1133359Sobrien/* 2133359Sobrien * Copyright (c) Christos Zoulas 2003. 3133359Sobrien * All Rights Reserved. 4186691Sobrien * 5133359Sobrien * Redistribution and use in source and binary forms, with or without 6133359Sobrien * modification, are permitted provided that the following conditions 7133359Sobrien * are met: 8133359Sobrien * 1. Redistributions of source code must retain the above copyright 9133359Sobrien * notice immediately at the beginning of the file, without modification, 10133359Sobrien * this list of conditions, and the following disclaimer. 11133359Sobrien * 2. Redistributions in binary form must reproduce the above copyright 12133359Sobrien * notice, this list of conditions and the following disclaimer in the 13133359Sobrien * documentation and/or other materials provided with the distribution. 14186691Sobrien * 15133359Sobrien * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16133359Sobrien * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17133359Sobrien * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18133359Sobrien * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 19133359Sobrien * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20133359Sobrien * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21133359Sobrien * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22133359Sobrien * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23133359Sobrien * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24133359Sobrien * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25133359Sobrien * SUCH DAMAGE. 26133359Sobrien */ 27133359Sobrien 28234449Sobrien#ifdef WIN32 29234449Sobrien#include <windows.h> 30234449Sobrien#include <shlwapi.h> 31234449Sobrien#endif 32234449Sobrien 33133359Sobrien#include "file.h" 34191771Sobrien 35191771Sobrien#ifndef lint 36234449SobrienFILE_RCSID("@(#)$File: magic.c,v 1.74 2011/05/26 01:27:59 christos Exp $") 37191771Sobrien#endif /* lint */ 38191771Sobrien 39133359Sobrien#include "magic.h" 40133359Sobrien 41133359Sobrien#include <stdlib.h> 42133359Sobrien#include <unistd.h> 43133359Sobrien#include <string.h> 44133359Sobrien#ifdef QUICK 45133359Sobrien#include <sys/mman.h> 46133359Sobrien#endif 47186691Sobrien#ifdef HAVE_LIMITS_H 48169942Sobrien#include <limits.h> /* for PIPE_BUF */ 49186691Sobrien#endif 50133359Sobrien 51133359Sobrien#if defined(HAVE_UTIMES) 52133359Sobrien# include <sys/time.h> 53133359Sobrien#elif defined(HAVE_UTIME) 54133359Sobrien# if defined(HAVE_SYS_UTIME_H) 55133359Sobrien# include <sys/utime.h> 56133359Sobrien# elif defined(HAVE_UTIME_H) 57133359Sobrien# include <utime.h> 58133359Sobrien# endif 59133359Sobrien#endif 60133359Sobrien 61133359Sobrien#ifdef HAVE_UNISTD_H 62133359Sobrien#include <unistd.h> /* for read() */ 63133359Sobrien#endif 64133359Sobrien 65186691Sobrien#ifndef PIPE_BUF 66186691Sobrien/* Get the PIPE_BUF from pathconf */ 67186691Sobrien#ifdef _PC_PIPE_BUF 68186691Sobrien#define PIPE_BUF pathconf(".", _PC_PIPE_BUF) 69186691Sobrien#else 70186691Sobrien#define PIPE_BUF 512 71186691Sobrien#endif 72186691Sobrien#endif 73186691Sobrien 74133359Sobrienprivate void free_mlist(struct mlist *); 75210761Srpaulo#ifndef COMPILE_ONLY 76133359Sobrienprivate void close_and_restore(const struct