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Added fallback read() for missing/failing mmap().

This commit is contained in:
Alexandre Julliard 2002-06-01 02:47:58 +00:00
parent 9a62491660
commit ffb4956f4a
1 changed files with 13 additions and 3 deletions
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16
tools/winedump/pe.c
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@ -822,8 +822,13 @@ int pe_analysis(const char* name, void (*fn)(void), enum FileSig wanted_sig)
if (fstat(fd, &s) < 0) fatal("Can't get size"); if (fstat(fd, &s) < 0) fatal("Can't get size");
total_len = s.st_size; total_len = s.st_size;
base = mmap(NULL, total_len, PROT_READ, MAP_PRIVATE, fd, 0); #ifdef HAVE_MMAP
if (base == (void*)-1) fatal("Can't map file"); if ((base = mmap(NULL, total_len, PROT_READ, MAP_PRIVATE, fd, 0)) == (void *)-1)
#endif
{
if (!(base = malloc( total_len ))) fatal( "Out of memory" );
if (read( fd, base, total_len ) != total_len) fatal( "Cannot read file" );
}
effective_sig = check_headers(); effective_sig = check_headers();
@ -856,7 +861,12 @@ int pe_analysis(const char* name, void (*fn)(void), enum FileSig wanted_sig)
} }
if (ret) printf("Done dumping %s\n", name); if (ret) printf("Done dumping %s\n", name);
munmap(base, total_len); #ifdef HAVE_MMAP
if (munmap(base, total_len) == -1)
#endif
{
free( base );
}
close(fd); close(fd);
return ret; return ret;