lib: Add event API The events are hierarchical and the child events inherit the parents' fields. The events will be attached to "objects", which gives them some context. For example each mail user, mailbox and mail will have its own event. The events can also have a log prefix, so logging events to e.g. mail will always log a consistent prefix that identifies which mail is being logged about. The events will also be used for statistics. Typically this is done by logging a debug event, which contains fields that are interesting for statistics. The interesting events will have a name, which can be used to identify them when configuring which statistics are wanted to be tracked. It's possible to also track events that have no name, but that requires using the source code's filename:line as the event name. That of course may change between releases, so it's not very reliable.

lib: move fd_close_maybe_stdio() to fd-util.[ch]

lib: always include fd-close-on-exec.h & fd-set-nonblock.h via fd-util.h

lib: remove close_keep_errno()

lib: introduce i_rand_limit() and i_rand_minmax()

lib: Replace rand.c with i_rand function Replacement for rand

lib: import byte swapping & endian converting functions

lib: include inttypes.h to get PRIu64 & friends Including it in lib.h allows all of the Dovecot code (as well as any external plugins) to just use these macros without worrying about what system headers to include.

lib: Add MALLOC_MULTIPLY() and MALLOC_ADD() These can be used for calculating memory allocation sizes. If there's an overflow, the macro panics.

lib: Add fd_close_maybe_stdio() The idea is that this should be used whenever closing fds that may be 0 or 1. If they are closed normally, the following code may end up using 0/1 fd for other purposes, which could cause problems.

lib: Make sure stdin/stdout/stderr have fd at startup and keep /dev/null always open This guarantees we will always have a fd that can be used as /dev/null. It works even inside chroots.

lib: Add function to see if lib is initialized This is needed by test-lib to prevent double init/deinit.

doveadm: Fixed reseting getopt() with glibc when processing multiple commands in a single process. This means commands run with doveadm batch or multiple commands in a single doveadm-server connection. glibc's getopt() man page says that optind=1 should reset it for scanning a new argument vector, but this doesn't actually seem to work. Setting optind=0 does work though, so use it everywhere.

lib: Include stdlib.h in lib.h. It's already included in so many files that we might as well include it in lib.h for everything. This is especially needed to be able to use sort.h, which currently is included in lib.h anyway.

lib: Added i_unlink() and i_unlink_if_exists() These log the error message on a failed unlink(). They also include the source code file and line number to make it easier to find which unlink() actually failed if the path itself doesn't already clearly identify it. This can be especially useful if the path is (null), "" or contains some corrupted garbage.

lib: Added lib_atexit_priority()

lib: add rand helper library Initially, just wrap srand() so that we can find out what the last-used seed was. In situations where srand() is called only once (via this helper) this lets us reproduce exactly the same stream of random data again in order to reproduce rare crashes. Signed-off-by: Phil Carmody <phil@dovecot.fi>

lib: bit twiddles bits_requiredXX() gives the number of bits required to store an unsigned integer. Here, XX is 8, 16, 32, 64, reperesenting the size of the operand. It belongs in the same file as nearest_power(), which makes most sense in a separate bit twiddles file. Universal enough to stay in lib.h by inclusion. Signed-off-by: Phil Carmody <phil@dovecot.fi>

Call lib_atexit() callbacks before destroying the lib-master ioloop.

liblib: Added lib_atexit() to register process deinit callbacks.

Array API changed: ARRAY_DEFINE(name, type) -> ARRAY(type) name Easy way to update your existing code: perl -i -pe 's:ARRAY_DEFINE\(([^,]+), *([^)]+)\);:ARRAY($2) $1;:' **/*.[ch]

Hash table API is now (mostly) type safe.

Changed i_close_fd() API to set the fd to -1 after closing.

Added str_to_*() for converting strings to numbers, plus a few helper functions. The str_to_*() return failure also if integer is too large or too small to fit into destination. --HG-- branch : HEAD

Added more consts, ATTR_CONSTs and ATTR_PUREs. --HG-- branch : HEAD

Changed .h ifdef/defines to use <NAME>_H format. --HG-- branch : HEAD

Include stddef.h always to make NULL expand correctly in Solaris. --HG-- branch : HEAD

Array API redesigned to work using unions. It now provides type safety without having to enable DEBUG, as long as the compiler supports typeof(). Its API changed a bit. It now allows directly accessing the array contents, although that's not necessarily recommended. Changed existing array usage to be type safe in a bit more places. Removed array_t completely. Also did s/modifyable/modifiable/. --HG-- branch : HEAD

Removed null4 and replaced the few uses of it with buffer_append_zero(). --HG-- branch : HEAD

Include just "config.h", not "../../config.h". The absolute path breaks compiling elsewhere than source tree. It was earlier added to avoid some global config.h files, but those shouldn't exist.. --HG-- branch : HEAD

Moved array declaration to array-decl.h and include it in lib.h. So array.h needs to be now included to use any array_*() functions. --HG-- branch : HEAD

Added dynamic array implementation. When compiling with gcc and DEBUG enabled, gcc checks type safety at compile time. --HG-- branch : HEAD

extern was missing from null4 declaration. --HG-- branch : HEAD

Added null4[] variable. --HG-- branch : HEAD

Define PREAD_WRAPPERS if we're using GLIBC, not if we're using Linux. Removed a few ANSI-C header checks. Added strings.h check and include it automatically if it's found, for strcasecmp(). --HG-- branch : HEAD

Naming style changes, finally got tired of most of the typedefs. Also the previous enum -> macro change reverted so that we don't use the highest bit anymore, that's incompatible with old indexes so they will be rebuilt. --HG-- branch : HEAD

Replaced TempString with a String which can use any memory pool and uses Buffer internally. --HG-- branch : HEAD

Added buffer API. Point is to hide all buffer writing behind this API which verifies that nothing overflows. Much better than doing the same checks all around the code, even if it is slightly slower. Buffer reading is still mostly done directly, that isn't such a big security risk and I can't think of a reasonable API for it anyway. --HG-- branch : HEAD

Renamed IBuffer and OBuffer to IStream and OStream which describes their functionality better. I tried to keep the variable names and comments also sensible. --HG-- branch : HEAD

Renamed largest_t to uintmax_t which already exists in C99. --HG-- branch : HEAD

Split IOBuffer into mmaped IBuffer, file IBuffer, memory data IBuffer and file OBuffer. --HG-- branch : HEAD

s/temporary memory pool/data stack/ which is the correct name for it. --HG-- branch : HEAD

nearest_power() uses now size_t. --HG-- branch : HEAD

added dec2str() function and largest_t type, removed itoa() and ltoa() macros and did some other cleanups. --HG-- branch : HEAD

config.h should be included first. --HG-- branch : HEAD

64bit off_t fixes --HG-- branch : HEAD

Introduced uoff_t which is the unsigned-equilevant of off_t. This was needed to be able to handle off_t overflows properly. Also changed a few unsigned int fields into uoff_t so we should now support >2G mails if uoff_t is 64bit. Also fixed several potential integer overflows. --HG-- branch : HEAD

Initial revision --HG-- branch : HEAD