1 /*****************************************************************************
2 * libc.c: Extra libc function for some systems.
3 *****************************************************************************
4 * Copyright (C) 2002 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>
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
26 *****************************************************************************/
27 #include <string.h> /* strdup() */
38 #if defined(HAVE_ICONV)
47 # include <sys/time.h>
50 # include <sys/wait.h>
53 #if defined(WIN32) || defined(UNDER_CE)
54 # define WIN32_LEAN_AND_MEAN
59 # define strcoll strcmp
62 /*****************************************************************************
63 * getenv: just in case, but it should never be called
64 *****************************************************************************/
65 #if !defined( HAVE_GETENV )
66 char *vlc_getenv( const char *name )
72 /*****************************************************************************
73 * strdup: returns a malloc'd copy of a string
74 *****************************************************************************/
75 #if !defined( HAVE_STRDUP )
76 char *vlc_strdup( const char *string )
78 return strndup( string, strlen( string ) );
82 /*****************************************************************************
83 * strndup: returns a malloc'd copy of at most n bytes of string
84 * Does anyone know whether or not it will be present in Jaguar?
85 *****************************************************************************/
86 #if !defined( HAVE_STRNDUP )
87 char *vlc_strndup( const char *string, size_t n )
90 size_t len = strlen( string );
92 len = __MIN( len, n );
93 psz = (char*)malloc( len + 1 );
97 memcpy( (void*)psz, (const void*)string, len );
105 /*****************************************************************************
106 * strcasecmp: compare two strings ignoring case
107 *****************************************************************************/
108 #if !defined( HAVE_STRCASECMP ) && !defined( HAVE_STRICMP )
109 int vlc_strcasecmp( const char *s1, const char *s2 )
112 if( !s1 || !s2 ) return -1;
119 if( c1 != c2 ) return (c1 < c2 ? -1 : 1);
123 if( !*s1 && !*s2 ) return 0;
124 else return (*s1 ? 1 : -1);
128 /*****************************************************************************
129 * strncasecmp: compare n chars from two strings ignoring case
130 *****************************************************************************/
131 #if !defined( HAVE_STRNCASECMP ) && !defined( HAVE_STRNICMP )
132 int vlc_strncasecmp( const char *s1, const char *s2, size_t n )
135 if( !s1 || !s2 ) return -1;
137 while( n > 0 && *s1 && *s2 )
142 if( c1 != c2 ) return (c1 < c2 ? -1 : 1);
146 if( !n || (!*s1 && !*s2) ) return 0;
147 else return (*s1 ? 1 : -1);
151 /******************************************************************************
152 * strcasestr: find a substring (little) in another substring (big)
153 * Case sensitive. Return NULL if not found, return big if little == null
154 *****************************************************************************/
155 #if !defined( HAVE_STRCASESTR ) && !defined( HAVE_STRISTR )
156 char * vlc_strcasestr( const char *psz_big, const char *psz_little )
158 char *p_pos = (char *)psz_big;
160 if( !psz_big || !psz_little || !*psz_little ) return p_pos;
164 if( toupper( *p_pos ) == toupper( *psz_little ) )
166 char * psz_cur1 = p_pos + 1;
167 char * psz_cur2 = (char *)psz_little + 1;
168 while( *psz_cur1 && *psz_cur2 &&
169 toupper( *psz_cur1 ) == toupper( *psz_cur2 ) )
174 if( !*psz_cur2 ) return p_pos;
182 /*****************************************************************************
184 *****************************************************************************/
185 #if !defined(HAVE_VASPRINTF) || defined(__APPLE__) || defined(SYS_BEOS)
186 int vlc_vasprintf(char **strp, const char *fmt, va_list ap)
188 /* Guess we need no more than 100 bytes. */
190 char *p = malloc( i_size );
201 /* Try to print in the allocated space. */
202 n = vsnprintf( p, i_size, fmt, ap );
204 /* If that worked, return the string. */
205 if (n > -1 && n < i_size)
210 /* Else try again with more space. */
211 if (n > -1) /* glibc 2.1 */
213 i_size = n+1; /* precisely what is needed */
217 i_size *= 2; /* twice the old size */
219 if( (p = realloc( p, i_size ) ) == NULL)
228 /*****************************************************************************
230 *****************************************************************************/
231 #if !defined(HAVE_ASPRINTF) || defined(__APPLE__) || defined(SYS_BEOS)
232 int vlc_asprintf( char **strp, const char *fmt, ... )
237 va_start( args, fmt );
238 i_ret = vasprintf( strp, fmt, args );
245 /*****************************************************************************
246 * atof: convert a string to a double.
