1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include <stdio.h> 30*0Sstevel@tonic-gate #include <stdlib.h> 31*0Sstevel@tonic-gate #include <strings.h> 32*0Sstevel@tonic-gate #include <secdb.h> 33*0Sstevel@tonic-gate #include <ctype.h> 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate /* From libnsl */ 36*0Sstevel@tonic-gate extern char *_strdup_null(char *); 37*0Sstevel@tonic-gate extern char *_strtok_escape(char *, char *, char **); 38*0Sstevel@tonic-gate extern char *_strpbrk_escape(char *, char *); 39*0Sstevel@tonic-gate extern char *_unescape(char *, char *); 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate char *_do_unescape(char *); 42*0Sstevel@tonic-gate 43*0Sstevel@tonic-gate 44*0Sstevel@tonic-gate /* 45*0Sstevel@tonic-gate * kva_match(): Given a key-value array and a key, return a pointer to the 46*0Sstevel@tonic-gate * value that matches the key. 47*0Sstevel@tonic-gate */ 48*0Sstevel@tonic-gate char * 49*0Sstevel@tonic-gate kva_match(kva_t *kva, char *key) 50*0Sstevel@tonic-gate { 51*0Sstevel@tonic-gate int i; 52*0Sstevel@tonic-gate kv_t *data; 53*0Sstevel@tonic-gate 54*0Sstevel@tonic-gate if (kva == NULL || key == NULL) { 55*0Sstevel@tonic-gate return ((char *)NULL); 56*0Sstevel@tonic-gate } 57*0Sstevel@tonic-gate data = kva->data; 58*0Sstevel@tonic-gate for (i = 0; i < kva->length; i++) { 59*0Sstevel@tonic-gate if (strcmp(data[i].key, key) == 0) { 60*0Sstevel@tonic-gate return (data[i].value); 61*0Sstevel@tonic-gate } 62*0Sstevel@tonic-gate } 63*0Sstevel@tonic-gate 64*0Sstevel@tonic-gate return ((char *)NULL); 65*0Sstevel@tonic-gate } 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate /* 68*0Sstevel@tonic-gate * _kva_free(): Free up memory. 69*0Sstevel@tonic-gate */ 70*0Sstevel@tonic-gate void 71*0Sstevel@tonic-gate _kva_free(kva_t *kva) 72*0Sstevel@tonic-gate { 73*0Sstevel@tonic-gate int i; 74*0Sstevel@tonic-gate kv_t *data; 75*0Sstevel@tonic-gate 76*0Sstevel@tonic-gate if (kva == NULL) { 77*0Sstevel@tonic-gate return; 78*0Sstevel@tonic-gate } 79*0Sstevel@tonic-gate data = kva->data; 80*0Sstevel@tonic-gate for (i = 0; i < kva->length; i++) { 81*0Sstevel@tonic-gate if (data[i].key != NULL) { 82*0Sstevel@tonic-gate free(data[i].key); 83*0Sstevel@tonic-gate data[i].key = NULL; 84*0Sstevel@tonic-gate } 85*0Sstevel@tonic-gate if (data[i].value != NULL) { 86*0Sstevel@tonic-gate free(data[i].value); 87*0Sstevel@tonic-gate data[i].value = NULL; 88*0Sstevel@tonic-gate } 89*0Sstevel@tonic-gate } 90*0Sstevel@tonic-gate free(kva->data); 91*0Sstevel@tonic-gate free(kva); 92*0Sstevel@tonic-gate } 93*0Sstevel@tonic-gate 94*0Sstevel@tonic-gate /* 95*0Sstevel@tonic-gate * new_kva(): Allocate a key-value array. 