annotate ringtools/fc-ringlist-comp.c @ 1000:39a6090a052a

doc/How-flash-really-works: article written
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 09 Dec 2023 09:08:19 +0000
parents f442156d31ad
children
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f442156d31ad ringtools: fc-ringlist-comp program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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2 * This program compiles a list of ringing tone or message alert tone
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3 * melodies from ASCII source into the binary format (.mls) that will
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4 * be uploaded into FreeCalypso device FFS and read by the UI layer
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5 * of FC phone firmwares.
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6 */
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7
f442156d31ad ringtools: fc-ringlist-comp program written, compiles
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8 #include <stdio.h>
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9 #include <stdlib.h>
f442156d31ad ringtools: fc-ringlist-comp program written, compiles
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10 #include <ctype.h>
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11 #include <string.h>
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12 #include <strings.h>
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13
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14 #define MAX_FFS_PATHNAME 19
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15 #define MAX_FFS_PREFIX 5
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16 #define MAX_NAME_FIELD 59
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17
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18 struct bin_record {
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19 char ffs_pathname[MAX_FFS_PATHNAME+1];
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20 char ui_name[MAX_NAME_FIELD+1];
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21 };
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22
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23 char *infname, *outfname;
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24 FILE *inf, *outf;
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25 char ffs_prefix[MAX_FFS_PREFIX+2];
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26 unsigned ffs_prefix_len;
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27 char linebuf[256];
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28 int lineno;
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29
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30 set_ffs_prefix(prefix_arg)
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31 char *prefix_arg;
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32 {
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33 char *cp;
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34
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35 if (prefix_arg[0] != '/') {
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36 fprintf(stderr,
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37 "error: given FFS prefix does not begin with \'/\'\n");
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38 exit(1);
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39 }
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40 ffs_prefix_len = strlen(prefix_arg);
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41 if (ffs_prefix_len > MAX_FFS_PREFIX) {
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42 fprintf(stderr, "error: given FFS prefix is too long\n");
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43 exit(1);
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44 }
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45 strcpy(ffs_prefix, prefix_arg);
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46 cp = ffs_prefix + ffs_prefix_len;
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47 if (cp[-1] != '/') {
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48 cp[0] = '/';
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49 cp[1] = '\0';
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50 ffs_prefix_len++;
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51 }
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52 }
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53
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54 enforce_and_strip_newline()
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55 {
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56 char *cp;
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57
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58 cp = index(linebuf, '\n');
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59 if (!cp) {
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60 fprintf(stderr, "%s line %d: too long or missing newline\n",
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61 infname, lineno);
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62 exit(1);
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63 }
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64 *cp = '\0';
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65 }
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66
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67 emit_record(fname, uname)
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68 char *fname, *uname;
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69 {
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70 struct bin_record rec;
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71
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72 strcpy(rec.ffs_pathname, ffs_prefix);
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73 strncpy(rec.ffs_pathname + ffs_prefix_len, fname,
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74 MAX_FFS_PATHNAME + 1 - ffs_prefix_len);
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75 strncpy(rec.ui_name, uname, MAX_NAME_FIELD + 1);
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76 fwrite(&rec, sizeof rec, 1, outf);
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77 }
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78
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79 process_line()
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80 {
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81 char *cp, *fname, *uname;
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82
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83 cp = linebuf;
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84 while (isspace(*cp))
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85 cp++;
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86 if (*cp == '\0' || *cp == '#')
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87 return;
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88 fname = cp;
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89 while (*cp && !isspace(*cp))
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90 cp++;
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91 if (!*cp) {
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92 inv: fprintf(stderr, "%s line %d: invalid syntax\n",
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93 infname, lineno);
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94 exit(1);
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95 }
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96 *cp++ = '\0';
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97 while (isspace(*cp))
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98 cp++;
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99 if (*cp == '\0' || *cp == '#')
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100 goto inv;
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101 uname = cp;
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102 if (strlen(fname) + ffs_prefix_len > MAX_FFS_PATHNAME) {
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103 fprintf(stderr, "%s line %d: melody filename exceeds limit\n",
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104 infname, lineno);
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105 exit(1);
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106 }
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107 if (strlen(uname) > MAX_NAME_FIELD) {
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108 fprintf(stderr, "%s line %d: melody UI name exceeds limit\n",
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109 infname, lineno);
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110 exit(1);
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111 }
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112 emit_record(fname, uname);
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113 }
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114
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115 main(argc, argv)
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116 char **argv;
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117 {
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118 if (argc != 4) {
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119 fprintf(stderr, "usage: %s src-file bin-file ffs-prefix\n",
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120 argv[0]);
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121 exit(1);
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122 }
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123 if (strcmp(argv[1], "-")) {
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124 infname = argv[1];
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125 inf = fopen(infname, "r");
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126 if (!inf) {
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127 perror(infname);
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128 exit(1);
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129 }
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130 } else {
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131 infname = "stdin";
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132 inf = stdin;
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133 }
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134 set_ffs_prefix(argv[3]);
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135 outfname = argv[2];
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136 outf = fopen(outfname, "w");
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137 if (!outf) {
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138 perror(outfname);
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139 exit(1);
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140 }
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141
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142 for (lineno = 1; fgets(linebuf, sizeof linebuf, inf); lineno++) {
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143 enforce_and_strip_newline();
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144 process_line();
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145 }
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146 exit(0);
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147 }