diff options
Diffstat (limited to 'stacks/lwip_stack/lwip_src/common/stackx_ip_addr.c')
-rw-r--r-- | stacks/lwip_stack/lwip_src/common/stackx_ip_addr.c | 280 |
1 files changed, 0 insertions, 280 deletions
diff --git a/stacks/lwip_stack/lwip_src/common/stackx_ip_addr.c b/stacks/lwip_stack/lwip_src/common/stackx_ip_addr.c deleted file mode 100644 index 306bcaf..0000000 --- a/stacks/lwip_stack/lwip_src/common/stackx_ip_addr.c +++ /dev/null @@ -1,280 +0,0 @@ -/* -* -* Copyright (c) 2018 Huawei Technologies Co.,Ltd. -* Licensed under the Apache License, Version 2.0 (the "License"); -* you may not use this file except in compliance with the License. -* You may obtain a copy of the License at: -* -* http://www.apache.org/licenses/LICENSE-2.0 -* -* Unless required by applicable law or agreed to in writing, software -* distributed under the License is distributed on an "AS IS" BASIS, -* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -* See the License for the specific language governing permissions and -* limitations under the License. -*/ - -#include <stdint.h> -#include <stddef.h> -#include "stackx_ip_addr.h" -#include "nstack_log.h" -#include "spl_def.h" - -/* Here for now until needed in other places in stackx*/ -#ifndef isprint -#define in_range(c, lo, up) ((u8)c >= lo && (u8)c <= up) -#define isprint(c) in_range(c, 0x20, 0x7f) -#define isdigit(c) in_range(c, '0', '9') -#define isxdigit(c) (isdigit(c) || in_range(c, 'a', 'f') || in_range(c, 'A', 'F')) -#define islower(c) in_range(c, 'a', 'z') -#define isspace(c) (c == ' ' || c == '\f' || c == '\n' || c == '\r' || c == '\t' || c == '\v') -#endif - -/** - * Ascii internet address interpretation routine. - * The value returned is in network order. - * - * @param cp IPaddress in ascii represenation (e.g. "127.0.0.1") - * @return ipaddress in network order - */ -u32 -spl_ipaddr_addr (const char *cp) -{ - spl_ip_addr_t val; - - if (spl_ipaddr_aton (cp, &val)) - { - return ip4_addr_get_u32 (&val); - } - - return (SPL_IPADDR_NONE); -} - -/** - * Check whether "cp" is a valid ascii representation - * of an Internet address and convert to a binary address. - * Returns 1 if the address is valid, 0 if not. - * This replaces inet_addr, the return value from which - * cannot distinguish between failure and a local broad cast address. - * - * @param cp IPaddress in ascii represenation (e.g. "127.0.0.1") - * @param addr pointer to which to save the ipaddress in network order - * @return 1 if cp could be converted to addr, 0 on failure - */ -int -spl_ipaddr_aton (const char *cp, spl_ip_addr_t * addr) -{ - u32 val; - u8 base; - char c; - u32 parts[4]; - u32 *pp = parts; - - if (cp == NULL) - { - return 0; - } - - c = *cp; - for (;;) - { - /* - * Get number up to ``.''. - * Values are specified as for C: - * 0x=hex, 0=octal, 1-9=decimal. - */ - if (!isdigit (c)) - { - return (0); - } - - val = 0; - base = 10; - if (c == '0') - { - c = *++cp; - if ((c == 'x') || (c == 'X')) - { - base = 16; - c = *++cp; - } - else - { - base = 8; - } - } - - for (;;) - { - if (isdigit (c)) - { - val = (val * base) + (int) (c - '0'); - c = *++cp; - } - else if ((base == 16) && isxdigit (c)) - { - val = (val << 4) | (int) (c + 10 - (islower (c) ? 'a' : 'A')); - c = *++cp; - } - else - { - break; - } - } - - if (c == '.') - { - /* - * Internet format: - * a.b.c.d - * a.b.c (with c treated as 16 bits) - * a.b (with b treated as 24 bits) - */ - if (pp >= parts + 3) - { - return (0); - } - - *pp++ = val; - c = *++cp; - } - else - { - break; - } - } - - /* - * Check for trailing characters. - */ - if ((c != '\0') && !isspace (c)) - { - return (0); - } - - /* - * Concoct the address according to - * the number of parts specified. - */ - switch (pp - parts + 1) - { - case 0: - return (0); /* initial nondigit */ - - case 1: /* a -- 32 bits */ - break; - - case 2: /* a.b -- 8.24 bits */ - if (val > 0xffffffUL) - { - return (0); - } - - val |= parts[0] << 24; - break; - - case 3: /* a.b.c -- 8.8.16 bits */ - if (val > 0xffff) - { - return (0); - } - - val |= (parts[0] << 24) | (parts[1] << 16); - break; - - case 4: /* a.b.c.d -- 8.8.8.8 bits */ - if (val > 0xff) - { - return (0); - } - - val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8); - break; - default: - NSPOL_LOGERR ("unhandled"); - - return (0); - } - - if (addr) - { - ip4_addr_set_u32 (addr, spl_htonl (val)); - } - - return (1); -} - -/** - * Convert numeric IPaddress into decimal dotted ASCII representation. - * returns ptr to static buffer; not reentrant! - * - * @param addr ipaddress in network order to convert - * @return pointer to a global static (!) buffer that holds the ASCII - * represenation of addr - */ -char * -spl_ipaddr_ntoa (const spl_ip_addr_t * addr) -{ - static char str[16]; - - return spl_ipaddr_ntoa_r (addr, str, 16); -} - -/** - * Same as spl_ipaddr_ntoa, but reentrant since a user-supplied buffer is used. - * - * @param addr ipaddress in network order to convert - * @param buf target buffer where the string is stored - * @param buflen length of buf - * @return either pointer to buf which now holds the ASCII - * representation of addr or NULL if buf was too small - */ -char * -spl_ipaddr_ntoa_r (const spl_ip_addr_t * addr, char *buf, int buflen) -{ - u32 s_addr; - char inv[3]; - char *rp; - u8 *ap; - u8 rem; - u8 n; - u8 i; - int len = 0; - - s_addr = ip4_addr_get_u32 (addr); - - rp = buf; - ap = (u8 *) & s_addr; - for (n = 0; n < 4; n++) - { - i = 0; - do - { - rem = *ap % (u8) 10; - *ap /= (u8) 10; - inv[i++] = '0' + rem; - } - while (*ap); - - while (i--) - { - if (len++ >= buflen) - { - return NULL; - } - - *rp++ = inv[i]; - } - - if (len++ >= buflen) - { - return NULL; - } - - *rp++ = '.'; - ap++; - } - - *--rp = 0; - return buf; -} |