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ash: fix build failure when command built-in is disabled

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Since commit 7eb8eecbb (ash: eval: Add assignment built-in support
again) building BusyBox with the 'command' built-in disabled fails.

parse_command_args() only needs to be called when the 'command'
built-in is run.  Which it won't be if it's disabled.

v2: Avoiding infinite loops is good, too.  Thanks, Harald van Dijk.

Reported-by: Deweloper <deweloper@wp.pl>
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Ron Yorston 2020-02-27 09:50:18 +00:00 committed by Denys Vlasenko
parent d1b75e1842
commit da7a6dbfa5
1 changed files with 3 additions and 1 deletions
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4
shell/ash.c
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@ -8675,7 +8675,6 @@ typecmd(int argc UNUSED_PARAM, char **argv)
return err;
}
#if ENABLE_ASH_CMDCMD
static struct strlist *
fill_arglist(struct arglist *arglist, union node **argpp)
{
@ -8692,6 +8691,7 @@ fill_arglist(struct arglist *arglist, union node **argpp)
return *lastp;
}
#if ENABLE_ASH_CMDCMD
/* Is it "command [-p] PROG ARGS" bltin, no other opts? Return ptr to "PROG" if yes */
static int
parse_command_args(struct arglist *arglist, union node **argpp, const char **path)
@ -10190,11 +10190,13 @@ evalcommand(union node *cmd, int flags)
vlocal = !spclbltin;
}
cmd_is_exec = cmdentry.u.cmd == EXECCMD;
#if ENABLE_ASH_CMDCMD
if (cmdentry.u.cmd != COMMANDCMD)
break;
cmd_flag = parse_command_args(&arglist, &argp, &path);
if (!cmd_flag)
#endif
break;
}