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path: root/src/backend/utils/adt/inet_net_pton.c
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Diffstat (limited to 'src/backend/utils/adt/inet_net_pton.c')
-rw-r--r--src/backend/utils/adt/inet_net_pton.c337
1 files changed, 0 insertions, 337 deletions
diff --git a/src/backend/utils/adt/inet_net_pton.c b/src/backend/utils/adt/inet_net_pton.c
deleted file mode 100644
index 785d333f9d0..00000000000
--- a/src/backend/utils/adt/inet_net_pton.c
+++ /dev/null
@@ -1,337 +0,0 @@
-/*
- * Copyright (c) 1996 by Internet Software Consortium.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
- * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
- * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
- * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
- * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
- * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
- * SOFTWARE.
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static const char rcsid[] = "$Id: inet_net_pton.c,v 1.13 2001/10/25 05:49:44 momjian Exp $";
-#endif
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-
-#include <assert.h>
-#include <ctype.h>
-#include <errno.h>
-
-#include "postgres.h"
-#include "utils/builtins.h"
-
-#ifdef SPRINTF_CHAR
-#define SPRINTF(x) strlen(sprintf/**/x)
-#else
-#define SPRINTF(x) ((size_t)sprintf x)
-#endif
-
-static int inet_net_pton_ipv4(const char *src, u_char *dst);
-static int inet_cidr_pton_ipv4(const char *src, u_char *dst, size_t size);
-
-/*
- * static int
- * inet_net_pton(af, src, dst, size)
- * convert network number from presentation to network format.
- * accepts hex octets, hex strings, decimal octets, and /CIDR.
- * "size" is in bytes and describes "dst".
- * return:
- * number of bits, either imputed classfully or specified with /CIDR,
- * or -1 if some failure occurred (check errno). ENOENT means it was
- * not a valid network specification.
- * author:
- * Paul Vixie (ISC), June 1996
- *
- * Changes:
- * I added the inet_cidr_pton function (also from Paul) and changed
- * the names to reflect their current use.
- *
- */
-int
-inet_net_pton(int af, const char *src, void *dst, size_t size)
-{
- switch (af)
- {
- case AF_INET:
- return size == -1 ?
- inet_net_pton_ipv4(src, dst) :
- inet_cidr_pton_ipv4(src, dst, size);
- default:
- errno = EAFNOSUPPORT;
- return (-1);
- }
-}
-
-/*
- * static int
- * inet_cidr_pton_ipv4(src, dst, size)
- * convert IPv4 network number from presentation to network format.
- * accepts hex octets, hex strings, decimal octets, and /CIDR.
- * "size" is in bytes and describes "dst".
- * return:
- * number of bits, either imputed classfully or specified with /CIDR,
- * or -1 if some failure occurred (check errno). ENOENT means it was
- * not an IPv4 network specification.
- * note:
- * network byte order assumed. this means 192.5.5.240/28 has
- * 0x11110000 in its fourth octet.
- * author:
- * Paul Vixie (ISC), June 1996
- */
-static int
-inet_cidr_pton_ipv4(const char *src, u_char *dst, size_t size)
-{
- static const char
- xdigits[] = "0123456789abcdef",
- digits[] = "0123456789";
- int n,
- ch,
- tmp,
- dirty,
- bits;
- const u_char *odst = dst;
-
- ch = *src++;
- if (ch == '0' && (src[0] == 'x' || src[0] == 'X')
- && isxdigit((unsigned char) src[1]))
- {
- /* Hexadecimal: Eat nybble string. */
- if (size <= 0)
- goto emsgsize;
- dirty = 0;
- tmp = 0;
- src++; /* skip x or X. */
- while ((ch = *src++) != '\0' && isxdigit((unsigned char) ch))
- {
- if (isupper((unsigned char) ch))
- ch = tolower((unsigned char) ch);
- n = strchr(xdigits, ch) - xdigits;
- assert(n >= 0 && n <= 15);
- if (dirty == 0)
- tmp = n;
- else
- tmp = (tmp << 4) | n;
- if (++dirty == 2)
- {
- if (size-- <= 0)
- goto emsgsize;
- *dst++ = (u_char) tmp;
- dirty = 0;
- }
- }
- if (dirty)
- { /* Odd trailing nybble? */
- if (size-- <= 0)
- goto emsgsize;
- *dst++ = (u_char) (tmp << 4);
- }
- }
- else if (isdigit((unsigned char) ch))
- {
- /* Decimal: eat dotted digit string. */
- for (;;)
- {
- tmp = 0;
- do
- {
- n = strchr(digits, ch) - digits;
- assert(n >= 0 && n <= 9);
- tmp *= 10;
- tmp += n;
- if (tmp > 255)
- goto enoent;
- } while ((ch = *src++) != '\0' &&
- isdigit((unsigned char) ch));
- if (size-- <= 0)
- goto emsgsize;
- *dst++ = (u_char) tmp;
- if (ch == '\0' || ch == '/')
- break;
- if (ch != '.')
