mirror of
https://github.com/Ponce/slackbuilds
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37 lines
1.3 KiB
Diff
37 lines
1.3 KiB
Diff
From OpenBSD:
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2009-06-01 20:20 deraadt
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* expr.c (1.20): "let --" was crashing ksh; found by
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phy0@rambler.ru. Various other expressions involving ++ and --
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also ran into this. Insufficient checks for end of parse in the
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tokenizer made it assume that an lvalue had been found ok millert
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otto
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Index: pdksh-5.2.14/expr.c
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===================================================================
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--- pdksh-5.2.14.orig/expr.c 2009-09-19 11:22:35.000000000 +0200
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+++ pdksh-5.2.14/expr.c 2009-09-19 12:07:08.000000000 +0200
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@@ -558,7 +558,8 @@
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enum token op;
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struct tbl *vasn;
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{
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- if (vasn->name[0] == '\0' && !(vasn->flag & EXPRLVALUE))
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+ if (es->tok == END ||
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+ (vasn->name[0] == '\0' && !(vasn->flag & EXPRLVALUE)))
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evalerr(es, ET_LVALUE, opinfo[(int) op].name);
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else if (vasn->flag & RDONLY)
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evalerr(es, ET_RDONLY, opinfo[(int) op].name);
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Index: pdksh-5.2.14/tests/debian-114.t
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===================================================================
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--- /dev/null 1970-01-01 00:00:00.000000000 +0000
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+++ pdksh-5.2.14/tests/debian-114.t 2009-09-19 12:11:08.000000000 +0200
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@@ -0,0 +1,8 @@
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+name: debian-114-1
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+description:
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+ Check if let crashes
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+stdin:
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+ let --
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+ exit 0
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+expected-stderr-pattern: /\-\- requires lvalue/
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+---
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