Last change
on this file since 6099cac was 3ae31e9, checked in by Thomas Lopatic <thomas@…>, 8 years ago |
Imported original source code.
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Property mode
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100755
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File size:
2.0 KB
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1 | /*
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2 | =============================================================================
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3 | gtime.c -- get the time from a string
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4 | Version 1 -- 1988-01-14
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5 | =============================================================================
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6 | */
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7 |
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8 | #include "stddefs.h"
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9 | #include "time.h"
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10 |
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11 | #define dysize(A) (((A) % 4) ? 365 : 366)
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12 |
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13 | extern long timbuf;
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14 |
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15 | static char *cbp;
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16 | static int dmsize[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
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17 |
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18 | /*
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19 | =============================================================================
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20 | gpair() -- get 2 digits
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21 | =============================================================================
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22 | */
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23 |
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24 | static
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25 | int
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26 | gpair()
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27 | {
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28 | register int c, d;
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29 | register char *cp;
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30 |
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31 | cp = cbp;
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32 |
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33 | if(*cp EQ 0)
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34 | return(-1);
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35 |
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36 | c = (*cp++ - '0') * 10;
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37 |
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38 | if (c < 0 OR c > 100)
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39 | return(-1);
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40 |
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41 | if (*cp EQ 0)
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42 | return(-1);
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43 |
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44 | if ((d = *cp++ - '0') < 0 OR d > 9)
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45 | return(-1);
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46 |
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47 | cbp = cp;
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48 |
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49 | return (c + d);
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50 | }
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51 |
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52 | /* |
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53 | */
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54 |
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55 | /*
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56 | =============================================================================
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57 | gtime() -- get time
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58 | =============================================================================
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59 | */
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60 |
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61 | int
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62 | gtime(cp)
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63 | char *cp;
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64 | {
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65 | register int i;
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66 | register int y, t;
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67 | int d, h, m;
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68 | long nt;
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69 | struct tm ntm;
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70 |
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71 | tzset();
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72 |
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73 | cbp = cp;
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74 |
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75 | t = gpair();
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76 |
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77 | if (t < 1 OR t > 12)
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78 | return(1);
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79 |
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80 | d = gpair();
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81 |
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82 | if(d < 1 OR d > 31)
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83 | return(1);
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84 |
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85 | h = gpair();
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86 |
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87 | if (h EQ 24) {
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88 |
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89 | h = 0;
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90 | d++;
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91 | }
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92 |
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93 | m = gpair();
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94 |
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95 | if (m < 0 OR m > 59)
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96 | return(1);
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97 |
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98 | y = gpair();
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99 |
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100 | if (y < 0) {
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101 |
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102 | time(&nt);
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103 | y = lcltime(&nt, &ntm)->tm_year;
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104 | }
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105 |
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106 | if (*cbp EQ 'p')
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107 | h += 12;
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108 |
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109 | if (h < 0 OR h > 23)
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110 | return(1);
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111 |
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112 | timbuf = 0;
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113 | y += 1900;
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114 |
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115 | for(i = 1970; i < y; i++)
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116 | timbuf += dysize(i);
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117 |
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118 | /* Leap year */
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119 |
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120 | if (dysize(y) EQ 366 AND t GE 3)
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121 | timbuf += 1;
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122 |
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123 | while (--t)
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124 | timbuf += dmsize[t - 1];
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125 |
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126 | timbuf += (d - 1);
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127 | timbuf *= 24;
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128 | timbuf += h;
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129 | timbuf *= 60;
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130 | timbuf += m;
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131 | timbuf *= 60;
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132 |
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133 | return(0);
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134 | }
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