OpenCoverage

o_time.c

Absolute File Name:

/home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/o_time.c

Source code

Switch to Preprocessed file

Line Source Count

1 /* $OpenBSD: o_time.c,v 1.15 2014/06/12 15:49:27 deraadt Exp $ */ -

2 /* Written by Richard Levitte (richard@levitte.org) for the OpenSSL -

3 * project 2001. -

4 */ -

5 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL -

6 * project 2008. -

7 */ -

8 /* ==================================================================== -

9 * Copyright (c) 2001 The OpenSSL Project. All rights reserved. -

10 * -

11 * Redistribution and use in source and binary forms, with or without -

12 * modification, are permitted provided that the following conditions -

13 * are met: -

14 * -

15 * 1. Redistributions of source code must retain the above copyright -

16 * notice, this list of conditions and the following disclaimer. -

17 * -

18 * 2. Redistributions in binary form must reproduce the above copyright -

19 * notice, this list of conditions and the following disclaimer in -

20 * the documentation and/or other materials provided with the -

21 * distribution. -

22 * -

23 * 3. All advertising materials mentioning features or use of this -

24 * software must display the following acknowledgment: -

25 * "This product includes software developed by the OpenSSL Project -

26 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" -

27 * -

28 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to -

29 * endorse or promote products derived from this software without -

30 * prior written permission. For written permission, please contact -

31 * licensing@OpenSSL.org. -

32 * -

33 * 5. Products derived from this software may not be called "OpenSSL" -

34 * nor may "OpenSSL" appear in their names without prior written -

35 * permission of the OpenSSL Project. -

36 * -

37 * 6. Redistributions of any form whatsoever must retain the following -

38 * acknowledgment: -

39 * "This product includes software developed by the OpenSSL Project -

40 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" -

41 * -

42 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY -

43 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -

44 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR -

45 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR -

46 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -

47 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT -

48 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; -

49 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -

50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, -

51 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) -

52 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED -

53 * OF THE POSSIBILITY OF SUCH DAMAGE. -

54 * ==================================================================== -

55 * -

56 * This product includes cryptographic software written by Eric Young -

57 * (eay@cryptsoft.com). This product includes software written by Tim -

58 * Hudson (tjh@cryptsoft.com). -

59 * -

60 */ -

61 -

62 #include <string.h> -

63 -

64 #include "o_time.h" -

65 -

66 /* Take a tm structure and add an offset to it. This avoids any OS issues -

67 * with restricted date types and overflows which cause the year 2038 -

68 * problem. -

69 */ -

70 -

71 #define SECS_PER_DAY (24 * 60 * 60) -

72 -

73 static long date_to_julian(int y, int m, int d); -

74 static void julian_to_date(long jd, int *y, int *m, int *d); -

75 -

76 int -

77 OPENSSL_gmtime_adj(struct tm *tm, int off_day, long offset_sec) -

78 { -

79 int offset_hms, offset_day; -

80 long time_jd; -

81 int time_year, time_month, time_day; -

82 /* split offset into days and day seconds */ -

83 offset_day = offset_sec / SECS_PER_DAY; -

84 /* Avoid sign issues with % operator */ -

85 offset_hms = offset_sec - (offset_day * SECS_PER_DAY); -

86 offset_day += off_day; -

87 /* Add current time seconds to offset */ -

88 offset_hms += tm->tm_hour * 3600 + tm->tm_min * 60 + tm->tm_sec; -

89 /* Adjust day seconds if overflow */ -

if (offset_hms >= SECS_PER_DAY) {

offset_hms >= (24 * 60 * 60)	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.44.0.1