247 *****************************************************************************/
248 #if !defined( HAVE_ATOF )
249 double vlc_atof( const char *nptr )
253 int i_len = strlen( nptr ) + 1;
255 psz_tmp = malloc( i_len * sizeof(wchar_t) );
256 MultiByteToWideChar( CP_ACP, 0, nptr, -1, psz_tmp, i_len );
257 f_result = wcstod( psz_tmp, NULL );
264 /*****************************************************************************
265 * strtoll: convert a string to a 64 bits int.
266 *****************************************************************************/
267 #if !defined( HAVE_STRTOLL )
268 int64_t vlc_strtoll( const char *nptr, char **endptr, int base )
271 int sign = 1, newbase = base ? base : 10;
273 while( isspace(*nptr) ) nptr++;
281 /* Try to detect base */
294 if( base && newbase != base )
296 if( endptr ) *endptr = (char *)nptr;
303 while( *nptr >= '0' && *nptr <= '9' )
306 i_value += ( *nptr++ - '0' );
308 if( endptr ) *endptr = (char *)nptr;
312 while( (*nptr >= '0' && *nptr <= '9') ||
313 (*nptr >= 'a' && *nptr <= 'f') ||
314 (*nptr >= 'A' && *nptr <= 'F') )
317 if(*nptr >= '0' && *nptr <= '9') i_valc = *nptr - '0';
318 else if(*nptr >= 'a' && *nptr <= 'f') i_valc = *nptr - 'a' +10;
319 else if(*nptr >= 'A' && *nptr <= 'F') i_valc = *nptr - 'A' +10;
324 if( endptr ) *endptr = (char *)nptr;
328 i_value = strtol( nptr, endptr, newbase );
332 return i_value * sign;
336 /*****************************************************************************
337 * atoll: convert a string to a 64 bits int.
338 *****************************************************************************/
339 #if !defined( HAVE_ATOLL )
340 int64_t vlc_atoll( const char *nptr )
342 return strtoll( nptr, (char **)NULL, 10 );
346 /*****************************************************************************
347 * lldiv: returns quotient and remainder
348 *****************************************************************************/
349 #if defined(SYS_BEOS)
350 lldiv_t vlc_lldiv( long long numer, long long denom )
353 d.quot = numer / denom;
354 d.rem = numer % denom;
359 /*****************************************************************************
360 * vlc_*dir_wrapper: wrapper under Windows to return the list of drive letters
361 * when called with an empty argument or just '\'
362 *****************************************************************************/
363 #if defined(WIN32) && !defined(UNDER_CE)
364 typedef struct vlc_DIR
368 struct dirent dd_dir;
369 vlc_bool_t b_insert_back;
372 void *vlc_opendir_wrapper( const char *psz_path )
377 if ( psz_path == NULL || psz_path[0] == '\0'
378 || (psz_path[0] == '\\' && psz_path[1] == '\0') )
380 /* Special mode to list drive letters */
381 p_dir = malloc( sizeof(vlc_DIR) );
382 p_dir->p_real_dir = NULL;
383 p_dir->i_drives = GetLogicalDrives();
384 return (void *)p_dir;
387 p_real_dir = opendir( psz_path );
388 if ( p_real_dir == NULL )
391 p_dir = malloc( sizeof(vlc_DIR) );
392 p_dir->p_real_dir = p_real_dir;
393 p_dir->b_insert_back = ( psz_path[1] == ':' && psz_path[2] == '\\'
394 && psz_path[3] =='\0' );
395 return (void *)p_dir;
398 struct dirent *vlc_readdir_wrapper( void *_p_dir )
400 vlc_DIR *p_dir = (vlc_DIR *)_p_dir;
404 if ( p_dir->p_real_dir != NULL )
406 if ( p_dir->b_insert_back )
408 p_dir->dd_dir.d_ino = 0;
