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version 1.60, 2007/05/25 16:18:53
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version 1.61, 2007/06/26 20:26:13
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| #include "XmlWriter.h" | #include "XmlWriter.h" |
| #include "XmlReader.h" | #include "XmlReader.h" |
| #include "ArrayInternal.h" | #include "ArrayInternal.h" |
| |
#include "HostLocator.h" |
| | |
| PEGASUS_NAMESPACE_BEGIN | PEGASUS_NAMESPACE_BEGIN |
| | |
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| | |
| static Boolean isValidHostname(const String& hostname) | static Boolean isValidHostname(const String& hostname) |
| { | { |
| //------------------------------------------------------------------ |
HostLocator addr(hostname); |
| // Validate the hostname. The hostname value may or may not be a |
|
| // fully-qualified domain name (e.g., xyz.company.com) or may be an |
|
| // IP address. A port number may follow the hostname. |
|
| // Hostnames must match one of the following regular expressions: |
|
| // ^([A-Za-z0-9][A-Za-z0-9-]*)(\.[A-Za-z][A-Za-z0-9-]*)*(:[0-9]*)?$ |
|
| // ^([0-9]*\.[0-9]*\.[0-9]*\.[0-9]*)(:[0-9]*)?$ |
|
| // Note for Bug#1462. Be careful here, from RFC 1123: |
|
| // - The syntax of a legal Internet host name was specified in |
|
| // RFC-952 [DNS:4]. One aspect of host name syntax is hereby |
|
| // changed: the restriction on the first character is relaxed to |
|
| // allow either a letter or a digit. |
|
| // - If a dotted-decimal number can be entered without identifying |
|
| // delimiters, then a full syntactic check must be made, because |
|
| // a segment of a host domain name is now allowed to begin with a |
|
| // digit and could legally be entirely numeric (see Section 6.1.2.4). |
|
| // However, a valid host name can never have the dotted-decimal form |
|
| // #.#.#.#, since at least the highest-level component label will be |
|
| // alphabetic. |
|
| // The algorithm below has been updated accordingly. |
|
| //------------------------------------------------------------------ |
|
| | |
| Uint32 i = 0; |
return addr.isValid(); |
| |
|
| Boolean isValid = false; |
|
| |
|
| if (isascii(hostname[0]) && isdigit(hostname[0])) |
|
| { |
|
| //-------------------------------------------------------------- |
|
| // Attempt to validate an IP address, but keep in mind that it |
|
| // might be a host name, since the leading character can now be |
|
| // a digit. |
|
| //-------------------------------------------------------------- |
|
| isValid = true; |
|
| |
|
| for (Uint32 octet=1; octet<=4; octet++) |
|
| { |
|
| Uint32 octetValue = 0, j = 0; |
|
| |
|
| //---------------------------------------------------------- |
|
| // If a non-digit is encountered in the input parameter, |
|
| // then break from here and attempt to validate as host name. |
|
| //---------------------------------------------------------- |
|
| if (!(isascii(hostname[i]) && isdigit(hostname[i]))) |
|
| { |
|
| isValid = false; |
|
| break; |
|
| } |
|
| |
|
| // skip over digits |
|
| while (isascii(hostname[i]) && isdigit(hostname[i])) |
|
| { |
|
| if (j == 3) |
|
| { |
|
| isValid = false; |
|
| break; |
|
| } |
|
| octetValue = octetValue*10 + (hostname[i] - '0'); |
|
| i++; |
|
| j++; |
|
| } |
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| |
|
| if (octetValue > 255) |
|
| { |
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| isValid = false; |
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| break; |
|
| } |
|
| |
|
| // Check for invalid character in IP address |
|
| if ((octet != 4) && (hostname[i++] != '.')) |
|
| { |
|
| isValid = false; |
|
| break; |
|
| } |
|
| |
|
| // Check for the case where it's a valid host name that happens |
|
| // to have 4 (or more) leading all-numeric host segments. |
|
| if ((octet == 4) && (hostname[i] != ':') && |
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| hostname[i] != char(0)) |
|
| { |
|
| isValid = false; |
|
| break; |
|
| } |
|
| } |
|
| } |
|
| if (!isValid) // if it is not a valid IP address |
|
| { |
|
| i = 0; // reset index for host name check |
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| |
|
| // Validate a host name |
|
| isValid = true; |
|
| |
|
| Boolean expectHostSegment = true; |
|
| Boolean hostSegmentIsNumeric; |
|
| |
|
| while (expectHostSegment == true) |
|
| { |
|
| expectHostSegment = false; |
|
| hostSegmentIsNumeric = true; // assume all-numeric host segment |
|
| |
|
| if (!(isascii(hostname[i]) && |
|
| (isalnum(hostname[i]) || (hostname[i] == '_')))) |
|
| { |
|
| return false; |
|
| } |
|
| |
|
| while (isascii(hostname[i]) && |
|
| (isalnum(hostname[i]) || (hostname[i] == '-') || |
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| (hostname[i] == '_'))) |
|
| { |
|
| // If a non-digit is encountered, set "all-numeric" |
|
| // flag to false |
|
| if (isalpha(hostname[i]) || (hostname[i] == '-') || |
|
| (hostname[i] == '_')) |
|
| { |
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| hostSegmentIsNumeric = false; |
|
| } |
|
| i++; |
|
| } |
|
| |
|
| if (hostname[i] == '.') |
|
| { |
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| i++; |
|
| expectHostSegment = true; |
|
| } |
|
| } |
|
| // If the last Host Segment is all numeric, then return false. |
|
| // RFC 1123 says "highest-level component label will be alphabetic". |
|
| if (hostSegmentIsNumeric) |
|
| { |
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| return false; |
|
| } |
|
| } |
|
| |
|
| if (!isValid) // if not a valid IP address or host name |
|
| { |
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| return false; |
|
| } |
|
| |
|
| // Check for a port number: |
|
| |
|
| if (hostname[i] == ':') |
|
| { |
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| i++; |
|
| // First check that there is at least one digit specified for the |
|
| // port number if the ':' delimiter is present. Note that there is |
|
| // a question as to whether ':' can exist without the port number. |
|
| // ATTN: See bug 6424. |
|
| if (!(isascii(hostname[i]) && isdigit(hostname[i]))) |
|
| { |
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| return false; |
|
| } |
|
| |
|
| Uint32 port = (hostname[i] - '0'); |
|
| i++; |
|
| |
|
| // Check that remaining characters in port number are all digits, |
|
| // and that the port number can be represented by 16-bits. |
|
| while (isascii(hostname[i]) && isdigit(hostname[i])) |
|
| { |
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| port = port*10 + (hostname[i] - '0'); |
|
| if(port > 65535) |
|
| { |
|
| return false; |
|
| } |
|
| i++; |
|
| } |
|
| } |
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| |
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| return (hostname[i] == char(0)); |
|
| } | } |
| | |
| // | // |
Return to
CIMObjectPath.cpp
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