Penny Post Command Line Options

Generating Stamps

Use the -m option to generate stamps.

HashCash
ppost -m hashcash <version> <value> <resource> [-d <date-YYMMDD>] [-e <extensions>] [-o <outputfile>]

<version> - Can be 0 or 1 (1 is recommended)
<value> - A number specifying the desired StampCost
<resource> - The recepients email address

For Example:

MBound
ppost -m mbound <version> <value> <pathlen> <resource> [-d <date-YYMMDD>] [-e <extension>] [-o <outputfile>]

<version> - Presently only version 0 is supported
<value> - A number specifying the desired StampCost
<pathlen> - A number specifying the desired depth for MBound
<resource> - The recepients email address

For Example:

• Please note: MBound is provided with PennyPost solely for educational purposes to be used for learning about memory bound∞ functions. No commercial use of this algorithm is implied or suggested.

Verifying Stamps

Use the -c option to verify stamps.

If stamp verification fails, the program will return a non-zero exit code. This will hopefully allow easy integration with scripts and other programs like TMDA∞.

HashCash
ppost -c hashcash <min-value> <token> [-x <date-diff-days>] [-o <outputfile>]

<min-value> - A number specifying the minimum StampCost required for a stamp to be accepted
<token> - The HashCash token to test for validity

For Example:

MBound
ppost -c mbound <min-value> <min-path> <max-path> <token> [-x <date-diff-days>] [-o <outputfile>]

<min-value> - A number specifying the minimum StampCost required for a stamp to be accepted
<min-path> - A number specifying the minimum depth required for the MBound stamp
<max-path> - A number specifying the maximum depth for which verification will be attempted for MBound
<token> - The MBound token to test for validity

For Example:

Extra Options

-t - Suppress status codes in output. This option only has effect when generating stamps.

-o <outputfile> - The output will be written to the specified output file instead of the screen

For Example (Redirect output to c:\result.txt):

-d <date-YYMMDD> - The stamp will be generated for the specified date

For Example (Generate a stamp for 25 Jan 2007):

-e <extension> - Specify addditional data to include in the stamp, formatted as name1=value1;name2=value2 ...

For Example:

-x <date-diff-days> - The number of days between today and the stamp generation date between which the stamp is considered valid

For Example:

-v - Display PennyPost version information

For Example:

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CategoryCommandLineDocs