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winedump: Avoid using mmap(). 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2019-04-03 15:49:04 +02:00
parent 015f31fd5d
commit 82c44208b4
1 changed files with 3 additions and 16 deletions
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19
tools/winedump/dump.c
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@ -34,9 +34,6 @@
#ifdef HAVE_SYS_STAT_H #ifdef HAVE_SYS_STAT_H
# include <sys/stat.h> # include <sys/stat.h>
#endif #endif
#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
#endif
#include <fcntl.h> #include <fcntl.h>
#include "windef.h" #include "windef.h"
@ -260,13 +257,8 @@ BOOL dump_analysis(const char *name, file_dumper fn, enum FileSig wanted_sig)
if (fstat(fd, &s) < 0) fatal("Can't get size"); if (fstat(fd, &s) < 0) fatal("Can't get size");
dump_total_len = s.st_size; dump_total_len = s.st_size;
#ifdef HAVE_MMAP if (!(dump_base = malloc( dump_total_len ))) fatal( "Out of memory" );
if ((dump_base = mmap(NULL, dump_total_len, PROT_READ, MAP_PRIVATE, fd, 0)) == (void *)-1) if ((unsigned long)read( fd, dump_base, dump_total_len ) != dump_total_len) fatal( "Cannot read file" );
#endif
{
if (!(dump_base = malloc( dump_total_len ))) fatal( "Out of memory" );
if ((unsigned long)read( fd, dump_base, dump_total_len ) != dump_total_len) fatal( "Cannot read file" );
}
printf("Contents of %s: %ld bytes\n\n", name, dump_total_len); printf("Contents of %s: %ld bytes\n\n", name, dump_total_len);
@ -286,12 +278,7 @@ BOOL dump_analysis(const char *name, file_dumper fn, enum FileSig wanted_sig)
} }
if (ret) printf("Done dumping %s\n", name); if (ret) printf("Done dumping %s\n", name);
#ifdef HAVE_MMAP free( dump_base );
if (munmap(dump_base, dump_total_len) == -1)
#endif
{
free( dump_base );
}
close(fd); close(fd);
return ret; return ret;