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[efi] Avoid modifying PE/COFF debug filename

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The function efi_pecoff_debug_name() (called by efi_handle_name()) is
used to extract a filename from the debug data directory entry located
within a PE/COFF image.  The name is copied into a temporary static
buffer to allow for modifications, but the code currently erroneously
modifies the original name within the loaded PE/COFF image.

Fix by performing the modification on the copy in the temporary
buffer, as originally intended.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2023-11-29 12:49:06 +00:00
parent a147245f1a
commit 98dd25a3bb
1 changed files with 2 additions and 2 deletions
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src/interface/efi/efi_debug.c
+2 -2
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@@ -665,10 +665,10 @@ efi_pecoff_debug_name ( EFI_LOADED_IMAGE_PROTOCOL *loaded ) {
snprintf ( buf, sizeof ( buf ), "%s", name ); snprintf ( buf, sizeof ( buf ), "%s", name );
/* Strip file suffix, if present */ /* Strip file suffix, if present */
if ( ( tmp = strrchr ( name, '.' ) ) != NULL ) if ( ( tmp = strrchr ( buf, '.' ) ) != NULL )
*tmp = '\0'; *tmp = '\0';
return name; return buf;
} }
/** /**