409 p_dir->dd_dir.d_reclen = 0;
410 p_dir->dd_dir.d_namlen = 2;
411 strcpy( p_dir->dd_dir.d_name, ".." );
412 p_dir->b_insert_back = VLC_FALSE;
413 return &p_dir->dd_dir;
416 return readdir( p_dir->p_real_dir );
419 /* Drive letters mode */
420 i_drives = p_dir->i_drives;
422 return NULL; /* end */
424 for ( i = 0; i < sizeof(DWORD)*8; i++, i_drives >>= 1 )
425 if ( i_drives & 1 ) break;
428 return NULL; /* this should not happen */
430 sprintf( p_dir->dd_dir.d_name, "%c:\\", 'A' + i );
431 p_dir->dd_dir.d_namlen = strlen(p_dir->dd_dir.d_name);
432 p_dir->i_drives &= ~(1UL << i);
433 return &p_dir->dd_dir;
436 int vlc_closedir_wrapper( void *_p_dir )
438 vlc_DIR *p_dir = (vlc_DIR *)_p_dir;
440 if ( p_dir->p_real_dir != NULL )
442 int i_ret = closedir( p_dir->p_real_dir );
451 void *vlc_opendir_wrapper( const char *psz_path )
453 return (void *)opendir( psz_path );
455 struct dirent *vlc_readdir_wrapper( void *_p_dir )
457 return readdir( (DIR *)_p_dir );
459 int vlc_closedir_wrapper( void *_p_dir )
461 return closedir( (DIR *)_p_dir );
465 /*****************************************************************************
466 * scandir: scan a directory alpha-sorted
467 *****************************************************************************/
468 #if !defined( HAVE_SCANDIR )
469 int vlc_alphasort( const struct dirent **a, const struct dirent **b )
471 return strcoll( (*a)->d_name, (*b)->d_name );
474 int vlc_scandir( const char *name, struct dirent ***namelist,
475 int (*filter) ( const struct dirent * ),
476 int (*compar) ( const struct dirent **,
477 const struct dirent ** ) )
480 struct dirent * p_content;
481 struct dirent ** pp_list;
484 if( !namelist || !( p_dir = vlc_opendir_wrapper( name ) ) ) return -1;
488 while( ( p_content = vlc_readdir_wrapper( p_dir ) ) )
490 if( filter && !filter( p_content ) )
494 pp_list = realloc( pp_list, ( ret + 1 ) * sizeof( struct dirent * ) );
495 size = sizeof( struct dirent ) + strlen( p_content->d_name ) + 1;
496 pp_list[ret] = malloc( size );
497 memcpy( pp_list[ret], p_content, size );
501 vlc_closedir_wrapper( p_dir );
505 qsort( pp_list, ret, sizeof( struct dirent * ),
506 (int (*)(const void *, const void *)) compar );
514 #if defined (WIN32) || !defined (HAVE_SHARED_LIBVLC)
515 /*****************************************************************************
516 * dgettext: gettext for plugins.
517 *****************************************************************************/
518 char *vlc_dgettext( const char *package, const char *msgid )
520 #if defined( ENABLE_NLS ) \
521 && ( defined(HAVE_GETTEXT) || defined(HAVE_INCLUDED_GETTEXT) )
522 return dgettext( package, msgid );
524 return (char *)msgid;
529 /*****************************************************************************
530 * count_utf8_string: returns the number of characters in the string.
531 *****************************************************************************/
532 static int count_utf8_string( const char *psz_string )
534 int i = 0, i_count = 0;
535 while( psz_string[ i ] != 0 )
537 if( ((unsigned char *)psz_string)[ i ] < 0x80UL ) i_count++;
543 /*****************************************************************************
544 * wraptext: inserts \n at convenient places to wrap the text.
545 * Returns the modified string in a new buffer.
