1 /*****************************************************************************
2 * libc.c: Extra libc function for some systems.
3 *****************************************************************************
4 * Copyright (C) 2002-2006 the VideoLAN team
7 * Authors: Jon Lech Johansen <jon-vl@nanocrew.net>
8 * Samuel Hocevar <sam@zoy.org>
9 * Gildas Bazin <gbazin@videolan.org>
10 * Derk-Jan Hartman <hartman at videolan dot org>
11 * Christophe Massiot <massiot@via.ecp.fr>
12 * Rémi Denis-Courmont <rem à videolan.org>
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
27 *****************************************************************************/
28 #include <string.h> /* strdup() */
39 #if defined(HAVE_ICONV)
48 # include <sys/time.h>
51 # include <sys/wait.h>
54 #if defined(WIN32) || defined(UNDER_CE)
55 # define WIN32_LEAN_AND_MEAN
60 # define strcoll strcmp
63 /*****************************************************************************
64 * getenv: just in case, but it should never be called
65 *****************************************************************************/
66 #if !defined( HAVE_GETENV )
67 char *vlc_getenv( const char *name )
73 /*****************************************************************************
74 * strdup: returns a malloc'd copy of a string
75 *****************************************************************************/
76 #if !defined( HAVE_STRDUP )
77 char *vlc_strdup( const char *string )
79 return strndup( string, strlen( string ) );
83 /*****************************************************************************
84 * strndup: returns a malloc'd copy of at most n bytes of string
85 * Does anyone know whether or not it will be present in Jaguar?
86 *****************************************************************************/
87 #if !defined( HAVE_STRNDUP )
88 char *vlc_strndup( const char *string, size_t n )
91 size_t len = strlen( string );
93 len = __MIN( len, n );
94 psz = (char*)malloc( len + 1 );
98 memcpy( (void*)psz, (const void*)string, len );
106 /*****************************************************************************
107 * strcasecmp: compare two strings ignoring case
108 *****************************************************************************/
109 #if !defined( HAVE_STRCASECMP ) && !defined( HAVE_STRICMP )
110 int vlc_strcasecmp( const char *s1, const char *s2 )
113 if( !s1 || !s2 ) return -1;
120 if( c1 != c2 ) return (c1 < c2 ? -1 : 1);
124 if( !*s1 && !*s2 ) return 0;
125 else return (*s1 ? 1 : -1);
129 /*****************************************************************************
130 * strncasecmp: compare n chars from two strings ignoring case
131 *****************************************************************************/
132 #if !defined( HAVE_STRNCASECMP ) && !defined( HAVE_STRNICMP )
133 int vlc_strncasecmp( const char *s1, const char *s2, size_t n )
136 if( !s1 || !s2 ) return -1;
138 while( n > 0 && *s1 && *s2 )
143 if( c1 != c2 ) return (c1 < c2 ? -1 : 1);
147 if( !n || (!*s1 && !*s2) ) return 0;
148 else return (*s1 ? 1 : -1);
152 /******************************************************************************
153 * strcasestr: find a substring (little) in another substring (big)
154 * Case sensitive. Return NULL if not found, return big if little == null
155 *****************************************************************************/
156 #if !defined( HAVE_STRCASESTR ) && !defined( HAVE_STRISTR )
157 char * vlc_strcasestr( const char *psz_big, const char *psz_little )
159 char *p_pos = (char *)psz_big;
161 if( !psz_big || !psz_little || !*psz_little ) return p_pos;
165 if( toupper( *p_pos ) == toupper( *psz_little ) )
167 char * psz_cur1 = p_pos + 1;
168 char * psz_cur2 = (char *)psz_little + 1;
169 while( *psz_cur1 && *psz_cur2 &&
170 toupper( *psz_cur1 ) == toupper( *psz_cur2 ) )
175 if( !*psz_cur2 ) return p_pos;
183 /*****************************************************************************
185 *****************************************************************************/
186 #if !defined(HAVE_VASPRINTF) || defined(__APPLE__) || defined(SYS_BEOS)
187 int vlc_vasprintf(char **strp, const char *fmt, va_list ap)
189 /* Guess we need no more than 100 bytes. */
191 char *p = malloc( i_size );
202 /* Try to print in the allocated space. */
203 n = vsnprintf( p, i_size, fmt, ap );
205 /* If that worked, return the string. */
206 if (n > -1 && n < i_size)
211 /* Else try again with more space. */
212 if (n > -1) /* glibc 2.1 */
214 i_size = n+1; /* precisely what is needed */
218 i_size *= 2; /* twice the old size */
220 if( (p = realloc( p, i_size ) ) == NULL)
229 /*****************************************************************************
231 *****************************************************************************/
232 #if !defined(HAVE_ASPRINTF) || defined(__APPLE__) || defined(SYS_BEOS)
233 int vlc_asprintf( char **strp, const char *fmt, ... )
238 va_start( args, fmt );
239 i_ret = vasprintf( strp, fmt, args );
246 /*****************************************************************************
247 * atof: convert a string to a double.
