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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /security/nss/cmd/lib/derprint.c
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'security/nss/cmd/lib/derprint.c')
-rw-r--r--security/nss/cmd/lib/derprint.c594
1 files changed, 594 insertions, 0 deletions
diff --git a/security/nss/cmd/lib/derprint.c b/security/nss/cmd/lib/derprint.c
new file mode 100644
index 000000000..08ef66d08
--- /dev/null
+++ b/security/nss/cmd/lib/derprint.c
@@ -0,0 +1,594 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#include "secutil.h"
+#include "secoid.h"
+
+#ifdef __sun
+extern int fprintf(FILE *strm, const char *format, ... /* args */);
+extern int fflush(FILE *stream);
+#endif
+
+#define RIGHT_MARGIN 24
+/*#define RAW_BYTES 1 */
+
+static int prettyColumn = 0;
+
+static int
+getInteger256(const unsigned char *data, unsigned int nb)
+{
+ int val;
+
+ switch (nb) {
+ case 1:
+ val = data[0];
+ break;
+ case 2:
+ val = (data[0] << 8) | data[1];
+ break;
+ case 3:
+ val = (data[0] << 16) | (data[1] << 8) | data[2];
+ break;
+ case 4:
+ /* If the most significant bit of data[0] is 1, val would be negative.
+ * Treat it as an error.
+ */
+ if (data[0] & 0x80) {
+ PORT_SetError(SEC_ERROR_BAD_DER);
+ return -1;
+ }
+ val = (data[0] << 24) | (data[1] << 16) | (data[2] << 8) | data[3];
+ break;
+ default:
+ PORT_SetError(SEC_ERROR_BAD_DER);
+ return -1;
+ }
+
+ return val;
+}
+
+static int
+prettyNewline(FILE *out)
+{
+ int rv;
+
+ if (prettyColumn != -1) {
+ rv = fprintf(out, "\n");
+ prettyColumn = -1;
+ if (rv < 0) {
+ PORT_SetError(SEC_ERROR_IO);
+ return rv;
+ }
+ }
+ return 0;
+}
+
+static int
+prettyIndent(FILE *out, unsigned level)
+{
+ unsigned int i;
+ int rv;
+
+ if (prettyColumn == -1) {
+ prettyColumn = level;
+ for (i = 0; i < level; i++) {
+ rv = fprintf(out, " ");
+ if (rv < 0) {
+ PORT_SetError(SEC_ERROR_IO);
+ return rv;
+ }
+ }
+ }
+
+ return 0;
+}
+
+static int
+prettyPrintByte(FILE *out, unsigned char item, unsigned int level)
+{
+ int rv;
+
+ rv = prettyIndent(out, level);
+ if (rv < 0)
+ return rv;
+
+ rv = fprintf(out, "%02x ", item);
+ if (rv < 0) {
+ PORT_SetError(SEC_ERROR_IO);
+ return rv;
+ }
+
+ prettyColumn++;
+ if (prettyColumn >= RIGHT_MARGIN) {
+ return prettyNewline(out);
+ }
+
+ return 0;
+}
+
+static int
+prettyPrintLeaf(FILE *out, const unsigned char *data,
+ unsigned int len, unsigned int lv)
+{
+ unsigned int i;
+ int rv;
+
+ for (i = 0; i < len; i++) {
+ rv = prettyPrintByte(out, *data++, lv);
+ if (rv < 0)
+ return rv;
+ }
+ return prettyNewline(out);
+}
+
+static int
+prettyPrintStringStart(FILE *out, const unsigned char *str,
+ unsigned int len, unsigned int level)
+{
+#define BUF_SIZE 100
+ unsigned char buf[BUF_SIZE];
+ int rv;
+
+ if (len >= BUF_SIZE)
+ len = BUF_SIZE - 1;
+
+ rv = prettyNewline(out);
+ if (rv < 0)
+ return rv;
+
+ rv = prettyIndent(out, level);
+ if (rv < 0)
+ return rv;
+
+ memcpy(buf, str, len);
+ buf[len] = '\000';
+
+ rv = fprintf(out, "\"%s\"", buf);
+ if (rv < 0) {
+ PORT_SetError(SEC_ERROR_IO);
+ return rv;
+ }
+
+ return 0;
+#undef BUF_SIZE
+}
+
+static int
+prettyPrintString(FILE *out, const unsigned char *str,
+ unsigned int len, unsigned int level, PRBool raw)
+{
+ int rv;
+
+ rv = prettyPrintStringStart(out, str, len, level);
+ if (rv < 0)
+ return rv;
+
