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test: "test !" was accessing argv past NULL - fix it. Closes 4832

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2012-03-08 03:50:01 +01:00
parent d98dc92d6a
commit 07fcaab595
1 changed files with 8 additions and 7 deletions
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15
coreutils/test.c
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@ -710,7 +710,8 @@ static number_t nexpr(enum token n)
if (n == EOI) {
/* special case: [ ! ], [ a -a ! ] are valid */
/* IOW, "! ARG" may miss ARG */
unnest_msg("<nexpr:1 (!EOI)\n");
args--;
unnest_msg("<nexpr:1 (!EOI), args:%s(%p)\n", args[0], &args[0]);
return 1;
}
res = !nexpr(n);
@ -729,15 +730,15 @@ static number_t aexpr(enum token n)
nest_msg(">aexpr(%s)\n", TOKSTR[n]);
res = nexpr(n);
dbg_msg("aexpr: nexpr:%lld, next args:%s\n", res, args[1]);
dbg_msg("aexpr: nexpr:%lld, next args:%s(%p)\n", res, args[1], &args[1]);
if (check_operator(*++args) == BAND) {
dbg_msg("aexpr: arg is AND, next args:%s\n", args[1]);
dbg_msg("aexpr: arg is AND, next args:%s(%p)\n", args[1], &args[1]);
res = aexpr(check_operator(*++args)) && res;
unnest_msg("<aexpr:%lld\n", res);
return res;
}
args--;
unnest_msg("<aexpr:%lld, args:%s\n", res, args[0]);
unnest_msg("<aexpr:%lld, args:%s(%p)\n", res, args[0], &args[0]);
return res;
}
@ -748,15 +749,15 @@ static number_t oexpr(enum token n)
nest_msg(">oexpr(%s)\n", TOKSTR[n]);
res = aexpr(n);
dbg_msg("oexpr: aexpr:%lld, next args:%s\n", res, args[1]);
dbg_msg("oexpr: aexpr:%lld, next args:%s(%p)\n", res, args[1], &args[1]);
if (check_operator(*++args) == BOR) {
dbg_msg("oexpr: next arg is OR, next args:%s\n", args[1]);
dbg_msg("oexpr: next arg is OR, next args:%s(%p)\n", args[1], &args[1]);
res = oexpr(check_operator(*++args)) || res;
unnest_msg("<oexpr:%lld\n", res);
return res;
}
args--;
unnest_msg("<oexpr:%lld, args:%s\n", res, args[0]);
unnest_msg("<oexpr:%lld, args:%s(%p)\n", res, args[0], &args[0]);
return res;
}