FreeCalypso > hg > freecalypso-tools

annotate uptools/atcmd/smwrite.c @ 407:19e5a3e2f9c0

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fcup-settime: moved time() retrieval a little closer to the output A fundamental problem with all simple time transfer tools is that there is always some delay between the time retrieval on the source system and that transmitted time being set on the destination, and the resulting time on the destination system is off by that delay amount. This delay cannot be fully eliminated when working in a simple environment like ours, but we should make our best effort to minimize it. In the present case, moving the atinterf_init() call before the time() retrieval should make a teensy-tiny improvement.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 11 Aug 2018 21:52:17 +0000
parents ce3b57b8920b
children dc2fd8e6f42c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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385
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Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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2 * This program is a debug and development aid - it uses the AT+CMGW command
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3 * in PDU mode to write messages into SIM or ME SMS storage, simulating
ce3b57b8920b fcup-smwrite program written, compiles
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4 * arbitrary received or sent messages. This trick may come in useful
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Mychaela Falconia <falcon@freecalypso.org>
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5 * in the development and testing of SMS handling in phone handset UI firmware.
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6 */
ce3b57b8920b fcup-smwrite program written, compiles
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7
ce3b57b8920b fcup-smwrite program written, compiles
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8 #include <sys/types.h>
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9 #include <ctype.h>
ce3b57b8920b fcup-smwrite program written, compiles
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10 #include <stdio.h>
ce3b57b8920b fcup-smwrite program written, compiles
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11 #include <stdlib.h>
ce3b57b8920b fcup-smwrite program written, compiles
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12 #include <string.h>
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13 #include <strings.h>
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14 #include <unistd.h>
ce3b57b8920b fcup-smwrite program written, compiles
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15 #include "../../rvinterf/include/exitcodes.h"
ce3b57b8920b fcup-smwrite program written, compiles
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16
ce3b57b8920b fcup-smwrite program written, compiles
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17 extern char at_response[];
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18
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19 char input_line[176*2+2];
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20 int lineno;
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21
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22 process_cmdline(argc, argv)
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23 char **argv;
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24 {
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25 int c;
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26 extern int optind;
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27
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28 while ((c = getopt(argc, argv, "B:np:RX:")) != EOF)
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29 if (!atinterf_cmdline_opt(c)) {
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30 /* error msg already printed */
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31 exit(ERROR_USAGE);
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32 }
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33 if (argc != optind) {
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34 fprintf(stderr, "usage: %s [options]\n", argv[0]);
ce3b57b8920b fcup-smwrite program written, compiles
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35 exit(ERROR_USAGE);
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36 }
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37 return(0);
ce3b57b8920b fcup-smwrite program written, compiles
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38 }
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39
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40 get_input_line()
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41 {
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42 char *nl;
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43
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44 if (!fgets(input_line, sizeof input_line, stdin))
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45 return(0);
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Mychaela Falconia <falcon@freecalypso.org>
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46 lineno++;
ce3b57b8920b fcup-smwrite program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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47 nl = index(input_line, '\n');
ce3b57b8920b fcup-smwrite program written, compiles
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48 if (!nl) {
ce3b57b8920b fcup-smwrite program written, compiles
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49 fprintf(stderr, "input line %d: too long or unterminated\n",
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50 lineno);
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51 exit(ERROR_USAGE);
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52 }
ce3b57b8920b fcup-smwrite program written, compiles
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53 *nl = '\0';
ce3b57b8920b fcup-smwrite program written, compiles
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54 return(1);
ce3b57b8920b fcup-smwrite program written, compiles
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55 }
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56
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57 get_input_line_noeof()
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58 {
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59 int rc;
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60
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61 rc = get_input_line();
ce3b57b8920b fcup-smwrite program written, compiles
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62 if (!rc) {
ce3b57b8920b fcup-smwrite program written, compiles
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63 fprintf(stderr, "error: premature EOF in input\n");
ce3b57b8920b fcup-smwrite program written, compiles
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64 exit(ERROR_USAGE);
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65 }
