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18435: unsetting readonly returned status 0

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This commit is contained in:
Peter Stephenson 2003-04-04 16:46:25 +00:00
parent c1bef47364
commit 06b04ca1b2
3 changed files with 13 additions and 6 deletions
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3
ChangeLog
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@ -1,5 +1,8 @@
2003-04-04 Peter Stephenson <pws@csr.com>
* 18435: Src/builtin.c, Src/params.c: spotted by Oliver: unsetting
a readonly variable returned status 0.
* 18434: Completion/Unix/Type/_signals: -a option was handled the
wrong way round so e.g. `kill -' completed pseudo-signals.

6
Src/builtin.c
View file

@ -2580,8 +2580,10 @@ bin_unset(char *name, char **argv, Options ops, int func)
zerrnam(name, "%s: invalid element for unset", s, 0);
returnval = 1;
}
} else
unsetparam_pm(pm, 0, 1);
} else {
if (unsetparam_pm(pm, 0, 1))
returnval = 1;
}
if (ss)
*ss = '[';
}

10
Src/params.c
View file

@ -2214,18 +2214,18 @@ unsetparam(char *s)
/* Unset a parameter */
/**/
mod_export void
mod_export int
unsetparam_pm(Param pm, int altflag, int exp)
{
Param oldpm, altpm;
if ((pm->flags & PM_READONLY) && pm->level <= locallevel) {
zerr("read-only variable: %s", pm->nam, 0);
return;
return 1;
}
if ((pm->flags & PM_RESTRICTED) && isset(RESTRICTED)) {
zerr("%s: restricted", pm->nam, 0);
return;
return 1;
}
pm->unsetfn(pm, exp);
if ((pm->flags & PM_EXPORTED) && pm->env) {
@ -2267,7 +2267,7 @@ unsetparam_pm(Param pm, int altflag, int exp)
*/
if ((pm->level && locallevel >= pm->level) ||
(pm->flags & (PM_SPECIAL|PM_REMOVABLE)) == PM_SPECIAL)
return;
return 0;
/* remove parameter node from table */
paramtab->removenode(paramtab, pm->nam);
@ -2292,6 +2292,8 @@ unsetparam_pm(Param pm, int altflag, int exp)
}
paramtab->freenode((HashNode) pm); /* free parameter node */
return 0;
}
/* Standard function to unset a parameter. This is mostly delegated to *