src/bin, branch stable/9

MFC r310367:

2016-12-26T16:45:00Z

pax(1): Fix a bug with archives smaller than 512 bytes. The problem here is that the archive is too short (< 512 bytes). The buffer routines, try to read at least 512 bytes, even when we try to determine what format file we have, which is wrong. Obtained from: NetBSD (CVS rev 1.26)

MFC r300322, 300340:

2016-06-03T03:22:00Z

ed(1): Cleanups for the DES mode. - Use arc4random_buf(3). - Prevent a segmentation fault when ed receives a signal while being in getpass(). [1] Obtained from: OpenBSD [1] (CVS Rev. 1.15)

MFC r299035: sh: Handle empty hostname and $PWD when building prompt

2016-05-11T22:13:50Z

If the hostname is empty and \h is used in $PS1, the remainder of the prompt following \h will be empty. Likewise for $PWD and \w. Fix it.

MFC r298640:

2016-04-29T03:13:18Z

ed(1): switch two statements so we check the index before dereferencing.

MFC r295147:

2016-02-03T11:41:55Z

Make dynamic link of libiconv from ports work again. The symbols of libiconv from ports were changed to have prefixed. Since we have iconv in our libc these days, we don't need it on 10.X and later. However, 9.X still need this.

MFC r292877:

2016-01-06T16:35:30Z

pax: prevent possible buffer overflow Or at least quiet down some static analyzers about it. CID: 978835 Obtained from: OpenBSD

MFC r292454, r292455

2015-12-26T18:38:09Z

ed(1): Prevent possible string overflows Use strlcpy to guarantee NULL termination. With hint from: imp, cem, ngie CID: 1007252

MFC r284105,r284106,r284163:

2015-12-04T17:49:05Z

r284105: Cleanup some indentation issues. r284106: Implement '-s' to copy as symlink, similar to the current -l link(2) handling. r284163: Cleanup some style(9) issues. Relnotes: yes

MFC r245832:

2015-12-04T17:48:11Z

Return "failure" as we do for 'cp -i' and a "n" answer. Relnotes: yes

MFC 269656,270024,270443,270993:

2015-09-09T23:05:52Z

Fix problems with orphan handling. Note that to preserve KBI, p_treeflag has been added to the end of struct proc and is explicitly zero'd during fork. 269656: Correct the problems with the ptrace(2) making the debuggee an orphan. One problem is inferior(9) looping due to the process tree becoming a graph instead of tree if the parent is traced by child. Another issue is due to the use of p_oppid to restore the original parent/child relationship, because real parent could already exited and its pid reused (noted by mjg). Add the function proc_realparent(9), which calculates the parent for given process. It uses the flag P_TREE_FIRST_ORPHAN to detect the head element of the p_orphan list and than stepping back to its container to find the parent process. If the parent has already exited, the init(8) is returned. Move the P_ORPHAN and the new helper flag from the p_flag* to new p_treeflag field of struct proc, which is protected by proctree lock instead of proc lock, since the orphans relationship is managed under the proctree_lock already. The remaining uses of p_oppid in ptrace(PT_DETACH) and process reapping are replaced by proc_realparent(9). 270024: Correct the order of arguments passed to LIST_INSERT_AFTER(). 270443: Properly reparent traced processes when the tracer dies. Previously they were uncoditionally reparented to init. In effect it was possible that tracee was never returned to original parent. 270993: Fix up proc_realparent to always return correct process. Prior to the change it would always return initproc for non-traced processes.