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41866: No error unsetting nonexistent function for POSIXBUILTINS

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This commit is contained in:
Martijn Dekker 2017-10-11 20:44:54 +02:00 • committed by Peter Stephenson
parent 2273fe478a
commit bf04ffb542
3 changed files with 11 additions and 1 deletions
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6
Src/builtin.c
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@ -125,7 +125,7 @@ static struct builtin builtins[] =
BUILTIN("unalias", 0, bin_unhash, 0, -1, BIN_UNALIAS, "ams", NULL),
BUILTIN("unfunction", 0, bin_unhash, 1, -1, BIN_UNFUNCTION, "m", "f"),
BUILTIN("unhash", 0, bin_unhash, 1, -1, BIN_UNHASH, "adfms", NULL),
BUILTIN("unset", BINF_PSPECIAL, bin_unset, 1, -1, 0, "fmv", NULL),
BUILTIN("unset", BINF_PSPECIAL, bin_unset, 1, -1, BIN_UNSET, "fmv", NULL),
BUILTIN("unsetopt", 0, bin_setopt, 0, -1, BIN_UNSETOPT, NULL, NULL),
BUILTIN("wait", 0, bin_fg, 0, -1, BIN_WAIT, NULL, NULL),
BUILTIN("whence", 0, bin_whence, 0, -1, 0, "acmpvfsSwx:", NULL),
@ -4158,6 +4158,10 @@ bin_unhash(char *name, char **argv, Options ops, int func)
for (; *argv; argv++) {
if ((hn = ht->removenode(ht, *argv))) {
ht->freenode(hn);
} else if (func == BIN_UNSET && isset(POSIXBUILTINS)) {
/* POSIX: unset: "Unsetting a variable or function that was *
* not previously set shall not be considered an error." */
returnval = 0;
} else {
zwarnnam(name, "no such hash table element: %s", *argv);
returnval = 1;