+ rv = prettyNewline(out);
+ if (rv < 0)
+ return rv;
+
+ if (raw) {
+ rv = prettyPrintLeaf(out, str, len, level);
+ if (rv < 0)
+ return rv;
+ }
+
+ return 0;
+}
+
+static int
+prettyPrintTime(FILE *out, const unsigned char *str,
+ unsigned int len, unsigned int level, PRBool raw, PRBool utc)
+{
+ SECItem time_item;
+ int rv;
+
+ rv = prettyPrintStringStart(out, str, len, level);
+ if (rv < 0)
+ return rv;
+
+ time_item.data = (unsigned char *)str;
+ time_item.len = len;
+
+ rv = fprintf(out, " (");
+ if (rv < 0) {
+ PORT_SetError(SEC_ERROR_IO);
+ return rv;
+ }
+
+ if (utc)
+ SECU_PrintUTCTime(out, &time_item, NULL, 0);
+ else
+ SECU_PrintGeneralizedTime(out, &time_item, NULL, 0);
+
+ rv = fprintf(out, ")");
+ if (rv < 0) {
+ PORT_SetError(SEC_ERROR_IO);
+ return rv;
+ }
+
+ rv = prettyNewline(out);
+ if (rv < 0)
+ return rv;
+
+ if (raw) {
+ rv = prettyPrintLeaf(out, str, len, level);
+ if (rv < 0)
+ return rv;
+ }
+
+ return 0;
+}
+
+static int
+prettyPrintObjectID(FILE *out, const unsigned char *data,
+ unsigned int len, unsigned int level, PRBool raw)
+{
+ SECOidData *oiddata;
+ SECItem oiditem;
+ unsigned int i;
+ unsigned long val;
+ int rv;
+
+ /*
+ * First print the Object Id in numeric format
+ */
+
+ rv = prettyIndent(out, level);
+ if (rv < 0)
+ return rv;
+
+ if (len == 0) {
+ PORT_SetError(SEC_ERROR_BAD_DER);
+ return -1;
+ }
+ val = data[0];
+ i = val % 40;
+ val = val / 40;
+ rv = fprintf(out, "%lu %u ", val, i);
+ if (rv < 0) {
+ PORT_SetError(SEC_ERROR_IO);
+ return rv;
+ }
+
+ val = 0;
+ for (i = 1; i < len; ++i) {
+ unsigned long j;
+
+ j = data[i];
+ val = (val << 7) | (j & 0x7f);
+ if (j & 0x80)
+ continue;
+ rv = fprintf(out, "%lu ", val);
+ if (rv < 0) {
+ PORT_SetError(SEC_ERROR_IO);
+ return rv;
+ }
+ val = 0;
+ }
+
+ /*
+ * Now try to look it up and print a symbolic version.
+ */
+ oiditem.data = (unsigned char *)data;
+ oiditem.len = len;
+ oiddata = SECOID_FindOID(&oiditem);
+ if (oiddata != NULL) {
+ i = PORT_Strlen(oiddata->desc);
+ if ((prettyColumn + 1 + (i / 3)) > RIGHT_MARGIN) {
+ rv = prettyNewline(out);
+ if (rv < 0)
+ return rv;
+ }
+
+ rv = prettyIndent(out, level);
+ if (rv < 0)
+ return rv;
+
+ rv = fprintf(out, "(%s)", oiddata->desc);
+ if (rv < 0) {
+ PORT_SetError(SEC_ERROR_IO);
+ return rv;
+ }
+ }
+
+ rv = prettyNewline(out);
+ if (rv < 0)
+ return rv;
+
+ if (raw) {
+ rv = prettyPrintLeaf(out, data, len, level);
+ if (rv < 0)
+ return rv;
+ }
+
+ return 0;
+}
+
+static char *prettyTagType[32] = {
+ "End of Contents",
+ "Boolean",
+ "Integer",
+ "Bit String",
+ "Octet String",
+ "NULL",
+ "Object Identifier",
+ "0x07",
+ "0x08",
+ "0x09",
+ "Enumerated",
+ "0x0B",
+ "UTF8 String",
+ "0x0D",
+ "0x0E",
+ "0x0F",
+ "Sequence",
+ "Set",
+ "0x12",
+ "Printable String",
+ "T61 String",
+ "0x15",
+ "IA5 String",
+ "UTC Time",
+ "Generalized Time",
+ "0x19",
+ "Visible String",
+ "0x1B",
+ "Universal String",
+ "0x1D",
+ "BMP String",
+ "High-Tag-Number"
+};
+
+static int
+prettyPrintTag(FILE *out, const unsigned char *src, const unsigned char *end,
+ unsigned char *codep, unsigned int level, PRBool raw)
+{
+ int rv;
+ unsigned char code, tagnum;
+
+ if (src >= end) {
+ PORT_SetError(SEC_ERROR_BAD_DER);
+ return -1;
+ }
+
+ code = *src;
+ tagnum = code & SEC_ASN1_TAGNUM_MASK;
+
+ /*
+ * NOTE: This code does not (yet) handle the high-tag-number form!