magic_set *, const char *, int, 77133359Sobrien const struct stat *); 78186691Sobrienprivate int unreadable_info(struct magic_set *, mode_t, const char *); 79234449Sobrienprivate const char* get_default_magic(void); 80175296Sobrienprivate const char *file_or_fd(struct magic_set *, const char *, int); 81175296Sobrien#endif 82133359Sobrien 83159764Sobrien#ifndef STDIN_FILENO 84159764Sobrien#define STDIN_FILENO 0 85159764Sobrien#endif 86159764Sobrien 87234449Sobrienprivate const char * 88234449Sobrienget_default_magic(void) 89234449Sobrien{ 90234449Sobrien static const char hmagic[] = "/.magic/magic.mgc"; 91234449Sobrien static char *default_magic; 92234449Sobrien char *home, *hmagicpath; 93234449Sobrien 94234449Sobrien#ifndef WIN32 95234449Sobrien struct stat st; 96234449Sobrien 97234449Sobrien if (default_magic) { 98234449Sobrien free(default_magic); 99234449Sobrien default_magic = NULL; 100234449Sobrien } 101234449Sobrien if ((home = getenv("HOME")) == NULL) 102234449Sobrien return MAGIC; 103234449Sobrien 104234449Sobrien if (asprintf(&hmagicpath, "%s/.magic", home) < 0) 105234449Sobrien return MAGIC; 106234449Sobrien if (stat(hmagicpath, &st) == -1) 107234449Sobrien goto out; 108234449Sobrien if (S_ISDIR(st.st_mode)) { 109234449Sobrien free(hmagicpath); 110234449Sobrien if (asprintf(&hmagicpath, "%s/%s", home, hmagic) < 0) 111234449Sobrien return MAGIC; 112234449Sobrien if (access(hmagicpath, R_OK) == -1) 113234449Sobrien goto out; 114234449Sobrien } 115234449Sobrien 116234449Sobrien if (asprintf(&default_magic, "%s:%s", hmagicpath, MAGIC) < 0) 117234449Sobrien goto out; 118234449Sobrien free(hmagicpath); 119234449Sobrien return default_magic; 120234449Sobrienout: 121234449Sobrien default_magic = NULL; 122234449Sobrien free(hmagicpath); 123234449Sobrien return MAGIC; 124234449Sobrien#else 125234449Sobrien char *hmagicp = hmagicpath; 126234449Sobrien char *tmppath = NULL; 127234449Sobrien 128234449Sobrien#define APPENDPATH() \ 129234449Sobrien do { \ 130234449Sobrien if (tmppath && access(tmppath, R_OK) != -1) { \ 131234449Sobrien if (hmagicpath == NULL) \ 132234449Sobrien hmagicpath = tmppath; \ 133234449Sobrien else { \ 134234449Sobrien if (asprintf(&hmagicp, "%s%c%s", hmagicpath, \ 135234449Sobrien PATHSEP, tmppath) >= 0) { \ 136234449Sobrien free(hmagicpath); \ 137234449Sobrien hmagicpath = hmagicp; \ 138234449Sobrien } \ 139234449Sobrien free(tmppath); \ 140234449Sobrien } \ 141234449Sobrien tmppath = NULL; \ 142234449Sobrien } \ 143234449Sobrien } while (/*CONSTCOND*/0) 144234449Sobrien 145234449Sobrien if (default_magic) { 146234449Sobrien free(default_magic); 147234449Sobrien default_magic = NULL; 148234449Sobrien } 149234449Sobrien 150234449Sobrien /* First, try to get user-specific magic file */ 151234449Sobrien if ((home = getenv("LOCALAPPDATA")) == NULL) { 152234449Sobrien if ((home = getenv("USERPROFILE")) != NULL) 153234449Sobrien if (asprintf(&tmppath, 154234449Sobrien "%s/Local Settings/Application Data%s", home, 155234449Sobrien hmagic) < 0) 156234449Sobrien tmppath = NULL; 157234449Sobrien } else { 158234449Sobrien if (asprintf(&tmppath, "%s%s", home, hmagic) < 0) 159234449Sobrien tmppath = NULL; 160234449Sobrien } 161234449Sobrien 162234449Sobrien APPENDPATH(); 163234449Sobrien 