When interpreting a config value, the config parser reads in 1+ space
character(s) and puts -one- space character in the buffer as soon as
the first non-space character is encountered (if not inside quotes).
Unfortunately the buffer size check lacks the extra space character
which gets inserted at the next non-space character, resulting in
a crash with a specially crafted config entry.
The unit test now uses Java to compile a platform independent
.NET framework to output the test string in C# :o)
    Read: Thanks to Johannes Sixt for the correct printf call
    which replaces the perl invocation.
Signed-off-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
		
	
		
			
				
	
	
		
			51 lines
		
	
	
		
			1.0 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			51 lines
		
	
	
		
			1.0 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
	
	
	
#!/bin/sh
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test_description='Test wacky input to git config'
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. ./test-lib.sh
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setup() {
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	(printf "[section]\n" &&
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	printf "  key = foo") >.git/config
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}
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check() {
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	echo "$2" >expected
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	git config --get "$1" >actual 2>&1
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	test_cmp actual expected
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}
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test_expect_success 'modify same key' '
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	setup &&
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	git config section.key bar &&
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	check section.key bar
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'
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test_expect_success 'add key in same section' '
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	setup &&
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	git config section.other bar &&
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	check section.key foo &&
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	check section.other bar
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'
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test_expect_success 'add key in different section' '
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	setup &&
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	git config section2.key bar &&
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	check section.key foo &&
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	check section2.key bar
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'
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SECTION="test.q\"s\\sq'sp e.key"
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test_expect_success 'make sure git config escapes section names properly' '
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	git config "$SECTION" bar &&
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	check "$SECTION" bar
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'
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LONG_VALUE=$(printf "x%01021dx a" 7)
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test_expect_success 'do not crash on special long config line' '
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	setup &&
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	git config section.key "$LONG_VALUE" &&
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	check section.key "fatal: bad config file line 2 in .git/config"
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'
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test_done
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