248 *****************************************************************************/
249 #if !defined( HAVE_ATOF )
250 double vlc_atof( const char *nptr )
254 int i_len = strlen( nptr ) + 1;
256 psz_tmp = malloc( i_len * sizeof(wchar_t) );
257 MultiByteToWideChar( CP_ACP, 0, nptr, -1, psz_tmp, i_len );
258 f_result = wcstod( psz_tmp, NULL );
265 /*****************************************************************************
266 * strtoll: convert a string to a 64 bits int.
267 *****************************************************************************/
268 #if !defined( HAVE_STRTOLL )
269 int64_t vlc_strtoll( const char *nptr, char **endptr, int base )
272 int sign = 1, newbase = base ? base : 10;
274 while( isspace(*nptr) ) nptr++;
282 /* Try to detect base */
295 if( base && newbase != base )
297 if( endptr ) *endptr = (char *)nptr;
304 while( *nptr >= '0' && *nptr <= '9' )
307 i_value += ( *nptr++ - '0' );
309 if( endptr ) *endptr = (char *)nptr;
313 while( (*nptr >= '0' && *nptr <= '9') ||
314 (*nptr >= 'a' && *nptr <= 'f') ||
315 (*nptr >= 'A' && *nptr <= 'F') )
318 if(*nptr >= '0' && *nptr <= '9') i_valc = *nptr - '0';
319 else if(*nptr >= 'a' && *nptr <= 'f') i_valc = *nptr - 'a' +10;
320 else if(*nptr >= 'A' && *nptr <= 'F') i_valc = *nptr - 'A' +10;
325 if( endptr ) *endptr = (char *)nptr;
329 i_value = strtol( nptr, endptr, newbase );
333 return i_value * sign;
337 /*****************************************************************************
338 * atoll: convert a string to a 64 bits int.
339 *****************************************************************************/
340 #if !defined( HAVE_ATOLL )
341 int64_t vlc_atoll( const char *nptr )
343 return strtoll( nptr, (char **)NULL, 10 );
347 /*****************************************************************************
348 * lldiv: returns quotient and remainder
349 *****************************************************************************/
350 #if defined(SYS_BEOS) \
351 || (defined (__FreeBSD__) && (__FreeBSD__ < 5))
352 lldiv_t vlc_lldiv( long long numer, long long denom )
355 d.quot = numer / denom;
356 d.rem = numer % denom;
363 * Copy a string to a sized buffer. The result is always nul-terminated
364 * (contrary to strncpy()).
366 * @param dest destination buffer
367 * @param src string to be copied
368 * @param len maximum number of characters to be copied plus one for the
371 * @return strlen(src)
374 extern size_t vlc_strlcpy (char *tgt, const char *src, size_t bufsize)
378 for (length = 1; (length < bufsize) && *src; length++)
391 /*****************************************************************************
392 * vlc_*dir_wrapper: wrapper under Windows to return the list of drive letters
393 * when called with an empty argument or just '\'
394 *****************************************************************************/
395 #if defined(WIN32) && !defined(UNDER_CE)
398 typedef struct vlc_DIR
402 struct _wdirent dd_dir;
403 vlc_bool_t b_insert_back;
406 void *vlc_wopendir( const wchar_t *wpath )
411 if ( wpath == NULL || wpath[0] == '\0'
412 || (wcscmp (wpath, L"\\") == 0) )
414 /* Special mode to list drive letters */
415 p_dir = malloc( sizeof(vlc_DIR) );
416 p_dir->p_real_dir = NULL;
417 p_dir->i_drives = GetLogicalDrives();
418 return (void *)p_dir;
421 p_real_dir = _wopendir( wpath );
422 if ( p_real_dir == NULL )
425 p_dir = malloc( sizeof(vlc_DIR) );