- goto enoent;
- ch = *src++;
- if (!isdigit((unsigned char) ch))
- goto enoent;
- }
- }
- else
- goto enoent;
-
- bits = -1;
- if (ch == '/' && isdigit((unsigned char) src[0]) && dst > odst)
- {
- /* CIDR width specifier. Nothing can follow it. */
- ch = *src++; /* Skip over the /. */
- bits = 0;
- do
- {
- n = strchr(digits, ch) - digits;
- assert(n >= 0 && n <= 9);
- bits *= 10;
- bits += n;
- } while ((ch = *src++) != '\0' && isdigit((unsigned char) ch));
- if (ch != '\0')
- goto enoent;
- if (bits > 32)
- goto emsgsize;
- }
-
- /* Firey death and destruction unless we prefetched EOS. */
- if (ch != '\0')
- goto enoent;
-
- /* If nothing was written to the destination, we found no address. */
- if (dst == odst)
- goto enoent;
- /* If no CIDR spec was given, infer width from net class. */
- if (bits == -1)
- {
- if (*odst >= 240) /* Class E */
- bits = 32;
- else if (*odst >= 224) /* Class D */
- bits = 4;
- else if (*odst >= 192) /* Class C */
- bits = 24;
- else if (*odst >= 128) /* Class B */
- bits = 16;
- else
-/* Class A */
- bits = 8;
- /* If imputed mask is narrower than specified octets, widen. */
- if (bits >= 8 && bits < ((dst - odst) * 8))
- bits = (dst - odst) * 8;
- }
- /* Extend network to cover the actual mask. */
- while (bits > ((dst - odst) * 8))
- {
- if (size-- <= 0)
- goto emsgsize;
- *dst++ = '\0';
- }
- return (bits);
-
-enoent:
- errno = ENOENT;
- return (-1);
-
-emsgsize:
- errno = EMSGSIZE;
- return (-1);
-}
-
-/*
- * int
- * inet_net_pton(af, src, dst, *bits)
- * convert network address from presentation to network format.
- * accepts inet_pton()'s input for this "af" plus trailing "/CIDR".
- * "dst" is assumed large enough for its "af". "bits" is set to the
- * /CIDR prefix length, which can have defaults (like /32 for IPv4).
- * return:
- * -1 if an error occurred (inspect errno; ENOENT means bad format).
- * 0 if successful conversion occurred.
- * note:
- * 192.5.5.1/28 has a nonzero host part, which means it isn't a network
- * as called for by inet_cidr_pton() but it can be a host address with
- * an included netmask.
- * author:
- * Paul Vixie (ISC), October 1998
- */
-static int
-inet_net_pton_ipv4(const char *src, u_char *dst)
-{
- static const char digits[] = "0123456789";
- const u_char *odst = dst;
- int n,
- ch,
- tmp,
- bits;
- size_t size = 4;
-
- /* Get the mantissa. */
- while (ch = *src++, isdigit((unsigned char) ch))
- {
- tmp = 0;
- do
- {
- n = strchr(digits, ch) - digits;
- assert(n >= 0 && n <= 9);
- tmp *= 10;
- tmp += n;
- if (tmp > 255)
- goto enoent;
- } while ((ch = *src++) != '\0' && isdigit((unsigned char) ch));
- if (size-- == 0)
- goto emsgsize;
- *dst++ = (u_char) tmp;
- if (ch == '\0' || ch == '/')
- break;
- if (ch != '.')
- goto enoent;
- }
-
- /* Get the prefix length if any. */
- bits = -1;
- if (ch == '/' && isdigit((unsigned char) src[0]) && dst > odst)
- {
- /* CIDR width specifier. Nothing can follow it. */
- ch = *src++; /* Skip over the /. */
- bits = 0;
- do
- {
- n = strchr(digits, ch) - digits;
- assert(n >= 0 && n <= 9);
- bits *= 10;
- bits += n;
- } while ((ch = *src++) != '\0' && isdigit((unsigned char) ch));
- if (ch != '\0')
- goto enoent;
- if (bits > 32)
- goto emsgsize;
- }
-
- /* Firey death and destruction unless we prefetched EOS. */
- if (ch != '\0')
- goto enoent;
-
- /* Prefix length can default to /32 only if all four octets spec'd. */
- if (bits == -1)
- {
- if (dst - odst == 4)
- bits = 32;
- else
- goto enoent;
- }
-
- /* If nothing was written to the destination, we found no address. */
- if (dst == odst)
- goto enoent;
-
- /* If prefix length overspecifies mantissa, life is bad. */
- if ((bits / 8) > (dst - odst))
- goto enoent;
-
- /* Extend address to four octets. */
- while (size-- > 0)
- *dst++ = 0;
-
- return bits;
-
-enoent:
- errno = ENOENT;
- return (-1);
-
-emsgsize:
- errno = EMSGSIZE;
- return (-1);
-}
generated by cgit v1.2.3 (git 2.46.0) at 2025-09-05 00:23:07 +0000