diff options
| author | Guy Harris <guy@alum.mit.edu> | 2002-11-01 09:41:36 +0000 |
|---|---|---|
| committer | Guy Harris <guy@alum.mit.edu> | 2002-11-01 09:41:36 +0000 |
| commit | 749d00f331056b34906a273da60f5859a933b3a9 (patch) | |
| tree | 82652bb545d3933510f83fe85412e8912014c968 | |
| parent | d24c2bc5b9a6c3fb2dc7aac3d9e864ab607fc384 (diff) | |
Put in a portability note telling people to use "strchr()" and
"strrchr()", not "index()" and "rindex()"; MSVC++ doesn't declare
"index()" or "rindex()" if you include <string.h>, and they're
non-standard routines (the ANSI C names for those functions are
"strchr()" and "strrchr()").
Add a bit more to the other portability note on the topic of
non-standard vs. ANSI standard functions.
svn path=/trunk/; revision=6539
| -rw-r--r-- | doc/README.developer | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/doc/README.developer b/doc/README.developer index 3104ff294b..ba5921a656 100644 --- a/doc/README.developer +++ b/doc/README.developer @@ -1,4 +1,4 @@ -$Id: README.developer,v 1.62 2002/10/17 20:05:04 guy Exp $ +$Id: README.developer,v 1.63 2002/11/01 09:41:36 guy Exp $ This file is a HOWTO for Ethereal developers. It describes how to start coding a Ethereal protocol dissector and the use some of the important functions and @@ -91,12 +91,17 @@ routines and "memcmp()" (note that "memcmp()" returns 0, 1, or -1, doing an ordered comparison, rather than just returning 0 for "equal" - and 1 for "not equal"). + and 1 for "not equal", as "bcmp()" does). Not all platforms necessarily have "bzero()"/"bcopy()"/"bcmp()", and those that do might not declare them in the header file on which they're declared on your platform. +Don't use "index()" or "rindex()"; instead, use the ANSI C equivalents, +"strchr()" and "strrchr()". Not all platforms necessarily have +"index()" or "rindex()", and those that do might not declare them in the +header file on which they're declared on your platform. + Don't fetch data from packets by getting a pointer to data in the packet with "tvb_get_ptr()", casting that pointer to a pointer to a structure, and dereferencing that pointer. That point won't necessarily be aligned @@ -144,7 +149,7 @@ code inside is needed only if you are using the "snprintf()" function. -The "$Id: README.developer,v 1.62 2002/10/17 20:05:04 guy Exp $" +The "$Id: README.developer,v 1.63 2002/11/01 09:41:36 guy Exp $" in the comment will be updated by CVS when the file is checked in; it will allow the RCS "ident" command to report which version of the file is currently checked out. @@ -154,7 +159,7 @@ version of the file is currently checked out. * Routines for PROTONAME dissection * Copyright 2000, YOUR_NAME <YOUR_EMAIL_ADDRESS> * - * $Id: README.developer,v 1.62 2002/10/17 20:05:04 guy Exp $ + * $Id: README.developer,v 1.63 2002/11/01 09:41:36 guy Exp $ * * Ethereal - Network traffic analyzer * By Gerald Combs <gerald@ethereal.com> |