annotate helpers/cfg-hdr-gen.c @ 597:f18b29e27be5

First attempt at MCSI voice path automatic switching The function is implemented at the ACI level in both aci2 and aci3, successfully avoids triggering the DSP bug on the first call, but the shutdown of MCSI upon call completion is not working properly yet in either version.
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 27 Mar 2019 22:18:35 +0000
parents b8b08c302ace
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
388
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1 /*
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2 * This helper program generates the set of *.cfg header files, based on a
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3 * template file and environment variables for the non-constant settings.
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4 */
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5
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6 #include <stdio.h>
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7 #include <stdlib.h>
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8 #include <unistd.h>
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9 #include <ctype.h>
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10 #include <string.h>
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11 #include <strings.h>
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12
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13 char *infname;
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14 FILE *inf, *outf;
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15 char include_guard_symbol[32];
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16 char linebuf[256];
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17 int lineno;
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18
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19 make_include_guard_symbol(fname)
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20 char *fname;
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21 {
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22 char *sp, *dp;
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23 int c;
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24
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25 sp = fname;
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26 dp = include_guard_symbol;
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27 *dp++ = '_';
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28 *dp++ = '_';
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29 while (c = *sp++) {
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30 if (islower(c))
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31 c = toupper(c);
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32 else if (c == '.')
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33 c = '_';
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34 *dp++ = c;
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35 }
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36 *dp++ = '_';
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37 *dp++ = '_';
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38 *dp = '\0';
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39 }
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40
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41 close_output()
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42 {
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43 if (outf) {
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44 fprintf(outf, "#endif /* %s */\n", include_guard_symbol);
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45 fclose(outf);
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46 outf = 0;
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47 }
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48 }
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49
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50 bracket_line()
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51 {
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52 char *cp;
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53
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54 close_output();
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55 cp = index(linebuf+1, ']');
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56 if (!cp) {
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57 fprintf(stderr, "%s line %d: unterminated bracket line\n",
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58 infname, lineno);
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59 exit(1);
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60 }
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61 *cp = '\0';
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62 outf = fopen(linebuf+1, "w");
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63 if (!outf) {
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64 perror(linebuf+1);
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65 exit(1);
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66 }
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67 make_include_guard_symbol(linebuf+1);
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68 fprintf(outf, "#ifndef %s\n", include_guard_symbol);
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69 fprintf(outf, "#define %s\n", include_guard_symbol);
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70 }
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71
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72 process_line()
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73 {
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74 char *cp, *symbol, *value;
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75
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76 if (linebuf[0] == '[')
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77 return bracket_line();
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78 for (cp = linebuf; isspace(*cp); cp++)
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79 ;
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80 if (*cp == '\0' || *cp == '#')
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81 return;
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82 for (symbol = cp; *cp && !isspace(*cp); cp++)
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83 ;
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84 if (!*cp) {
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85 inv: fprintf(stderr, "%s line %d: expected two fields\n",
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86 infname, lineno);
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87 exit(1);
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88 }
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89 *cp++ = '\0';
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90 while (isspace(*cp))
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91 cp++;
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92 if (*cp == '\0' || *cp == '#')
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93 goto inv;
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94 for (value = cp; *cp && !isspace(*cp); cp++)
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95 ;
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96 if (*cp)
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97 *cp++ = '\0';
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98 while (isspace(*cp))
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99 cp++;
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100 if (*cp != '\0' && *cp != '#')
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101 goto inv;
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102 if (!strcmp(value, "var")) {
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103 value = getenv(symbol);
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104 if (!value) {
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105 fprintf(stderr,
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106 "%s line %d: no environment variable named %s\n",
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107 infname, lineno, symbol);
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108 exit(1);
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109 }
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110 }
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111 if (!outf) {
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112 fprintf(stderr, "%s line %d: no open output file\n",
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113 infname, lineno);
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114 exit(1);
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115 }
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116 fprintf(outf, "#define %s %s\n", symbol, value);
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117 }
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118
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119 main(argc, argv)
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120 char **argv;
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121 {
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122 if (argc != 3) {
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123 fprintf(stderr, "usage: %s template-file output-dir\n",
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124 argv[0]);
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125 exit(1);
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126 }
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127 infname = argv[1];
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128 inf = fopen(infname, "r");
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129 if (!inf) {
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130 perror(infname);
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131 exit(1);
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132 }
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133 if (chdir(argv[2]) < 0) {
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134 perror(argv[2]);
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135 exit(1);
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136 }
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137 for (lineno = 1; fgets(linebuf, sizeof linebuf, inf); lineno++)
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138 process_line();
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139 close_output();
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140 exit(0);
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141 }