1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 #include <stdlib.h> 29 #include <sys/types.h> 30 #include <string.h> 31 #include "rtc.h" 32 #include "_conv.h" 33 #include "config_msg.h" 34 35 #define FEATSZ CONV_EXPN_FIELD_DEF_PREFIX_SIZE + \ 36 MSG_CONF_EDLIBPATH_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 37 MSG_CONF_ESLIBPATH_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 38 MSG_CONF_ADLIBPATH_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 39 MSG_CONF_ASLIBPATH_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 40 MSG_CONF_DIRCFG_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 41 MSG_CONF_OBJALT_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 42 MSG_CONF_MEMRESV_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 43 MSG_CONF_ENVS_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 44 MSG_CONF_FLTR_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 45 CONV_INV_BUFSIZE + CONV_EXPN_FIELD_DEF_SUFFIX_SIZE 46 47 /* 48 * Ensure that Conv_config_feat_buf_t is large enough: 49 * 50 * FEATSZ is the real minimum size of the buffer required by conv_config_feat(). 51 * However, Conv_config_feat_buf_t uses CONV_CONFIG_FEAT_BUFSIZE to set the 52 * buffer size. We do things this way because the definition of FEATSZ uses 53 * information that is not available in the environment of other programs 54 * that include the conv.h header file. 55 */ 56 #if (CONV_CONFIG_FEAT_BUFSIZE < FEATSZ) && !defined(__lint) 57 #error "CONV_CONFIG_FEAT_BUFSIZE is not large enough" 58 #endif 59 60 /* 61 * String conversion routine for configuration file information. 62 */ 63 const char * 64 conv_config_feat(int features, Conv_config_feat_buf_t *config_feat_buf) 65 { 66 static Val_desc vda[] = { 67 { CONF_EDLIBPATH, MSG_ORIG(MSG_CONF_EDLIBPATH) }, 68 { CONF_ESLIBPATH, MSG_ORIG(MSG_CONF_ESLIBPATH) }, 69 { CONF_ADLIBPATH, MSG_ORIG(MSG_CONF_ADLIBPATH) }, 70 { CONF_ASLIBPATH, MSG_ORIG(MSG_CONF_ASLIBPATH) }, 71 { CONF_DIRCFG, MSG_ORIG(MSG_CONF_DIRCFG) }, 72 { CONF_OBJALT, MSG_ORIG(MSG_CONF_OBJALT) }, 73 { CONF_MEMRESV, MSG_ORIG(MSG_CONF_MEMRESV) }, 74 { CONF_ENVS, MSG_ORIG(MSG_CONF_ENVS) }, 75 { CONF_FLTR, MSG_ORIG(MSG_CONF_FLTR) }, 76 { 0, 0 } 77 }; 78 static CONV_EXPN_FIELD_ARG conv_arg = { 79 NULL, sizeof (config_feat_buf->buf), vda }; 80 81 conv_arg.buf = config_feat_buf->buf; 82 conv_arg.oflags = conv_arg.rflags = features; 83 (void) conv_expn_field(&conv_arg); 84 85 return ((const char *)config_feat_buf->buf); 86 } 87 88 #define FLAGSZ CONV_EXPN_FIELD_DEF_PREFIX_SIZE + \ 89 MSG_CONF_DIRENT_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 90 MSG_CONF_ALLENTS_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 91 MSG_CONF_NOEXIST_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 92 MSG_CONF_EXEC_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 93 MSG_CONF_ALTER_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 94 MSG_CONF_OPTIONAL_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 95 MSG_CONF_DUMP_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 96 MSG_CONF_REALPATH_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 97 MSG_CONF_NOALTER_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 98 MSG_CONF_GROUP_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 99 MSG_CONF_APP_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 100 MSG_CONF_CMDLINE_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 101 MSG_CONF_FILTER_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 102 MSG_CONF_FILTEE_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 103 CONV_INV_BUFSIZE + CONV_EXPN_FIELD_DEF_SUFFIX_SIZE 104 105 /* 106 * Ensure that Conv_config_obj_buf_t is large enough: 107 * 108 * FLAGSZ is the real minimum size of the buffer required by conv_config_obj(). 109 * However, Conv_config_obj_buf_t uses CONV_CONFIG_OBJ_BUFSIZE to set the 110 * buffer size. We do things this way because the definition of FLAGSZ uses 111 * information that is not available in the environment of other programs 112 * that include the conv.h header file. 113 */ 114 #if (CONV_CONFIG_OBJ_BUFSIZE < FLAGSZ) && !defined(__lint) 115 #error "CONV_CONFIG_OBJ_BUFSIZE is not large enough" 116 #endif 117 118 /* 119 * String conversion routine for object flags. 