426 p_dir->p_real_dir = p_real_dir;
428 assert (wpath[0]); // wpath[1] is defined
429 p_dir->b_insert_back = !wcscmp (wpath + 1, L":\\");
430 return (void *)p_dir;
433 struct _wdirent *vlc_wreaddir( void *_p_dir )
435 vlc_DIR *p_dir = (vlc_DIR *)_p_dir;
439 if ( p_dir->p_real_dir != NULL )
441 if ( p_dir->b_insert_back )
443 /* Adds "..", gruik! */
444 p_dir->dd_dir.d_ino = 0;
445 p_dir->dd_dir.d_reclen = 0;
446 p_dir->dd_dir.d_namlen = 2;
447 wcscpy( p_dir->dd_dir.d_name, L".." );
448 p_dir->b_insert_back = VLC_FALSE;
449 return &p_dir->dd_dir;
452 return _wreaddir( p_dir->p_real_dir );
455 /* Drive letters mode */
456 i_drives = p_dir->i_drives;
458 return NULL; /* end */
460 for ( i = 0; i < sizeof(DWORD)*8; i++, i_drives >>= 1 )
461 if ( i_drives & 1 ) break;
464 return NULL; /* this should not happen */
466 swprintf( p_dir->dd_dir.d_name, L"%c:\\", 'A' + i );
467 p_dir->dd_dir.d_namlen = wcslen(p_dir->dd_dir.d_name);
468 p_dir->i_drives &= ~(1UL << i);
469 return &p_dir->dd_dir;
472 int vlc_wclosedir( void *_p_dir )
474 vlc_DIR *p_dir = (vlc_DIR *)_p_dir;
477 if ( p_dir->p_real_dir != NULL )
478 i_ret = _wclosedir( p_dir->p_real_dir );
485 /*****************************************************************************
486 * scandir: scan a directory alpha-sorted
487 *****************************************************************************/
488 #if !defined( HAVE_SCANDIR )
489 /* FIXME: I suspect this is dead code -> utf8_scandir */
495 int vlc_alphasort( const struct dirent **a, const struct dirent **b )
497 return strcoll( (*a)->d_name, (*b)->d_name );
500 int vlc_scandir( const char *name, struct dirent ***namelist,
501 int (*filter) ( const struct dirent * ),
502 int (*compar) ( const struct dirent **,
503 const struct dirent ** ) )
506 struct dirent * p_content;
507 struct dirent ** pp_list;
510 if( !namelist || !( p_dir = opendir( name ) ) ) return -1;
514 while( ( p_content = readdir( p_dir ) ) )
516 if( filter && !filter( p_content ) )
520 pp_list = realloc( pp_list, ( ret + 1 ) * sizeof( struct dirent * ) );
521 size = sizeof( struct dirent ) + strlen( p_content->d_name ) + 1;
522 pp_list[ret] = malloc( size );
523 memcpy( pp_list[ret], p_content, size );
531 qsort( pp_list, ret, sizeof( struct dirent * ),
532 (int (*)(const void *, const void *)) compar );
540 #if defined (WIN32) || !defined (HAVE_SHARED_LIBVLC)
541 /*****************************************************************************
542 * dgettext: gettext for plugins.
543 *****************************************************************************/
544 char *vlc_dgettext( const char *package, const char *msgid )
546 #if defined( ENABLE_NLS ) \
547 && ( defined(HAVE_GETTEXT) || defined(HAVE_INCLUDED_GETTEXT) )
548 return dgettext( package, msgid );
550 return (char *)msgid;
555 /*****************************************************************************
556 * count_utf8_string: returns the number of characters in the string.
557 *****************************************************************************/
558 static int count_utf8_string( const char *psz_string )
560 int i = 0, i_count = 0;
561 while( psz_string[ i ] != 0 )
563 if( ((unsigned char *)psz_string)[ i ] < 0x80UL ) i_count++;
569 /*****************************************************************************
570 * wraptext: inserts \n at convenient places to wrap the text.
571 * Returns the modified string in a new buffer.
