- }
-
- p = strchr(*s, ':');
- if (!p) {
- return -1;
- }
-
- *p++ = 0;
-
- if (*p == ':') {
- base64_encoded = 1;
- p++;
- }
-
- if (*p == '<') {
- binary_file = 1;
- p++;
- }
-
- *attr = *s;
-
- while (*p == ' ' || *p == '\t') {
- p++;
- }
-
- value->data = (uint8_t *)p;
-
- p = strchr(p, '\n');
-
- if (!p) {
- value->length = strlen((char *)value->data);
- *s = ((char *)value->data) + value->length;
- } else {
- value->length = p - (char *)value->data;
- *s = p+1;
- *p = 0;
- }
-
- if (base64_encoded) {
- int len = ldb_base64_decode((char *)value->data);
- if (len == -1) {
- /* it wasn't valid base64 data */
- return -1;
- }
- value->length = len;
- }
-
- if (binary_file) {
- int len = ldb_read_data_file(mem_ctx, value);
- if (len == -1) {
- /* an error occured hile trying to retrieve the file */
- return -1;
- }
- }
-
- return 0;
-}
-
-
-/*
- free a message from a ldif_read
-*/
-void ldb_ldif_read_free(struct ldb_context *ldb, struct ldb_ldif *ldif)
-{
- talloc_free(ldif);
-}
-
-/*
- read from a LDIF source, creating a ldb_message
-*/
-struct ldb_ldif *ldb_ldif_read(struct ldb_context *ldb,
- int (*fgetc_fn)(void *), void *private_data)
-{
- struct ldb_ldif *ldif;
- struct ldb_message *msg;
- const char *attr=NULL;
- char *chunk=NULL, *s;
- struct ldb_val value;
- unsigned flags = 0;
-
- value.data = NULL;
-
- ldif = talloc(ldb, struct ldb_ldif);
- if (!ldif) return NULL;
-
- ldif->msg = talloc(ldif, struct ldb_message);
- if (ldif->msg == NULL) {
- talloc_free(ldif);
- return NULL;
- }
-
- ldif->changetype = LDB_CHANGETYPE_NONE;
- msg = ldif->msg;
-
- msg->dn = NULL;
- msg->elements = NULL;
- msg->num_elements = 0;
-
- chunk = next_chunk(ldb, fgetc_fn, private_data);
- if (!chunk) {
- goto failed;
- }
- talloc_steal(ldif, chunk);
-
- s = chunk;
-
- if (next_attr(ldif, &s, &attr, &value) != 0) {
- goto failed;
- }
-
- /* first line must be a dn */
- if (ldb_attr_cmp(attr, "dn") != 0) {
- ldb_debug(ldb, LDB_DEBUG_ERROR, "Error: First line of ldif must be a dn not '%s'\n",
- attr);
- goto failed;
- }
-
- msg->dn = ldb_dn_from_ldb_val(msg, ldb, &value);
-
- if ( ! ldb_dn_validate(msg->dn)) {
- ldb_debug(ldb, LDB_DEBUG_ERROR, "Error: Unable to parse dn '%s'\n",
- (char *)value.data);
- goto failed;
- }
-
- while (next_attr(ldif, &s, &attr, &value) == 0) {
- const struct ldb_schema_attribute *a;
- struct ldb_message_element *el;
- int ret, empty = 0;
-
- if (ldb_attr_cmp(attr, "changetype") == 0) {
- int i;
- for (i=0;ldb_changetypes[i].name;i++) {
- if (ldb_attr_cmp((char *)value.data, ldb_changetypes[i].name) == 0) {
- ldif->changetype = ldb_changetypes[i].changetype;
- break;
- }
- }
- if (!ldb_changetypes[i].name) {
- ldb_debug(ldb, LDB_DEBUG_ERROR,
- "Error: Bad ldif changetype '%s'\n",(char *)value.data);
- }
- flags = 0;
- continue;
- }
-
- if (ldb_attr_cmp(attr, "add") == 0) {
- flags = LDB_FLAG_MOD_ADD;
- empty = 1;
- }
- if (ldb_attr_cmp(attr, "delete") == 0) {
- flags = LDB_FLAG_MOD_DELETE;
- empty = 1;
- }
- if (ldb_attr_cmp(attr, "replace") == 0) {
- flags = LDB_FLAG_MOD_REPLACE;
- empty = 1;
- }
- if (ldb_attr_cmp(attr, "-") == 0) {
- flags = 0;
- continue;
- }
-
- if (empty) {
- if (ldb_msg_add_empty(msg, (char *)value.data, flags, NULL) != 0) {
- goto failed;
- }
- continue;
- }
-
