diff options
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | generic/tclBinary.c | 43 | ||||
| -rw-r--r-- | tests/binary.test | 28 |
3 files changed, 57 insertions, 20 deletions
@@ -1,3 +1,9 @@ +2013-09-01 Donal Fellows <dkf@users.sf.net> + + * generic/tclBinary.c (BinaryDecodeHex): [Bug b98fa55285]: Ensure that + whitespace at the end of a string don't cause the decoder to drop the + last decoded byte. + 2013-08-03 Donal Fellows <dkf@users.sf.net> * library/auto.tcl: [Patch 3611643]: Allow TclOO classes to be found diff --git a/generic/tclBinary.c b/generic/tclBinary.c index 901237b..7625d39 100644 --- a/generic/tclBinary.c +++ b/generic/tclBinary.c @@ -2386,29 +2386,32 @@ BinaryDecodeHex( while (data < dataend) { value = 0; for (i=0 ; i<2 ; i++) { - if (data < dataend) { - c = *data++; - - if (!isxdigit((int) c)) { - if (strict || !isspace(c)) { - goto badChar; - } - i--; - continue; - } + if (data >= dataend) { value <<= 4; - c -= '0'; - if (c > 9) { - c += ('0' - 'A') + 10; - } - if (c > 16) { - c += ('A' - 'a'); + break; + } + + c = *data++; + if (!isxdigit((int) c)) { + if (strict || !isspace(c)) { + goto badChar; } - value |= (c & 0xf); - } else { - value <<= 4; - cut++; + i--; + continue; } + + value <<= 4; + c -= '0'; + if (c > 9) { + c += ('0' - 'A') + 10; + } + if (c > 16) { + c += ('A' - 'a'); + } + value |= (c & 0xf); + } + if (i < 2) { + cut++; } *cursor++ = UCHAR(value); value = 0; diff --git a/tests/binary.test b/tests/binary.test index 4393245..d424837 100644 --- a/tests/binary.test +++ b/tests/binary.test @@ -2499,6 +2499,34 @@ test binary-71.9 {binary decode hex} -body { test binary-71.10 {binary decode hex} -body { string length [binary decode hex " "] } -result 0 +test binary-71.11 {binary decode hex: Bug b98fa55285} -body { + apply {{} { + set str "137b6f95e7519389e7c4b36599781e2ccf492699649249aae43fbe8c26\n" + set decoded [binary decode hex $str] + list [string length $decoded] [scan [string index $decoded end] %c] + }} +} -result {29 38} +test binary-71.12 {binary decode hex: Bug b98fa55285 cross check} -body { + apply {{} { + set str "137b6f95e7519389e7c4b36599781e2ccf492699649249aae43fbe8c2\n" + set decoded [binary decode hex $str] + list [string length $decoded] [scan [string index $decoded end] %c] + }} +} -result {28 140} +test binary-71.13 {binary decode hex: Bug b98fa55285 cross check} -body { + apply {{} { + set str "137b6f95e7519389e7c4b36599781e2ccf492699649249aae43fbe8c2\n\n" + set decoded [binary decode hex $str] + list [string length $decoded] [scan [string index $decoded end] %c] + }} +} -result {28 140} +test binary-71.14 {binary decode hex: Bug b98fa55285 cross check} -body { + apply {{} { + set str "137b6f95e7519389e7c4b36599781e2ccf492699649249aae43fbe8c2\n\n\n" + set decoded [binary decode hex $str] + list [string length $decoded] [scan [string index $decoded end] %c] + }} +} -result {28 140} test binary-72.1 {binary encode base64} -body { binary encode base64 |