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 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #include <stdlib.h> 28 #include <sys/types.h> 29 #include <string.h> 30 #include "rtc.h" 31 #include "_conv.h" 32 #include "config_msg.h" 33 34 #define FEATSZ CONV_EXPN_FIELD_DEF_PREFIX_SIZE + \ 35 MSG_CONF_EDLIBPATH_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 36 MSG_CONF_ESLIBPATH_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 37 MSG_CONF_ADLIBPATH_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 38 MSG_CONF_ASLIBPATH_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 39 MSG_CONF_DIRCFG_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 40 MSG_CONF_OBJALT_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 41 MSG_CONF_MEMRESV_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 42 MSG_CONF_ENVS_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 43 MSG_CONF_FLTR_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 44 CONV_INV_BUFSIZE + CONV_EXPN_FIELD_DEF_SUFFIX_SIZE 45 46 /* 47 * Ensure that Conv_config_feat_buf_t is large enough: 48 * 49 * FEATSZ is the real minimum size of the buffer required by conv_config_feat(). 50 * However, Conv_config_feat_buf_t uses CONV_CONFIG_FEAT_BUFSIZE to set the 51 * buffer size. We do things this way because the definition of FEATSZ uses 52 * information that is not available in the environment of other programs 53 * that include the conv.h header file. 54 */ 55 #if (CONV_CONFIG_FEAT_BUFSIZE != FEATSZ) && !defined(__lint) 56 #define REPORT_BUFSIZE FEATSZ 57 #include "report_bufsize.h" 58 #error "CONV_CONFIG_FEAT_BUFSIZE does not match FEATSZ" 59 #endif 60 61 /* 62 * String conversion routine for configuration file information. 63 */ 64 const char * 65 conv_config_feat(int features, Conv_config_feat_buf_t *config_feat_buf) 66 { 67 static const Val_desc vda[] = { 68 { CONF_EDLIBPATH, MSG_CONF_EDLIBPATH }, 69 { CONF_ESLIBPATH, MSG_CONF_ESLIBPATH }, 70 { CONF_ADLIBPATH, MSG_CONF_ADLIBPATH }, 71 { CONF_ASLIBPATH, MSG_CONF_ASLIBPATH }, 72 { CONF_DIRCFG, MSG_CONF_DIRCFG }, 73 { CONF_OBJALT, MSG_CONF_OBJALT }, 74 { CONF_MEMRESV, MSG_CONF_MEMRESV }, 75 { CONF_ENVS, MSG_CONF_ENVS }, 76 { CONF_FLTR, MSG_CONF_FLTR }, 77 { 0, 0 } 78 }; 79 static CONV_EXPN_FIELD_ARG conv_arg = { 80 NULL, sizeof (config_feat_buf->buf) }; 81 82 conv_arg.buf = config_feat_buf->buf; 83 conv_arg.oflags = conv_arg.rflags = features; 84 (void) conv_expn_field(&conv_arg, vda, 0); 85 86 return ((const char *)config_feat_buf->buf); 87 } 88 89 #define FLAGSZ CONV_EXPN_FIELD_DEF_PREFIX_SIZE + \ 90 MSG_CONF_DIRENT_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 91 MSG_CONF_ALLENTS_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 92 MSG_CONF_NOEXIST_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 93 MSG_CONF_EXEC_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 94 MSG_CONF_ALTER_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 95 MSG_CONF_OPTIONAL_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 96 MSG_CONF_DUMP_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 97 MSG_CONF_REALPATH_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 98 MSG_CONF_NOALTER_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 99 MSG_CONF_GROUP_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 100 MSG_CONF_APP_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 101 MSG_CONF_CMDLINE_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 102 MSG_CONF_FILTER_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 103 MSG_CONF_FILTEE_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 104 CONV_INV_BUFSIZE + CONV_EXPN_FIELD_DEF_SUFFIX_SIZE 105 106 /* 107 * Ensure that Conv_config_obj_buf_t is large enough: 108 * 109 * FLAGSZ is the real minimum size of the buffer required by conv_config_obj(). 110 * However, Conv_config_obj_buf_t uses CONV_CONFIG_OBJ_BUFSIZE to set the 111 * buffer size. We do things this way because the definition of FLAGSZ uses 112 * information that is not available in the environment of other programs 113 * that include the conv.h header file. 114 */ 115 #if (CONV_CONFIG_OBJ_BUFSIZE != FLAGSZ) && !defined(__lint) 116 #define REPORT_BUFSIZE FLAGSZ 117 #include "report_bufsize.h" 118 #error "CONV_CONFIG_OBJ_BUFSIZE does not match FLAGSZ" 119 #endif 120 121 /* 122 * String conversion routine for object flags. 