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Add check for the return value of gcry_sexp_find_token().

git-svn-id: svn+ssh://svn.berlios.de/svnroot/repos/libssh/trunk@536 7dcaeef0-15fb-0310-b436-a5af3365683c
Этот коммит содержится в:
Andreas Schneider 2009-04-18 08:56:22 +00:00
родитель 57a6388b82
Коммит 192657d88c

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@ -326,6 +326,9 @@ PUBLIC_KEY *publickey_from_privatekey(PRIVATE_KEY *prv) {
case TYPE_DSS:
#ifdef HAVE_LIBGCRYPT
sexp = gcry_sexp_find_token(prv->dsa_priv, "p", 0);
if (sexp == NULL) {
goto error;
}
tmp = gcry_sexp_nth_data(sexp, 1, &size);
p = string_new(size);
if (p == NULL) {
@ -335,6 +338,9 @@ PUBLIC_KEY *publickey_from_privatekey(PRIVATE_KEY *prv) {
gcry_sexp_release(sexp);
sexp = gcry_sexp_find_token(prv->dsa_priv,"q",0);
if (sexp == NULL) {
goto error;
}
tmp = gcry_sexp_nth_data(sexp,1,&size);
q = string_new(size);
if (q == NULL) {
@ -344,6 +350,9 @@ PUBLIC_KEY *publickey_from_privatekey(PRIVATE_KEY *prv) {
gcry_sexp_release(sexp);
sexp = gcry_sexp_find_token(prv->dsa_priv, "g", 0);
if (sexp == NULL) {
goto error;
}
tmp = gcry_sexp_nth_data(sexp,1,&size);
g = string_new(size);
if (g == NULL) {
@ -352,8 +361,11 @@ PUBLIC_KEY *publickey_from_privatekey(PRIVATE_KEY *prv) {
string_fill(g,(char *) tmp,size);
gcry_sexp_release(sexp);
sexp=gcry_sexp_find_token(prv->dsa_priv,"y",0);
tmp=gcry_sexp_nth_data(sexp,1,&size);
sexp = gcry_sexp_find_token(prv->dsa_priv,"y",0);
if (sexp == NULL) {
goto error;
}
tmp = gcry_sexp_nth_data(sexp,1,&size);
y = string_new(size);
if (y == NULL) {
goto error;
@ -397,6 +409,9 @@ PUBLIC_KEY *publickey_from_privatekey(PRIVATE_KEY *prv) {
case TYPE_RSA1:
#ifdef HAVE_LIBGCRYPT
sexp = gcry_sexp_find_token(prv->rsa_priv, "n", 0);
if (sexp == NULL) {
goto error;
}
tmp = gcry_sexp_nth_data(sexp, 1, &size);
n = string_new(size);
if (n == NULL) {
@ -406,6 +421,9 @@ PUBLIC_KEY *publickey_from_privatekey(PRIVATE_KEY *prv) {
gcry_sexp_release(sexp);
sexp = gcry_sexp_find_token(prv->rsa_priv, "e", 0);
if (sexp == NULL) {
goto error;
}
tmp = gcry_sexp_nth_data(sexp, 1, &size);
e = string_new(size);
if (e == NULL) {
@ -445,6 +463,7 @@ PUBLIC_KEY *publickey_from_privatekey(PRIVATE_KEY *prv) {
return key;
error:
#ifdef HAVE_LIBGCRYPT
gcry_sexp_release(sexp);
string_burn(p);
string_free(p);
string_burn(q);
@ -482,6 +501,9 @@ static int dsa_public_to_string(DSA *key, BUFFER *buffer) {
gcry_sexp_t sexp;
sexp = gcry_sexp_find_token(key, "p", 0);
if (sexp == NULL) {
goto error;
}
tmp = gcry_sexp_nth_data(sexp, 1, &size);
p = string_new(size);
if (p == NULL) {
@ -491,6 +513,9 @@ static int dsa_public_to_string(DSA *key, BUFFER *buffer) {
gcry_sexp_release(sexp);
sexp = gcry_sexp_find_token(key, "q", 0);
if (sexp == NULL) {
goto error;
}
tmp = gcry_sexp_nth_data(sexp, 1, &size);
q = string_new(size);
if (q == NULL) {
@ -500,6 +525,9 @@ static int dsa_public_to_string(DSA *key, BUFFER *buffer) {
gcry_sexp_release(sexp);
sexp = gcry_sexp_find_token(key, "g", 0);
if (sexp == NULL) {
goto error;
}
tmp = gcry_sexp_nth_data(sexp, 1, &size);
g = string_new(size);
if (g == NULL) {
@ -509,6 +537,9 @@ static int dsa_public_to_string(DSA *key, BUFFER *buffer) {
gcry_sexp_release(sexp);
sexp = gcry_sexp_find_token(key, "y", 0);
if (sexp == NULL) {
goto error;
}
tmp = gcry_sexp_nth_data(sexp, 1, &size);
n = string_new(size);
if (n == NULL) {
@ -541,6 +572,10 @@ static int dsa_public_to_string(DSA *key, BUFFER *buffer) {
rc = 0;
error:
#ifdef HAVE_LIBGCRYPT
gcry_sexp_release(sexp);
#endif
string_burn(p);
string_free(p);
string_burn(q);
@ -570,6 +605,9 @@ static int rsa_public_to_string(RSA *key, BUFFER *buffer) {
gcry_sexp_t sexp;
sexp = gcry_sexp_find_token(key, "n", 0);
if (sexp == NULL) {
goto error;
}
tmp = gcry_sexp_nth_data(sexp, 1, &size);
n = string_new(size);
if (n == NULL) {
@ -579,6 +617,9 @@ static int rsa_public_to_string(RSA *key, BUFFER *buffer) {
gcry_sexp_release(sexp);
sexp = gcry_sexp_find_token(key, "e", 0);
if (sexp == NULL) {
goto error;
}
tmp = gcry_sexp_nth_data(sexp, 1, &size);
e = string_new(size);
if (e == NULL) {
@ -604,6 +645,10 @@ static int rsa_public_to_string(RSA *key, BUFFER *buffer) {
rc = 0;
error:
#ifdef HAVE_LIBGCRYPT
gcry_sexp_release(sexp);
#endif
string_burn(e);
string_free(e);
string_burn(n);