120 */ 121 const char * 122 conv_config_obj(ushort_t flags, Conv_config_obj_buf_t *config_obj_buf) 123 { 124 static Val_desc vda[] = { 125 { RTC_OBJ_DIRENT, MSG_ORIG(MSG_CONF_DIRENT) }, 126 { RTC_OBJ_ALLENTS, MSG_ORIG(MSG_CONF_ALLENTS) }, 127 { RTC_OBJ_NOEXIST, MSG_ORIG(MSG_CONF_NOEXIST) }, 128 { RTC_OBJ_EXEC, MSG_ORIG(MSG_CONF_EXEC) }, 129 { RTC_OBJ_ALTER, MSG_ORIG(MSG_CONF_ALTER) }, 130 { RTC_OBJ_DUMP, MSG_ORIG(MSG_CONF_DUMP) }, 131 { RTC_OBJ_NOALTER, MSG_ORIG(MSG_CONF_NOALTER) }, 132 { RTC_OBJ_REALPTH, MSG_ORIG(MSG_CONF_REALPATH) }, 133 { RTC_OBJ_GROUP, MSG_ORIG(MSG_CONF_GROUP) }, 134 { RTC_OBJ_APP, MSG_ORIG(MSG_CONF_APP) }, 135 { RTC_OBJ_CMDLINE, MSG_ORIG(MSG_CONF_CMDLINE) }, 136 { RTC_OBJ_FILTER, MSG_ORIG(MSG_CONF_FILTER) }, 137 { RTC_OBJ_FILTEE, MSG_ORIG(MSG_CONF_FILTEE) }, 138 { 0, 0 } 139 }; 140 static const char *leading_str_arr[2]; 141 static CONV_EXPN_FIELD_ARG conv_arg = { 142 NULL, sizeof (config_obj_buf->buf), vda, leading_str_arr }; 143 144 const char **lstr = leading_str_arr; 145 146 if ((flags == 0) || (flags == RTC_OBJ_OPTINAL)) 147 return (MSG_ORIG(MSG_GBL_NULL)); 148 149 conv_arg.buf = config_obj_buf->buf; 150 conv_arg.rflags = flags; 151 152 /* 153 * Print an alternative-optional object simply as optional. 154 */ 155 if ((flags & (RTC_OBJ_ALTER | RTC_OBJ_OPTINAL)) == 156 (RTC_OBJ_ALTER | RTC_OBJ_OPTINAL)) { 157 *lstr++ = MSG_ORIG(MSG_CONF_OPTIONAL); 158 conv_arg.rflags &= ~(RTC_OBJ_ALTER | RTC_OBJ_OPTINAL); 159 } 160 *lstr = NULL; 161 conv_arg.oflags = conv_arg.rflags &= ~RTC_OBJ_OPTINAL; 162 163 (void) conv_expn_field(&conv_arg); 164 165 return ((const char *)config_obj_buf->buf); 166 } 167 168 /* 169 * Determine whether and old pathname exists within a search path string, 170 * without a new pathname, i.e., does the search path string contain "/usr/lib" 171 * but not "/lib". If so, add the new pathname before the old pathname. For 172 * example, convert: 173 * 174 * /local/lib:/opt/sfw/lib:/usr/lib 175 * to: 176 * /local/lib:/opt/sfw/lib:/lib:/usr/lib 177 */ 178 const char * 179 conv_config_upm(const char *str, const char *old, const char *new, 180 size_t newlen) 181 { 182 const char *curstr, *ptr; 183 const char *curold = 0, *curnew = 0; 184 const char *ptrold = old, * ptrnew = new; 185 int chkold = 1, chknew = 1; 186 187 for (curstr = ptr = str; *ptr; ptr++) { 188 if (*ptr == ':') { 189 /* 190 * We've come to the end of a token within the string. 191 */ 192 if ((uintptr_t)ptr - (uintptr_t)curstr) { 193 /* 194 * If the old or new string checking is still 195 * enabled, we've found a match. 196 */ 197 if (chkold) 198 curold = curstr; 199 if (chknew) 200 curnew = curstr; 201 } 202 curstr = (char *)(ptr + 1); 203 204 /* 205 * If an old or new string hasn't yet been matched, 206 * re-enable the checking for either. 207 */ 208 if (curold == 0) { 209 ptrold = old; 210 chkold = 1; 211 } 212 if (curnew == 0) { 213 ptrnew = new; 214 chknew = 1; 215 } 216 continue; 217 } 218 219 /* 220 * Determine if the current token matches the old or new string. 221 * If not, disable the checking for each string. 222 */ 223 if (chkold && (*ptr != *ptrold++)) 224 chkold = 0; 225 if (chknew && (*ptr != *ptrnew++)) 226 chknew = 0; 227 } 228 229 /* 230 * We've come to the end of the string, if the old or new string 231 * checking is still enabled, we've found a match. 232 */ 233 if ((uintptr_t)ptr - (uintptr_t)curstr) { 234 if (chkold) 235 curold = curstr; 236 if (chknew) 237 curnew = curstr; 238 } 239 240 /* 241 * If an old string hasn't been found, or it has and a new string has 242 * been found, return the original string. 243 */ 244 if ((curold == 0) || curnew) 245 return (str); 246 else { 247 char *newstr; 248 size_t len; 249 250 /* 251 * Allocate a new string, enlarged to accommodate the new string 252 * that will be inserted, and an associated separator. 253 */ 254 if ((curstr = malloc(newlen + 2 + 255 (uintptr_t)ptr - (uintptr_t)str)) == 0) 256 return (str); 257 258 newstr = (char *)curstr; 259 for (len = (uintptr_t)curold - (uintptr_t)str; len; len--) 260 *(newstr++) = *(str++); /* copy up to */ 261 /* insertion point */ 262 for (len = newlen; len; len--) 263 *(newstr++) = *(new++); /* add new string and */ 264 *(newstr++) = ':'; /* separator */ 265 for (len = (uintptr_t)ptr - (uintptr_t)str; len; len--) 266 *(newstr++) = *(str++); /* add remaining */ 267 *(newstr++) = '\0'; /* string */ 268 269 return (curstr); 270 } 271 } 272