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annotate utils/smpp-test1.c @ 218:211a043a385f

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smpp-test1 program written, compiles
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 01 Aug 2023 22:38:04 -0800
parents
children 9ba474e918c0
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218
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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2 * This program connects to an SMPP server in the role of a client,
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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3 * sends a bind_transceiver request, and then dumps everything
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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4 * that comes back.
211a043a385f smpp-test1 program written, compiles
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5 */
211a043a385f smpp-test1 program written, compiles
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6
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7 #include <sys/types.h>
211a043a385f smpp-test1 program written, compiles
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8 #include <sys/socket.h>
211a043a385f smpp-test1 program written, compiles
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9 #include <netinet/in.h>
211a043a385f smpp-test1 program written, compiles
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10 #include <arpa/inet.h>
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11 #include <stdio.h>
211a043a385f smpp-test1 program written, compiles
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12 #include <stdlib.h>
211a043a385f smpp-test1 program written, compiles
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13 #include <string.h>
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14 #include <strings.h>
211a043a385f smpp-test1 program written, compiles
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15 #include <unistd.h>
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16
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17 static const u_char bind_req[] = {
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18 0x00, 0x00, 0x00, 0x17, /* command_length */
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19 0x00, 0x00, 0x00, 0x09, /* command_id: bind_transceiver */
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20 0x00, 0x00, 0x00, 0x00, /* command_status */
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21 0x00, 0x00, 0x00, 0x00, /* sequence_number */
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22 0, 0, 0, /* empty strings */
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23 0x34, /* interface_version */
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24 0, 0, 0 /* empty address params */
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25 };
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26
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27 static int tcpsock;
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28 static struct sockaddr_in server_sin;
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29 static u_char rx_hdr[16];
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30 static unsigned rx_pkt_len;
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31
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32 static void
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33 init_stage()
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34 {
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35 int rc;
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36
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37 rc = connect(tcpsock, (struct sockaddr *) &server_sin,
211a043a385f smpp-test1 program written, compiles
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38 sizeof(struct sockaddr_in));
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39 if (rc < 0) {
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40 perror("connect");
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41 exit(1);
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42 }
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43 rc = write(tcpsock, bind_req, sizeof bind_req);
211a043a385f smpp-test1 program written, compiles
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44 if (rc != sizeof bind_req) {
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45 perror("write");
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46 exit(1);
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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47 }
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48 }
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49
211a043a385f smpp-test1 program written, compiles
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50 static void
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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51 rx_bytes(buf, need_len)
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Mychaela Falconia <falcon@freecalypso.org>
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52 u_char *buf;
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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53 unsigned need_len;
211a043a385f smpp-test1 program written, compiles
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54 {
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55 int cc;
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56 unsigned remain;
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57
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58 for (remain = need_len; remain; remain -= cc) {
211a043a385f smpp-test1 program written, compiles
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59 cc = read(tcpsock, buf, remain);
211a043a385f smpp-test1 program written, compiles
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60 if (cc <= 0) {
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Mychaela Falconia <falcon@freecalypso.org>
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61 perror("read");
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62 exit(1);
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63 }
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64 }
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65 }
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66
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67 static void
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68 print_hdr()
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69 {
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70 int i, j, pos;
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71
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72 fputs("Got header:", stdout);
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73 pos = 0;
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74 for (i = 0; i < 4; i++) {
211a043a385f smpp-test1 program written, compiles
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75 putchar(' ');
211a043a385f smpp-test1 program written, compiles
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76 for (j = 0; j < 4; j++)
211a043a385f smpp-test1 program written, compiles
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77 printf("%02X", rx_hdr[pos++]);
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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78 }
211a043a385f smpp-test1 program written, compiles
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79 putchar('\n');
211a043a385f smpp-test1 program written, compiles
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80 }
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81
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82 static void
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Mychaela Falconia <falcon@freecalypso.org>
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83 preen_rx_len()
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84 {
211a043a385f smpp-test1 program written, compiles
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85 rx_pkt_len = (rx_hdr[0] << 24) | (rx_hdr[1] << 16) | (rx_hdr[2] << 8) |
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86 rx_hdr[3];
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87 printf("Rx packet length: %u bytes\n", rx_pkt_len);
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88 if (rx_pkt_len < 16) {
211a043a385f smpp-test1 program written, compiles
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89 printf("Error: packet length is too short\n");
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90 exit(1);
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91 }
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92 }
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93
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94 static void
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Mychaela Falconia <falcon@freecalypso.org>
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95 read_and_dump_body()
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96 {
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97 u_char buf[16];
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98 unsigned offset, chunk;
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99 int i, c;
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100
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101 for (offset = 16; offset < rx_pkt_len; offset += chunk) {
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102 chunk = rx_pkt_len - offset;
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103 if (chunk > 16)
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104 chunk = 16;
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105 rx_bytes(buf, chunk);
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106 printf("%08X: ", offset);
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107 for (i = 0; i < 16; i++) {
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108 if (i < chunk)
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109 printf("%02X ", buf[i]);
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110 else
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111 fputs(" ", stdout);
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112 if (i == 7 || i == 15)
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113 putchar(' ');
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114 }
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115 for (i = 0; i < chunk; i++) {
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116 c = buf[i];
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117 if (c < ' ' || c > '~')
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118 c = '.';
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119 putchar(c);
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120 }
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121 putchar('\n');
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122 }
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123 }
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124
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125 main(argc, argv)
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126 char **argv;
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127 {
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128 if (argc != 2) {
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129 fprintf(stderr, "usage: %s server-ip\n", argv[0]);
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130 exit(1);
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131 }
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132 server_sin.sin_family = AF_INET;
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Mychaela Falconia <falcon@freecalypso.org>
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133 server_sin.sin_addr.s_addr = inet_addr(argv[1]);
211a043a385f smpp-test1 program written, compiles
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134 if (server_sin.sin_addr.s_addr == INADDR_NONE) {
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135 fprintf(stderr, "error: invalid IP address argument \"%s\"\n",
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136 argv[1]);
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137 exit(1);
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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138 }
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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139 server_sin.sin_port = htons(2775);
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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140 tcpsock = socket(AF_INET, SOCK_STREAM, 0);
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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141 if (tcpsock < 0) {
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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142 perror("socket");
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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143 exit(1);
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
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144 }
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
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145 setlinebuf(stdout);
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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146 init_stage();
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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147 for (;;) {
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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148 rx_bytes(rx_hdr, 16);
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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149 print_hdr();
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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150 preen_rx_len();
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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151 read_and_dump_body();
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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152 }
211a043a385f smpp-test1 program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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153 }