diff options
Diffstat (limited to 'libb64/patches')
| -rw-r--r-- | libb64/patches/fix-one-off-bug.patch | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/libb64/patches/fix-one-off-bug.patch b/libb64/patches/fix-one-off-bug.patch new file mode 100644 index 0000000..00123bc --- /dev/null +++ b/libb64/patches/fix-one-off-bug.patch @@ -0,0 +1,18 @@ +diff -ur a/src/cdecode.c b/src/cdecode.c +--- a/src/cdecode.c 2013-06-18 14:49:36.000000000 +0200 ++++ b/src/cdecode.c 2020-06-18 10:10:50.033461596 +0200 +@@ -10,10 +10,10 @@ + int base64_decode_value(char value_in) + { + static const char decoding[] = {62,-1,-1,-1,63,52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-2,-1,-1,-1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,-1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51}; +- static const char decoding_size = sizeof(decoding); +- value_in -= 43; +- if (value_in < 0 || value_in >= decoding_size) return -1; +- return decoding[(int)value_in]; ++ if (value_in < '+') return -1; ++ value_in -= '+'; ++ if (value_in >= (char)(sizeof(decoding) / sizeof(*decoding)) ) return -1; ++ return decoding[value_in]; + } + + void base64_init_decodestate(base64_decodestate* state_in) |