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Add code to the BFD library to handle opening files with pathnames longer than MAX_PATH on Win32 systems.

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PR 25713
	* bfdio.c (_bfd_real_fopen): Add code to handle long filenames on
	Win32 systems.
This commit is contained in:
Nick Clifton 2020-03-24 15:24:02 +00:00
parent ec2e748ad3
commit 0b8448af68
2 changed files with 31 additions and 11 deletions
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6
bfd/ChangeLog
View File

@ -1,3 +1,9 @@
2020-03-24 Nick Clifton <nickc@redhat.com>
PR 25713
* bfdio.c (_bfd_real_fopen): Add code to handle long filenames on
Win32 systems.
2020-03-24 Nick Clifton <nickc@redhat.com>
PR 25681

36
bfd/bfdio.c
View File

@ -26,6 +26,9 @@
#include "bfd.h"
#include "libbfd.h"
#include "aout/ar.h"
#if defined (_WIN32)
#include <windows.h>
#endif
#ifndef S_IXUSR
#define S_IXUSR 0100 /* Execute by owner. */
@ -93,12 +96,7 @@ _bfd_real_fopen (const char *filename, const char *modes)
In fopen-vms.h, they are separated from the mode with a comma.
Split here. */
vms_attr = strchr (modes, ',');
if (vms_attr == NULL)
{
/* No attributes. */
return close_on_exec (fopen (filename, modes));
}
else
if (vms_attr != NULL)
{
/* Attributes found. Split. */
size_t modes_len = strlen (modes) + 1;
@ -116,13 +114,29 @@ _bfd_real_fopen (const char *filename, const char *modes)
}
return close_on_exec (fopen (filename, at[0], at[1], at[2]));
}
#else /* !VMS */
#if defined (HAVE_FOPEN64)
#elif defined (_WIN32)
size_t filelen = strlen (filename) + 1;
if (filelen > MAX_PATH - 1)
{
FILE *file;
char* fullpath = (char *) malloc (filelen + 8);
/* Add a Microsoft recommended prefix that
will allow the extra-long path to work. */
strcpy (fullpath, "\\\\?\\");
strcat (fullpath, filename);
file = close_on_exec (fopen (fullpath, modes));
free (fullpath);
return file;
}
#elif defined (HAVE_FOPEN64)
return close_on_exec (fopen64 (filename, modes));
#else
return close_on_exec (fopen (filename, modes));
#endif
#endif /* !VMS */
return close_on_exec (fopen (filename, modes));
}
/*