96*0Sstevel@tonic-gate */ 97*0Sstevel@tonic-gate kva_t * 98*0Sstevel@tonic-gate _new_kva(int size) 99*0Sstevel@tonic-gate { 100*0Sstevel@tonic-gate kva_t *new_kva; 101*0Sstevel@tonic-gate 102*0Sstevel@tonic-gate if ((new_kva = (kva_t *)calloc(1, sizeof (kva_t))) == NULL) { 103*0Sstevel@tonic-gate return ((kva_t *)NULL); 104*0Sstevel@tonic-gate } 105*0Sstevel@tonic-gate if ((new_kva->data = (kv_t *)calloc(1, (size*sizeof (kv_t)))) == NULL) { 106*0Sstevel@tonic-gate free(new_kva); 107*0Sstevel@tonic-gate return ((kva_t *)NULL); 108*0Sstevel@tonic-gate } 109*0Sstevel@tonic-gate 110*0Sstevel@tonic-gate return (new_kva); 111*0Sstevel@tonic-gate } 112*0Sstevel@tonic-gate 113*0Sstevel@tonic-gate /* 114*0Sstevel@tonic-gate * _str2kva(): Given a string (s) of key-value pairs, separated by delimeter 115*0Sstevel@tonic-gate * (del), place the values into the key value array (nkva). 116*0Sstevel@tonic-gate */ 117*0Sstevel@tonic-gate kva_t * 118*0Sstevel@tonic-gate _str2kva(char *s, char *ass, char *del) 119*0Sstevel@tonic-gate { 120*0Sstevel@tonic-gate int n = 0; 121*0Sstevel@tonic-gate int m; 122*0Sstevel@tonic-gate int size = KV_ADD_KEYS; 123*0Sstevel@tonic-gate char *buf; 124*0Sstevel@tonic-gate char *p; 125*0Sstevel@tonic-gate char *pair; 126*0Sstevel@tonic-gate char *key; 127*0Sstevel@tonic-gate char *last_pair; 128*0Sstevel@tonic-gate char *last_key; 129*0Sstevel@tonic-gate kv_t *data; 130*0Sstevel@tonic-gate kva_t *nkva; 131*0Sstevel@tonic-gate 132*0Sstevel@tonic-gate if (s == NULL || 133*0Sstevel@tonic-gate ass == NULL || 134*0Sstevel@tonic-gate del == NULL || 135*0Sstevel@tonic-gate *s == '\0' || 136*0Sstevel@tonic-gate *s == '\n' || 137*0Sstevel@tonic-gate (strlen(s) <= 1)) { 138*0Sstevel@tonic-gate return ((kva_t *)NULL); 139*0Sstevel@tonic-gate } 140*0Sstevel@tonic-gate p = s; 141*0Sstevel@tonic-gate while ((p = _strpbrk_escape(p, ass)) != NULL) { 142*0Sstevel@tonic-gate n++; 143*0Sstevel@tonic-gate p++; 144*0Sstevel@tonic-gate } 145*0Sstevel@tonic-gate if (n > size) { 146*0Sstevel@tonic-gate m = n/size; 147*0Sstevel@tonic-gate if (n%size) { 148*0Sstevel@tonic-gate ++m; 149*0Sstevel@tonic-gate } 150*0Sstevel@tonic-gate size = m * KV_ADD_KEYS; 151*0Sstevel@tonic-gate } 152*0Sstevel@tonic-gate if ((nkva = _new_kva(size)) == NULL) { 153*0Sstevel@tonic-gate return ((kva_t *)NULL); 154*0Sstevel@tonic-gate } 155*0Sstevel@tonic-gate data = nkva->data; 156*0Sstevel@tonic-gate nkva->length = 0; 157*0Sstevel@tonic-gate if ((buf = strdup(s)) == NULL) { 158*0Sstevel@tonic-gate return ((kva_t *)NULL); 159*0Sstevel@tonic-gate } 160*0Sstevel@tonic-gate pair = _strtok_escape(buf, del, &last_pair); 161*0Sstevel@tonic-gate do { 162*0Sstevel@tonic-gate key = _strtok_escape(pair, ass, &last_key); 163*0Sstevel@tonic-gate if (key != NULL) { 164*0Sstevel@tonic-gate data[nkva->length].key = _do_unescape(key); 165*0Sstevel@tonic-gate data[nkva->length].value = _do_unescape(last_key); 166*0Sstevel@tonic-gate nkva->length++; 167*0Sstevel@tonic-gate } 168*0Sstevel@tonic-gate } while ((pair = _strtok_escape(NULL, del, &last_pair)) != NULL); 169*0Sstevel@tonic-gate free(buf); 170*0Sstevel@tonic-gate return (nkva); 171*0Sstevel@tonic-gate } 172*0Sstevel@tonic-gate 173*0Sstevel@tonic-gate /* 174*0Sstevel@tonic-gate * _kva2str(): Given an array of key-value pairs, place them into a string 175*0Sstevel@tonic-gate * (buf). Use delimeter (del) to separate pairs. Use assignment character 176*0Sstevel@tonic-gate * (ass) to separate keys and values. 