FreeCalypso > hg > sms-coding-utils

annotate enc-text/main.c @ 28:6e925aa54727

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libcoding: more sensible naming of GSM time encoding and decoding modules
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 13 Jun 2024 02:32:11 +0000
parents e56bb9f09ff1
children
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1 /*
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2 * This is the main module for sms-encode-text utility.
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3 */
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4
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5 #include <sys/types.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 <unistd.h>
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11 #include "defs.h"
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12
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13 int utf8_input, ucs2_mode, allow_escape;
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14 int concat_enable, concat_refno_set;
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15 char msgtext[MAX_MSG_CHARS*3+2];
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16 u_char concat_refno;
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17
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18 process_cmdline(argc, argv)
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19 char **argv;
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20 {
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21 int c;
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22 extern int optind;
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23 extern char *optarg;
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24
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25 while ((c = getopt(argc, argv, "cC:euU")) != EOF) {
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26 switch (c) {
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27 case 'c':
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28 concat_enable = 1;
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29 continue;
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30 case 'C':
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31 concat_enable = 1;
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32 concat_refno = strtoul(optarg, 0, 0);
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33 concat_refno_set = 1;
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34 continue;
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35 case 'e':
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36 allow_escape = 1;
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37 continue;
2
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38 case 'u':
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39 utf8_input = 1;
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40 continue;
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41 case 'U':
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42 ucs2_mode = 1;
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43 continue;
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44 default:
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45 /* error msg already printed */
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46 exit(1);
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47 }
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48 }
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49 if (argc > optind + 1) {
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50 fprintf(stderr, "usage: %s [options] [message]\n", argv[0]);
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51 exit(1);
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52 }
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53 if (argc < optind + 1)
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54 return(0);
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55 if (strlen(argv[optind]) > MAX_MSG_CHARS*3) {
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56 fprintf(stderr, "error: message argument is too long\n");
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57 exit(1);
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58 }
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59 strcpy(msgtext, argv[optind]);
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60 return(1);
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61 }
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62
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63 read_msgtext_from_stdin()
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64 {
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65 unsigned pos, remain;
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66 int cc;
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67
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68 pos = 0;
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69 remain = sizeof(msgtext);
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70 for (;;) {
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71 if (!remain) {
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72 fprintf(stderr,
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73 "error: message on stdin is too long\n");
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74 exit(1);
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75 }
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76 cc = read(0, msgtext + pos, remain);
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77 if (cc < 0) {
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78 fprintf(stderr, "error reading message from stdin\n");
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79 exit(1);
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80 }
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81 if (cc == 0)
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82 break;
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83 pos += cc;
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84 remain -= cc;
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85 }
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86 msgtext[pos] = '\0';
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87 }
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88
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89 trim_trailing_newlines()
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90 {
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91 char *cp;
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92
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93 cp = index(msgtext, '\0');
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94 while (cp > msgtext && cp[-1] == '\n')
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95 cp--;
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96 *cp = '\0';
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97 }
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98
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99 main(argc, argv)
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100 char **argv;
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101 {
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102 if (!process_cmdline(argc, argv))
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103 read_msgtext_from_stdin();
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104 trim_trailing_newlines();
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105 if (ucs2_mode)
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106 ucs2_mode_main();
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107 else
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108 gsm7_mode_main();
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109 }