Red Hat Bugzilla – Bug 56038
setresuid and setresgid not prototyped in unistd.h
Last modified: 2007-04-18 12:38:13 EDT
From Bugzilla Helper: User-Agent: Mozilla/4.77 [en] (X11; U; HP-UX B.11.00 9000/712; Nav) Description of problem: If I do a "man setresuid" on RH 7.2, I get told that the prototypes for both setresuid and setresguid are in <unistd.h>. Sadly, they're not ! I can't even find them in any file under /usr/include. Also, the man page claims it's a "Linux-specific" function, but it actually also exists on HP-UX (and maybe other non-Linux machines too ?). Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. "man setresuid". 2. find /usr/include -exec grep setresuid {} \; -print Actual Results: Man page for setresuid indicates that <unistd.h> should prototype the function. The find command searches down the /usr/include tree looking for any reference to setresuid. It fails to find the prototype. Expected Results: I should have got the prototype defined in <unistd.h> like the man page says. Additional info: <unistd.h> is part of glibc-devel (which isn't listed as a component in this Bugzilla interface !) - so this problem is actually probably more in the realm of the glibc coders than Red Hat, but I thought you'd like to know anyway... The workaround is straightforward - just define the prototypes yourself as the man page lists them: int setresuid(uid_t ruid, uid_t euid, uid_t suid); int setresgid(gid_t rgid, gid_t egid, gid_t sgid); But really, I shouldn't have to do this myself...
According to Ulrich Drepper, this is intentional. So instead the man pages should have #include <unistd.h> deleted. What do you need it for?
jakub: The prototypes can't be found in any header? You have to write them yourself? That doesn't seem like a good thing....
This information was added to man-pages-1.43-2, but I think the headers should be available somewhere...