546 *****************************************************************************/
547 char *vlc_wraptext( const char *psz_text, int i_line )
550 char *psz_line, *psz_new_text;
552 psz_line = psz_new_text = strdup( psz_text );
554 i_len = count_utf8_string( psz_text );
556 while( i_len > i_line )
558 /* Look if there is a newline somewhere. */
559 char *psz_parser = psz_line;
561 while( i_count <= i_line && *psz_parser != '\n' )
563 while( *((unsigned char *)psz_parser) >= 0x80UL ) psz_parser++;
567 if( *psz_parser == '\n' )
569 i_len -= (i_count + 1);
570 psz_line = psz_parser + 1;
574 /* Find the furthest space. */
575 while( psz_parser > psz_line && *psz_parser != ' ' )
577 while( *((unsigned char *)psz_parser) >= 0x80UL ) psz_parser--;
581 if( *psz_parser == ' ' )
584 i_len -= (i_count + 1);
585 psz_line = psz_parser + 1;
589 /* Wrapping has failed. Find the first space or newline */
590 while( i_count < i_len && *psz_parser != ' ' && *psz_parser != '\n' )
592 while( *((unsigned char *)psz_parser) >= 0x80UL ) psz_parser++;
596 if( i_count < i_len ) *psz_parser = '\n';
597 i_len -= (i_count + 1);
598 psz_line = psz_parser + 1;
604 /*****************************************************************************
606 *****************************************************************************/
607 vlc_iconv_t vlc_iconv_open( const char *tocode, const char *fromcode )
609 #if defined(HAVE_ICONV)
610 return iconv_open( tocode, fromcode );
616 size_t vlc_iconv( vlc_iconv_t cd, char **inbuf, size_t *inbytesleft,
617 char **outbuf, size_t *outbytesleft )
619 #if defined(HAVE_ICONV)
620 return iconv( cd, inbuf, inbytesleft, outbuf, outbytesleft );
624 if (inbytesleft == NULL || outbytesleft == NULL)
629 i_bytes = __MIN(*inbytesleft, *outbytesleft);
630 if( !inbuf || !outbuf || !i_bytes ) return (size_t)(-1);
631 memcpy( *outbuf, *inbuf, i_bytes );
634 inbytesleft -= i_bytes;
635 outbytesleft -= i_bytes;
640 int vlc_iconv_close( vlc_iconv_t cd )
642 #if defined(HAVE_ICONV)
643 return iconv_close( cd );
649 /*****************************************************************************
651 * (adapted from libavcodec, author Michael Niedermayer <michaelni@gmx.at>)
652 *****************************************************************************/
653 vlc_bool_t vlc_ureduce( unsigned *pi_dst_nom, unsigned *pi_dst_den,
654 uint64_t i_nom, uint64_t i_den, uint64_t i_max )
656 vlc_bool_t b_exact = 1;
666 i_gcd = GCD( i_nom, i_den );
670 if( i_max == 0 ) i_max = I64C(0xFFFFFFFF);
672 if( i_nom > i_max || i_den > i_max )
674 uint64_t i_a0_num = 0, i_a0_den = 1, i_a1_num = 1, i_a1_den = 0;
679 uint64_t i_x = i_nom / i_den;
680 uint64_t i_a2n = i_x * i_a1_num + i_a0_num;
681 uint64_t i_a2d = i_x * i_a1_den + i_a0_den;
683 if( i_a2n > i_max || i_a2d > i_max ) break;
687 i_a0_num = i_a1_num; i_a0_den = i_a1_den;
688 i_a1_num = i_a2n; i_a1_den = i_a2d;
689 if( i_nom == 0 ) break;
690 i_x = i_nom; i_nom = i_den; i_den = i_x;
702 /*************************************************************************
703 * vlc_parse_cmdline: Command line parsing into elements.
705 * The command line is composed of space/tab separated arguments.
