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23671: command not found handler

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This commit is contained in:
Peter Stephenson 2007-07-13 10:09:06 +00:00
parent a1374319dc
commit eea6647c65
3 changed files with 41 additions and 0 deletions
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23
Src/exec.c
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@ -468,6 +468,25 @@ isgooderr(int e, char *dir)
e != ENOENT && e != ENOTDIR);
}
/*
* Attempt to handle command not found.
* Return 0 if the condition was handled, non-zero otherwise.
*/
/**/
static int
commandnotfound(char *arg0, LinkList args)
{
Shfunc shf = (Shfunc)
shfunctab->getnode(shfunctab, "command_not_found_handler");
if (!shf)
return 127;
pushnode(args, arg0);
return doshfunc(shf->node.nam, shf->funcdef, args, shf->node.flags, 1);
}
/* execute an external command */
/**/
@ -562,6 +581,8 @@ execute(LinkList args, int flags, int defpath)
}
if (!ps) {
if (commandnotfound(arg0, args) == 0)
_exit(0);
zerr("command not found: %s", arg0);
_exit(127);
}
@ -624,6 +645,8 @@ execute(LinkList args, int flags, int defpath)
if (eno)
zerr("%e: %s", eno, arg0);
else if (commandnotfound(arg0, args) == 0)
_exit(0);
else
zerr("command not found: %s", arg0);
_exit((eno == EACCES || eno == ENOEXEC) ? 126 : 127);