572 *****************************************************************************/
573 char *vlc_wraptext( const char *psz_text, int i_line )
576 char *psz_line, *psz_new_text;
578 psz_line = psz_new_text = strdup( psz_text );
580 i_len = count_utf8_string( psz_text );
582 while( i_len > i_line )
584 /* Look if there is a newline somewhere. */
585 char *psz_parser = psz_line;
587 while( i_count <= i_line && *psz_parser != '\n' )
589 while( *((unsigned char *)psz_parser) >= 0x80UL ) psz_parser++;
593 if( *psz_parser == '\n' )
595 i_len -= (i_count + 1);
596 psz_line = psz_parser + 1;
600 /* Find the furthest space. */
601 while( psz_parser > psz_line && *psz_parser != ' ' )
603 while( *((unsigned char *)psz_parser) >= 0x80UL ) psz_parser--;
607 if( *psz_parser == ' ' )
610 i_len -= (i_count + 1);
611 psz_line = psz_parser + 1;
615 /* Wrapping has failed. Find the first space or newline */
616 while( i_count < i_len && *psz_parser != ' ' && *psz_parser != '\n' )
618 while( *((unsigned char *)psz_parser) >= 0x80UL ) psz_parser++;
622 if( i_count < i_len ) *psz_parser = '\n';
623 i_len -= (i_count + 1);
624 psz_line = psz_parser + 1;
630 /*****************************************************************************
632 *****************************************************************************/
633 vlc_iconv_t vlc_iconv_open( const char *tocode, const char *fromcode )
635 #if defined(HAVE_ICONV)
636 return iconv_open( tocode, fromcode );
642 size_t vlc_iconv( vlc_iconv_t cd, const char **inbuf, size_t *inbytesleft,
643 char **outbuf, size_t *outbytesleft )
645 #if defined(HAVE_ICONV)
646 return iconv( cd, (ICONV_CONST char **)inbuf, inbytesleft,
647 outbuf, outbytesleft );
651 if (inbytesleft == NULL || outbytesleft == NULL)
656 i_bytes = __MIN(*inbytesleft, *outbytesleft);
657 if( !inbuf || !outbuf || !i_bytes ) return (size_t)(-1);
658 memcpy( *outbuf, *inbuf, i_bytes );
661 inbytesleft -= i_bytes;
662 outbytesleft -= i_bytes;
667 int vlc_iconv_close( vlc_iconv_t cd )
669 #if defined(HAVE_ICONV)
670 return iconv_close( cd );
676 /*****************************************************************************
678 * (adapted from libavcodec, author Michael Niedermayer <michaelni@gmx.at>)
679 *****************************************************************************/
680 vlc_bool_t vlc_ureduce( unsigned *pi_dst_nom, unsigned *pi_dst_den,
681 uint64_t i_nom, uint64_t i_den, uint64_t i_max )
683 vlc_bool_t b_exact = 1;
693 i_gcd = GCD( i_nom, i_den );
697 if( i_max == 0 ) i_max = I64C(0xFFFFFFFF);
699 if( i_nom > i_max || i_den > i_max )
701 uint64_t i_a0_num = 0, i_a0_den = 1, i_a1_num = 1, i_a1_den = 0;
706 uint64_t i_x = i_nom / i_den;
707 uint64_t i_a2n = i_x * i_a1_num + i_a0_num;
708 uint64_t i_a2d = i_x * i_a1_den + i_a0_den;
710 if( i_a2n > i_max || i_a2d > i_max ) break;
714 i_a0_num = i_a1_num; i_a0_den = i_a1_den;
715 i_a1_num = i_a2n; i_a1_den = i_a2d;
716 if( i_nom == 0 ) break;
717 i_x = i_nom; i_nom = i_den; i_den = i_x;
729 /*************************************************************************
730 * vlc_parse_cmdline: Command line parsing into elements.
732 * The command line is composed of space/tab separated arguments.
