Fix and document BIO_FLAGS_NONCLEAR_RST behavior on memory BIO

[oweals/openssl.git] / crypto / asn1 / a_gentm.c

diff --git a/crypto/asn1/a_gentm.c b/crypto/asn1/a_gentm.c
index 9336b203638f3380f23302464e995439f0d03cc4..d3878d6e57fe4731d083747a024f8acd0cb9fbf7 100644 (file)
--- a/crypto/asn1/a_gentm.c
+++ b/crypto/asn1/a_gentm.c
@@ -17,6 +17,7 @@
 #include <openssl/asn1.h>
 #include "asn1_locl.h"
 
+/* This is the primary function used to parse ASN1_GENERALIZEDTIME */
 int asn1_generalizedtime_to_tm(struct tm *tm, const ASN1_GENERALIZEDTIME *d)
 {
     /* wrapper around asn1_time_to_tm */
@@ -39,15 +40,13 @@ int ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME *s, const char *str)
     t.data = (unsigned char *)str;
     t.flags = 0;
 
-    if (ASN1_GENERALIZEDTIME_check(&t)) {
-        if (s != NULL) {
-            if (!ASN1_STRING_set((ASN1_STRING *)s, str, t.length))
-                return 0;
-            s->type = V_ASN1_GENERALIZEDTIME;
-        }
-        return 1;
-    }
-    return 0;
+    if (!ASN1_GENERALIZEDTIME_check(&t))
+        return 0;
+
+    if (s != NULL && !ASN1_STRING_copy(s, &t))
+        return 0;
+
+    return 1;
 }
 
 ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME *s,
@@ -60,104 +59,24 @@ ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_adj(ASN1_GENERALIZEDTIME *s,
                                                time_t t, int offset_day,
                                                long offset_sec)
 {
-    char *p;
     struct tm *ts;
     struct tm data;
-    const size_t len = 20;
-    ASN1_GENERALIZEDTIME *tmps = NULL;
-
-    if (s == NULL)
-        tmps = ASN1_GENERALIZEDTIME_new();
-    else
-        tmps = s;
-    if (tmps == NULL)
-        return NULL;
 
     ts = OPENSSL_gmtime(&t, &data);
     if (ts == NULL)
-        goto err;
+        return NULL;
 
     if (offset_day || offset_sec) {
         if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec))
-            goto err;
+            return NULL;
     }
 
-    p = (char *)tmps->data;
-    if ((p == NULL) || ((size_t)tmps->length < len)) {
-        p = OPENSSL_malloc(len);
-        if (p == NULL) {
-            ASN1err(ASN1_F_ASN1_GENERALIZEDTIME_ADJ, ERR_R_MALLOC_FAILURE);
-            goto err;
-        }
-        OPENSSL_free(tmps->data);
-        tmps->data = (unsigned char *)p;
-    }
-
-    tmps->length = BIO_snprintf(p, len, "%04d%02d%02d%02d%02d%02dZ",
-                                ts->tm_year + 1900, ts->tm_mon + 1,
-                                ts->tm_mday, ts->tm_hour, ts->tm_min,
-                                ts->tm_sec);
-    tmps->type = V_ASN1_GENERALIZEDTIME;
-#ifdef CHARSET_EBCDIC_not
-    ebcdic2ascii(tmps->data, tmps->data, tmps->length);
-#endif
-    return tmps;
- err:
-    if (s == NULL)
-        ASN1_GENERALIZEDTIME_free(tmps);
-    return NULL;
+    return asn1_time_from_tm(s, ts, V_ASN1_GENERALIZEDTIME);
 }
 
-static const char _asn1_mon[12][4] = {
-    "Jan", "Feb", "Mar", "Apr", "May", "Jun",
-    "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
-};
-
 int ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm)
 {
-    char *v;
-    int gmt = 0;
-    int i;
-    int y = 0, M = 0, d = 0, h = 0, m = 0, s = 0;
-    char *f = NULL;
-    int f_len = 0;
-
-    i = tm->length;
-    v = (char *)tm->data;
-
-    if (i < 12)
-        goto err;
-    if (v[i - 1] == 'Z')
-        gmt = 1;
-    for (i = 0; i < 12; i++)
-        if ((v[i] > '9') || (v[i] < '0'))
-            goto err;
-    y = (v[0] - '0') * 1000 + (v[1] - '0') * 100
-        + (v[2] - '0') * 10 + (v[3] - '0');
-    M = (v[4] - '0') * 10 + (v[5] - '0');
-    if ((M > 12) || (M < 1))
-        goto err;
-    d = (v[6] - '0') * 10 + (v[7] - '0');
-    h = (v[8] - '0') * 10 + (v[9] - '0');
-    m = (v[10] - '0') * 10 + (v[11] - '0');
-    if (tm->length >= 14 &&
-        (v[12] >= '0') && (v[12] <= '9') &&
-        (v[13] >= '0') && (v[13] <= '9')) {
-        s = (v[12] - '0') * 10 + (v[13] - '0');
-        /* Check for fractions of seconds. */
-        if (tm->length >= 15 && v[14] == '.') {
-            int l = tm->length;
-            f = &v[14];         /* The decimal point. */
-            f_len = 1;
-            while (14 + f_len < l && f[f_len] >= '0' && f[f_len] <= '9')
-                ++f_len;
-        }
-    }
-
-    return BIO_printf(bp, "%s %2d %02d:%02d:%02d%.*s %d%s",
-                      _asn1_mon[M - 1], d, h, m, s, f_len, f, y,
-                      (gmt) ? " GMT" : "") > 0;
- err:
-    BIO_write(bp, "Bad time value", 14);
-    return 0;
+    if (tm->type != V_ASN1_GENERALIZEDTIME)
+        return 0;
+    return ASN1_TIME_print(bp, tm);
 }