706 * Quotes can be used as argument delimiters and a backslash can be used to
708 *************************************************************************/
709 static void find_end_quote( char **s, char **ppsz_parser, int i_quote )
718 (*ppsz_parser)++; (*s)++;
721 else if( **s == '"' || **s == '\'' )
723 /* Preceeded by a number of '\' which we erase. */
724 *ppsz_parser -= i_bcount / 2;
727 /* '\\' followed by a '"' or '\'' */
730 (*ppsz_parser)++; (*s)++;
742 /* Different quoting */
745 (*ppsz_parser)++; (*s)++;
746 find_end_quote( s, ppsz_parser, i_quote );
748 (*ppsz_parser)++; (*s)++;
755 /* A regular character */
757 (*ppsz_parser)++; (*s)++;
763 char **vlc_parse_cmdline( const char *psz_cmdline, int *i_args )
767 char *s, *psz_parser, *psz_arg, *psz_orig;
770 if( !psz_cmdline ) return 0;
771 psz_orig = strdup( psz_cmdline );
772 psz_arg = psz_parser = s = psz_orig;
776 if( *s == '\t' || *s == ' ' )
778 /* We have a complete argument */
780 TAB_APPEND( argc, argv, strdup(psz_arg) );
782 /* Skip trailing spaces/tabs */
783 do{ s++; } while( *s == '\t' || *s == ' ' );
786 psz_arg = psz_parser = s;
789 else if( *s == '\\' )
791 *psz_parser++ = *s++;
794 else if( *s == '"' || *s == '\'' )
796 if( ( i_bcount & 1 ) == 0 )
798 /* Preceeded by an even number of '\', this is half that
799 * number of '\', plus a quote which we erase. */
801 psz_parser -= i_bcount / 2;
803 find_end_quote( &s, &psz_parser, i_quote );
808 /* Preceeded by an odd number of '\', this is half that
809 * number of '\' followed by a '"' */
810 psz_parser = psz_parser - i_bcount/2 - 1;
818 /* A regular character */
819 *psz_parser++ = *s++;
824 /* Take care of the last arg */
828 TAB_APPEND( argc, argv, strdup(psz_arg) );
831 if( i_args ) *i_args = argc;
836 /*************************************************************************
837 * vlc_execve: Execute an external program with a given environment,
838 * wait until it finishes and return its standard output
839 *************************************************************************/
840 int __vlc_execve( vlc_object_t *p_object, int i_argc, char **ppsz_argv,
841 char **ppsz_env, char *psz_cwd, char *p_in, int i_in,
842 char **pp_data, int *pi_data )
852 if ( (i_child_pid = fork()) == -1 )
854 msg_Err( p_object, "unable to fork (%s)", strerror(errno) );
858 if ( i_child_pid == 0 )
870 if ( psz_cwd != NULL )
872 execve( ppsz_argv[0], ppsz_argv, ppsz_env );
879 close( pi_stdin[0] );
882 *pp_data = malloc( 1025 ); /* +1 for \0 */
884 while ( !p_object->b_die )
887 fd_set readfds, writefds;
891 FD_ZERO( &writefds );
892 FD_SET( pi_stdout[0], &readfds );
894 FD_SET( pi_stdin[0], &writefds );
899 i_ret = select( pi_stdin[0] > pi_stdout[0] ? pi_stdin[0] + 1 :
900 pi_stdout[0] + 1, &readfds, &writefds, NULL, &tv );
903 if ( FD_ISSET( pi_stdout[0], &readfds ) )
905 ssize_t i_read = read( pi_stdout[0], &(*pp_data)[*pi_data],
910 *pp_data = realloc( *pp_data, *pi_data + 1025 );
913 if ( FD_ISSET( pi_stdin[0], &writefds ) )
915 ssize_t i_write = write( pi_stdin[0], p_in, __MIN(i_in, 1024) );
923 close( pi_stdin[0] );
927 if ( waitpid( i_child_pid, &i_status, WNOHANG ) == i_child_pid )
929 if ( WIFEXITED( i_status ) )
931 if ( WEXITSTATUS( i_status ) )
934 "child %s returned with error code %d",
935 ppsz_argv[0], WEXITSTATUS( i_status ) );
940 if ( WIFSIGNALED( i_status ) )
943 "child %s quit on signal %d", ppsz_argv[0],
944 WTERMSIG( i_status ) );
948 close( pi_stdin[0] );
949 close( pi_stdout[0] );
953 if ( i_ret < 0 && errno != EINTR )
955 msg_Warn( p_object, "select failed (%s)", strerror(errno) );
959 #elif defined( WIN32 ) && !defined( UNDER_CE )
960 SECURITY_ATTRIBUTES saAttr;
961 PROCESS_INFORMATION piProcInfo;
962 STARTUPINFO siStartInfo;
963 BOOL bFuncRetn = FALSE;
964 HANDLE hChildStdinRd, hChildStdinWr, hChildStdoutRd, hChildStdoutWr;