733 * Quotes can be used as argument delimiters and a backslash can be used to
735 *************************************************************************/
736 static void find_end_quote( char **s, char **ppsz_parser, int i_quote )
745 (*ppsz_parser)++; (*s)++;
748 else if( **s == '"' || **s == '\'' )
750 /* Preceeded by a number of '\' which we erase. */
751 *ppsz_parser -= i_bcount / 2;
754 /* '\\' followed by a '"' or '\'' */
757 (*ppsz_parser)++; (*s)++;
769 /* Different quoting */
772 (*ppsz_parser)++; (*s)++;
773 find_end_quote( s, ppsz_parser, i_quote );
775 (*ppsz_parser)++; (*s)++;
782 /* A regular character */
784 (*ppsz_parser)++; (*s)++;
790 char **vlc_parse_cmdline( const char *psz_cmdline, int *i_args )
794 char *s, *psz_parser, *psz_arg, *psz_orig;
797 if( !psz_cmdline ) return 0;
798 psz_orig = strdup( psz_cmdline );
799 psz_arg = psz_parser = s = psz_orig;
803 if( *s == '\t' || *s == ' ' )
805 /* We have a complete argument */
807 TAB_APPEND( argc, argv, strdup(psz_arg) );
809 /* Skip trailing spaces/tabs */
810 do{ s++; } while( *s == '\t' || *s == ' ' );
813 psz_arg = psz_parser = s;
816 else if( *s == '\\' )
818 *psz_parser++ = *s++;
821 else if( *s == '"' || *s == '\'' )
823 if( ( i_bcount & 1 ) == 0 )
825 /* Preceeded by an even number of '\', this is half that
826 * number of '\', plus a quote which we erase. */
828 psz_parser -= i_bcount / 2;
830 find_end_quote( &s, &psz_parser, i_quote );
835 /* Preceeded by an odd number of '\', this is half that
836 * number of '\' followed by a '"' */
837 psz_parser = psz_parser - i_bcount/2 - 1;
845 /* A regular character */
846 *psz_parser++ = *s++;
851 /* Take care of the last arg */
855 TAB_APPEND( argc, argv, strdup(psz_arg) );
858 if( i_args ) *i_args = argc;
863 /*************************************************************************
864 * vlc_execve: Execute an external program with a given environment,
865 * wait until it finishes and return its standard output
866 *************************************************************************/
867 int __vlc_execve( vlc_object_t *p_object, int i_argc, char **ppsz_argv,
868 char **ppsz_env, char *psz_cwd, char *p_in, int i_in,
869 char **pp_data, int *pi_data )
879 if ( (i_child_pid = fork()) == -1 )
881 msg_Err( p_object, "unable to fork (%s)", strerror(errno) );
885 if ( i_child_pid == 0 )
897 if ( psz_cwd != NULL )
899 execve( ppsz_argv[0], ppsz_argv, ppsz_env );
906 close( pi_stdin[0] );
909 *pp_data = malloc( 1025 ); /* +1 for \0 */
911 while ( !p_object->b_die )
914 fd_set readfds, writefds;
918 FD_ZERO( &writefds );
919 FD_SET( pi_stdout[0], &readfds );
921 FD_SET( pi_stdin[0], &writefds );
926 i_ret = select( pi_stdin[0] > pi_stdout[0] ? pi_stdin[0] + 1 :
927 pi_stdout[0] + 1, &readfds, &writefds, NULL, &tv );
930 if ( FD_ISSET( pi_stdout[0], &readfds ) )
932 ssize_t i_read = read( pi_stdout[0], &(*pp_data)[*pi_data],
937 *pp_data = realloc( *pp_data, *pi_data + 1025 );
940 if ( FD_ISSET( pi_stdin[0], &writefds ) )
942 ssize_t i_write = write( pi_stdin[0], p_in, __MIN(i_in, 1024) );
950 close( pi_stdin[0] );
954 if ( waitpid( i_child_pid, &i_status, WNOHANG ) == i_child_pid )
956 if ( WIFEXITED( i_status ) )
958 if ( WEXITSTATUS( i_status ) )
961 "child %s returned with error code %d",
962 ppsz_argv[0], WEXITSTATUS( i_status ) );
967 if ( WIFSIGNALED( i_status ) )
970 "child %s quit on signal %d", ppsz_argv[0],
971 WTERMSIG( i_status ) );
975 close( pi_stdin[0] );
976 close( pi_stdout[0] );
980 if ( i_ret < 0 && errno != EINTR )
982 msg_Warn( p_object, "select failed (%s)", strerror(errno) );
986 #elif defined( WIN32 ) && !defined( UNDER_CE )
987 SECURITY_ATTRIBUTES saAttr;
988 PROCESS_INFORMATION piProcInfo;
989 STARTUPINFO siStartInfo;
990 BOOL bFuncRetn = FALSE;
991 HANDLE hChildStdinRd, hChildStdinWr, hChildStdoutRd, hChildStdoutWr;
