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  • Committer: Bazaar Package Importer
  • Author(s): Eric Dorland
  • Date: 2009-03-29 03:56:10 UTC
  • mto: (8.2.1 squeeze)
  • mto: This revision was merged to the branch mainline in revision 17.
  • Revision ID: james.westby@ubuntu.com-20090329035610-y7v5a3f0852p4da8
Tags: upstream-0.11.7
Import upstream version 0.11.7

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man/sc_lock.3
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.\"     Title: sc_lock
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.\"    Author: 
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.\" Generator: DocBook XSL Stylesheets v1.71.0 <http://docbook.sf.net/>
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.\"      Date: 09/10/2007
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.\"    Manual: OpenSC API reference
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.\"    Source: opensc
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.\"
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.TH "SC_LOCK" "3" "09/10/2007" "opensc" "OpenSC API reference"
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.\" disable hyphenation
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.nh
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.\" disable justification (adjust text to left margin only)
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.ad l
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.SH "NAME"
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sc_lock \- Lock a card for exclusive use
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.SH "SYNOPSIS"
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.PP
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.sp
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.RS 3n
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.nf
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#include <opensc.h>
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int sc_lock(struct sc_card *card);
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.fi
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.RE
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.sp
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.SH "DESCRIPTION"
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.PP
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This function locks the card against modification from other threads or processes. The function may be called several times; a counter will be increased, and the card will be unlocked only when this counter reaches zero.
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.SH "RETURN VALUE"
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.PP
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Returns 0 on success, or a negative value in case of error.