164234449Sobrien /* Second, try to get a magic file from Common Files */ 165234449Sobrien if ((home = getenv("COMMONPROGRAMFILES")) != NULL) { 166234449Sobrien if (asprintf(&tmppath, "%s%s", home, hmagic) >= 0) 167234449Sobrien APPENDPATH(); 168234449Sobrien } 169234449Sobrien 170234449Sobrien /* Third, try to get magic file relative to dll location */ 171234449Sobrien LPTSTR dllpath = malloc(sizeof(*dllpath) * (MAX_PATH + 1)); 172234449Sobrien dllpath[MAX_PATH] = 0; /* just in case long path gets truncated and not null terminated */ 173234449Sobrien if (GetModuleFileNameA(NULL, dllpath, MAX_PATH)){ 174234449Sobrien PathRemoveFileSpecA(dllpath); 175234449Sobrien if (strlen(dllpath) > 3 && 176234449Sobrien stricmp(&dllpath[strlen(dllpath) - 3], "bin") == 0) { 177234449Sobrien if (asprintf(&tmppath, 178234449Sobrien "%s/../share/misc/magic.mgc", dllpath) >= 0) 179234449Sobrien APPENDPATH(); 180234449Sobrien } else { 181234449Sobrien if (asprintf(&tmppath, 182234449Sobrien "%s/share/misc/magic.mgc", dllpath) >= 0) 183234449Sobrien APPENDPATH(); 184234449Sobrien else if (asprintf(&tmppath, 185234449Sobrien "%s/magic.mgc", dllpath) >= 0) 186234449Sobrien APPENDPATH(); 187234449Sobrien } 188234449Sobrien } 189234449Sobrien 190234449Sobrien /* Don't put MAGIC constant - it likely points to a file within MSys 191234449Sobrien tree */ 192234449Sobrien default_magic = hmagicpath; 193234449Sobrien return default_magic; 194234449Sobrien#endif 195234449Sobrien} 196234449Sobrien 197234449Sobrienpublic const char * 198234449Sobrienmagic_getpath(const char *magicfile, int action) 199234449Sobrien{ 200234449Sobrien if (magicfile != NULL) 201234449Sobrien return magicfile; 202234449Sobrien 203234449Sobrien magicfile = getenv("MAGIC"); 204234449Sobrien if (magicfile != NULL) 205234449Sobrien return magicfile; 206234449Sobrien 207234449Sobrien return action == FILE_LOAD ? get_default_magic() : MAGIC; 208234449Sobrien} 209234449Sobrien 210133359Sobrienpublic struct magic_set * 211133359Sobrienmagic_open(int flags) 212133359Sobrien{ 213133359Sobrien struct magic_set *ms; 214186691Sobrien size_t len; 215133359Sobrien 216234449Sobrien if ((ms = CAST(struct magic_set *, calloc((size_t)1, 217186691Sobrien sizeof(struct magic_set)))) == NULL) 218133359Sobrien return NULL; 219133359Sobrien 220133359Sobrien if (magic_setflags(ms, flags) == -1) { 221133359Sobrien errno = EINVAL; 222186691Sobrien goto free; 223133359Sobrien } 224133359Sobrien 225186691Sobrien ms->o.buf = ms->o.pbuf = NULL; 226186691Sobrien len = (ms->c.len = 10) * sizeof(*ms->c.li); 227139368Sobrien 228186691Sobrien if ((ms->c.li = CAST(struct level_info *, malloc(len))) == NULL) 229186691Sobrien goto free; 230139368Sobrien 231191771Sobrien ms->event_flags = 0; 232133359Sobrien ms->error = -1; 233133359Sobrien ms->mlist = NULL; 234169962Sobrien ms->file = "unknown"; 235169962Sobrien ms->line = 0; 236133359Sobrien return ms; 237186691Sobrienfree: 238139368Sobrien free(ms); 239139368Sobrien return NULL; 240133359Sobrien} 241133359Sobrien 242133359Sobrienprivate void 243133359Sobrienfree_mlist(struct mlist *mlist) 244133359Sobrien{ 245133359Sobrien struct mlist *ml; 246133359Sobrien 247133359Sobrien if (mlist == NULL) 248133359Sobrien return; 249133359Sobrien 