993 char *psz_cmd, *p_env, *p;
997 /* Set the bInheritHandle flag so pipe handles are inherited. */
998 saAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
999 saAttr.bInheritHandle = TRUE;
1000 saAttr.lpSecurityDescriptor = NULL;
1002 /* Create a pipe for the child process's STDOUT. */
1003 if ( !CreatePipe( &hChildStdoutRd, &hChildStdoutWr, &saAttr, 0 ) )
1005 msg_Err( p_object, "stdout pipe creation failed" );
1009 /* Ensure the read handle to the pipe for STDOUT is not inherited. */
1010 SetHandleInformation( hChildStdoutRd, HANDLE_FLAG_INHERIT, 0 );
1012 /* Create a pipe for the child process's STDIN. */
1013 if ( !CreatePipe( &hChildStdinRd, &hChildStdinWr, &saAttr, 0 ) )
1015 msg_Err( p_object, "stdin pipe creation failed" );
1019 /* Ensure the write handle to the pipe for STDIN is not inherited. */
1020 SetHandleInformation( hChildStdinWr, HANDLE_FLAG_INHERIT, 0 );
1022 /* Set up members of the PROCESS_INFORMATION structure. */
1023 ZeroMemory( &piProcInfo, sizeof(PROCESS_INFORMATION) );
1025 /* Set up members of the STARTUPINFO structure. */
1026 ZeroMemory( &siStartInfo, sizeof(STARTUPINFO) );
1027 siStartInfo.cb = sizeof(STARTUPINFO);
1028 siStartInfo.hStdError = hChildStdoutWr;
1029 siStartInfo.hStdOutput = hChildStdoutWr;
1030 siStartInfo.hStdInput = hChildStdinRd;
1031 siStartInfo.wShowWindow = SW_HIDE;
1032 siStartInfo.dwFlags |= STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
1034 /* Set up the command line. */
1035 psz_cmd = malloc(32768);
1038 ppsz_parser = &ppsz_argv[0];
1039 while ( ppsz_parser[0] != NULL && i_size > 0 )
1041 /* Protect the last argument with quotes ; the other arguments
1042 * are supposed to be already protected because they have been
1043 * passed as a command-line option. */
1044 if ( ppsz_parser[1] == NULL )
1046 strncat( psz_cmd, "\"", i_size );
1049 strncat( psz_cmd, *ppsz_parser, i_size );
1050 i_size -= strlen( *ppsz_parser );
1051 if ( ppsz_parser[1] == NULL )
1053 strncat( psz_cmd, "\"", i_size );
1056 strncat( psz_cmd, " ", i_size );
1061 /* Set up the environment. */
1062 p = p_env = malloc(32768);
1064 ppsz_parser = &ppsz_env[0];
1065 while ( *ppsz_parser != NULL && i_size > 0 )
1067 memcpy( p, *ppsz_parser,
1068 __MIN((int)(strlen(*ppsz_parser) + 1), i_size) );
1069 p += strlen(*ppsz_parser) + 1;
1070 i_size -= strlen(*ppsz_parser) + 1;
1075 /* Create the child process. */
1076 bFuncRetn = CreateProcess( NULL,
1077 psz_cmd, // command line
1078 NULL, // process security attributes
1079 NULL, // primary thread security attributes
1080 TRUE, // handles are inherited
1081 0, // creation flags
1084 &siStartInfo, // STARTUPINFO pointer
1085 &piProcInfo ); // receives PROCESS_INFORMATION
1090 if ( bFuncRetn == 0 )
1092 msg_Err( p_object, "child creation failed" );
1096 /* Read from a file and write its contents to a pipe. */
1097 while ( i_in > 0 && !p_object->b_die )
1100 if ( !WriteFile( hChildStdinWr, p_in, i_in, &i_written, NULL ) )
1106 /* Close the pipe handle so the child process stops reading. */
1107 CloseHandle(hChildStdinWr);
1109 /* Close the write end of the pipe before reading from the
1110 * read end of the pipe. */
1111 CloseHandle(hChildStdoutWr);
1113 /* Read output from the child process. */
1115 *pp_data = malloc( 1025 ); /* +1 for \0 */
1117 while ( !p_object->b_die )
1120 if ( !ReadFile( hChildStdoutRd, &(*pp_data)[*pi_data], 1024, &i_read,
1125 *pp_data = realloc( *pp_data, *pi_data + 1025 );
1128 while ( !p_object->b_die
1129 && !GetExitCodeProcess( piProcInfo.hProcess, &i_status )
1130 && i_status != STILL_ACTIVE )
1133 CloseHandle(piProcInfo.hProcess);
1134 CloseHandle(piProcInfo.hThread);
1138 "child %s returned with error code %ld",
1139 ppsz_argv[0], i_status );
1142 msg_Err( p_object, "vlc_execve called but no implementation is available" );
1147 (*pp_data)[*pi_data] = '\0';