FreeCalypso > hg > freecalypso-tools

annotate rvinterf/asyncshell/tchplay.c @ 1011:6d9b10633f10 default tip

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etmsync Pirelli IMEI retrieval: fix poor use of printf() Bug reported by Vadim Yanitskiy <fixeria@osmocom.org>: the construct where a static-allocated string was passed to printf() without any format arguments causes newer compilers to report a security problem. Given that formatted output is not needed here, just fixed string output, change printf() to fputs(), and direct the error message to stderr while at it.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 23 May 2024 17:29:57 +0000
parents 971906d7763d
children
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1 /*
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2 * TCH uplink play-from-file functionality
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3 */
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4
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5 #include <sys/types.h>
4
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6 #include <ctype.h>
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7 #include <stdio.h>
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8 #include <string.h>
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9 #include <strings.h>
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10 #include <stdlib.h>
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11 #include "pktmux.h"
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12 #include "tch_feature.h"
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13
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14 extern u_char rvi_msg[];
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15 extern int rvi_msg_len;
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16
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17 extern void async_msg_output();
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18
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19 static FILE *play_file;
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20 static int queued_frames;
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21
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22 #define QUEUE_LIMIT 3
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23
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24 static void
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25 sync_msgout(msg)
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26 char *msg;
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27 {
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28 printf("%s\n", msg);
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29 }
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30
4
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31 static
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32 decode_hex_digit(ch)
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33 {
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34 if (isdigit(ch))
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35 return(ch - '0');
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36 else if (isupper(ch))
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37 return(ch - 'A' + 10);
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38 else
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39 return(ch - 'a' + 10);
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40 }
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41
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42 static
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43 decode_hex_line(line, bytes)
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44 char *line;
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45 u_char *bytes;
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46 {
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47 int i;
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48
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49 for (i = 0; i < 33; i++) {
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50 if (!isxdigit(line[0]) || !isxdigit(line[1]))
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51 return(-1);
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52 bytes[i] = (decode_hex_digit(line[0]) << 4) |
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53 decode_hex_digit(line[1]);
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54 line += 2;
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55 }
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56 for (; *line; line++)
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57 if (!isspace(*line))
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58 return(-1);
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59 return(0);
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60 }
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61
0
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62 static void
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63 fill_uplink(msgout)
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64 void (*msgout)();
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65 {
4
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66 char line[80];
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67 u_char sendpkt[35];
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68 int cc;
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69
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70 sendpkt[0] = RVT_TCH_HEADER;
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71 sendpkt[1] = TCH_ULBITS_REQ;
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72 while (queued_frames < QUEUE_LIMIT) {
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73 if (!fgets(line, sizeof line, play_file)) {
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74 msgout("TCH UL: file play finished");
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75 fclose(play_file);
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76 play_file = 0;
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77 return;
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78 }
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79 if (decode_hex_line(line, sendpkt + 2) < 0) {
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80 msgout("TCH UL: bad file input, play aborted");
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81 fclose(play_file);
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82 play_file = 0;
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83 return;
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84 }
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85 send_pkt_to_target(sendpkt, 35);
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86 queued_frames++;
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87 }
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88 }
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89
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90 void
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91 tch_ulbits_conf()
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92 {
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93 if (queued_frames > 0)
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94 queued_frames--;
4
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95 if (play_file)
0
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96 fill_uplink(async_msg_output);
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97 }
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98
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99 static void
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100 cmd_tch_play_start(filename)
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101 char *filename;
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102 {
4
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103 if (play_file) {
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104 printf("error: tch play session already in progress\n");
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105 return;
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106 }
4
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107 play_file = fopen(filename, "r");
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108 if (!play_file) {
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109 perror(filename);
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110 return;
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111 }
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112 printf("Starting TCH UL play from file\n");
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113 tch_rx_control(1);
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114 fill_uplink(sync_msgout);
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115 }
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116
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117 static void
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118 cmd_tch_play_stop()
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119 {
4
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120 if (!play_file) {
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121 printf("error: no tch play session in progress\n");
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122 return;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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123 }
4
971906d7763d fc-shell tch commands: changed to raw hex file format
Mychaela Falconia <falcon@freecalypso.org>
parents: 0
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124 fclose(play_file);
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Mychaela Falconia <falcon@freecalypso.org>
parents: 0
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125 play_file = 0;
0
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parents:
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126 printf("TCH UL play from file terminated\n");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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127 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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128
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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129 void
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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130 cmd_tch_play(argc, argv)
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parents:
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131 char **argv;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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132 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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133 if (argc < 2) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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134 printf("error: too few arguments\n");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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135 return;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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136 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 if (strcmp(argv[1], "stop"))
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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138 cmd_tch_play_start(argv[1]);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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139 else
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 cmd_tch_play_stop();
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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141 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 void
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 show_tch_play_status()
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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145 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 printf("TCH UL play from file: %s\n",
4
971906d7763d fc-shell tch commands: changed to raw hex file format
Mychaela Falconia <falcon@freecalypso.org>
parents: 0
diff changeset
147 play_file ? "RUNNING" : "not running");
0
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 printf("Outstanding UL frames: %d\n", queued_frames);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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149 }