177*0Sstevel@tonic-gate * 178*0Sstevel@tonic-gate * Return Values: 0 Success 1 Buffer too small 2 Out of memory 179*0Sstevel@tonic-gate */ 180*0Sstevel@tonic-gate int 181*0Sstevel@tonic-gate _kva2str(kva_t *kva, char *buf, int buflen, char *ass, char *del) 182*0Sstevel@tonic-gate { 183*0Sstevel@tonic-gate int i; 184*0Sstevel@tonic-gate int length = 0; 185*0Sstevel@tonic-gate char *tmp; 186*0Sstevel@tonic-gate kv_t *data; 187*0Sstevel@tonic-gate 188*0Sstevel@tonic-gate if (kva == NULL) { 189*0Sstevel@tonic-gate return (0); 190*0Sstevel@tonic-gate } 191*0Sstevel@tonic-gate data = kva->data; 192*0Sstevel@tonic-gate for (i = 0; i < kva->length; i++) { 193*0Sstevel@tonic-gate if (data[i].value != NULL) { 194*0Sstevel@tonic-gate length += 2 + strlen(data[i].value); 195*0Sstevel@tonic-gate } 196*0Sstevel@tonic-gate } 197*0Sstevel@tonic-gate if (length > buflen) { 198*0Sstevel@tonic-gate return (1); 199*0Sstevel@tonic-gate } 200*0Sstevel@tonic-gate (void) memset(buf, 0, buflen); 201*0Sstevel@tonic-gate if ((tmp = (char *)malloc(buflen)) == NULL) { 202*0Sstevel@tonic-gate return (2); 203*0Sstevel@tonic-gate } 204*0Sstevel@tonic-gate for (i = 0; i < kva->length; i++) { 205*0Sstevel@tonic-gate if (data[i].value != NULL) { 206*0Sstevel@tonic-gate if (snprintf(tmp, buflen, "%s%s%s%s", 207*0Sstevel@tonic-gate data[i].key, ass, data[i].value, del) >= buflen) { 208*0Sstevel@tonic-gate return (0); 209*0Sstevel@tonic-gate } 210*0Sstevel@tonic-gate (void) strcat(buf, tmp); 211*0Sstevel@tonic-gate } 212*0Sstevel@tonic-gate } 213*0Sstevel@tonic-gate return (0); 214*0Sstevel@tonic-gate } 215*0Sstevel@tonic-gate 216*0Sstevel@tonic-gate int 217*0Sstevel@tonic-gate _insert2kva(kva_t *kva, char *key, char *value) 218*0Sstevel@tonic-gate { 219*0Sstevel@tonic-gate int i; 220*0Sstevel@tonic-gate kv_t *data; 221*0Sstevel@tonic-gate 222*0Sstevel@tonic-gate if (kva == NULL) { 223*0Sstevel@tonic-gate return (0); 224*0Sstevel@tonic-gate } 225*0Sstevel@tonic-gate data = kva->data; 226*0Sstevel@tonic-gate for (i = 0; i < kva->length; i++) { 227*0Sstevel@tonic-gate if (strcmp(data[i].key, key) == 0) { 228*0Sstevel@tonic-gate if (data[i].value != NULL) 229*0Sstevel@tonic-gate free(data[i].value); 230*0Sstevel@tonic-gate data[i].value = _strdup_null(value); 231*0Sstevel@tonic-gate return (0); 232*0Sstevel@tonic-gate } 233*0Sstevel@tonic-gate } 234*0Sstevel@tonic-gate return (1); 235*0Sstevel@tonic-gate } 236*0Sstevel@tonic-gate 237*0Sstevel@tonic-gate kva_t * 238*0Sstevel@tonic-gate _kva_dup(kva_t *old_kva) 239*0Sstevel@tonic-gate { 240*0Sstevel@tonic-gate int i; 241*0Sstevel@tonic-gate int size; 242*0Sstevel@tonic-gate kv_t *old_data; 243*0Sstevel@tonic-gate kv_t *new_data; 244*0Sstevel@tonic-gate