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comparison target-utils/simagent/exchange.c @ 784:839bf41e7be0

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simagent: X command parsing bugfix
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 13 Mar 2021 22:08:48 +0000
parents c136a1a2474b
children 56506e9165bc
comparison
equal deleted inserted replaced
783:c136a1a2474b 784:839bf41e7be0
90 void 90 void
91 cmd_exchange(argstr) 91 cmd_exchange(argstr)
92 char *argstr; 92 char *argstr;
93 { 93 {
94 u8 cmd[260]; 94 u8 cmd[260];
95 unsigned count;
95 int rc; 96 int rc;
96 97
97 if (sim_if_state != 2) { 98 if (sim_if_state != 2) {
98 printf("ERROR: SIM interface is not up\n"); 99 printf("ERROR: SIM interface is not up\n");
99 return; 100 return;
100 } 101 }
101 rc = decode_hex_string_arg(argstr, cmd, 260); 102 rc = decode_hex_string_arg(argstr, cmd, 260);
102 if (rc < 0) 103 if (rc < 0)
103 return; 104 return;
104 if (rc < 5) { 105 count = rc;
106 if (count < 5) {
105 printf("ERROR: command APDU is shorter than 5 bytes\n"); 107 printf("ERROR: command APDU is shorter than 5 bytes\n");
106 return; 108 return;
107 } 109 }
108 rc = flush_rx_fifo(); 110 rc = flush_rx_fifo();
109 if (rc < 0) 111 if (rc < 0)
110 return; 112 return;
111 rc = send_to_sim(cmd, 5); 113 rc = send_to_sim(cmd, 5);
112 if (rc < 0) 114 if (rc < 0)
113 return; 115 return;
114 if (rc > 5) 116 if (count > 5)
115 exchange_data_out(cmd[1], cmd + 5, rc - 5); 117 exchange_data_out(cmd[1], cmd + 5, count - 5);
116 else 118 else
117 exchange_data_in(cmd[1], cmd[4]); 119 exchange_data_in(cmd[1], cmd[4]);
118 } 120 }