1 /* $FreeBSD$ */ 2 /* $NetBSD: citrus_pivot_factory.c,v 1.7 2009/04/12 14:20:19 lukem Exp $ */ 3 4 /*- 5 * Copyright (c)2003 Citrus Project, 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 #include <sys/queue.h> 32 33 #include <assert.h> 34 #include <ctype.h> 35 #include <errno.h> 36 #include <limits.h> 37 #include <stdio.h> 38 #include <stdlib.h> 39 #include <string.h> 40 41 #include "citrus_namespace.h" 42 #include "citrus_region.h" 43 #include "citrus_bcs.h" 44 #include "citrus_db_factory.h" 45 #include "citrus_db_hash.h" 46 #include "citrus_pivot_file.h" 47 #include "citrus_pivot_factory.h" 48 49 struct src_entry { 50 char *se_name; 51 struct _citrus_db_factory *se_df; 52 STAILQ_ENTRY(src_entry) se_entry; 53 }; 54 STAILQ_HEAD(src_head, src_entry); 55 56 static int 57 find_src(struct src_head *sh, struct src_entry **rse, const char *name) 58 { 59 int ret; 60 struct src_entry *se; 61 62 STAILQ_FOREACH(se, sh, se_entry) { 63 if (_bcs_strcasecmp(se->se_name, name) == 0) { 64 *rse = se; 65 return (0); 66 } 67 } 68 se = malloc(sizeof(*se)); 69 if (se == NULL) 70 return (errno); 71 se->se_name = strdup(name); 72 if (se->se_name == NULL) { 73 ret = errno; 74 free(se); 75 return (ret); 76 } 77 ret = _db_factory_create(&se->se_df, &_db_hash_std, NULL); 78 if (ret) { 79 free(se->se_name); 80 free(se); 81 return (ret); 82 } 83 STAILQ_INSERT_TAIL(sh, se, se_entry); 84 *rse = se; 85 86 return (0); 87 } 88 89 static void 90 free_src(struct src_head *sh) 91 { 92 struct src_entry *se; 93 94 while ((se = STAILQ_FIRST(sh)) != NULL) { 95 STAILQ_REMOVE_HEAD(sh, se_entry); 96 _db_factory_free(se->se_df); 97 free(se->se_name); 98 free(se); 99 } 100 } 101 102 103 #define T_COMM '#' 104 static int 105 convert_line(struct src_head *sh, const char *line, size_t len) 106 { 107 struct src_entry *se; 108 const char *p; 109 char key1[LINE_MAX], key2[LINE_MAX], data[LINE_MAX]; 110 char *ep; 111 uint32_t val; 112 int ret; 113 114 se = NULL; 115 116 /* cut off trailing comment */ 117 p = memchr(line, T_COMM, len); 118 if (p) 119 len = p - line; 120 121 /* key1 */ 122 line = _bcs_skip_ws_len(line, &len); 123 if (len == 0) 124 return (0); 125 p = _bcs_skip_nonws_len(line, &len); 126 if (p == line) 127 return (0); 128 snprintf(key1, sizeof(key1), "%.*s", (int)(p - line), line); 129 130 /* key2 */ 131 line = _bcs_skip_ws_len(p, &len); 132 if (len == 0) 133 return (0); 134 p = _bcs_skip_nonws_len(line, &len); 135 if (p == line) 136 return (0); 137 snprintf(key2, sizeof(key2), "%.*s", (int)(p - line), line); 138 139 /* data */ 140 line = _bcs_skip_ws_len(p, &len); 141 _bcs_trunc_rws_len(line, &len); 142 snprintf(data, sizeof(data), "%.*s", (int)len, line); 143 val = strtoul(data, &ep, 0); 144 if (*ep != '\0') 145 return (EFTYPE); 146 147 /* insert to DB */ 148 ret = find_src(sh, &se, key1); 149 if (ret) 150 return (ret); 151 152 return (_db_factory_add32_by_s(se->se_df, key2, val)); 153 } 154 155 static int 156 dump_db(struct src_head *sh, struct _region *r) 157 { 158 struct _db_factory *df; 159 struct src_entry *se; 160 struct _region subr; 161 void *ptr; 162 size_t size; 163 int ret; 164 165 ret = _db_factory_create(&df, &_db_hash_std, NULL); 166 if (ret) 167 return (ret); 168 169 STAILQ_FOREACH(se, sh, se_entry) { 170 size = _db_factory_calc_size(se->se_df); 171 ptr = malloc(size); 172 if (ptr == NULL) 173 goto quit; 174 _region_init(&subr, ptr, size); 175 ret = _db_factory_serialize(se->se_df, _CITRUS_PIVOT_SUB_MAGIC, 176 &subr); 177 if (ret) 178 goto quit; 179 ret = _db_factory_add_by_s(df, se->se_name, &subr, 1); 180 if (ret) 181 goto quit; 182 } 183 184 size = _db_factory_calc_size(df); 185 ptr = malloc(size); 186 if (ptr == NULL) 187 goto quit; 188 _region_init(r, ptr, size); 189 190 ret = _db_factory_serialize(df, _CITRUS_PIVOT_MAGIC, r); 191 ptr = NULL; 192 193 quit: 194 free(ptr); 195 _db_factory_free(df); 196 return (ret); 197 } 198 199 int 200 _citrus_pivot_factory_convert(FILE *out, FILE *in) 201 { 202 struct src_head sh; 203 struct _region r; 204 char *line; 205 size_t size; 206 int ret; 207 208 STAILQ_INIT(&sh); 209 210 while ((line = fgetln(in, &size)) != NULL) 211 if ((ret = convert_line(&sh, line, size))) { 212 free_src(&sh); 213 return (ret); 214 } 215 216 ret = dump_db(&sh, &r); 217 free_src(&sh); 218 if (ret) 219 return (ret); 220 221 if (fwrite(_region_head(&r), _region_size(&r), 1, out) != 1) 222 return (errno); 223 224 return (0); 225 } 226