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Fixed crash on zero-byte read/write (thanks, Ensiform!).

This commit is contained in:
Ryan C. Gordon 2007-07-11 22:11:29 +00:00
parent fc6d85b2f4
commit 87f7eb152a
2 changed files with 5 additions and 0 deletions
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1
CHANGELOG
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@ -4,6 +4,7 @@
-- stuff in the stable-1.0 branch, backported from 2.0.0 dev branch, etc ---
07112007 - Fixed crash on zero-byte read/write (thanks, Ensiform!).
05052007 - Fixed zip archiver: could do bogus seek if a small, non-zip file
got put through isArchive().
04022007 - Fixed Doxygen comment.

4
physfs.c
View File

@ -1797,6 +1797,8 @@ PHYSFS_sint64 PHYSFS_read(PHYSFS_file *handle, void *buffer,
FileHandle *h = (FileHandle *) handle->opaque;
BAIL_IF_MACRO(!h->forReading, ERR_FILE_ALREADY_OPEN_W, -1);
BAIL_IF_MACRO(objSize == 0, NULL, 0);
BAIL_IF_MACRO(objCount == 0, NULL, 0);
if (h->buffer != NULL)
return(doBufferedRead(handle, buffer, objSize, objCount));
@ -1830,6 +1832,8 @@ PHYSFS_sint64 PHYSFS_write(PHYSFS_file *handle, const void *buffer,
FileHandle *h = (FileHandle *) handle->opaque;
BAIL_IF_MACRO(h->forReading, ERR_FILE_ALREADY_OPEN_R, -1);
BAIL_IF_MACRO(objSize == 0, NULL, 0);
BAIL_IF_MACRO(objCount == 0, NULL, 0);
if (h->buffer != NULL)
return(doBufferedWrite(handle, buffer, objSize, objCount));