0-2

91 offset_day++; -

92 offset_hms -= SECS_PER_DAY; -

} else if (offset_hms < 0) {

never executed: end of block

offset_hms < 0	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.44.0.1

0-2

94 offset_day--; -

95 offset_hms += SECS_PER_DAY; -

}

never executed: end of block

0

97 -

98 /* Convert date of time structure into a Julian day number. -

99 */ -

100 -

101 time_year = tm->tm_year + 1900; -

102 time_month = tm->tm_mon + 1; -

103 time_day = tm->tm_mday; -

104 -

105 time_jd = date_to_julian(time_year, time_month, time_day); -

106 -

107 /* Work out Julian day of new date */ -

108 time_jd += offset_day; -

109 -

if (time_jd < 0)

time_jd < 0	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.44.0.1

0-2

return 0;

never executed: return 0;

0

112 -

113 /* Convert Julian day back to date */ -

114 -

115 julian_to_date(time_jd, &time_year, &time_month, &time_day); -

116 -

if (time_year < 1900 || time_year > 9999)

time_year < 1900	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.44.0.1

time_year > 9999	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: libcrypto.so.44.0.1

0-2

return 0;

never executed: return 0;

0

119 -

120 /* Update tm structure */ -

121 -

122 tm->tm_year = time_year - 1900; -

123 tm->tm_mon = time_month - 1; -

124 tm->tm_mday = time_day; -

125 -

126 tm->tm_hour = offset_hms / 3600; -

127 tm->tm_min = (offset_hms / 60) % 60; -

128 tm->tm_sec = offset_hms % 60; -

129 -

return 1;

executed 2 times by 1 test: return 1;

Executed by:

libcrypto.so.44.0.1

2

131 -

132 } -

133 -

134 /* Convert date to and from julian day -

135 * Uses Fliegel & Van Flandern algorithm -

136 */ -

137 static long -

138 date_to_julian(int y, int m, int d) -

139 { -

return (1461 * (y + 4800 + (m - 14) / 12)) / 4 +

executed 2 times by 1 test:

return (1461 * (y + 4800 + (m - 14) / 12)) / 4 + (367 * (m - 2 - 12 * ((m - 14) / 12))) / 12 - (3 * ((y + 4900 + (m - 14) / 12) / 100)) / 4 + d - 32075;

Executed by:

libcrypto.so.44.0.1

2

(367 * (m - 2 - 12 * ((m - 14) / 12))) / 12 -

executed 2 times by 1 test:

return (1461 * (y + 4800 + (m - 14) / 12)) / 4 + (367 * (m - 2 - 12 * ((m - 14) / 12))) / 12 - (3 * ((y + 4900 + (m - 14) / 12) / 100)) / 4 + d - 32075;

Executed by:

libcrypto.so.44.0.1

2

(3 * ((y + 4900 + (m - 14) / 12) / 100)) / 4 +

executed 2 times by 1 test:

return (1461 * (y + 4800 + (m - 14) / 12)) / 4 + (367 * (m - 2 - 12 * ((m - 14) / 12))) / 12 - (3 * ((y + 4900 + (m - 14) / 12) / 100)) / 4 + d - 32075;

Executed by:

libcrypto.so.44.0.1

2

d - 32075;

executed 2 times by 1 test:

return (1461 * (y + 4800 + (m - 14) / 12)) / 4 + (367 * (m - 2 - 12 * ((m - 14) / 12))) / 12 - (3 * ((y + 4900 + (m - 14) / 12) / 100)) / 4 + d - 32075;

Executed by:

libcrypto.so.44.0.1

2

144 } -

145 -

146 static void -

147 julian_to_date(long jd, int *y, int *m, int *d) -

148 { -

149 long L = jd + 68569; -

150 long n = (4 * L) / 146097; -

151 long i, j; -

152 -

153 L = L - (146097 * n + 3) / 4; -

154 i = (4000 * (L + 1)) / 1461001; -

155 L = L - (1461 * i) / 4 + 31; -

156 j = (80 * L) / 2447; -

157 *d = L - (2447 * j) / 80; -

158 L = j / 11; -

159 *m = j + 2 - (12 * L); -

160 *y = 100 * (n - 49) + i + L; -

}

executed 2 times by 1 test: end of block

Executed by:

libcrypto.so.44.0.1

2

Source code

Switch to Preprocessed file

Generated by Squish Coco 4.2.2