1 | #include "config.h"
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2 | #include "f2c.h"
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3 | #include "fio.h"
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4 | #include <string.h>
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5 | #if defined (MSDOS) && !defined (GO32)
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6 | #undef abs
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7 | #undef min
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8 | #undef max
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9 | #include "io.h"
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10 | #endif
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11 | integer
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12 | f_inqu (inlist * a)
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13 | {
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14 | flag byfile;
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15 | int i, n;
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16 | unit *p;
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17 | char buf[256];
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18 | long x;
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19 | if (f__init & 2)
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20 | f__fatal (131, "I/O recursion");
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21 | if (a->infile != NULL)
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22 | {
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23 | byfile = 1;
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24 | g_char (a->infile, a->infilen, buf);
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25 | #ifdef NON_UNIX_STDIO
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26 | x = access (buf, 0) ? -1 : 0;
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27 | for (i = 0, p = NULL; i < MXUNIT; i++)
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28 | if (f__units[i].ufd != NULL
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29 | && f__units[i].ufnm != NULL && !strcmp (f__units[i].ufnm, buf))
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30 | {
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31 | p = &f__units[i];
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32 | break;
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33 | }
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34 | #else
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35 | x = f__inode (buf, &n);
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36 | for (i = 0, p = NULL; i < MXUNIT; i++)
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37 | if (f__units[i].uinode == x
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38 | && f__units[i].ufd != NULL && f__units[i].udev == n)
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39 | {
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40 | p = &f__units[i];
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41 | break;
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42 | }
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43 | #endif
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44 | }
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45 | else
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46 | {
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47 | byfile = 0;
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48 | if (a->inunit < MXUNIT && a->inunit >= 0)
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49 | {
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50 | p = &f__units[a->inunit];
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51 | }
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52 | else
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53 | {
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54 | p = NULL;
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55 | }
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56 | }
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57 | if (a->inex != NULL)
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58 | {
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59 | if ((byfile && x != -1) || (!byfile && p != NULL))
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60 | *a->inex = 1;
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61 | else
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62 | *a->inex = 0;
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63 | }
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64 | if (a->inopen != NULL)
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65 | {
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66 | if (byfile)
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67 | *a->inopen = (p != NULL);
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68 | else
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69 | *a->inopen = (p != NULL && p->ufd != NULL);
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70 | }
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71 | if (a->innum != NULL)
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72 | *a->innum = p - f__units;
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73 | if (a->innamed != NULL)
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74 | {
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75 | if (byfile || (p != NULL && p->ufnm != NULL))
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76 | *a->innamed = 1;
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77 | else
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78 | *a->innamed = 0;
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79 | }
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80 | if (a->inname != NULL)
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81 | {
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82 | if (byfile)
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83 | b_char (buf, a->inname, a->innamlen);
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84 | else if (p != NULL && p->ufnm != NULL)
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85 | b_char (p->ufnm, a->inname, a->innamlen);
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86 | }
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87 | if (a->inacc != NULL && p != NULL && p->ufd != NULL)
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88 | {
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89 | if (p->url)
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90 | b_char ("DIRECT", a->inacc, a->inacclen);
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91 | else
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92 | b_char ("SEQUENTIAL", a->inacc, a->inacclen);
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93 | }
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94 | if (a->inseq != NULL)
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95 | {
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96 | if (p != NULL && p->url)
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97 | b_char ("NO", a->inseq, a->inseqlen);
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98 | else
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99 | b_char ("YES", a->inseq, a->inseqlen);
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100 | }
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101 | if (a->indir != NULL)
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102 | {
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103 | if (p == NULL || p->url)
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104 | b_char ("YES", a->indir, a->indirlen);
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105 | else
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106 | b_char ("NO", a->indir, a->indirlen);
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107 | }
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108 | if (a->infmt != NULL)
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109 | {
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110 | if (p != NULL && p->ufmt == 0)
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111 | b_char ("UNFORMATTED", a->infmt, a->infmtlen);
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112 | else
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113 | b_char ("FORMATTED", a->infmt, a->infmtlen);
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114 | }
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115 | if (a->inform != NULL)
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116 | {
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117 | if (p != NULL && p->ufmt == 0)
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118 | b_char ("NO", a->inform, a->informlen);
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119 | else
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120 | b_char ("YES", a->inform, a->informlen);
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121 | }
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122 | if (a->inunf)
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123 | {
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124 | if (p != NULL && p->ufmt == 0)
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125 | b_char ("YES", a->inunf, a->inunflen);
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126 | else if (p != NULL)
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127 | b_char ("NO", a->inunf, a->inunflen);
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128 | else
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129 | b_char ("UNKNOWN", a->inunf, a->inunflen);
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130 | }
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131 | if (a->inrecl != NULL && p != NULL)
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132 | *a->inrecl = p->url;
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133 | if (a->innrec != NULL && p != NULL && p->url > 0)
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134 | *a->innrec = FTELL (p->ufd) / p->url + 1;
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135 | if (a->inblank && p != NULL && p->ufmt)
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136 | {
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137 | if (p->ublnk)
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138 | b_char ("ZERO", a->inblank, a->inblanklen);
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139 | else
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140 | b_char ("NULL", a->inblank, a->inblanklen);
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141 | }
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142 | return (0);
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143 | }
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