Some minor refactoring in asn1.c
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@ -88,7 +88,7 @@ int asn1_known_oid(chunk_t object)
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}
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}
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}
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return -1;
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return OID_UNKNOWN;
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}
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/*
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@ -129,7 +129,8 @@ chunk_t asn1_build_known_oid(int n)
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chunk_t asn1_oid_from_string(char *str)
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{
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enumerator_t *enumerator;
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u_char buf[64];
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size_t buf_len = 64;
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u_char buf[buf_len];
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char *end;
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int i = 0, pos = 0, shift;
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u_int val, shifted_val, first = 0;
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@ -138,7 +139,7 @@ chunk_t asn1_oid_from_string(char *str)
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while (enumerator->enumerate(enumerator, &str))
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{
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val = strtoul(str, &end, 10);
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if (end == str || pos > countof(buf))
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if (end == str || pos > buf_len-4)
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{
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pos = 0;
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break;
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@ -175,8 +176,9 @@ chunk_t asn1_oid_from_string(char *str)
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*/
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char *asn1_oid_to_string(chunk_t oid)
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{
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char buf[64], *pos = buf;
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int len;
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size_t len = 64;
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char buf[len], *pos = buf;
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int written;
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u_int val;
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if (!oid.len)
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@ -184,13 +186,14 @@ char *asn1_oid_to_string(chunk_t oid)
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return NULL;
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}
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val = oid.ptr[0] / 40;
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len = snprintf(buf, sizeof(buf), "%u.%u", val, oid.ptr[0] - val * 40);
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written = snprintf(buf, len, "%u.%u", val, oid.ptr[0] - val * 40);
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oid = chunk_skip(oid, 1);
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if (len < 0 || len >= sizeof(buf))
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if (written < 0 || written >= len)
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{
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return NULL;
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}
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pos += len;
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pos += written;
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len -= written;
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val = 0;
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while (oid.len)
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@ -199,12 +202,13 @@ char *asn1_oid_to_string(chunk_t oid)
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if (oid.ptr[0] < 128)
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{
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len = snprintf(pos, sizeof(buf) + buf - pos, ".%u", val);
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if (len < 0 || len >= sizeof(buf) + buf - pos)
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written = snprintf(pos, len, ".%u", val);
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if (written < 0 || written >= len)
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{
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return NULL;
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}
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pos += len;
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pos += written;
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len -= written;
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val = 0;
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}
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oid = chunk_skip(oid, 1);
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@ -675,7 +679,9 @@ bool asn1_is_printablestring(chunk_t str)
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for (i = 0; i < str.len; i++)
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{
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if (strchr(printablestring_charset, str.ptr[i]) == NULL)
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{
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return FALSE;
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}
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}
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return TRUE;
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}
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