1*0Sstevel@tonic-gate /*- 2*0Sstevel@tonic-gate * See the file LICENSE for redistribution information. 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * Copyright (c) 1997, 1998 5*0Sstevel@tonic-gate * Sleepycat Software. All rights reserved. 6*0Sstevel@tonic-gate */ 7*0Sstevel@tonic-gate 8*0Sstevel@tonic-gate #include "config.h" 9*0Sstevel@tonic-gate 10*0Sstevel@tonic-gate #ifndef lint 11*0Sstevel@tonic-gate static const char sccsid[] = "@(#)log_archive.c 10.44 (Sleepycat) 10/9/98"; 12*0Sstevel@tonic-gate #endif /* not lint */ 13*0Sstevel@tonic-gate 14*0Sstevel@tonic-gate #ifndef NO_SYSTEM_INCLUDES 15*0Sstevel@tonic-gate #include <sys/types.h> 16*0Sstevel@tonic-gate 17*0Sstevel@tonic-gate #include <errno.h> 18*0Sstevel@tonic-gate #include <stdlib.h> 19*0Sstevel@tonic-gate #include <string.h> 20*0Sstevel@tonic-gate #include <unistd.h> 21*0Sstevel@tonic-gate #endif 22*0Sstevel@tonic-gate 23*0Sstevel@tonic-gate #include "db_int.h" 24*0Sstevel@tonic-gate #include "db_dispatch.h" 25*0Sstevel@tonic-gate #include "shqueue.h" 26*0Sstevel@tonic-gate #include "log.h" 27*0Sstevel@tonic-gate #include "common_ext.h" 28*0Sstevel@tonic-gate #include "clib_ext.h" /* XXX: needed for getcwd. */ 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate static int __absname __P((char *, char *, char **)); 31*0Sstevel@tonic-gate static int __build_data __P((DB_LOG *, char *, char ***, void *(*)(size_t))); 32*0Sstevel@tonic-gate static int __cmpfunc __P((const void *, const void *)); 33*0Sstevel@tonic-gate static int __usermem __P((char ***, void *(*)(size_t))); 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate /* 36*0Sstevel@tonic-gate * log_archive -- 37*0Sstevel@tonic-gate * Supporting function for db_archive(1). 38*0Sstevel@tonic-gate */ 39*0Sstevel@tonic-gate int 40*0Sstevel@tonic-gate log_archive(dblp, listp, flags, db_malloc) 41*0Sstevel@tonic-gate DB_LOG *dblp; 42*0Sstevel@tonic-gate char ***listp; 43*0Sstevel@tonic-gate u_int32_t flags; 44*0Sstevel@tonic-gate void *(*db_malloc) __P((size_t)); 45*0Sstevel@tonic-gate { 46*0Sstevel@tonic-gate DBT rec; 47*0Sstevel@tonic-gate DB_LSN stable_lsn; 48*0Sstevel@tonic-gate u_int32_t fnum; 49*0Sstevel@tonic-gate int array_size, n, ret; 50*0Sstevel@tonic-gate char **array, **arrayp, *name, *p, *pref, buf[MAXPATHLEN]; 51*0Sstevel@tonic-gate 52*0Sstevel@tonic-gate name = NULL; 53*0Sstevel@tonic-gate COMPQUIET(fnum, 0); 54*0Sstevel@tonic-gate 55*0Sstevel@tonic-gate LOG_PANIC_CHECK(dblp); 56*0Sstevel@tonic-gate 57*0Sstevel@tonic-gate #define OKFLAGS (DB_ARCH_ABS | DB_ARCH_DATA | DB_ARCH_LOG) 58*0Sstevel@tonic-gate if (flags != 0) { 59*0Sstevel@tonic-gate if ((ret = 60*0Sstevel@tonic-gate __db_fchk(dblp->dbenv, "log_archive", flags, OKFLAGS)) != 