+ */
+ if (tagnum == SEC_ASN1_HIGH_TAG_NUMBER) {
+ PORT_SetError(SEC_ERROR_BAD_DER);
+ return -1;
+ }
+
+ if (raw)
+ rv = prettyPrintByte(out, code, level);
+ else
+ rv = prettyIndent(out, level);
+
+ if (rv < 0)
+ return rv;
+
+ if (code & SEC_ASN1_CONSTRUCTED) {
+ rv = fprintf(out, "C-");
+ if (rv < 0) {
+ PORT_SetError(SEC_ERROR_IO);
+ return rv;
+ }
+ }
+
+ switch (code & SEC_ASN1_CLASS_MASK) {
+ case SEC_ASN1_UNIVERSAL:
+ rv = fprintf(out, "%s ", prettyTagType[tagnum]);
+ break;
+ case SEC_ASN1_APPLICATION:
+ rv = fprintf(out, "Application: %d ", tagnum);
+ break;
+ case SEC_ASN1_CONTEXT_SPECIFIC:
+ rv = fprintf(out, "[%d] ", tagnum);
+ break;
+ case SEC_ASN1_PRIVATE:
+ rv = fprintf(out, "Private: %d ", tagnum);
+ break;
+ }
+
+ if (rv < 0) {
+ PORT_SetError(SEC_ERROR_IO);
+ return rv;
+ }
+
+ *codep = code;
+
+ return 1;
+}
+
+static int
+prettyPrintLength(FILE *out, const unsigned char *data, const unsigned char *end,
+ int *lenp, PRBool *indefinitep, unsigned int lv, PRBool raw)
+{
+ unsigned char lbyte;
+ int lenLen;
+ int rv;
+
+ if (data >= end) {
+ PORT_SetError(SEC_ERROR_BAD_DER);
+ return -1;
+ }
+
+ rv = fprintf(out, " ");
+ if (rv < 0) {
+ PORT_SetError(SEC_ERROR_IO);
+ return rv;
+ }
+
+ *indefinitep = PR_FALSE;
+
+ lbyte = *data++;
+ lenLen = 1;
+ if (lbyte >= 0x80) {
+ /* Multibyte length */
+ unsigned nb = (unsigned)(lbyte & 0x7f);
+ if (nb > 4) {
+ PORT_SetError(SEC_ERROR_BAD_DER);
+ return -1;
+ }
+ if (nb > 0) {
+ int il;
+
+ if ((data + nb) > end) {
+ PORT_SetError(SEC_ERROR_BAD_DER);
+ return -1;
+ }
+ il = getInteger256(data, nb);
+ if (il < 0)
+ return -1;
+ *lenp = (unsigned)il;
+ } else {
+ *lenp = 0;
+ *indefinitep = PR_TRUE;
+ }
+ lenLen += nb;
+ if (raw) {
+ unsigned int i;
+
+ rv = prettyPrintByte(out, lbyte, lv);
+ if (rv < 0)
+ return rv;
+ for (i = 0; i < nb; i++) {
+ rv = prettyPrintByte(out, data[i], lv);
+ if (rv < 0)
+ return rv;
+ }
+ }
+ } else {
+ *lenp = lbyte;
+ if (raw) {
+ rv = prettyPrintByte(out, lbyte, lv);
+ if (rv < 0)
+ return rv;
+ }
+ }
+ if (*indefinitep)
+ rv = fprintf(out, "(indefinite)\n");
+ else
+ rv = fprintf(out, "(%d)\n", *lenp);
+ if (rv < 0) {
+ PORT_SetError(SEC_ERROR_IO);
+ return rv;
+ }
+
+ prettyColumn = -1;
+ return lenLen;
+}
+
+static int
+prettyPrintItem(FILE *out, const unsigned char *data, const unsigned char *end,
