mirror of
https://git.openldap.org/openldap/openldap.git
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110 lines
4.5 KiB
Plaintext
110 lines
4.5 KiB
Plaintext
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This document is being replaced with:
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http://www.openldap.org/devel/programming.html
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and
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http://www.openldap.org/devel/contributing.html
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However, some of the info here is still useful.
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Coding guide lines and and hints for OpenLDAP developers.
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=========================================================
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Please add to this file when new points come up.
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C source
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--------
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OpenLDAP requires many Standard C features to *build*. This
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includes functional prototypes and offsetof macro. It is
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possible to *build* OpenLDAP with a number of C translators
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which are not fully compliant with Standard C.
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OpenLDAP supports compiling and linking *with* applications
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with most C compilers and libraries. The installed headers
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are designed to provide K&R C compatiable function declarations
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on non-standard compilers. In cases where the compiler does
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not define __STDC__ but requires prototypes (ie: MSVC), the
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application should define LDAP_NEEDS_PROTOTYPES. In cases
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where the compiler does define __STDC__ but does not support
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prototypes, the application should define LDAP_NO_PROTOTYPES.
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.c files in the OpenLDAP source tree MUST #include "portable.h" before
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any other include file, even system includes. portable.h may control
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aspects of system includes, such as whether or not thread-safe library
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functions are used. (Separate applications can't use portable.h, since
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it is not installed. They can use ldap_features.h, though.)
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.h files that are NOT INSTALLED may depend on features from portable.h.
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.h files that *are* installed (from include/) should not depend on it.
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Avoid unnecessary changes, like reindenting code, even if that leaves
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the code a little ugly. Often switching your editors tab stops to
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4 or 8 may make code easier to read. Unnecessary changes make it
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harder to maintain and merge different CVS branches of the source.
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Please follow the style of surrounding code.
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Use feature-specific #if tests (like #ifdef HAVE_LWP) which configure
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can figure out, not system-specific test (like #ifdef __SunOS_5_6).
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When available, use include files from ldap/include/ac/ to get system
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features or functions. The <ac/xxx.h> files try to fix crippled system
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includes, and to hide #ifdef messes that portable programs need in order
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to find a feature. Note that a file <ac/xxx.h> is not necessarily
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designed to be equivalent to standard C's <xxx.h> file.
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Nonstatic function and variable definitions in .c files should be
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preceded by their declarations in .h files. Avoid implicit function
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declarations. External declarations with should be avoided. In
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.c files, include the appropriate .h file to obtain the declaration.
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If the declaration is not available in any system header, add it
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to the most appropriate ac/xxx.h header. Do NOT add extern
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declarations to .c files.
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When a function returns non-void, it should return a meaningful value.
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Avoid implicit int.
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It is recommended that ldap_cdef.h macros LDAP_F and LDAP_P be used
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even for non-installed headers. See lber.h and ldap.h for examples.
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CVS updating
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------------
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<URL:http://www.openldap.org/software/repo.html> describes how to check out
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-stable. To get the -devel (HEAD) branch, omit `-r OPENLDAP_STABLE'.
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You can use 'cvs status -v README' to get a list available CVS tags.
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Core members should subscribe to the -core mailing list. This
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list is for private discussions between core team members. The
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openldap-devel@openldap.org mailing list is the primary developer
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forum for both technical disscusions and coordinating efforts.
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Please test patches before committing. This should include compiling
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and linking the system AND running the test suite.
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In general, a patch/bugfix should be applied to -devel and tested.
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When the patch is considered stable, then it can be merged into -stable.
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Same goes for other release engineering branches (like
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OPENLDAP_REL_ENG_1_1). (-stable is rel eng 1.0).
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Specific procjects may get their own branches, to be merged later.
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Log messages: Just describe the change and reason. CVS adds your name,
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date, etc.
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Various tips and hints
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----------------------
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How to correct a CVS log message:
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Commit the unchanged files again with the `-f' flag and with a log
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message stating how the previous log was in error:
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cvs commit -f cldap.c os-ip.c
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Preferably, prepend a line something like this to the message:
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"Forced commit to correct previous log, files were not changed."
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Modify ldapconfig.h instead of ldapconfig.h.edit. Then `cvs commit'
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from the include directory won't accidentally commit your private
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ldapconfig.h.edit.
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