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-rw-r--r--apps/s_client.c11
-rw-r--r--crypto/asn1/f_int.c10
-rw-r--r--crypto/asn1/f_string.c10
-rw-r--r--crypto/bn/bn_print.c9
-rw-r--r--crypto/pem/pem_lib.c9
-rw-r--r--crypto/poly1305/poly1305.c11
-rw-r--r--crypto/x509v3/v3_utl.c12
-rw-r--r--test/danetest.c13
8 files changed, 26 insertions, 59 deletions
diff --git a/apps/s_client.c b/apps/s_client.c
index fada838b68..d8d55014d7 100644
--- a/apps/s_client.c
+++ b/apps/s_client.c
@@ -518,19 +518,16 @@ static ossl_ssize_t hexdecode(const char **inptr, void *result)
return -1;
for (byte = 0; *in; ++in) {
- char c;
+ int x;
if (isspace(_UC(*in)))
continue;
- c = tolower(_UC(*in));
- if ('0' <= c && c <= '9') {
- byte |= c - '0';
- } else if ('a' <= c && c <= 'f') {
- byte |= c - 'a' + 10;
- } else {
+ x = OPENSSL_hexchar2int(*in);
+ if (x < 0) {
OPENSSL_free(ret);
return 0;
}
+ byte |= (char)x;
if ((nibble ^= 1) == 0) {
*cp++ = byte;
byte = 0;
diff --git a/crypto/asn1/f_int.c b/crypto/asn1/f_int.c
index e0e49de475..99932aab15 100644
--- a/crypto/asn1/f_int.c
+++ b/crypto/asn1/f_int.c
@@ -175,14 +175,8 @@ int a2i_ASN1_INTEGER(BIO *bp, ASN1_INTEGER *bs, char *buf, int size)
}
for (j = 0; j < i; j++, k += 2) {
for (n = 0; n < 2; n++) {
- m = bufp[k + n];
- if ((m >= '0') && (m <= '9'))
- m -= '0';
- else if ((m >= 'a') && (m <= 'f'))
- m = m - 'a' + 10;
- else if ((m >= 'A') && (m <= 'F'))
- m = m - 'A' + 10;
- else {
+ m = OPENSSL_hexchar2int(bufp[k + n]);
+ if (m < 0) {
ASN1err(ASN1_F_A2I_ASN1_INTEGER,
ASN1_R_NON_HEX_CHARACTERS);
goto err;
diff --git a/crypto/asn1/f_string.c b/crypto/asn1/f_string.c
index 2b2b545dee..892e011876 100644
--- a/crypto/asn1/f_string.c
+++ b/crypto/asn1/f_string.c
@@ -167,14 +167,8 @@ int a2i_ASN1_STRING(BIO *bp, ASN1_STRING *bs, char *buf, int size)
}
for (j = 0; j < i; j++, k += 2) {
for (n = 0; n < 2; n++) {
- m = bufp[k + n];
- if ((m >= '0') && (m <= '9'))
- m -= '0';
- else if ((m >= 'a') && (m <= 'f'))
- m = m - 'a' + 10;
- else if ((m >= 'A') && (m <= 'F'))
- m = m - 'A' + 10;
- else {
+ m = OPENSSL_hexchar2int(bufp[k + n]);
+ if (m < 0) {
ASN1err(ASN1_F_A2I_ASN1_STRING,
ASN1_R_NON_HEX_CHARACTERS);
return 0;
diff --git a/crypto/bn/bn_print.c b/crypto/bn/bn_print.c
index 0c3b214f12..c00b7248ed 100644
--- a/crypto/bn/bn_print.c
+++ b/crypto/bn/bn_print.c
@@ -215,13 +215,8 @@ int BN_hex2bn(BIGNUM **bn, const char *a)
l = 0;
for (;;) {
c = a[j - m];
- if ((c >= '0') && (c <= '9'))
- k = c - '0';
- else if ((c >= 'a') && (c <= 'f'))
- k = c - 'a' + 10;
- else if ((c >= 'A') && (c <= 'F'))
- k = c - 'A' + 10;
- else
+ k = OPENSSL_hexchar2int(c);
+ if (k < 0)
k = 0; /* paranoia */
l = (l << 4) | k;
