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EVP: allow empty strings to EVP_Decode* functions

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This is a simple check order correction.

Fixes #12143

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/12144)
This commit is contained in:
Richard Levitte 2020-06-13 22:16:14 +02:00 committed by Pauli
parent 670ff08e77
commit 0800288e6e
1 changed files with 1 additions and 1 deletions
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crypto/evp/encode.c
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@ -423,7 +423,7 @@ static int evp_decodeblock_int(EVP_ENCODE_CTX *ctx, unsigned char *t,
table = data_ascii2bin;
/* trim white space from the start of the line. */
while ((conv_ascii2bin(*f, table) == B64_WS) && (n > 0)) {
while ((n > 0) && (conv_ascii2bin(*f, table) == B64_WS)) {
f++;
n--;
}