kva_t *nkva = (kva_t *)NULL; 245*0Sstevel@tonic-gate 246*0Sstevel@tonic-gate if (old_kva == NULL) { 247*0Sstevel@tonic-gate return ((kva_t *)NULL); 248*0Sstevel@tonic-gate } 249*0Sstevel@tonic-gate old_data = old_kva->data; 250*0Sstevel@tonic-gate size = old_kva->length; 251*0Sstevel@tonic-gate if ((nkva = _new_kva(size)) == NULL) { 252*0Sstevel@tonic-gate return ((kva_t *)NULL); 253*0Sstevel@tonic-gate } 254*0Sstevel@tonic-gate new_data = nkva->data; 255*0Sstevel@tonic-gate nkva->length = old_kva->length; 256*0Sstevel@tonic-gate for (i = 0; i <= nkva->length; i++) { 257*0Sstevel@tonic-gate new_data[i].key = _strdup_null(old_data[i].key); 258*0Sstevel@tonic-gate new_data[i].value = _strdup_null(old_data[i].value); 259*0Sstevel@tonic-gate } 260*0Sstevel@tonic-gate 261*0Sstevel@tonic-gate return (nkva); 262*0Sstevel@tonic-gate } 263*0Sstevel@tonic-gate 264*0Sstevel@tonic-gate static void 265*0Sstevel@tonic-gate strip_spaces(char **valuep) 266*0Sstevel@tonic-gate { 267*0Sstevel@tonic-gate char *p, *start; 268*0Sstevel@tonic-gate 269*0Sstevel@tonic-gate /* Find first non-white space character and return pointer to it */ 270*0Sstevel@tonic-gate for (p = *valuep; *p != '\0' && isspace((unsigned char)*p); p++) 271*0Sstevel@tonic-gate ; 272*0Sstevel@tonic-gate 273*0Sstevel@tonic-gate *valuep = start = p; 274*0Sstevel@tonic-gate 275*0Sstevel@tonic-gate if (*p == '\0') 276*0Sstevel@tonic-gate return; 277*0Sstevel@tonic-gate 278*0Sstevel@tonic-gate p = p + strlen(p) - 1; 279*0Sstevel@tonic-gate 280*0Sstevel@tonic-gate /* Remove trailing spaces */ 281*0Sstevel@tonic-gate while (p > start && isspace((unsigned char)*p)) 282*0Sstevel@tonic-gate p--; 283*0Sstevel@tonic-gate 284*0Sstevel@tonic-gate p[1] = '\0'; 285*0Sstevel@tonic-gate } 286*0Sstevel@tonic-gate 287*0Sstevel@tonic-gate char * 288*0Sstevel@tonic-gate _do_unescape(char *src) 289*0Sstevel@tonic-gate { 290*0Sstevel@tonic-gate char *tmp = NULL; 291*0Sstevel@tonic-gate char *dst = NULL; 292*0Sstevel@tonic-gate 293*0Sstevel@tonic-gate if (src == NULL) { 294*0Sstevel@tonic-gate dst = _strdup_null(src); 295*0Sstevel@tonic-gate } else { 296*0Sstevel@tonic-gate strip_spaces(&src); 297*0Sstevel@tonic-gate tmp = _unescape(src, "=;:,\\"); 298*0Sstevel@tonic-gate dst = (tmp == NULL) ? _strdup_null(src) : tmp; 299*0Sstevel@tonic-gate } 300*0Sstevel@tonic-gate 301*0Sstevel@tonic-gate return (dst); 302*0Sstevel@tonic-gate } 303*0Sstevel@tonic-gate 304*0Sstevel@tonic-gate 305*0Sstevel@tonic-gate /* 306*0Sstevel@tonic-gate * Some utilities for handling comma-separated lists. 