250133359Sobrien for (ml = mlist->next; ml != mlist;) { 251133359Sobrien struct mlist *next = ml->next; 252133359Sobrien struct magic *mg = ml->magic; 253133359Sobrien file_delmagic(mg, ml->mapped, ml->nmagic); 254133359Sobrien free(ml); 255133359Sobrien ml = next; 256133359Sobrien } 257133359Sobrien free(ml); 258133359Sobrien} 259133359Sobrien 260210761Srpaulo#ifndef COMPILE_ONLY 261169942Sobrienprivate int 262186691Sobrienunreadable_info(struct magic_set *ms, mode_t md, const char *file) 263169942Sobrien{ 264169942Sobrien /* We cannot open it, but we were able to stat it. */ 265186691Sobrien if (access(file, W_OK) == 0) 266169942Sobrien if (file_printf(ms, "writable, ") == -1) 267169942Sobrien return -1; 268186691Sobrien if (access(file, X_OK) == 0) 269169942Sobrien if (file_printf(ms, "executable, ") == -1) 270169942Sobrien return -1; 271169942Sobrien if (S_ISREG(md)) 272169942Sobrien if (file_printf(ms, "regular file, ") == -1) 273169942Sobrien return -1; 274169942Sobrien if (file_printf(ms, "no read permission") == -1) 275169942Sobrien return -1; 276169942Sobrien return 0; 277169942Sobrien} 278210761Srpaulo#endif 279169942Sobrien 280133359Sobrienpublic void 281169942Sobrienmagic_close(struct magic_set *ms) 282133359Sobrien{ 283133359Sobrien free_mlist(ms->mlist); 284139368Sobrien free(ms->o.pbuf); 285133359Sobrien free(ms->o.buf); 286169962Sobrien free(ms->c.li); 287133359Sobrien free(ms); 288133359Sobrien} 289133359Sobrien 290133359Sobrien/* 291133359Sobrien * load a magic file 292133359Sobrien */ 293133359Sobrienpublic int 294133359Sobrienmagic_load(struct magic_set *ms, const char *magicfile) 295133359Sobrien{ 296133359Sobrien struct mlist *ml = file_apprentice(ms, magicfile, FILE_LOAD); 297133359Sobrien if (ml) { 298133359Sobrien free_mlist(ms->mlist); 299133359Sobrien ms->mlist = ml; 300133359Sobrien return 0; 301133359Sobrien } 302133359Sobrien return -1; 303133359Sobrien} 304133359Sobrien 305133359Sobrienpublic int 306133359Sobrienmagic_compile(struct magic_set *ms, const char *magicfile) 307133359Sobrien{ 308133359Sobrien struct mlist *ml = file_apprentice(ms, magicfile, FILE_COMPILE); 309133359Sobrien free_mlist(ml); 310133359Sobrien return ml ? 0 : -1; 311133359Sobrien} 312133359Sobrien 313133359Sobrienpublic int 314133359Sobrienmagic_check(struct magic_set *ms, const char *magicfile) 315133359Sobrien{ 316133359Sobrien struct mlist *ml = file_apprentice(ms, magicfile, FILE_CHECK); 317133359Sobrien free_mlist(ml); 318133359Sobrien return ml ? 0 : -1; 319133359Sobrien} 320133359Sobrien 321234449Sobrienpublic int 322234449Sobrienmagic_list(struct magic_set *ms, const char *magicfile) 323234449Sobrien{ 324234449Sobrien struct mlist *ml = file_apprentice(ms, magicfile, FILE_LIST); 325234449Sobrien free_mlist(ml); 326234449Sobrien return ml ? 