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winebuild: Avoid using mmap(). 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
stable
Alexandre Julliard 2019-04-03 15:48:57 +02:00
parent 44dc9d7383
commit 015f31fd5d
1 changed files with 3 additions and 11 deletions
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14
tools/winebuild/utils.c
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@ -33,9 +33,6 @@
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
#endif
#include "build.h"
@ -540,18 +537,13 @@ void init_input_buffer( const char *file )
{
int fd;
struct stat st;
unsigned char *buffer;
if ((fd = open( file, O_RDONLY | O_BINARY )) == -1) fatal_perror( "Cannot open %s", file );
if ((fstat( fd, &st ) == -1)) fatal_perror( "Cannot stat %s", file );
if (!st.st_size) fatal_error( "%s is an empty file\n", file );
#ifdef HAVE_MMAP
if ((input_buffer = mmap( NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0 )) == (void*)-1)
#endif
{
unsigned char *buffer = xmalloc( st.st_size );
if (read( fd, buffer, st.st_size ) != st.st_size) fatal_error( "Cannot read %s\n", file );
input_buffer = buffer;
}
input_buffer = buffer = xmalloc( st.st_size );
if (read( fd, buffer, st.st_size ) != st.st_size) fatal_error( "Cannot read %s\n", file );
close( fd );
input_buffer_filename = xstrdup( file );
input_buffer_size = st.st_size;