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builtin,crypto: fix problems detected by -fsanitize=address,undefined and -fsanitize=memory

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Delyan Angelov 2021-11-28 20:35:18 +02:00
parent b4c52b72cf
commit 31fe02de8c
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GPG key ID: 66886C0F12D595ED
5 changed files with 28 additions and 19 deletions
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9
vlib/encoding/base64/base64.c.v
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@ -210,7 +210,8 @@ pub fn decode_str(data string) string {
unsafe {
buffer := malloc_noscan(size + 1)
buffer[size] = 0
return tos(buffer, decode_in_buffer(data, buffer))
blen := decode_in_buffer(data, buffer)
return tos(buffer, blen)
}
}
@ -230,6 +231,9 @@ pub fn encode_str(data string) string {
// alloc_and_encode is a private function that allocates and encodes data into a string
// Used by encode and encode_str
fn alloc_and_encode(src &byte, len int) string {
if len == 0 {
return ''
}
size := 4 * ((len + 2) / 3)
if size <= 0 {
return ''
@ -237,6 +241,7 @@ fn alloc_and_encode(src &byte, len int) string {
unsafe {
buffer := malloc_noscan(size + 1)
buffer[size] = 0
return tos(buffer, encode_from_buffer(buffer, src, len))
blen := encode_from_buffer(buffer, src, len)
return tos(buffer, blen)
}
}