diff options
Diffstat (limited to 'crypto/openssl/crypto/evp/bio_b64.c')
| -rw-r--r-- | crypto/openssl/crypto/evp/bio_b64.c | 38 |
1 files changed, 28 insertions, 10 deletions
diff --git a/crypto/openssl/crypto/evp/bio_b64.c b/crypto/openssl/crypto/evp/bio_b64.c index 6e550f6..33349c2 100644 --- a/crypto/openssl/crypto/evp/bio_b64.c +++ b/crypto/openssl/crypto/evp/bio_b64.c @@ -184,7 +184,9 @@ static int b64_read(BIO *b, char *out, int outl) ret_code=0; while (outl > 0) { - if (ctx->cont <= 0) break; + + if (ctx->cont <= 0) + break; i=BIO_read(b->next_bio,&(ctx->tmp[ctx->tmp_len]), B64_BLOCK_SIZE-ctx->tmp_len); @@ -195,11 +197,21 @@ static int b64_read(BIO *b, char *out, int outl) /* Should be continue next time we are called? */ if (!BIO_should_retry(b->next_bio)) + { ctx->cont=i; - /* else we should continue when called again */ - break; + /* If buffer empty break */ + if(ctx->tmp_len == 0) + break; + /* Fall through and process what we have */ + else + i = 0; + } + /* else we retry and add more data to buffer */ + else + break; } i+=ctx->tmp_len; + ctx->tmp_len = i; /* We need to scan, a line at a time until we * have a valid line if we are starting. */ @@ -255,8 +267,12 @@ static int b64_read(BIO *b, char *out, int outl) * reading until a new line. */ if (p == (unsigned char *)&(ctx->tmp[0])) { - ctx->tmp_nl=1; - ctx->tmp_len=0; + /* Check buffer full */ + if (i == B64_BLOCK_SIZE) + { + ctx->tmp_nl=1; + ctx->tmp_len=0; + } } else if (p != q) /* finished on a '\n' */ { @@ -271,6 +287,11 @@ static int b64_read(BIO *b, char *out, int outl) else ctx->tmp_len=0; } + /* If buffer isn't full and we can retry then + * restart to read in more data. + */ + else if ((i < B64_BLOCK_SIZE) && (ctx->cont > 0)) + continue; if (BIO_get_flags(b) & BIO_FLAGS_BASE64_NO_NL) { @@ -310,8 +331,8 @@ static int b64_read(BIO *b, char *out, int outl) i=EVP_DecodeUpdate(&(ctx->base64), (unsigned char *)ctx->buf,&ctx->buf_len, (unsigned char *)ctx->tmp,i); + ctx->tmp_len = 0; } - ctx->cont=i; ctx->buf_off=0; if (i < 0) { @@ -484,10 +505,7 @@ again: { i=b64_write(b,NULL,0); if (i < 0) - { - ret=i; - break; - } + return i; } if (BIO_get_flags(b) & BIO_FLAGS_BASE64_NO_NL) { |
