FreeCalypso > hg > fc-sim-tools

annotate libutil/dbread.c @ 93:6041c601304d

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fcsim1-mkprov: revert OTA key addition It appears that GrcardSIM2 cards (which is what we got for FCSIM1) do not support OTA after all, contrary to what we were previously led to believe by some tech support emails from Grcard - apparently those support emails and OTA descriptions referred to some other card model(s).
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 21 Apr 2021 05:38:39 +0000
parents fa81221ac9b6
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
27
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1 /*
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2 * This module implements functions for reading key=value database files.
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3 */
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4
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5 #include <ctype.h>
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6 #include <stdio.h>
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7 #include <stdlib.h>
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8 #include <string.h>
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9 #include <strings.h>
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10 #include "dbread.h"
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11
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12 static
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13 parse_read_line(dbs, filename_for_errs, lineno_for_errs)
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14 struct dbread_state *dbs;
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15 char *filename_for_errs;
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16 int lineno_for_errs;
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17 {
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18 unsigned n;
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19 char *cp, *np;
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20
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21 n = 0;
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22 for (cp = dbs->linebuf; ; ) {
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23 while (isspace(*cp))
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24 cp++;
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25 if (!*cp)
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26 break;
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27 if (*cp == '=') {
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28 inv_syntax: fprintf(stderr, "%s line %d: invalid syntax\n",
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29 filename_for_errs, lineno_for_errs);
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30 return(-1);
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31 }
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32 for (np = cp; ; cp++) {
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33 if (*cp == '=')
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34 break;
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35 if (!*cp || isspace(*cp))
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36 goto inv_syntax;
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37 }
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38 *cp++ = '\0';
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39 if (n >= DBREAD_MAX_KV_PAIRS) {
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40 fprintf(stderr,
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41 "%s line %d: too many key=value pairs\n",
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42 filename_for_errs, lineno_for_errs);
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43 return(-1);
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44 }
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45 dbs->kv_pairs[n].key = np;
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46 dbs->kv_pairs[n].value = cp;
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47 n++;
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48 while (*cp && !isspace(*cp))
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49 cp++;
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50 if (*cp)
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51 *cp++ = '\0';
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52 }
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53 dbs->num_kv_pairs = n;
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54 return(0);
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55 }
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56
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57 char *
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58 dbread_find_key(dbs, sought_key)
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59 struct dbread_state *dbs;
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60 char *sought_key;
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61 {
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62 unsigned n;
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63
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64 for (n = 0; n < dbs->num_kv_pairs; n++)
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65 if (!strcasecmp(dbs->kv_pairs[n].key, sought_key))
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66 return dbs->kv_pairs[n].value;
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67 return 0;
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68 }
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69
28
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70 char *
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71 dbread_find_key_req(dbs, sought_key)
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72 struct dbread_state *dbs;
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73 char *sought_key;
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74 {
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75 char *val;
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76
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77 val = dbread_find_key(dbs, sought_key);
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78 if (val)
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79 return val;
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80 fprintf(stderr, "error: card record has no %s field\n", sought_key);
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81 return 0;
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82 }
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83
27
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84 dbread_find_record(filename, dbs, sought_key, sought_value)
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85 char *filename, *sought_key, *sought_value;
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86 struct dbread_state *dbs;
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87 {
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88 FILE *inf;
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89 int lineno;
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90 char *cp;
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91
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92 inf = fopen(filename, "r");
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93 if (!inf) {
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94 perror(filename);
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95 return(-1);
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96 }
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97 for (lineno = 1; fgets(dbs->linebuf, DBREAD_LINEBUF_SIZE, inf);
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98 lineno++) {
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99 if (!index(dbs->linebuf, '\n')) {
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100 fprintf(stderr,
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101 "%s line %d: too long or missing newline\n",
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102 filename, lineno);
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103 fclose(inf);
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104 return(-1);
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105 }
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106 if (parse_read_line(dbs, filename, lineno) < 0) {
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107 /* error msg already printed */
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108 fclose(inf);
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109 return(-1);
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110 }
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111 cp = dbread_find_key(dbs, sought_key);
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112 if (!cp)
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113 continue;
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114 if (strcmp(cp, sought_value))
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115 continue;
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116 /* found our record: struct dbread_state is our return */
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117 fclose(inf);
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118 return(0);
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119 }
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120 fclose(inf);
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121 fprintf(stderr, "error: %s=%s not found in %s\n", sought_key,
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122 sought_value, filename);
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123 return(-1);
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124 }