0) 61*0Sstevel@tonic-gate return (ret); 62*0Sstevel@tonic-gate if ((ret = 63*0Sstevel@tonic-gate __db_fcchk(dblp->dbenv, 64*0Sstevel@tonic-gate "log_archive", flags, DB_ARCH_DATA, DB_ARCH_LOG)) != 0) 65*0Sstevel@tonic-gate return (ret); 66*0Sstevel@tonic-gate } 67*0Sstevel@tonic-gate 68*0Sstevel@tonic-gate /* 69*0Sstevel@tonic-gate * Get the absolute pathname of the current directory. It would 70*0Sstevel@tonic-gate * be nice to get the shortest pathname of the database directory, 71*0Sstevel@tonic-gate * but that's just not possible. 72*0Sstevel@tonic-gate */ 73*0Sstevel@tonic-gate if (LF_ISSET(DB_ARCH_ABS)) { 74*0Sstevel@tonic-gate errno = 0; 75*0Sstevel@tonic-gate if ((pref = getcwd(buf, sizeof(buf))) == NULL) 76*0Sstevel@tonic-gate return (errno == 0 ? ENOMEM : errno); 77*0Sstevel@tonic-gate } else 78*0Sstevel@tonic-gate pref = NULL; 79*0Sstevel@tonic-gate 80*0Sstevel@tonic-gate switch (LF_ISSET(~DB_ARCH_ABS)) { 81*0Sstevel@tonic-gate case DB_ARCH_DATA: 82*0Sstevel@tonic-gate return (__build_data(dblp, pref, listp, db_malloc)); 83*0Sstevel@tonic-gate case DB_ARCH_LOG: 84*0Sstevel@tonic-gate memset(&rec, 0, sizeof(rec)); 85*0Sstevel@tonic-gate if (F_ISSET(dblp, DB_AM_THREAD)) 86*0Sstevel@tonic-gate F_SET(&rec, DB_DBT_MALLOC); 87*0Sstevel@tonic-gate if ((ret = log_get(dblp, &stable_lsn, &rec, DB_LAST)) != 0) 88*0Sstevel@tonic-gate return (ret); 89*0Sstevel@tonic-gate if (F_ISSET(dblp, DB_AM_THREAD)) 90*0Sstevel@tonic-gate __os_free(rec.data, rec.size); 91*0Sstevel@tonic-gate fnum = stable_lsn.file; 92*0Sstevel@tonic-gate break; 93*0Sstevel@tonic-gate case 0: 94*0Sstevel@tonic-gate if ((ret = __log_findckp(dblp, &stable_lsn)) != 0) { 95*0Sstevel@tonic-gate /* 96*0Sstevel@tonic-gate * A return of DB_NOTFOUND means that we didn't find 97*0Sstevel@tonic-gate * any records in the log (so we are not going to be 98*0Sstevel@tonic-gate * deleting any log files). 99*0Sstevel@tonic-gate */ 100*0Sstevel@tonic-gate if (ret != DB_NOTFOUND) 101*0Sstevel@tonic-gate return (ret); 102*0Sstevel@tonic-gate *listp = NULL; 103*0Sstevel@tonic-gate return (0); 104*0Sstevel@tonic-gate } 105*0Sstevel@tonic-gate /* Remove any log files before the last stable LSN. */ 106*0Sstevel@tonic-gate fnum = stable_lsn.file - 1; 107*0Sstevel@tonic-gate break; 108*0Sstevel@tonic-gate } 109*0Sstevel@tonic-gate 110*0Sstevel@tonic-gate #define LIST_INCREMENT 64 111*0Sstevel@tonic-gate /* Get some initial space. */ 112*0Sstevel@tonic-gate array_size = 10; 113*0Sstevel@tonic-gate if ((ret = __os_malloc(sizeof(char *) * array_size, NULL, &array)) != 0) 114*0Sstevel@tonic-gate return (ret); 115*0Sstevel@tonic-gate array[0] = NULL; 116*0Sstevel@tonic-gate 117*0Sstevel@tonic-gate /* Build an array of the file names. */ 118*0Sstevel@tonic-gate for (n = 0; fnum > 0; --fnum) { 119*0Sstevel@tonic-gate if ((ret = __log_name(dblp, fnum, &name, NULL, 0)) != 0) 120*0Sstevel@tonic-gate goto err; 121*0Sstevel@tonic-gate if (__os_exists(name, NULL) != 0) { 122*0Sstevel@tonic-gate __os_freestr(name); 123*0Sstevel@tonic-gate name = NULL; 124*0Sstevel@tonic-gate break; 125*0Sstevel@tonic-gate } 126*0Sstevel@tonic-gate 127*0Sstevel@tonic-gate if (n >= array_size - 1) { 128*0Sstevel@tonic-gate array_size += LIST_INCREMENT; 129*0Sstevel@tonic-gate if ((ret = __os_realloc(&array, 130*0Sstevel@tonic-gate sizeof(char *) * array_size)) != 0) 131*0Sstevel@tonic-gate goto err; 132*0Sstevel@tonic-gate } 133*0Sstevel@tonic-gate 134*0Sstevel@tonic-gate if (LF_ISSET(DB_ARCH_ABS)) { 135*0Sstevel@tonic-gate if ((ret = __absname(pref, name, &array[n])) != 0) 136*0Sstevel@tonic-gate goto err; 137*0Sstevel@tonic-gate __os_freestr(name); 138*0Sstevel@tonic-gate } else if ((p = __db_rpath(name)) != NULL) { 139*0Sstevel@tonic-gate if ((ret = __os_strdup(p + 1, &array[n])) != 0) 140*0Sstevel@tonic-gate goto err; 141*0Sstevel@tonic-gate __os_freestr(name); 142*0Sstevel@tonic-gate } else 143*0Sstevel@tonic-gate array[n] = name; 144*0Sstevel@tonic-gate 145*0Sstevel@tonic-gate name = NULL; 146*0Sstevel@tonic-gate array[++n] = NULL; 147*0Sstevel@tonic-gate } 148*0Sstevel@tonic-gate 149*0Sstevel@tonic-gate /* If there's nothing to return, we're done. */ 150*0Sstevel@tonic-gate if (n == 0) { 151*0Sstevel@tonic-gate *listp = NULL; 152*0Sstevel@tonic-gate ret = 0; 153*0Sstevel@tonic-gate goto err; 154*0Sstevel@tonic-gate } 155*0Sstevel@tonic-gate 156*0Sstevel@tonic-gate /* Sort the list. */ 157*0Sstevel@tonic-gate qsort(array, (size_t)n, sizeof(char *), __cmpfunc); 158*0Sstevel@tonic-gate 159*0Sstevel@tonic-gate /* Rework the memory. */ 160*0Sstevel@tonic-gate if ((ret = __usermem(&array, db_malloc)) != 0) 161*0Sstevel@tonic-gate goto err; 162*0Sstevel@tonic-gate 163*0Sstevel@tonic-gate *listp = array; 164*0Sstevel@tonic-gate return (0); 165*0Sstevel@tonic-gate 166*0Sstevel@tonic-gate err: if (array != NULL) { 167*0Sstevel@tonic-gate for (arrayp = array; *arrayp != NULL; ++arrayp) 168*0Sstevel@tonic-gate __os_freestr(*arrayp); 169*0Sstevel@tonic-gate __os_free(array, sizeof(char *) * array_size); 170*0Sstevel@tonic-gate } 171*0Sstevel@tonic-gate if (name != NULL) 172*0Sstevel@tonic-gate __os_freestr(name); 173*0Sstevel@tonic-gate return (ret); 174*0Sstevel@tonic-gate } 175*0Sstevel@tonic-gate 176*0Sstevel@tonic-gate /* 177*0Sstevel@tonic-gate * __build_data -- 178*0Sstevel@tonic-gate * Build a list of datafiles for return. 