diff options
Diffstat (limited to 'emulators/hercules/patches/patch-af')
| -rw-r--r-- | emulators/hercules/patches/patch-af | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/emulators/hercules/patches/patch-af b/emulators/hercules/patches/patch-af new file mode 100644 index 00000000000..19d73caae3d --- /dev/null +++ b/emulators/hercules/patches/patch-af @@ -0,0 +1,30 @@ +$NetBSD: patch-af,v 1.1 2001/02/22 11:34:59 agc Exp $ + +> From Wofgang Solfrank (ws@tools.de) +> What I discovered was a problem in ckddasd.c, where there are two lseeks +> with an offset of -(CKDDASD_RECHDR_SIZE). Now CKDDASD_RECHDR_SIZE is +> defined (in hercules.h) as sizeof(CKDDASD_RECHDR), which happens to be +> an unsigned int. Since the offset in the lseek (and in the ckd_lseek +> that is used as an interface routine to it) is of type off_t, i.e. 64-bit, +> the unsigned is zero-extended to 64 bits, and thus the sign is lost. + +--- ckddasd.c 2001/02/22 10:54:55 1.1 ++++ ckddasd.c 2001/02/22 10:55:26 +@@ -1663,7 +1663,7 @@ + } + + /* Backspace over end of track marker */ +- rc = ckd_lseek (dev, dev->fd, -(CKDDASD_RECHDR_SIZE), SEEK_CUR); ++ rc = ckd_lseek (dev, dev->fd, (int) -(CKDDASD_RECHDR_SIZE), SEEK_CUR); + if (rc == -1) + { + /* Handle seek error condition */ +@@ -1813,7 +1813,7 @@ + } + + /* Backspace over end of track marker */ +- rc = ckd_lseek (dev, dev->fd, -(CKDDASD_RECHDR_SIZE), SEEK_CUR); ++ rc = ckd_lseek (dev, dev->fd, (int) -(CKDDASD_RECHDR_SIZE), SEEK_CUR); + if (rc == -1) + { + /* Handle seek error condition */ |