032af66467
you can use at framework to send/recv data in socket API example: see examples\tcp_through_module_based_at_socket project: see board\TencentOS_tiny_EVB_MX_Plus\KEIL\tcp_through_module_based_at_socket
123 lines
3.3 KiB
C
123 lines
3.3 KiB
C
/*----------------------------------------------------------------------------
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* Tencent is pleased to support the open source community by making TencentOS
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* available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
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* If you have downloaded a copy of the TencentOS binary from Tencent, please
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* note that the TencentOS binary is licensed under the BSD 3-Clause License.
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*
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* If you have downloaded a copy of the TencentOS source code from Tencent,
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* please note that TencentOS source code is licensed under the BSD 3-Clause
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* License, except for the third-party components listed below which are
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* subject to different license terms. Your integration of TencentOS into your
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* own projects may require compliance with the BSD 3-Clause License, as well
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* as the other licenses applicable to the third-party components included
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* within TencentOS.
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*---------------------------------------------------------------------------*/
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#include "tos_at_socket_lib.h"
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s8_t
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inet_aton(const char *cp, struct in_addr *addr)
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{
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u32_t val;
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s32_t base, n;
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char c;
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u32_t parts[4];
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u32_t* pp = parts;
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c = *cp;
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for (;;) {
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/*
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* Collect number up to ``.''.
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* Values are specified as for C:
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* 0x=hex, 0=octal, isdigit=decimal.
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*/
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if (!isdigit(c))
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return (0);
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val = 0; base = 10;
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if (c == '0') {
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c = *++cp;
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if (c == 'x' || c == 'X')
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base = 16, c = *++cp;
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else
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base = 8;
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}
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for (;;) {
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if (isdigit(c)) {
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val = (val * base) + (s16_t)(c - '0');
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c = *++cp;
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} else if (base == 16 && isxdigit(c)) {
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val = (val << 4) |
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(s16_t)(c + 10 - (islower(c) ? 'a' : 'A'));
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c = *++cp;
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} else
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break;
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}
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if (c == '.') {
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/*
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* Internet format:
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* a.b.c.d
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* a.b.c (with c treated as 16 bits)
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* a.b (with b treated as 24 bits)
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*/
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if (pp >= parts + 3)
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return (0);
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*pp++ = val;
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c = *++cp;
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} else
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break;
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}
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/*
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* Check for trailing characters.
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*/
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if (c != '\0' && (!isascii(c) || !isspace(c)))
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return (0);
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/*
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* Concoct the address according to
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* the number of parts specified.
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*/
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n = pp - parts + 1;
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switch (n) {
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case 0:
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return (0); /* initial nondigit */
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case 1: /* a -- 32 bits */
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break;
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case 2: /* a.b -- 8.24 bits */
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if (val > 0xffffff)
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return (0);
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val |= parts[0] << 24;
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break;
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case 3: /* a.b.c -- 8.8.16 bits */
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if (val > 0xffff)
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return (0);
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val |= (parts[0] << 24) | (parts[1] << 16);
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break;
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case 4: /* a.b.c.d -- 8.8.8.8 bits */
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if (val > 0xff)
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return (0);
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val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8);
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break;
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}
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if (addr)
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addr->s_addr = htonl(val);
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return (1);
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}
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u32_t inet_addr(const char *cp)
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{
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struct in_addr val;
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if (inet_aton(cp, &val)) {
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return (val.s_addr);
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}
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return INADDR_NONE;
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}
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