123 */ 124 const char * 125 conv_config_obj(ushort_t flags, Conv_config_obj_buf_t *config_obj_buf) 126 { 127 static const Val_desc vda[] = { 128 { RTC_OBJ_DIRENT, MSG_CONF_DIRENT }, 129 { RTC_OBJ_ALLENTS, MSG_CONF_ALLENTS }, 130 { RTC_OBJ_NOEXIST, MSG_CONF_NOEXIST }, 131 { RTC_OBJ_EXEC, MSG_CONF_EXEC }, 132 { RTC_OBJ_ALTER, MSG_CONF_ALTER }, 133 { RTC_OBJ_DUMP, MSG_CONF_DUMP }, 134 { RTC_OBJ_NOALTER, MSG_CONF_NOALTER }, 135 { RTC_OBJ_REALPTH, MSG_CONF_REALPATH }, 136 { RTC_OBJ_GROUP, MSG_CONF_GROUP }, 137 { RTC_OBJ_APP, MSG_CONF_APP }, 138 { RTC_OBJ_CMDLINE, MSG_CONF_CMDLINE }, 139 { RTC_OBJ_FILTER, MSG_CONF_FILTER }, 140 { RTC_OBJ_FILTEE, MSG_CONF_FILTEE }, 141 { 0, 0 } 142 }; 143 static const char *leading_str_arr[2]; 144 static CONV_EXPN_FIELD_ARG conv_arg = { 145 NULL, sizeof (config_obj_buf->buf), leading_str_arr }; 146 147 const char **lstr = leading_str_arr; 148 149 if ((flags == 0) || (flags == RTC_OBJ_OPTINAL)) 150 return (MSG_ORIG(MSG_GBL_NULL)); 151 152 conv_arg.buf = config_obj_buf->buf; 153 conv_arg.rflags = flags; 154 155 /* 156 * Print an alternative-optional object simply as optional. 157 */ 158 if ((flags & (RTC_OBJ_ALTER | RTC_OBJ_OPTINAL)) == 159 (RTC_OBJ_ALTER | RTC_OBJ_OPTINAL)) { 160 *lstr++ = MSG_ORIG(MSG_CONF_OPTIONAL); 161 conv_arg.rflags &= ~(RTC_OBJ_ALTER | RTC_OBJ_OPTINAL); 162 } 163 *lstr = NULL; 164 conv_arg.oflags = conv_arg.rflags &= ~RTC_OBJ_OPTINAL; 165 166 (void) conv_expn_field(&conv_arg, vda, 0); 167 168 return ((const char *)config_obj_buf->buf); 169 } 170 171 /* 172 * Determine whether and old pathname exists within a search path string, 173 * without a new pathname, i.e., does the search path string contain "/usr/lib" 174 * but not "/lib". If so, add the new pathname before the old pathname. For 175 * example, convert: 176 * 177 * /local/lib:/opt/sfw/lib:/usr/lib 178 * to: 179 * /local/lib:/opt/sfw/lib:/lib:/usr/lib 180 */ 181 const char * 182 conv_config_upm(const char *str, const char *old, const char *new, 183 size_t newlen) 184 { 185 const char *curstr, *ptr; 186 const char *curold = 0, *curnew = 0; 187 const char *ptrold = old, * ptrnew = new; 188 int chkold = 1, chknew = 1; 189 190 for (curstr = ptr = str; *ptr; ptr++) { 191 if (*ptr == ':') { 192 /* 193 * We've come to the end of a token within the string. 194 */ 195 if ((uintptr_t)ptr - (uintptr_t)curstr) { 196 /* 197 * If the old or new string checking is still 198 * enabled, we've found a match. 199 */ 200 if (chkold) 201 curold = curstr; 202 if (chknew) 203 curnew = curstr; 204 } 205 curstr = (char *)(ptr + 1); 206 207 /* 208 * If an old or new string hasn't yet been matched, 209 * re-enable the checking for either. 210 */ 211 if (curold == 0) { 212 ptrold = old; 213 chkold = 1; 214 } 215 if (curnew == 0) { 216 ptrnew = new; 217 chknew = 1; 218 } 219 continue; 220 } 221 222 /* 223 * Determine if the current token matches the old or new string. 224 * If not, disable the checking for each string. 225 */ 226 if (chkold && (*ptr != *ptrold++)) 227 chkold = 0; 228 if (chknew && (*ptr != *ptrnew++)) 229 chknew = 0; 230 } 231 232 /* 233 * We've come to the end of the string, if the old or new string 234 * checking is still enabled, we've found a match. 235 */ 236 if ((uintptr_t)ptr - (uintptr_t)curstr) { 237 if (chkold) 238 curold = curstr; 239 if (chknew) 240 curnew = curstr; 241 } 242 243 /* 244 * If an old string hasn't been found, or it has and a new string has 245 * been found, return the original string. 246 */ 247 if ((curold == 0) || curnew) 248 return (str); 249 else { 250 char *newstr; 251 size_t len; 252 253 /* 254 * Allocate a new string, enlarged to accommodate the new string 255 * that will be inserted, and an associated separator. 256 */ 257 if ((curstr = malloc(newlen + 2 + 258 (uintptr_t)ptr - (uintptr_t)str)) == 0) 259 return (str); 260 261 newstr = (char *)curstr; 262 for (len = (uintptr_t)curold - (uintptr_t)str; len; len--) 263 *(newstr++) = *(str++); /* copy up to */ 264 /* insertion point */ 265 for (len = newlen; len; len--) 266 *(newstr++) = *(new++); /* add new string and */ 267 *(newstr++) = ':'; /* separator */ 268 for (len = (uintptr_t)ptr - (uintptr_t)str; len; len--) 269 *(newstr++) = *(str++); /* add remaining */ 270 *(newstr++) = '\0'; /* string */ 271 272 return (curstr); 273 } 274 } 275