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Returns the block length of the digest.

This method is overridden by each implementation subclass.

Similar to decode with the difference that decode expects one distinct value represented in der. decode_all on the contrary decodes a sequence of sequential BER/DER values lined up in der and returns them as an array.

Example

ders = File.binread('asn1data_seq')
asn1_ary = OpenSSL::ASN1.decode_all(ders)

Synonym for CGI::escapeElement(str)

Generate an File Upload Input element as a string.

The attributes of the element can be specified as three arguments, name, size, and maxlength. maxlength is the maximum length of the file’s name, not of the file’s contents.

Alternatively, the attributes can be specified as a hash.

See multipart_form() for forms that include file uploads.

file_field("name")
  # <INPUT TYPE="file" NAME="name" SIZE="20">

file_field("name", 40)
  # <INPUT TYPE="file" NAME="name" SIZE="40">

file_field("name", 40, 100)
  # <INPUT TYPE="file" NAME="name" SIZE="40" MAXLENGTH="100">

file_field("NAME" => "name", "SIZE" => 40)
  # <INPUT TYPE="file" NAME="name" SIZE="40">

The length of the range represented in Content-Range: header.

A convenience method which is same as follows:

text ','
breakable

Temporarily turn off warnings. Intended for tests only.

Temporarily turn off warnings. Intended for tests only.

Remove any non-printable characters and make the text suitable for printing.

Displays an error statement to the error output location. Asks a question if given.

Displays a warning statement to the warning output location. Asks a question if given.

Invokes system, but silences all output.

Change the current process’s real and effective user ID to that specified by user. Returns the new user ID. Not available on all platforms.

[Process.uid, Process.euid]          #=> [0, 0]
Process::UID.change_privilege(31)    #=> 31
[Process.uid, Process.euid]          #=> [31, 31]

Set the effective user ID, and if possible, the saved user ID of the process to the given user. Returns the new effective user ID. Not available on all platforms.

[Process.uid, Process.euid]          #=> [0, 0]
Process::UID.grant_privilege(31)     #=> 31
[Process.uid, Process.euid]          #=> [0, 31]

Returns true if the real and effective user IDs of a process may be exchanged on the current platform.

Returns true if the current platform has saved user ID functionality.

Change the current process’s real and effective group ID to that specified by group. Returns the new group ID. Not available on all platforms.

[Process.gid, Process.egid]          #=> [0, 0]
Process::GID.change_privilege(33)    #=> 33
[Process.gid, Process.egid]          #=> [33, 33]

Set the effective group ID, and if possible, the saved group ID of the process to the given group. Returns the new effective group ID. Not available on all platforms.

[Process.gid, Process.egid]          #=> [0, 0]
Process::GID.grant_privilege(31)     #=> 33
[Process.gid, Process.egid]          #=> [0, 33]

Returns true if the real and effective group IDs of a process may be exchanged on the current platform.

Returns true if the current platform has saved group ID functionality.