+ unsigned int lv, PRBool raw)
+{
+ int slen;
+ int lenLen;
+ const unsigned char *orig = data;
+ int rv;
+
+ while (data < end) {
+ unsigned char code;
+ PRBool indefinite;
+
+ slen = prettyPrintTag(out, data, end, &code, lv, raw);
+ if (slen < 0)
+ return slen;
+ data += slen;
+
+ lenLen = prettyPrintLength(out, data, end, &slen, &indefinite, lv, raw);
+ if (lenLen < 0)
+ return lenLen;
+ data += lenLen;
+
+ /*
+ * Just quit now if slen more bytes puts us off the end.
+ */
+ if ((data + slen) > end) {
+ PORT_SetError(SEC_ERROR_BAD_DER);
+ return -1;
+ }
+
+ if (code & SEC_ASN1_CONSTRUCTED) {
+ if (slen > 0 || indefinite) {
+ slen = prettyPrintItem(out, data,
+ slen == 0 ? end : data + slen,
+ lv + 1, raw);
+ if (slen < 0)
+ return slen;
+ data += slen;
+ }
+ } else if (code == 0) {
+ if (slen != 0 || lenLen != 1) {
+ PORT_SetError(SEC_ERROR_BAD_DER);
+ return -1;
+ }
+ break;
+ } else {
+ switch (code) {
+ case SEC_ASN1_PRINTABLE_STRING:
+ case SEC_ASN1_IA5_STRING:
+ case SEC_ASN1_VISIBLE_STRING:
+ rv = prettyPrintString(out, data, slen, lv + 1, raw);
+ if (rv < 0)
+ return rv;
+ break;
+ case SEC_ASN1_UTC_TIME:
+ rv = prettyPrintTime(out, data, slen, lv + 1, raw, PR_TRUE);
+ if (rv < 0)
+ return rv;
+ break;
+ case SEC_ASN1_GENERALIZED_TIME:
+ rv = prettyPrintTime(out, data, slen, lv + 1, raw, PR_FALSE);
+ if (rv < 0)
+ return rv;
+ break;
+ case SEC_ASN1_OBJECT_ID:
+ rv = prettyPrintObjectID(out, data, slen, lv + 1, raw);
+ if (rv < 0)
+ return rv;
+ break;
+ case SEC_ASN1_BOOLEAN: /* could do nicer job */
+ case SEC_ASN1_INTEGER: /* could do nicer job */
+ case SEC_ASN1_BIT_STRING: /* could do nicer job */
+ case SEC_ASN1_OCTET_STRING:
+ case SEC_ASN1_NULL:
+ case SEC_ASN1_ENUMERATED: /* could do nicer job, as INTEGER */
+ case SEC_ASN1_UTF8_STRING:
+ case SEC_ASN1_T61_STRING: /* print as printable string? */
+ case SEC_ASN1_UNIVERSAL_STRING:
+ case SEC_ASN1_BMP_STRING:
+ default:
+ rv = prettyPrintLeaf(out, data, slen, lv + 1);
+ if (rv < 0)
+ return rv;
+ break;
+ }
+ data += slen;
+ }
+ }
+
+ rv = prettyNewline(out);
+ if (rv < 0)
+ return rv;
+
+ return data - orig;
+}
+
+SECStatus
+DER_PrettyPrint(FILE *out, const SECItem *it, PRBool raw)
+{
+ int rv;
+
+ prettyColumn = -1;
+
+ rv = prettyPrintItem(out, it->data, it->data + it->len, 0, raw);
+ if (rv < 0)
+ return SECFailure;
+ return SECSuccess;
+}