Updated copyright notices to include the year 2018.

lib-fs: Set fs_iter.flags immediately in fs_iter_init() This way backends don't need to set it.

lib-fs: Split allocation from fs.iter_init() to a separate fs.iter_alloc()

lib-fs: Split allocation from fs.file_init() to a separate fs.file_alloc()

Updated copyright notices to include the year 2017.

global: Replaced all instances of memset(p, 0, sizeof(*p)) with the new i_zero() macro. Used the following script: C_FILES=`git ls-files *.c` H_FILES=`git ls-files *.h` for F in "$C_FILES $H_FILES"; do echo "$F" perl -p -i -e 's/safe_memset\(&\(?([^,]*)\)?,\s*0,\s*sizeof\(\g1\)\)/i_zero_safe(&$1)/g' $F perl -p -i -e 's/safe_memset\(([^,]*),\s*0,\s*sizeof\(\*\g1\)\)/i_zero_safe($1)/g' $F perl -p -i -e 's/memset\(&\(?([^,]*)\)?,\s*0,\s*sizeof\(\g1\)\)/i_zero(&$1)/g' $F perl -p -i -e 's/memset\(([^,]*),\s*0,\s*sizeof\(\*\g1\)\)/i_zero($1)/g' $F done

global: Change string position/length from unsigned int to size_t Mainly to avoid truncating >4GB strings, which might potentially cause some security holes. Normally there are other limits, which prevent such excessive strings from being created in the first place. I'm sure this didn't find everything. Maybe everything could be found with compiler warnings. -Wconversion kind of does it, but it gives way too many unnecessary warnings. These were mainly found with: grep " = strlen" egrep "unsigned int.*(size|len)"

lib-fs: Added FS_METADATA_WRITE_FNAME to allow renaming a file being written.

lib-fs: Added fs_get_nlinks() Although fs_stat() could return this, its caller can't indicate whether it actually wants the link count. Usually fs_stat() is used only to get the file's size. In some backends it's not cheap to get the link count, so adding this function allows the caller to explicitly ask for it.

lib-fs: Added fs_switch_ioloop()

lib-dict: dict_transaction_commit*() returns now error string

lib-dict: dict_iterate_deinit() returns now error string

lib-dict: dict_lookup() returns now error string

lib-dict: Renamed dict_init_full() to dict_init()

global: freshen copyright git ls-files | xargs perl -p -i -e 's/(\d+)-201[0-5]/$1-2016/g;s/ (201[0-5]) Dovecot/ $1-2016 Dovecot/'

fs-dict: Implemented hex-encoding for values.

lib-fs: Added "dict" backend, which is a wrapper to using lib-dict.