There have been some disagreements on strlcpy/strlcat (BSD vs glibc crowd), although by now the debate has died off and these functions are pretty widely used. Also, while here, it would be lovely to have strchrnul() included.

The results (from the minutes http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2377.pdf)

6.33 Sebor, Add strnlen to C2X [N 2351] Result: No consensus on putting N2351 into C2X.

6.34 Sebor, Add stpcpy, and stpncpy to C2X [N 2352] Result: No consensus to put N2352 into C2X.

6.35 Sebor, Add strdup and strndup to C2X [N 2353] Result: N2353 be put into C2X. The committee wants a proposal for the wide character versions of any POSIX functions voted in this meeting.