179*0Sstevel@tonic-gate */ 180*0Sstevel@tonic-gate static int 181*0Sstevel@tonic-gate __build_data(dblp, pref, listp, db_malloc) 182*0Sstevel@tonic-gate DB_LOG *dblp; 183*0Sstevel@tonic-gate char *pref, ***listp; 184*0Sstevel@tonic-gate void *(*db_malloc) __P((size_t)); 185*0Sstevel@tonic-gate { 186*0Sstevel@tonic-gate DBT rec; 187*0Sstevel@tonic-gate DB_LSN lsn; 188*0Sstevel@tonic-gate __log_register_args *argp; 189*0Sstevel@tonic-gate u_int32_t rectype; 190*0Sstevel@tonic-gate int array_size, last, n, nxt, ret; 191*0Sstevel@tonic-gate char **array, **arrayp, *p, *real_name; 192*0Sstevel@tonic-gate 193*0Sstevel@tonic-gate /* Get some initial space. */ 194*0Sstevel@tonic-gate array_size = 10; 195*0Sstevel@tonic-gate if ((ret = __os_malloc(sizeof(char *) * array_size, NULL, &array)) != 0) 196*0Sstevel@tonic-gate return (ret); 197*0Sstevel@tonic-gate array[0] = NULL; 198*0Sstevel@tonic-gate 199*0Sstevel@tonic-gate memset(&rec, 0, sizeof(rec)); 200*0Sstevel@tonic-gate if (F_ISSET(dblp, DB_AM_THREAD)) 201*0Sstevel@tonic-gate F_SET(&rec, DB_DBT_MALLOC); 202*0Sstevel@tonic-gate for (n = 0, ret = log_get(dblp, &lsn, &rec, DB_FIRST); 203*0Sstevel@tonic-gate ret == 0; ret = log_get(dblp, &lsn, &rec, DB_NEXT)) { 204*0Sstevel@tonic-gate if (rec.size < sizeof(rectype)) { 205*0Sstevel@tonic-gate ret = EINVAL; 206*0Sstevel@tonic-gate __db_err(dblp->dbenv, "log_archive: bad log record"); 207*0Sstevel@tonic-gate goto lg_free; 208*0Sstevel@tonic-gate } 209*0Sstevel@tonic-gate 210*0Sstevel@tonic-gate memcpy(&rectype, rec.data, sizeof(rectype)); 211*0Sstevel@tonic-gate if (rectype != DB_log_register) { 212*0Sstevel@tonic-gate if (F_ISSET(dblp, DB_AM_THREAD)) { 213*0Sstevel@tonic-gate __os_free(rec.data, rec.size); 214*0Sstevel@tonic-gate rec.data = NULL; 215*0Sstevel@tonic-gate } 216*0Sstevel@tonic-gate continue; 217*0Sstevel@tonic-gate } 218*0Sstevel@tonic-gate if ((ret = __log_register_read(rec.data, &argp)) != 0) { 219*0Sstevel@tonic-gate ret = EINVAL; 220*0Sstevel@tonic-gate __db_err(dblp->dbenv, 221*0Sstevel@tonic-gate "log_archive: unable to read log record"); 222*0Sstevel@tonic-gate goto lg_free; 223*0Sstevel@tonic-gate } 224*0Sstevel@tonic-gate 225*0Sstevel@tonic-gate if (n >= array_size - 1) { 226*0Sstevel@tonic-gate array_size += LIST_INCREMENT; 227*0Sstevel@tonic-gate if ((ret = __os_realloc(&array, 228*0Sstevel@tonic-gate sizeof(char *) * array_size)) != 0) 229*0Sstevel@tonic-gate goto lg_free; 230*0Sstevel@tonic-gate } 231*0Sstevel@tonic-gate 232*0Sstevel@tonic-gate if ((ret = __os_strdup(argp->name.data, &array[n])) != 0) { 233*0Sstevel@tonic-gate lg_free: if (F_ISSET(&rec, DB_DBT_MALLOC) && rec.data != NULL) 234*0Sstevel@tonic-gate __os_free(rec.data, rec.size); 235*0Sstevel@tonic-gate goto err1; 236*0Sstevel@tonic-gate } 237*0Sstevel@tonic-gate 238*0Sstevel@tonic-gate array[++n] = NULL; 239*0Sstevel@tonic-gate __os_free(argp, 0); 240*0Sstevel@tonic-gate 241*0Sstevel@tonic-gate if (F_ISSET(dblp, DB_AM_THREAD)) { 242*0Sstevel@tonic-gate __os_free(rec.data, rec.size); 243*0Sstevel@tonic-gate rec.data = NULL; 244*0Sstevel@tonic-gate } 245*0Sstevel@tonic-gate } 246*0Sstevel@tonic-gate 247*0Sstevel@tonic-gate /* If there's nothing to return, we're done. */ 248*0Sstevel@tonic-gate if (n == 0) { 249*0Sstevel@tonic-gate ret = 0; 250*0Sstevel@tonic-gate *listp = NULL; 251*0Sstevel@tonic-gate goto err1; 252*0Sstevel@tonic-gate } 253*0Sstevel@tonic-gate 254*0Sstevel@tonic-gate /* Sort the list. */ 255*0Sstevel@tonic-gate qsort(array, (size_t)n, sizeof(char *), __cmpfunc); 256*0Sstevel@tonic-gate 257*0Sstevel@tonic-gate /* 258*0Sstevel@tonic-gate * Build the real pathnames, discarding nonexistent files and 259*0Sstevel@tonic-gate * duplicates. 260*0Sstevel@tonic-gate */ 261*0Sstevel@tonic-gate for (last = nxt = 0; nxt < n;) { 262*0Sstevel@tonic-gate /* 263*0Sstevel@tonic-gate * Discard duplicates. Last is the next slot we're going 264*0Sstevel@tonic-gate * to return to the user, nxt is the next slot that we're 265*0Sstevel@tonic-gate * going to consider. 266*0Sstevel@tonic-gate */ 267*0Sstevel@tonic-gate if (last != nxt) { 268*0Sstevel@tonic-gate array[last] = array[nxt]; 269*0Sstevel@tonic-gate array[nxt] = NULL; 270*0Sstevel@tonic-gate } 271*0Sstevel@tonic-gate for (++nxt; nxt < n && 272*0Sstevel@tonic-gate strcmp(array[last], array[nxt]) == 0; ++nxt) { 273*0Sstevel@tonic-gate __os_freestr(array[nxt]); 274*0Sstevel@tonic-gate array[nxt] = NULL; 275*0Sstevel@tonic-gate } 276*0Sstevel@tonic-gate 277*0Sstevel@tonic-gate /* Get the real name. */ 278*0Sstevel@tonic-gate if ((ret = __db_appname(dblp->dbenv, 279*0Sstevel@tonic-gate DB_APP_DATA, NULL, array[last], 0, NULL, &real_name)) != 0) 280*0Sstevel@tonic-gate goto err2; 281*0Sstevel@tonic-gate 282*0Sstevel@tonic-gate /* If the file doesn't exist, ignore it. */ 283*0Sstevel@tonic-gate if (__os_exists(real_name, NULL) != 0) { 284*0Sstevel@tonic-gate __os_freestr(real_name); 285*0Sstevel@tonic-gate __os_freestr(array[last]); 286*0Sstevel@tonic-gate array[last] = NULL; 287*0Sstevel@tonic-gate continue; 288*0Sstevel@tonic-gate } 289*0Sstevel@tonic-gate 290*0Sstevel@tonic-gate /* Rework the name as requested by the user. */ 291*0Sstevel@tonic-gate __os_freestr(array[last]); 292*0Sstevel@tonic-gate array[last] = NULL; 293*0Sstevel@tonic-gate if (pref != NULL) { 294*0Sstevel@tonic-gate ret = __absname(pref, real_name, &array[last]); 295*0Sstevel@tonic-gate __os_freestr(real_name); 296*0Sstevel@tonic-gate if (ret != 0) 297*0Sstevel@tonic-gate