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-rw-r--r--lib/libssl/src/crypto/asn1/a_time_tm.c76
1 files changed, 40 insertions, 36 deletions
diff --git a/lib/libssl/src/crypto/asn1/a_time_tm.c b/lib/libssl/src/crypto/asn1/a_time_tm.c
index 65f75c68cc6..7b25e439c4c 100644
--- a/lib/libssl/src/crypto/asn1/a_time_tm.c
+++ b/lib/libssl/src/crypto/asn1/a_time_tm.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: a_time_tm.c,v 1.1 2015/10/02 15:04:45 beck Exp $ */
+/* $OpenBSD: a_time_tm.c,v 1.2 2015/10/04 15:15:11 jsing Exp $ */
/*
* Copyright (c) 2015 Bob Beck <beck@openbsd.org>
*
@@ -32,13 +32,16 @@ gentime_string_from_tm(struct tm *tm)
{
char *ret = NULL;
int year;
+
year = tm->tm_year + 1900;
if (year < 0 || year > 9999)
return (NULL);
+
if (asprintf(&ret, "%04u%02u%02u%02u%02u%02uZ", year,
tm->tm_mon + 1, tm->tm_mday, tm->tm_hour, tm->tm_min,
tm->tm_sec) == -1)
ret = NULL;
+
return (ret);
}
@@ -46,12 +49,15 @@ char *
utctime_string_from_tm(struct tm *tm)
{
char *ret = NULL;
+
if (tm->tm_year >= 150 || tm->tm_year < 50)
return (NULL);
+
if (asprintf(&ret, "%02u%02u%02u%02u%02u%02uZ",
tm->tm_year % 100, tm->tm_mon + 1, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec) == -1)
ret = NULL;
+
return (ret);
}
@@ -74,10 +80,11 @@ utctime_string_from_tm(struct tm *tm)
*/
#define RFC5280 0
#define ATOI2(ar) ((ar) += 2, ((ar)[-2] - '0') * 10 + ((ar)[-1] - '0'))
-int asn1_time_parse(const char * bytes, size_t len, struct tm *tm, int mode)
+int
+asn1_time_parse(const char *bytes, size_t len, struct tm *tm, int mode)
{
char *p, *buf = NULL, *dot = NULL, *tz = NULL;
- int i, offset, noseconds = 0, type = 0;
+ int i, offset = 0, noseconds = 0, type = 0, ret = -1;
struct tm ltm;
struct tm *lt;
size_t tlen;
@@ -89,12 +96,13 @@ int asn1_time_parse(const char * bytes, size_t len, struct tm *tm, int mode)
if (len > INT_MAX)
goto err;
- /* Constrain the RFC5280 case within max/min valid lengths. */
- if (mode == RFC5280 && (len > 15 || len < 13))
+ /* Constrain the RFC5280 case within min/max valid lengths. */
+ if (mode == RFC5280 && (len < 13 || len > 15))
goto err;
if ((buf = strndup(bytes, len)) == NULL)
goto err;
+
lt = tm;
if (lt == NULL) {
time_t t = time(NULL);
@@ -116,7 +124,7 @@ int asn1_time_parse(const char * bytes, size_t len, struct tm *tm, int mode)
dot = t;
continue;
}
- if ((*t == 'Z' || *t == '+' || *t == '-') && tz == NULL) {
+ if ((*t == 'Z' || *t == '+' || *t == '-') && tz == NULL) {
tz = t;
continue;
}
@@ -134,21 +142,20 @@ int asn1_time_parse(const char * bytes, size_t len, struct tm *tm, int mode)
if (tzc == 'Z') {
if (*tz != '\0')
goto err;
- offset = 0;
} else if (mode != RFC5280 && (tzc == '+' || tzc == '-') &&
- (strlen(tz) == 4)) {
- int hours, mins;
- hours = ATOI2(tz);
