diff options
author | Richard Levitte <levitte@openssl.org> | 2015-12-11 16:10:38 +0100 |
---|---|---|
committer | Richard Levitte <levitte@openssl.org> | 2015-12-11 16:18:01 +0100 |
commit | 601ab3151f4e17739465533fc159169f54f43a02 (patch) | |
tree | 75f75c0b05399a9f78300ca524287930a708c399 /crypto/pem | |
parent | b518d2d5f8bad3fd4bb630acae2dafd5b68da9ff (diff) |
Adapt PEM routines to the opaque EVP_ENCODE_CTX
Reviewed-by: Rich Salz <rsalz@openssl.org>
Diffstat (limited to 'crypto/pem')
-rw-r--r-- | crypto/pem/pem_lib.c | 39 | ||||
-rw-r--r-- | crypto/pem/pem_seal.c | 10 |
2 files changed, 30 insertions, 19 deletions
diff --git a/crypto/pem/pem_lib.c b/crypto/pem/pem_lib.c index 23b347ff5e..42a8583fb1 100644 --- a/crypto/pem/pem_lib.c +++ b/crypto/pem/pem_lib.c @@ -600,10 +600,15 @@ int PEM_write_bio(BIO *bp, const char *name, const char *header, { int nlen, n, i, j, outl; unsigned char *buf = NULL; - EVP_ENCODE_CTX ctx; + EVP_ENCODE_CTX *ctx = EVP_ENCODE_CTX_new(); int reason = ERR_R_BUF_LIB; - EVP_EncodeInit(&ctx); + if (ctx == NULL) { + reason = ERR_R_MALLOC_FAILURE; + goto err; + } + + EVP_EncodeInit(ctx); nlen = strlen(name); if ((BIO_write(bp, "-----BEGIN ", 11) != 11) || @@ -626,25 +631,26 @@ int PEM_write_bio(BIO *bp, const char *name, const char *header, i = j = 0; while (len > 0) { n = (int)((len > (PEM_BUFSIZE * 5)) ? (PEM_BUFSIZE * 5) : len); - EVP_EncodeUpdate(&ctx, buf, &outl, &(data[j]), n); + EVP_EncodeUpdate(ctx, buf, &outl, &(data[j]), n); if ((outl) && (BIO_write(bp, (char *)buf, outl) != outl)) goto err; i += outl; len -= n; j += n; } - EVP_EncodeFinal(&ctx, buf, &outl); + EVP_EncodeFinal(ctx, buf, &outl); if ((outl > 0) && (BIO_write(bp, (char *)buf, outl) != outl)) goto err; - OPENSSL_clear_free(buf, PEM_BUFSIZE * 8); - buf = NULL; if ((BIO_write(bp, "-----END ", 9) != 9) || (BIO_write(bp, name, nlen) != nlen) || (BIO_write(bp, "-----\n", 6) != 6)) goto err; + OPENSSL_clear_free(buf, PEM_BUFSIZE * 8); + EVP_ENCODE_CTX_free(ctx); return (i + outl); err: OPENSSL_clear_free(buf, PEM_BUFSIZE * 8); + EVP_ENCODE_CTX_free(ctx); PEMerr(PEM_F_PEM_WRITE_BIO, reason); return (0); } @@ -670,22 +676,23 @@ int PEM_read(FILE *fp, char **name, char **header, unsigned char **data, int PEM_read_bio(BIO *bp, char **name, char **header, unsigned char **data, long *len) { - EVP_ENCODE_CTX ctx; + EVP_ENCODE_CTX *ctx = EVP_ENCODE_CTX_new(); int end = 0, i, k, bl = 0, hl = 0, nohead = 0; char buf[256]; BUF_MEM *nameB; BUF_MEM *headerB; BUF_MEM *dataB, *tmpB; + if (ctx == NULL) { + PEMerr(PEM_F_PEM_READ_BIO, ERR_R_MALLOC_FAILURE); + return (0); + } + nameB = BUF_MEM_new(); headerB = BUF_MEM_new(); dataB = BUF_MEM_new(); if ((nameB == NULL) || (headerB == NULL) || (dataB == NULL)) { - BUF_MEM_free(nameB); - BUF_MEM_free(headerB); - BUF_MEM_free(dataB); - PEMerr(PEM_F_PEM_READ_BIO, ERR_R_MALLOC_FAILURE); - return (0); + goto err; } buf[254] = '\0'; @@ -805,15 +812,15 @@ int PEM_read_bio(BIO *bp, char **name, char **header, unsigned char **data, goto err; } - EVP_DecodeInit(&ctx); - i = EVP_DecodeUpdate(&ctx, + EVP_DecodeInit(ctx); + i = EVP_DecodeUpdate(ctx, (unsigned char *)dataB->data, &bl, (unsigned char *)dataB->data, bl); if (i < 0) { PEMerr(PEM_F_PEM_READ_BIO, PEM_R_BAD_BASE64_DECODE); goto err; } - i = EVP_DecodeFinal(&ctx, (unsigned char *)&(dataB->data[bl]), &k); + i = EVP_DecodeFinal(ctx, (unsigned char *)&(dataB->data[bl]), &k); if (i < 0) { PEMerr(PEM_F_PEM_READ_BIO, PEM_R_BAD_BASE64_DECODE); goto err; @@ -829,11 +836,13 @@ int PEM_read_bio(BIO *bp, char **name, char **header, unsigned char **data, OPENSSL_free(nameB); OPENSSL_free(headerB); OPENSSL_free(dataB); + EVP_ENCODE_CTX_free(ctx); return (1); err: BUF_MEM_free(nameB); BUF_MEM_free(headerB); BUF_MEM_free(dataB); + EVP_ENCODE_CTX_free(ctx); return (0); } diff --git a/crypto/pem/pem_seal.c b/crypto/pem/pem_seal.c index d0db777832..f7c9e3f818 100644 --- a/crypto/pem/pem_seal.c +++ b/crypto/pem/pem_seal.c @@ -91,7 +91,8 @@ int PEM_SealInit(PEM_ENCODE_SEAL_CTX *ctx, EVP_CIPHER *type, EVP_MD *md_type, goto err; } - EVP_EncodeInit(&ctx->encode); + ctx->encode = EVP_ENCODE_CTX_new(); + EVP_EncodeInit(ctx->encode); ctx->md = EVP_MD_CTX_new(); if (!EVP_SignInit(ctx->md, md_type)) @@ -135,7 +136,7 @@ int PEM_SealUpdate(PEM_ENCODE_SEAL_CTX *ctx, unsigned char *out, int *outl, i = inl; if (!EVP_EncryptUpdate(&ctx->cipher, buffer, &j, in, i)) return 0; - EVP_EncodeUpdate(&ctx->encode, out, &j, buffer, j); + EVP_EncodeUpdate(ctx->encode, out, &j, buffer, j); *outl += j; out += j; in += i; @@ -166,10 +167,10 @@ int PEM_SealFinal(PEM_ENCODE_SEAL_CTX *ctx, unsigned char *sig, int *sigl, if (!EVP_EncryptFinal_ex(&ctx->cipher, s, (int *)&i)) goto err; - EVP_EncodeUpdate(&ctx->encode, out, &j, s, i); + EVP_EncodeUpdate(ctx->encode, out, &j, s, i); *outl = j; out += j; - EVP_EncodeFinal(&ctx->encode, out, &j); + EVP_EncodeFinal(ctx->encode, out, &j); *outl += j; if (!EVP_SignFinal(ctx->md, s, &i, priv)) @@ -178,6 +179,7 @@ int PEM_SealFinal(PEM_ENCODE_SEAL_CTX *ctx, unsigned char *sig, int *sigl, ret = 1; err: + EVP_ENCODE_CTX_free(ctx->encode); EVP_MD_CTX_free(ctx->md); EVP_CIPHER_CTX_cleanup(&ctx->cipher); OPENSSL_free(s); |