goto err2; 298*0Sstevel@tonic-gate } else if ((p = __db_rpath(real_name)) != NULL) { 299*0Sstevel@tonic-gate ret = __os_strdup(p + 1, &array[last]); 300*0Sstevel@tonic-gate __os_freestr(real_name); 301*0Sstevel@tonic-gate if (ret != 0) 302*0Sstevel@tonic-gate goto err2; 303*0Sstevel@tonic-gate } else 304*0Sstevel@tonic-gate array[last] = real_name; 305*0Sstevel@tonic-gate ++last; 306*0Sstevel@tonic-gate } 307*0Sstevel@tonic-gate 308*0Sstevel@tonic-gate /* NULL-terminate the list. */ 309*0Sstevel@tonic-gate array[last] = NULL; 310*0Sstevel@tonic-gate 311*0Sstevel@tonic-gate /* Rework the memory. */ 312*0Sstevel@tonic-gate if ((ret = __usermem(&array, db_malloc)) != 0) 313*0Sstevel@tonic-gate goto err1; 314*0Sstevel@tonic-gate 315*0Sstevel@tonic-gate *listp = array; 316*0Sstevel@tonic-gate return (0); 317*0Sstevel@tonic-gate 318*0Sstevel@tonic-gate err2: /* 319*0Sstevel@tonic-gate * XXX 320*0Sstevel@tonic-gate * We've possibly inserted NULLs into the array list, so clean up a 321*0Sstevel@tonic-gate * bit so that the other error processing works. 322*0Sstevel@tonic-gate */ 323*0Sstevel@tonic-gate if (array != NULL) 324*0Sstevel@tonic-gate for (; nxt < n; ++nxt) 325*0Sstevel@tonic-gate __os_freestr(array[nxt]); 326*0Sstevel@tonic-gate /* FALLTHROUGH */ 327*0Sstevel@tonic-gate 328*0Sstevel@tonic-gate err1: if (array != NULL) { 329*0Sstevel@tonic-gate for (arrayp = array; *arrayp != NULL; ++arrayp) 330*0Sstevel@tonic-gate __os_freestr(*arrayp); 331*0Sstevel@tonic-gate __os_free(array, array_size * sizeof(char *)); 332*0Sstevel@tonic-gate } 333*0Sstevel@tonic-gate return (ret); 334*0Sstevel@tonic-gate } 335*0Sstevel@tonic-gate 336*0Sstevel@tonic-gate /* 337*0Sstevel@tonic-gate * __absname -- 338*0Sstevel@tonic-gate * Return an absolute path name for the file. 339*0Sstevel@tonic-gate */ 340*0Sstevel@tonic-gate static int 341*0Sstevel@tonic-gate __absname(pref, name, newnamep) 342*0Sstevel@tonic-gate char *pref, *name, **newnamep; 343*0Sstevel@tonic-gate { 344*0Sstevel@tonic-gate size_t l_pref, l_name; 345*0Sstevel@tonic-gate int isabspath, ret; 346*0Sstevel@tonic-gate char *newname; 347*0Sstevel@tonic-gate 348*0Sstevel@tonic-gate l_name = strlen(name); 349*0Sstevel@tonic-gate isabspath = __os_abspath(name); 350*0Sstevel@tonic-gate l_pref = isabspath ? 0 : strlen(pref); 351*0Sstevel@tonic-gate 352*0Sstevel@tonic-gate /* Malloc space for concatenating the two. */ 353*0Sstevel@tonic-gate if ((ret = __os_malloc(l_pref + l_name + 2, NULL, &newname)) != 0) 354*0Sstevel@tonic-gate return (ret); 355*0Sstevel@tonic-gate *newnamep = newname; 356*0Sstevel@tonic-gate 357*0Sstevel@tonic-gate /* Build the name. If `name' is an absolute path, ignore any prefix. */ 