Harald Welte | 92c45f3 | 2010-06-12 18:59:38 +0200 | [diff] [blame] | 1 | /*- |
| 2 | * Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved. |
| 3 | * Redistribution and modifications are permitted subject to BSD license. |
| 4 | */ |
| 5 | #include <asn_internal.h> |
| 6 | #include <UTCTime.h> |
| 7 | #include <GeneralizedTime.h> |
| 8 | #include <errno.h> |
| 9 | |
| 10 | #ifdef __CYGWIN__ |
| 11 | #include "/usr/include/time.h" |
| 12 | #else |
| 13 | #include <time.h> |
| 14 | #endif /* __CYGWIN__ */ |
| 15 | |
| 16 | #ifndef __ASN_INTERNAL_TEST_MODE__ |
| 17 | |
| 18 | /* |
| 19 | * UTCTime basic type description. |
| 20 | */ |
| 21 | static ber_tlv_tag_t asn_DEF_UTCTime_tags[] = { |
| 22 | (ASN_TAG_CLASS_UNIVERSAL | (23 << 2)), /* [UNIVERSAL 23] IMPLICIT ...*/ |
| 23 | (ASN_TAG_CLASS_UNIVERSAL | (26 << 2)), /* [UNIVERSAL 26] IMPLICIT ...*/ |
| 24 | (ASN_TAG_CLASS_UNIVERSAL | (4 << 2)) /* ... OCTET STRING */ |
| 25 | }; |
| 26 | asn_TYPE_descriptor_t asn_DEF_UTCTime = { |
| 27 | "UTCTime", |
| 28 | "UTCTime", |
| 29 | OCTET_STRING_free, |
| 30 | UTCTime_print, |
| 31 | UTCTime_constraint, |
| 32 | OCTET_STRING_decode_ber, /* Implemented in terms of OCTET STRING */ |
| 33 | OCTET_STRING_encode_der, /* Implemented in terms of OCTET STRING */ |
| 34 | OCTET_STRING_decode_xer_utf8, |
| 35 | UTCTime_encode_xer, |
| 36 | 0, 0, |
| 37 | 0, /* Use generic outmost tag fetcher */ |
| 38 | asn_DEF_UTCTime_tags, |
| 39 | sizeof(asn_DEF_UTCTime_tags) |
| 40 | / sizeof(asn_DEF_UTCTime_tags[0]) - 2, |
| 41 | asn_DEF_UTCTime_tags, |
| 42 | sizeof(asn_DEF_UTCTime_tags) |
| 43 | / sizeof(asn_DEF_UTCTime_tags[0]), |
| 44 | 0, /* No PER visible constraints */ |
| 45 | 0, 0, /* No members */ |
| 46 | 0 /* No specifics */ |
| 47 | }; |
| 48 | |
| 49 | #endif /* __ASN_INTERNAL_TEST_MODE__ */ |
| 50 | |
| 51 | /* |
| 52 | * Check that the time looks like the time. |
| 53 | */ |
| 54 | int |
| 55 | UTCTime_constraint(asn_TYPE_descriptor_t *td, const void *sptr, |
| 56 | asn_app_constraint_failed_f *ctfailcb, void *app_key) { |
| 57 | const UTCTime_t *st = (const UTCTime_t *)sptr; |
| 58 | time_t tloc; |
| 59 | |
| 60 | errno = EPERM; /* Just an unlikely error code */ |
| 61 | tloc = asn_UT2time(st, 0, 0); |
| 62 | if(tloc == -1 && errno != EPERM) { |
| 63 | _ASN_CTFAIL(app_key, td, |
| 64 | "%s: Invalid time format: %s (%s:%d)", |
| 65 | td->name, strerror(errno), __FILE__, __LINE__); |
| 66 | return -1; |
| 67 | } |
| 68 | |
| 69 | return 0; |
| 70 | } |
| 71 | |
| 72 | #ifndef __ASN_INTERNAL_TEST_MODE__ |
| 73 | |
| 74 | asn_enc_rval_t |
| 75 | UTCTime_encode_xer(asn_TYPE_descriptor_t *td, void *sptr, |
| 76 | int ilevel, enum xer_encoder_flags_e flags, |
| 77 | asn_app_consume_bytes_f *cb, void *app_key) { |
| 78 | |
| 79 | if(flags & XER_F_CANONICAL) { |
| 80 | asn_enc_rval_t rv; |
| 81 | UTCTime_t *ut; |
| 82 | struct tm tm; |
| 83 | |
