diff options
Diffstat (limited to 'src/crypto/pem/pem_lib.c')
| -rw-r--r-- | src/crypto/pem/pem_lib.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/src/crypto/pem/pem_lib.c b/src/crypto/pem/pem_lib.c index 48e3297..5201467 100644 --- a/src/crypto/pem/pem_lib.c +++ b/src/crypto/pem/pem_lib.c @@ -331,8 +331,9 @@ int PEM_ASN1_write_bio(i2d_of_void *i2d, const char *name, BIO *bp, if (kstr == NULL) { klen = 0; - if (callback) - klen=(*callback)(buf,PEM_BUFSIZE,1,u); + if (!callback) + callback = PEM_def_callback; + klen=(*callback)(buf,PEM_BUFSIZE,1,u); if (klen <= 0) { OPENSSL_PUT_ERROR(PEM, PEM_ASN1_write_bio, PEM_R_READ_KEY); @@ -403,8 +404,8 @@ int PEM_do_header(EVP_CIPHER_INFO *cipher, unsigned char *data, long *plen, if (cipher->cipher == NULL) return(1); klen = 0; - if (callback) - klen=callback(buf,PEM_BUFSIZE,0,u); + if (!callback) callback = PEM_def_callback; + klen=callback(buf,PEM_BUFSIZE,0,u); if (klen <= 0) { OPENSSL_PUT_ERROR(PEM, PEM_do_header, PEM_R_BAD_PASSWORD_READ); @@ -811,3 +812,17 @@ int pem_check_suffix(const char *pem_str, const char *suffix) return p - pem_str; } +int PEM_def_callback(char *buf, int size, int rwflag, void *userdata) + { + if (!buf || !userdata) + { + return 0; + } + size_t len = strlen((char *) userdata); + if (len >= (size_t) size) + { + return 0; + } + strcpy(buf, (char *) userdata); + return len; + } |