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l2cap_signaling: use assert to check command

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This commit is contained in:
Matthias Ringwald 2021-10-27 16:18:10 +02:00
parent d5a98629e6
commit 436279c9b0
1 changed files with 6 additions and 9 deletions
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15
src/l2cap_signaling.c
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@ -83,14 +83,11 @@ uint16_t l2cap_create_signaling_packet(uint8_t * acl_buffer, hci_con_handle_t ha
};
static const unsigned int num_l2cap_commands = sizeof(l2cap_signaling_commands_format) / sizeof(const char *);
const char *format = NULL;
if ((cmd > 0u) && (cmd <= num_l2cap_commands)) {
format = l2cap_signaling_commands_format[cmd-1u];
}
if (!format){
log_error("l2cap_create_signaling_packet: invalid command id 0x%02x", cmd);
return 0;
}
btstack_assert(0 < cmd);
btstack_assert(cmd <= num_l2cap_commands);
const char *format = l2cap_signaling_commands_format[cmd-1u];
btstack_assert(format != NULL);
// 0 - Connection handle : PB=pb : BC=00
little_endian_store_16(acl_buffer, 0u, handle | (pb_flags << 12u) | (0u << 14u));
@ -136,7 +133,7 @@ uint16_t l2cap_create_signaling_packet(uint8_t * acl_buffer, hci_con_handle_t ha
};
va_end(argptr);
// Fill in various length fields: it's the number of bytes following for ACL lenght and l2cap parameter length
// Fill in various length fields: it's the number of bytes following for ACL length and l2cap parameter length
// - the l2cap payload length is counted after the following channel id (only payload)
// 2 - ACL length