diff --git a/crypto/pem/pem_lib.c b/crypto/pem/pem_lib.c
index 4ca61875ee..fce8a3adf2 100644
--- a/crypto/pem/pem_lib.c
+++ b/crypto/pem/pem_lib.c
@@ -558,13 +558,8 @@ static int load_iv(char **fromp, unsigned char *to, int num)
to[i] = 0;
num *= 2;
for (i = 0; i < num; i++) {
- if ((*from >= '0') && (*from <= '9'))
- v = *from - '0';
- else if ((*from >= 'A') && (*from <= 'F'))
- v = *from - 'A' + 10;
- else if ((*from >= 'a') && (*from <= 'f'))
- v = *from - 'a' + 10;
- else {
+ v = OPENSSL_hexchar2int(*from);
+ if (v < 0) {
PEMerr(PEM_F_LOAD_IV, PEM_R_BAD_IV_CHARS);
return (0);
}
diff --git a/crypto/poly1305/poly1305.c b/crypto/poly1305/poly1305.c
index a7c4a0824e..fd6d32090d 100644
--- a/crypto/poly1305/poly1305.c
+++ b/crypto/poly1305/poly1305.c
@@ -871,14 +871,11 @@ static const struct poly1305_test poly1305_tests[] = {
static unsigned char hex_digit(char h)
{
- if (h >= '0' && h <= '9')
- return h - '0';
- else if (h >= 'a' && h <= 'f')
- return h - 'a' + 10;
- else if (h >= 'A' && h <= 'F')
- return h - 'A' + 10;
- else
+ int i = OPENSSL_hexchar2int(h);
+
+ if (i < 0)
abort();
+ return i;
}
static void hex_decode(unsigned char *out, const char *hex)
diff --git a/crypto/x509v3/v3_utl.c b/crypto/x509v3/v3_utl.c
index ae9645d687..a5016bad76 100644
--- a/crypto/x509v3/v3_utl.c
+++ b/crypto/x509v3/v3_utl.c
@@ -1177,19 +1177,17 @@ static int ipv6_hex(unsigned char *out, const char *in, int inlen)
{
unsigned char c;
unsigned int num = 0;
+ int x;
+
if (inlen > 4)
return 0;
while (inlen--) {
c = *in++;
num <<= 4;
- if ((c >= '0') && (c <= '9'))
- num |= c - '0';
- else if ((c >= 'A') && (c <= 'F'))
- num |= c - 'A' + 10;
- else if ((c >= 'a') && (c <= 'f'))
- num |= c - 'a' + 10;
- else
+ x = OPENSSL_hexchar2int(c);
+ if (x < 0)
return 0;
+ num |= (char)x;
}
out[0] = num >> 8;
out[1] = num & 0xff;
diff --git a/test/danetest.c b/test/danetest.c
index 3bcc02e504..75bcb58f30 100644
--- a/test/danetest.c
+++ b/test/danetest.c
@@ -198,7 +198,7 @@ static STACK_OF(X509) *load_chain(BIO *fp, int nelem)
fprintf(stderr, "error reading: malformed %s\n", errtype);
goto err;
}
-
+
if (count == nelem) {
ERR_clear_error();
return chain;
@@ -252,19 +252,16 @@ static ossl_ssize_t hexdecode(const char *in, void *result)
return -1;
for (byte = 0; *in; ++in) {
- char c;
+ int x;
if (isspace(_UC(*in)))
continue;
- c = tolower(_UC(*in));
- if ('0' <= c && c <= '9') {
- byte |= c - '0';
- } else if ('a' <= c && c <= 'f') {
- byte |= c - 'a' + 10;
- } else {
+ x = OPENSSL_hexchar2int(*in);
+ if (x < 0) {
OPENSSL_free(ret);
return 0;
}
+ byte |= (char)x;
if ((nibble ^= 1) == 0) {
*cp++ = byte;
byte = 0;
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