Old notes on functions that should maybe have warn_unused_result annotations
The text below was formerly in the file WUR-REPORT in the source tree. It has not been updated since 2012.
<unistd.h>: lssek: Probably should be __wur but lseek(fd,SEEK_SET,0) will succeed if the descriptor is fine. lseek64: same <stdio.h>: setvbuf: if stream and buffer are fine and other parameters constant, it cannot really fail. fseek: see lseek fseeko: likewise fgetpos: similarly fsetpos: likewise <stdlib.h>: atexit: it is guaranteed that a certain number of handlers can be registered, so some calls might need not be checked on_exit: same random functions: one might want to discard a number of results. In any case, no security problem putenv: probably SHOULD be marked, but we'll wait a bit. setenv: likewise unsetenv: likewise clearenv: likewise mbstowcs: probably SHOULD be marked wcstombs: likewise ptsname_r: probably SHOULD be marked