0 : -1; 327234449Sobrien} 328234449Sobrien 329210761Srpaulo#ifndef COMPILE_ONLY 330133359Sobrienprivate void 331133359Sobrienclose_and_restore(const struct magic_set *ms, const char *name, int fd, 332133359Sobrien const struct stat *sb) 333133359Sobrien{ 334159764Sobrien if (fd == STDIN_FILENO) 335159764Sobrien return; 336133359Sobrien (void) close(fd); 337159764Sobrien 338159764Sobrien if ((ms->flags & MAGIC_PRESERVE_ATIME) != 0) { 339133359Sobrien /* 340133359Sobrien * Try to restore access, modification times if read it. 341133359Sobrien * This is really *bad* because it will modify the status 342133359Sobrien * time of the file... And of course this will affect 343133359Sobrien * backup programs 344133359Sobrien */ 345133359Sobrien#ifdef HAVE_UTIMES 346133359Sobrien struct timeval utsbuf[2]; 347186691Sobrien (void)memset(utsbuf, 0, sizeof(utsbuf)); 348133359Sobrien utsbuf[0].tv_sec = sb->st_atime; 349133359Sobrien utsbuf[1].tv_sec = sb->st_mtime; 350133359Sobrien 351133359Sobrien (void) utimes(name, utsbuf); /* don't care if loses */ 352133359Sobrien#elif defined(HAVE_UTIME_H) || defined(HAVE_SYS_UTIME_H) 353133359Sobrien struct utimbuf utbuf; 354133359Sobrien 355191771Sobrien (void)memset(&utbuf, 0, sizeof(utbuf)); 356133359Sobrien utbuf.actime = sb->st_atime; 357133359Sobrien utbuf.modtime = sb->st_mtime; 358133359Sobrien (void) utime(name, &utbuf); /* don't care if loses */ 359133359Sobrien#endif 360133359Sobrien } 361133359Sobrien} 362133359Sobrien 363175296Sobrien 364133359Sobrien/* 365175296Sobrien * find type of descriptor 366175296Sobrien */ 367175296Sobrienpublic const char * 368175296Sobrienmagic_descriptor(struct magic_set *ms, int fd) 369175296Sobrien{ 370175296Sobrien return file_or_fd(ms, NULL, fd); 371175296Sobrien} 372175296Sobrien 373175296Sobrien/* 374133359Sobrien * find type of named file 375133359Sobrien */ 376133359Sobrienpublic const char * 377133359Sobrienmagic_file(struct magic_set *ms, const char *inname) 378133359Sobrien{ 379175296Sobrien return file_or_fd(ms, inname, STDIN_FILENO); 380175296Sobrien} 381175296Sobrien 382175296Sobrienprivate const char * 383175296Sobrienfile_or_fd(struct magic_set *ms, const char *inname, int fd) 384175296Sobrien{ 385159764Sobrien int rv = -1; 386159764Sobrien unsigned char *buf; 387133359Sobrien struct stat sb; 388133359Sobrien ssize_t nbytes = 0; /* number of bytes read from a datafile */ 389169942Sobrien int ispipe = 0; 390133359Sobrien 391159764Sobrien /* 392159764Sobrien * one extra for terminating '\0', and 393159764Sobrien * some overlapping space for matches near EOF 394159764Sobrien */ 395159764Sobrien#define SLOP (1 + sizeof(union VALUETYPE)) 396186691Sobrien if ((buf = CAST(unsigned char *, malloc(HOWMANY + SLOP))) == NULL) 397133359Sobrien return NULL; 398133359Sobrien 399159764Sobrien if (file_reset(ms) == -1) 400159764Sobrien goto done; 401159764Sobrien 402133359Sobrien switch (file_fsmagic(ms, inname, &sb)) { 403169942Sobrien case -1: /* error */ 404159764Sobrien goto done; 405169942Sobrien case 0: /* nothing found */ 406133359Sobrien break; 407169942Sobrien default: /* matched it and printed type */ 408159764Sobrien rv = 0; 409159764Sobrien goto done; 410133359Sobrien } 411133359Sobrien 412169942Sobrien if (inname == NULL) { 413169942Sobrien if (fstat(fd, &sb) == 0 && S_ISFIFO(sb.st_mode)) 414169942Sobrien ispipe = 1; 415169942Sobrien } else { 416169942Sobrien int flags = O_RDONLY|O_BINARY; 417169942Sobrien 418169942Sobrien if (stat(inname, &sb) == 0 && S_ISFIFO(sb.st_mode)) { 419234449Sobrien#ifdef O_NONBLOCK 420169942Sobrien flags |= O_NONBLOCK; 421234449Sobrien#endif 422169942Sobrien ispipe = 1; 423169942Sobrien } 424169942Sobrien 425169942Sobrien errno = 0; 426169942Sobrien if ((fd = open(inname, flags)) < 0) { 427192350Sdelphij if (unreadable_info(ms, sb.st_mode, inname) == -1) 428175296Sobrien goto done; 429192350Sdelphij rv = 0; 430192350Sdelphij goto done; 431169942Sobrien } 432169942Sobrien#ifdef O_NONBLOCK 433169942Sobrien if ((flags = fcntl(fd, F_GETFL)) != -1) { 434169942Sobrien flags &= ~O_NONBLOCK; 435169942Sobrien (void)fcntl(fd, F_SETFL, flags); 436169942Sobrien } 437169942Sobrien#endif 438133359Sobrien } 439133359Sobrien 440133359Sobrien /* 441133359Sobrien * try looking at the first HOWMANY bytes 442133359Sobrien */ 443169942Sobrien if (ispipe) { 444169942Sobrien ssize_t r = 0; 445169942Sobrien 446169942Sobrien while ((r = sread(fd, (void *)&buf[nbytes], 447169962Sobrien (size_t)(HOWMANY - nbytes), 1)) > 0) { 448169942Sobrien nbytes += r; 449169942Sobrien if (r < PIPE_BUF) break; 450169942Sobrien } 451169942Sobrien 452169942Sobrien if (nbytes == 0) { 453169942Sobrien /* We can not read it, but we were able to stat it. */ 454186691Sobrien if (unreadable_info(ms, sb.st_mode, inname) == -1) 455169942Sobrien goto done; 456169942Sobrien rv = 0; 457169942Sobrien goto done; 458169942Sobrien } 459169942Sobrien 460169942Sobrien } else { 461169942Sobrien if ((nbytes = read(fd, (char *)buf, HOWMANY)) == -1) { 462169942Sobrien file_error(ms, errno, "cannot read `%s'", inname); 463169942Sobrien goto done; 464169942Sobrien } 465133359Sobrien } 466133359Sobrien 467175296Sobrien (void)memset(buf + nbytes, 0, SLOP); /* NUL terminate */ 468175296Sobrien if (file_buffer(ms, fd, inname, buf, (size_t)nbytes) == -1) 469175296Sobrien goto done; 470159764Sobrien rv = 0; 471133359Sobriendone: 472159764Sobrien free(buf); 473133359Sobrien close_and_restore(ms, inname, fd, &sb); 474159764Sobrien return rv == 0 ? file_getbuffer(ms) : NULL; 475133359Sobrien} 476133359Sobrien 477133359Sobrien 478133359Sobrienpublic const char * 479133359Sobrienmagic_buffer(struct magic_set *ms, const void *buf, size_t nb) 480133359Sobrien{ 481133359Sobrien if (file_reset(ms) == -1) 482133359Sobrien return NULL; 483133359Sobrien /* 484133359Sobrien * The main work is done here! 485186691Sobrien * We have the file name and/or the data buffer to be identified. 486133359Sobrien */ 487169962Sobrien if (file_buffer(ms, -1, NULL, buf, nb) == -1) { 488133359Sobrien return NULL; 489133359Sobrien } 490133359Sobrien return file_getbuffer(ms); 491133359Sobrien} 492210761Srpaulo#endif /* COMPILE_ONLY */ 493133359Sobrien 494133359Sobrienpublic const char * 495133359Sobrienmagic_error(struct magic_set *ms) 496133359Sobrien{ 497191771Sobrien return (ms->event_flags & EVENT_HAD_ERR) ? ms->o.buf : NULL; 498133359Sobrien} 499133359Sobrien 500133359Sobrienpublic int 501133359Sobrienmagic_errno(struct magic_set *ms) 502133359Sobrien{ 503191771Sobrien return (ms->event_flags & EVENT_HAD_ERR) ? ms->error : 0; 504133359Sobrien} 505133359Sobrien 506133359Sobrienpublic int 507133359Sobrienmagic_setflags(struct magic_set *ms, int flags) 508133359Sobrien{ 509133359Sobrien#if !defined(HAVE_UTIME) && !defined(HAVE_UTIMES) 510133359Sobrien if (flags & MAGIC_PRESERVE_ATIME) 511133359Sobrien return -1; 512133359Sobrien#endif 513133359Sobrien ms->flags = flags; 514133359Sobrien return 0; 515133359Sobrien} 516