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66 }
ce3b57b8920b fcup-smwrite program written, compiles
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67
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68 cmgw_callback()
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69 {
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70 /* skip empty lines */
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71 if (at_response[1])
ce3b57b8920b fcup-smwrite program written, compiles
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72 puts(at_response+1);
ce3b57b8920b fcup-smwrite program written, compiles
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73 }
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74
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75 process_record()
ce3b57b8920b fcup-smwrite program written, compiles
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76 {
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Mychaela Falconia <falcon@freecalypso.org>
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77 int msgstat;
ce3b57b8920b fcup-smwrite program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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78 u_char pdubin[176];
ce3b57b8920b fcup-smwrite program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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79 int cc, scalen;
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80 char send_cmd[32];
ce3b57b8920b fcup-smwrite program written, compiles
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81
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82 if (!get_input_line())
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83 return(0);
ce3b57b8920b fcup-smwrite program written, compiles
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84 if (!strcmp(input_line, "Received unread message:"))
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85 msgstat = 0;
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86 else if (!strcmp(input_line, "Received message:"))
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87 msgstat = 1;
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88 else if (!strcmp(input_line, "Stored unsent message:"))
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89 msgstat = 2;
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90 else if (!strcmp(input_line, "Sent message:"))
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91 msgstat = 3;
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92 else {
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93 fprintf(stderr,
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94 "input line %d: expected beginning of message record\n",
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95 lineno);
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96 exit(ERROR_USAGE);
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97 }
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98 for (;;) {
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99 get_input_line_noeof();
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100 if (!isupper(input_line[0]))
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101 break;
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102 if (!index(input_line, ':'))
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103 break;
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104 }
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Mychaela Falconia <falcon@freecalypso.org>
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105 cc = decode_hex_line(input_line, pdubin, sizeof pdubin);
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106 if (cc < 1) {
ce3b57b8920b fcup-smwrite program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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107 inv: fprintf(stderr, "input line %d: not a valid PDU\n", lineno);
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108 exit(ERROR_USAGE);
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109 }
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110 scalen = pdubin[0] + 1;
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111 if (cc < scalen + 1)
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112 goto inv;
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113 /* good to go */
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114 sprintf(send_cmd, "AT+CMGW=%u,%d", cc - scalen, msgstat);
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115 atinterf_exec_cmd_needok(send_cmd, input_line, cmgw_callback);
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116 /* expect blank line after each PDU */
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117 get_input_line_noeof();
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118 if (input_line[0]) {
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119 fprintf(stderr,
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120 "input line %d: expected blank line after PDU\n",
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121 lineno);
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122 exit(ERROR_USAGE);
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123 }
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124 return(1);
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Mychaela Falconia <falcon@freecalypso.org>
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125 }
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126
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127 main(argc, argv)
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128 char **argv;
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129 {
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130 process_cmdline(argc, argv);
ce3b57b8920b fcup-smwrite program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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131 atinterf_init();
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Mychaela Falconia <falcon@freecalypso.org>
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132 /* enable verbose error messages */
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Mychaela Falconia <falcon@freecalypso.org>
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133 atinterf_exec_cmd_needok("AT+CMEE=2", 0, 0);
ce3b57b8920b fcup-smwrite program written, compiles
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134 /* set PDU mode */
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Mychaela Falconia <falcon@freecalypso.org>
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135 atinterf_exec_cmd_needok("AT+CMGF=0", 0, 0);
ce3b57b8920b fcup-smwrite program written, compiles
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136 /* process stdin */
ce3b57b8920b fcup-smwrite program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 while (process_record())
ce3b57b8920b fcup-smwrite program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 ;
ce3b57b8920b fcup-smwrite program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 exit(0);
ce3b57b8920b fcup-smwrite program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 }