358*0Sstevel@tonic-gate if (!isabspath) { 359*0Sstevel@tonic-gate memcpy(newname, pref, l_pref); 360*0Sstevel@tonic-gate if (strchr(PATH_SEPARATOR, newname[l_pref - 1]) == NULL) 361*0Sstevel@tonic-gate newname[l_pref++] = PATH_SEPARATOR[0]; 362*0Sstevel@tonic-gate } 363*0Sstevel@tonic-gate memcpy(newname + l_pref, name, l_name + 1); 364*0Sstevel@tonic-gate 365*0Sstevel@tonic-gate return (0); 366*0Sstevel@tonic-gate } 367*0Sstevel@tonic-gate 368*0Sstevel@tonic-gate /* 369*0Sstevel@tonic-gate * __usermem -- 370*0Sstevel@tonic-gate * Create a single chunk of memory that holds the returned information. 371*0Sstevel@tonic-gate * If the user has their own malloc routine, use it. 372*0Sstevel@tonic-gate */ 373*0Sstevel@tonic-gate static int 374*0Sstevel@tonic-gate __usermem(listp, db_malloc) 375*0Sstevel@tonic-gate char ***listp; 376*0Sstevel@tonic-gate void *(*db_malloc) __P((size_t)); 377*0Sstevel@tonic-gate { 378*0Sstevel@tonic-gate size_t len; 379*0Sstevel@tonic-gate int ret; 380*0Sstevel@tonic-gate char **array, **arrayp, **orig, *strp; 381*0Sstevel@tonic-gate 382*0Sstevel@tonic-gate /* Find out how much space we need. */ 383*0Sstevel@tonic-gate for (len = 0, orig = *listp; *orig != NULL; ++orig) 384*0Sstevel@tonic-gate len += sizeof(char *) + strlen(*orig) + 1; 385*0Sstevel@tonic-gate len += sizeof(char *); 386*0Sstevel@tonic-gate 387*0Sstevel@tonic-gate /* Allocate it and set up the pointers. */ 388*0Sstevel@tonic-gate if ((ret = __os_malloc(len, db_malloc, &array)) != 0) 389*0Sstevel@tonic-gate return (ret); 390*0Sstevel@tonic-gate 391*0Sstevel@tonic-gate strp = (char *)(array + (orig - *listp) + 1); 392*0Sstevel@tonic-gate 393*0Sstevel@tonic-gate /* Copy the original information into the new memory. */ 394*0Sstevel@tonic-gate for (orig = *listp, arrayp = array; *orig != NULL; ++orig, ++arrayp) { 395*0Sstevel@tonic-gate len = strlen(*orig); 396*0Sstevel@tonic-gate memcpy(strp, *orig, len + 1); 397*0Sstevel@tonic-gate *arrayp = strp; 398*0Sstevel@tonic-gate strp += len + 1; 399*0Sstevel@tonic-gate 400*0Sstevel@tonic-gate __os_freestr(*orig); 401*0Sstevel@tonic-gate } 402*0Sstevel@tonic-gate 403*0Sstevel@tonic-gate /* NULL-terminate the list. */ 404*0Sstevel@tonic-gate *arrayp = NULL; 405*0Sstevel@tonic-gate 406*0Sstevel@tonic-gate __os_free(*listp, 0); 407*0Sstevel@tonic-gate *listp = array; 408*0Sstevel@tonic-gate 409*0Sstevel@tonic-gate return (0); 410*0Sstevel@tonic-gate } 411*0Sstevel@tonic-gate 412*0Sstevel@tonic-gate static int 413*0Sstevel@tonic-gate __cmpfunc(p1, p2) 414*0Sstevel@tonic-gate const void *p1, *p2; 415*0Sstevel@tonic-gate { 416*0Sstevel@tonic-gate return (strcmp(*((char * const *)p1), *((char * const *)p2))); 417*0Sstevel@tonic-gate } 418