307*0Sstevel@tonic-gate */ 308*0Sstevel@tonic-gate char * 309*0Sstevel@tonic-gate _argv_to_csl(char **strings) 310*0Sstevel@tonic-gate { 311*0Sstevel@tonic-gate int len = 0; 312*0Sstevel@tonic-gate int i = 0; 313*0Sstevel@tonic-gate char *newstr = (char *)NULL; 314*0Sstevel@tonic-gate 315*0Sstevel@tonic-gate if (strings == NULL) 316*0Sstevel@tonic-gate return ((char *)NULL); 317*0Sstevel@tonic-gate for (i = 0; strings[i] != NULL; i++) { 318*0Sstevel@tonic-gate len += strlen(strings[i]) + 1; 319*0Sstevel@tonic-gate } 320*0Sstevel@tonic-gate if ((newstr = (char *)malloc(len + 1)) == NULL) { 321*0Sstevel@tonic-gate return ((char *)NULL); 322*0Sstevel@tonic-gate } 323*0Sstevel@tonic-gate (void) memset(newstr, 0, len); 324*0Sstevel@tonic-gate for (i = 0; strings[i] != NULL; i++) { 325*0Sstevel@tonic-gate (void) strcat(newstr, strings[i]); 326*0Sstevel@tonic-gate (void) strcat(newstr, ","); 327*0Sstevel@tonic-gate } 328*0Sstevel@tonic-gate newstr[len-1] = NULL; 329*0Sstevel@tonic-gate return (newstr); 330*0Sstevel@tonic-gate } 331*0Sstevel@tonic-gate 332*0Sstevel@tonic-gate 333*0Sstevel@tonic-gate char ** 334*0Sstevel@tonic-gate _csl_to_argv(char *csl) 335*0Sstevel@tonic-gate { 336*0Sstevel@tonic-gate int len = 0; 337*0Sstevel@tonic-gate int ncommas = 0; 338*0Sstevel@tonic-gate int i = 0; 339*0Sstevel@tonic-gate char **spc = (char **)NULL; 340*0Sstevel@tonic-gate char *copy = (char *)NULL; 341*0Sstevel@tonic-gate char *pc; 342*0Sstevel@tonic-gate char *lasts = (char *)NULL; 343*0Sstevel@tonic-gate 344*0Sstevel@tonic-gate len = strlen(csl); 345*0Sstevel@tonic-gate for (i = 0; i < len; i++) { 346*0Sstevel@tonic-gate if (csl[i] == ',') 347*0Sstevel@tonic-gate ncommas++; 348*0Sstevel@tonic-gate } 349*0Sstevel@tonic-gate if ((spc = (char **)malloc((ncommas + 2) * sizeof (char *))) == NULL) { 350*0Sstevel@tonic-gate return ((char **)NULL); 351*0Sstevel@tonic-gate } 352*0Sstevel@tonic-gate copy = strdup(csl); 353*0Sstevel@tonic-gate for (pc = strtok_r(copy, ",", &lasts), i = 0; pc != NULL; 354*0Sstevel@tonic-gate pc = strtok_r(NULL, ",", &lasts), i++) { 355*0Sstevel@tonic-gate spc[i] = strdup(pc); 356*0Sstevel@tonic-gate } 357*0Sstevel@tonic-gate spc[i] = NULL; 358*0Sstevel@tonic-gate free(copy); 359*0Sstevel@tonic-gate return (spc); 360*0Sstevel@tonic-gate } 361*0Sstevel@tonic-gate 362*0Sstevel@tonic-gate 363*0Sstevel@tonic-gate void 364*0Sstevel@tonic-gate _free_argv(char **p_argv) 365*0Sstevel@tonic-gate { 366*0Sstevel@tonic-gate char **p_a; 367*0Sstevel@tonic-gate 368*0Sstevel@tonic-gate for (p_a = p_argv; *p_a != NULL; p_a++) 369*0Sstevel@tonic-gate free(*p_a); 370*0Sstevel@tonic-gate free(p_argv); 371*0Sstevel@tonic-gate } 372*0Sstevel@tonic-gate 373*0Sstevel@tonic-gate 374*0Sstevel@tonic-gate #ifdef DEBUG 375*0Sstevel@tonic-gate void 376*0Sstevel@tonic-gate print_kva(kva_t *kva) 377*0Sstevel@tonic-gate { 378*0Sstevel@tonic-gate int i; 379*0Sstevel@tonic-gate kv_t *data; 380*0Sstevel@tonic-gate 381*0Sstevel@tonic-gate if (kva == NULL) { 382*0Sstevel@tonic-gate printf(" (empty)\n"); 383*0Sstevel@tonic-gate return; 384*0Sstevel@tonic-gate } 385*0Sstevel@tonic-gate data = kva->data; 386*0Sstevel@tonic-gate for (i = 0; i < kva->length; i++) { 387*0Sstevel@tonic-gate printf(" %s = %s\n", data[i].key, data[i].value); 388*0Sstevel@tonic-gate } 389*0Sstevel@tonic-gate } 390*0Sstevel@tonic-gate #endif /* DEBUG */ 391