- mins = ATOI2(tz);
- if (hours > 12 || mins > 59)
+ strlen(tz) == 4) {
+ int hours = ATOI2(tz);
+ int mins = ATOI2(tz);
+
+ if (hours < 0 || hours > 12 || mins < 0 || mins > 59)
goto err;
offset = hours * 3600 + mins * 60;
if (tzc == '-')
offset = -offset;
} else
- goto err;
+ goto err;
- if (mode != RFC5280) {
+ if (offset != 0) {
/* XXX - yuck - OPENSSL_gmtime_adj should go away */
if (!OPENSSL_gmtime_adj(lt, 0, offset))
goto err;
@@ -175,10 +182,9 @@ int asn1_time_parse(const char * bytes, size_t len, struct tm *tm, int mode)
switch (tlen) {
case 14:
lt->tm_year = (ATOI2(p) * 100) - 1900; /* cc */
- if (mode == RFC5280 || mode == V_ASN1_GENERALIZEDTIME)
- type = V_ASN1_GENERALIZEDTIME;
- else
+ if (mode != RFC5280 && mode != V_ASN1_GENERALIZEDTIME)
goto err;
+ type = V_ASN1_GENERALIZEDTIME;
/* FALLTHROUGH */
case 12:
if (type == 0 && mode == V_ASN1_GENERALIZEDTIME) {
@@ -203,10 +209,9 @@ int asn1_time_parse(const char * bytes, size_t len, struct tm *tm, int mode)
if (mode == V_ASN1_GENERALIZEDTIME)
goto err;
if (tlen == 10) {
- if (mode == V_ASN1_UTCTIME)
- noseconds = 1;
- else
+ if (mode != V_ASN1_UTCTIME)
goto err;
+ noseconds = 1;
}
type = V_ASN1_UTCTIME;
}
@@ -215,25 +220,24 @@ int asn1_time_parse(const char * bytes, size_t len, struct tm *tm, int mode)
if (lt->tm_year < 50)
lt->tm_year += 100;
}
- lt->tm_mon = ATOI2(p); /* mm */
- if ((lt->tm_mon > 12) || !lt->tm_mon)
+ lt->tm_mon = ATOI2(p) - 1; /* mm */
+ if (lt->tm_mon < 0 || lt->tm_mon > 11)
goto err;
- --lt->tm_mon; /* struct tm is 0 - 11 */
lt->tm_mday = ATOI2(p); /* dd */
- if ((lt->tm_mday > 31) || !lt->tm_mday)
+ if (lt->tm_mday < 1 || lt->tm_mday > 31)
goto err;
lt->tm_hour = ATOI2(p); /* HH */
- if (lt->tm_hour > 23)
+ if (lt->tm_hour < 0 || lt->tm_hour > 23)
goto err;
lt->tm_min = ATOI2(p); /* MM */
- if (lt->tm_min > 59)
+ if (lt->tm_hour < 0 || lt->tm_min > 59)
goto err;
lt->tm_sec = 0; /* SS */
if (noseconds)
break;
lt->tm_sec = ATOI2(p);
/* Leap second 60 is not accepted. Reconsider later? */
- if (lt->tm_sec > 59)
+ if (lt->tm_hour < 0 || lt->tm_sec > 59)
goto err;
break;
default:
@@ -241,17 +245,17 @@ int asn1_time_parse(const char * bytes, size_t len, struct tm *tm, int mode)
}
/* RFC 5280 section 4.1.2.5 */
- if (mode == RFC5280 && lt->tm_year < 150 &&
- type != V_ASN1_UTCTIME)
- goto err;
- if (mode == RFC5280 && lt->tm_year >= 150 &&
- type != V_ASN1_GENERALIZEDTIME)
- goto err;
+ if (mode == RFC5280) {
+ if (lt->tm_year < 150 && type != V_ASN1_UTCTIME)
+ goto err;
+ if (lt->tm_year >= 150 && type != V_ASN1_GENERALIZEDTIME)
+ goto err;
+ }
- free(buf);
- return type;
+ ret = type;
err:
free(buf);
- return -1;
+
+ return (ret);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-18 22:18:03 +0000