| 84 | errno = EPERM; |
| 85 | if(asn_UT2time((UTCTime_t *)sptr, &tm, 1) == -1 |
| 86 | && errno != EPERM) |
| 87 | _ASN_ENCODE_FAILED; |
| 88 | |
| 89 | /* Fractions are not allowed in UTCTime */ |
| 90 | ut = asn_time2GT(0, 0, 1); |
| 91 | if(!ut) _ASN_ENCODE_FAILED; |
| 92 | |
| 93 | rv = OCTET_STRING_encode_xer_utf8(td, sptr, ilevel, flags, |
| 94 | cb, app_key); |
| 95 | OCTET_STRING_free(&asn_DEF_UTCTime, ut, 0); |
| 96 | return rv; |
| 97 | } else { |
| 98 | return OCTET_STRING_encode_xer_utf8(td, sptr, ilevel, flags, |
| 99 | cb, app_key); |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | #endif /* __ASN_INTERNAL_TEST_MODE__ */ |
| 104 | |
| 105 | int |
| 106 | UTCTime_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel, |
| 107 | asn_app_consume_bytes_f *cb, void *app_key) { |
| 108 | const UTCTime_t *st = (const UTCTime_t *)sptr; |
| 109 | |
| 110 | (void)td; /* Unused argument */ |
| 111 | (void)ilevel; /* Unused argument */ |
| 112 | |
| 113 | if(st && st->buf) { |
| 114 | char buf[32]; |
| 115 | struct tm tm; |
| 116 | int ret; |
| 117 | |
| 118 | errno = EPERM; |
| 119 | if(asn_UT2time(st, &tm, 1) == -1 && errno != EPERM) |
| 120 | return (cb("<bad-value>", 11, app_key) < 0) ? -1 : 0; |
| 121 | |
| 122 | ret = snprintf(buf, sizeof(buf), |
| 123 | "%04d-%02d-%02d %02d:%02d:%02d (GMT)", |
| 124 | tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, |
| 125 | tm.tm_hour, tm.tm_min, tm.tm_sec); |
| 126 | assert(ret > 0 && ret < (int)sizeof(buf)); |
| 127 | return (cb(buf, ret, app_key) < 0) ? -1 : 0; |
| 128 | } else { |
| 129 | return (cb("<absent>", 8, app_key) < 0) ? -1 : 0; |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | time_t |
| 134 | asn_UT2time(const UTCTime_t *st, struct tm *_tm, int as_gmt) { |
| 135 | char buf[24]; /* "AAMMJJhhmmss+hhmm" + cushion */ |
| 136 | GeneralizedTime_t gt; |
| 137 | |
| 138 | if(!st || !st->buf |
| 139 | || st->size < 11 || st->size >= ((int)sizeof(buf) - 2)) { |
| 140 | errno = EINVAL; |
| 141 | return -1; |
| 142 | } |
| 143 | |
| 144 | gt.buf = (unsigned char *)buf; |
| 145 | gt.size = st->size + 2; |
| 146 | memcpy(gt.buf + 2, st->buf, st->size); |
| 147 | if(st->buf[0] > 0x35) { |
| 148 | /* 19xx */ |
| 149 | gt.buf[0] = 0x31; |
| 150 | gt.buf[1] = 0x39; |
| 151 | } else { |
| 152 | /* 20xx */ |
| 153 | gt.buf[0] = 0x32; |
| 154 | gt.buf[1] = 0x30; |
| 155 | } |
| 156 | |
| 157 | return asn_GT2time(>, _tm, as_gmt); |
| 158 | } |
| 159 | |
| 160 | UTCTime_t * |
| 161 | asn_time2UT(UTCTime_t *opt_ut, const struct tm *tm, int force_gmt) { |
| 162 | GeneralizedTime_t *gt = (GeneralizedTime_t *)opt_ut; |
| 163 | |
| 164 | gt = asn_time2GT(gt, tm, force_gmt); |
| 165 | if(gt == 0) return 0; |
| 166 | |
| 167 | assert(gt->size >= 2); |
| 168 | gt->size -= 2; |
| 169 | memmove(gt->buf, gt->buf + 2, gt->size + 1); |
| 170 | |
| 171 | return (UTCTime_t *)gt; |
| 172 | } |
| 173 | |