966 char *psz_cmd, *p_env, *p;
970 /* Set the bInheritHandle flag so pipe handles are inherited. */
971 saAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
972 saAttr.bInheritHandle = TRUE;
973 saAttr.lpSecurityDescriptor = NULL;
975 /* Create a pipe for the child process's STDOUT. */
976 if ( !CreatePipe( &hChildStdoutRd, &hChildStdoutWr, &saAttr, 0 ) )
978 msg_Err( p_object, "stdout pipe creation failed" );
982 /* Ensure the read handle to the pipe for STDOUT is not inherited. */
983 SetHandleInformation( hChildStdoutRd, HANDLE_FLAG_INHERIT, 0 );
985 /* Create a pipe for the child process's STDIN. */
986 if ( !CreatePipe( &hChildStdinRd, &hChildStdinWr, &saAttr, 0 ) )
988 msg_Err( p_object, "stdin pipe creation failed" );
992 /* Ensure the write handle to the pipe for STDIN is not inherited. */
993 SetHandleInformation( hChildStdinWr, HANDLE_FLAG_INHERIT, 0 );
995 /* Set up members of the PROCESS_INFORMATION structure. */
996 ZeroMemory( &piProcInfo, sizeof(PROCESS_INFORMATION) );
998 /* Set up members of the STARTUPINFO structure. */
999 ZeroMemory( &siStartInfo, sizeof(STARTUPINFO) );
1000 siStartInfo.cb = sizeof(STARTUPINFO);
1001 siStartInfo.hStdError = hChildStdoutWr;
1002 siStartInfo.hStdOutput = hChildStdoutWr;
1003 siStartInfo.hStdInput = hChildStdinRd;
1004 siStartInfo.wShowWindow = SW_HIDE;
1005 siStartInfo.dwFlags |= STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
1007 /* Set up the command line. */
1008 psz_cmd = malloc(32768);
1011 ppsz_parser = &ppsz_argv[0];
1012 while ( ppsz_parser[0] != NULL && i_size > 0 )
1014 /* Protect the last argument with quotes ; the other arguments
1015 * are supposed to be already protected because they have been
1016 * passed as a command-line option. */
1017 if ( ppsz_parser[1] == NULL )
1019 strncat( psz_cmd, "\"", i_size );
1022 strncat( psz_cmd, *ppsz_parser, i_size );
1023 i_size -= strlen( *ppsz_parser );
1024 if ( ppsz_parser[1] == NULL )
1026 strncat( psz_cmd, "\"", i_size );
1029 strncat( psz_cmd, " ", i_size );
1034 /* Set up the environment. */
1035 p = p_env = malloc(32768);
1037 ppsz_parser = &ppsz_env[0];
1038 while ( *ppsz_parser != NULL && i_size > 0 )
1040 memcpy( p, *ppsz_parser,
1041 __MIN((int)(strlen(*ppsz_parser) + 1), i_size) );
1042 p += strlen(*ppsz_parser) + 1;
1043 i_size -= strlen(*ppsz_parser) + 1;
1048 /* Create the child process. */
1049 bFuncRetn = CreateProcess( NULL,
1050 psz_cmd, // command line
1051 NULL, // process security attributes
1052 NULL, // primary thread security attributes
1053 TRUE, // handles are inherited
1054 0, // creation flags
1057 &siStartInfo, // STARTUPINFO pointer
1058 &piProcInfo ); // receives PROCESS_INFORMATION
1063 if ( bFuncRetn == 0 )
1065 msg_Err( p_object, "child creation failed" );
1069 /* Read from a file and write its contents to a pipe. */
1070 while ( i_in > 0 && !p_object->b_die )
1073 if ( !WriteFile( hChildStdinWr, p_in, i_in, &i_written, NULL ) )
1079 /* Close the pipe handle so the child process stops reading. */
1080 CloseHandle(hChildStdinWr);
1082 /* Close the write end of the pipe before reading from the
1083 * read end of the pipe. */
1084 CloseHandle(hChildStdoutWr);
1086 /* Read output from the child process. */
1088 *pp_data = malloc( 1025 ); /* +1 for \0 */
1090 while ( !p_object->b_die )
1093 if ( !ReadFile( hChildStdoutRd, &(*pp_data)[*pi_data], 1024, &i_read,
1098 *pp_data = realloc( *pp_data, *pi_data + 1025 );
1101 while ( !p_object->b_die
1102 && !GetExitCodeProcess( piProcInfo.hProcess, &i_status )
1103 && i_status != STILL_ACTIVE )
1106 CloseHandle(piProcInfo.hProcess);
1107 CloseHandle(piProcInfo.hThread);
1111 "child %s returned with error code %ld",
1112 ppsz_argv[0], i_status );
1115 msg_Err( p_object, "vlc_execve called but no implementation is available" );
1120 (*pp_data)[*pi_data] = '\0';