- el = &msg->elements[msg->num_elements-1];
-
- a = ldb_schema_attribute_by_name(ldb, attr);
-
- if (msg->num_elements > 0 && ldb_attr_cmp(attr, el->name) == 0 &&
- flags == el->flags) {
- /* its a continuation */
- el->values =
- talloc_realloc(msg->elements, el->values,
- struct ldb_val, el->num_values+1);
- if (!el->values) {
- goto failed;
- }
- ret = a->syntax->ldif_read_fn(ldb, ldif, &value, &el->values[el->num_values]);
- if (ret != 0) {
- goto failed;
- }
- if (value.length == 0) {
- ldb_debug(ldb, LDB_DEBUG_ERROR,
- "Error: Attribute value cannot be empty for attribute '%s'\n", el->name);
- goto failed;
- }
- if (value.data != el->values[el->num_values].data) {
- talloc_steal(el->values, el->values[el->num_values].data);
- }
- el->num_values++;
- } else {
- /* its a new attribute */
- msg->elements = talloc_realloc(ldif, msg->elements,
- struct ldb_message_element,
- msg->num_elements+1);
- if (!msg->elements) {
- goto failed;
- }
- el = &msg->elements[msg->num_elements];
- el->flags = flags;
- el->name = talloc_strdup(msg->elements, attr);
- el->values = talloc(msg->elements, struct ldb_val);
- if (!el->values || !el->name) {
- goto failed;
- }
- el->num_values = 1;
- ret = a->syntax->ldif_read_fn(ldb, ldif, &value, &el->values[0]);
- if (ret != 0) {
- goto failed;
- }
- if (value.data != el->values[0].data) {
- talloc_steal(el->values, el->values[0].data);
- }
- msg->num_elements++;
- }
- }
-
- return ldif;
-
-failed:
- talloc_free(ldif);
- return NULL;
-}
-
-
-
-/*
- a wrapper around ldif_read() for reading from FILE*
-*/
-struct ldif_read_file_state {
- FILE *f;
-};
-
-static int fgetc_file(void *private_data)
-{
- struct ldif_read_file_state *state =
- (struct ldif_read_file_state *)private_data;
- return fgetc(state->f);
-}
-
-struct ldb_ldif *ldb_ldif_read_file(struct ldb_context *ldb, FILE *f)
-{
- struct ldif_read_file_state state;
- state.f = f;
- return ldb_ldif_read(ldb, fgetc_file, &state);
-}
-
-
-/*
- a wrapper around ldif_read() for reading from const char*
-*/
-struct ldif_read_string_state {
- const char *s;
-};
-
-static int fgetc_string(void *private_data)
-{
- struct ldif_read_string_state *state =
- (struct ldif_read_string_state *)private_data;
- if (state->s[0] != 0) {
- return *state->s++;
- }
- return EOF;
-}
-
-struct ldb_ldif *ldb_ldif_read_string(struct ldb_context *ldb, const char **s)
-{
- struct ldif_read_string_state state;
- struct ldb_ldif *ldif;
- state.s = *s;
- ldif = ldb_ldif_read(ldb, fgetc_string, &state);
- *s = state.s;
- return ldif;
-}
-
-
-/*
- wrapper around ldif_write() for a file
-*/
-struct ldif_write_file_state {
- FILE *f;
-};
-
-static int fprintf_file(void *private_data, const char *fmt, ...) PRINTF_ATTRIBUTE(2, 3);
-
-static int fprintf_file(void *private_data, const char *fmt, ...)
-{
- struct ldif_write_file_state *state =
- (struct ldif_write_file_state *)private_data;
- int ret;
- va_list ap;
-
- va_start(ap, fmt);
- ret = vfprintf(state->f, fmt, ap);
- va_end(ap);
- return ret;
-}
-
-int ldb_ldif_write_file(struct ldb_context *ldb, FILE *f, const struct ldb_ldif *ldif)
-{
- struct ldif_write_file_state state;
- state.f = f;
- return ldb_ldif_write(ldb, fprintf_file, &state, ldif);
-}
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