386 lines
36 KiB
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386 lines
36 KiB
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<title>LCOV - cov-bash.info - builtins/trap.def</title>
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<td width="10%" class="headerItem">Current view:</td>
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<td width="35%" class="headerValue"><a href="../index.html">top level</a> - <a href="index.html">builtins</a> - trap.def<span style="font-size: 80%;"> (source / <a href="trap.def.func-sort-c.html">functions</a>)</span></td>
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<td width="10%" class="headerCovTableHead">Total</td>
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<td class="headerItem">Test:</td>
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<td class="headerValue">cov-bash.info</td>
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<td></td>
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<td class="headerItem">Lines:</td>
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<td class="headerCovTableEntry">55</td>
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<td class="headerCovTableEntry">99</td>
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<td class="headerCovTableEntryLo">55.6 %</td>
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<td class="headerItem">Date:</td>
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<td class="headerValue">2020-10-29 14:49:28</td>
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<td></td>
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<td class="headerItem">Functions:</td>
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<td class="headerCovTableEntry">3</td>
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<td class="headerCovTableEntry">3</td>
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<td class="headerCovTableEntryHi">100.0 %</td>
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</tr>
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<tr><td><img src="../glass.png" width=3 height=3 alt=""></td></tr>
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<pre class="sourceHeading"> Line data Source code</pre>
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<pre class="source">
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<a name="1"><span class="lineNum"> 1 </span> : This file is trap.def, from which is created trap.c.</a>
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<a name="2"><span class="lineNum"> 2 </span> : It implements the builtin "trap" in Bash.</a>
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<a name="3"><span class="lineNum"> 3 </span> : </a>
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<a name="4"><span class="lineNum"> 4 </span> : Copyright (C) 1987-2015 Free Software Foundation, Inc.</a>
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<a name="5"><span class="lineNum"> 5 </span> : </a>
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<a name="6"><span class="lineNum"> 6 </span> : This file is part of GNU Bash, the Bourne Again SHell.</a>
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<a name="7"><span class="lineNum"> 7 </span> : </a>
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<a name="8"><span class="lineNum"> 8 </span> : Bash is free software: you can redistribute it and/or modify</a>
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<a name="9"><span class="lineNum"> 9 </span> : it under the terms of the GNU General Public License as published by</a>
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<a name="10"><span class="lineNum"> 10 </span> : the Free Software Foundation, either version 3 of the License, or</a>
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<a name="11"><span class="lineNum"> 11 </span> : (at your option) any later version.</a>
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<a name="12"><span class="lineNum"> 12 </span> : </a>
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<a name="13"><span class="lineNum"> 13 </span> : Bash is distributed in the hope that it will be useful,</a>
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<a name="14"><span class="lineNum"> 14 </span> : but WITHOUT ANY WARRANTY; without even the implied warranty of</a>
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<a name="15"><span class="lineNum"> 15 </span> : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</a>
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<a name="16"><span class="lineNum"> 16 </span> : GNU General Public License for more details.</a>
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<a name="17"><span class="lineNum"> 17 </span> : </a>
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<a name="18"><span class="lineNum"> 18 </span> : You should have received a copy of the GNU General Public License</a>
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<a name="19"><span class="lineNum"> 19 </span> : along with Bash. If not, see <http://www.gnu.org/licenses/>.</a>
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<a name="20"><span class="lineNum"> 20 </span> : </a>
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<a name="21"><span class="lineNum"> 21 </span> : $PRODUCES trap.c</a>
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<a name="22"><span class="lineNum"> 22 </span> : </a>
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<a name="23"><span class="lineNum"> 23 </span> : $BUILTIN trap</a>
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<a name="24"><span class="lineNum"> 24 </span> : $FUNCTION trap_builtin</a>
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<a name="25"><span class="lineNum"> 25 </span> : $SHORT_DOC trap [-lp] [[arg] signal_spec ...]</a>
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<a name="26"><span class="lineNum"> 26 </span> : Trap signals and other events.</a>
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<a name="27"><span class="lineNum"> 27 </span> : </a>
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<a name="28"><span class="lineNum"> 28 </span> : Defines and activates handlers to be run when the shell receives signals</a>
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<a name="29"><span class="lineNum"> 29 </span> : or other conditions.</a>
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<a name="30"><span class="lineNum"> 30 </span> : </a>
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<a name="31"><span class="lineNum"> 31 </span> : ARG is a command to be read and executed when the shell receives the</a>
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<a name="32"><span class="lineNum"> 32 </span> : signal(s) SIGNAL_SPEC. If ARG is absent (and a single SIGNAL_SPEC</a>
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<a name="33"><span class="lineNum"> 33 </span> : is supplied) or `-', each specified signal is reset to its original</a>
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<a name="34"><span class="lineNum"> 34 </span> : value. If ARG is the null string each SIGNAL_SPEC is ignored by the</a>
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<a name="35"><span class="lineNum"> 35 </span> : shell and by the commands it invokes.</a>
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<a name="36"><span class="lineNum"> 36 </span> : </a>
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<a name="37"><span class="lineNum"> 37 </span> : If a SIGNAL_SPEC is EXIT (0) ARG is executed on exit from the shell. If</a>
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<a name="38"><span class="lineNum"> 38 </span> : a SIGNAL_SPEC is DEBUG, ARG is executed before every simple command. If</a>
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<a name="39"><span class="lineNum"> 39 </span> : a SIGNAL_SPEC is RETURN, ARG is executed each time a shell function or a</a>
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<a name="40"><span class="lineNum"> 40 </span> : script run by the . or source builtins finishes executing. A SIGNAL_SPEC</a>
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<a name="41"><span class="lineNum"> 41 </span> : of ERR means to execute ARG each time a command's failure would cause the</a>
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<a name="42"><span class="lineNum"> 42 </span> : shell to exit when the -e option is enabled.</a>
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<a name="43"><span class="lineNum"> 43 </span> : </a>
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<a name="44"><span class="lineNum"> 44 </span> : If no arguments are supplied, trap prints the list of commands associated</a>
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<a name="45"><span class="lineNum"> 45 </span> : with each signal.</a>
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<a name="46"><span class="lineNum"> 46 </span> : </a>
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<a name="47"><span class="lineNum"> 47 </span> : Options:</a>
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<a name="48"><span class="lineNum"> 48 </span> : -l print a list of signal names and their corresponding numbers</a>
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<a name="49"><span class="lineNum"> 49 </span> : -p display the trap commands associated with each SIGNAL_SPEC</a>
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<a name="50"><span class="lineNum"> 50 </span> : </a>
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<a name="51"><span class="lineNum"> 51 </span> : Each SIGNAL_SPEC is either a signal name in <signal.h> or a signal number.</a>
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<a name="52"><span class="lineNum"> 52 </span> : Signal names are case insensitive and the SIG prefix is optional. A</a>
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<a name="53"><span class="lineNum"> 53 </span> : signal may be sent to the shell with "kill -signal $$".</a>
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<a name="54"><span class="lineNum"> 54 </span> : </a>
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<a name="55"><span class="lineNum"> 55 </span> : Exit Status:</a>
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<a name="56"><span class="lineNum"> 56 </span> : Returns success unless a SIGSPEC is invalid or an invalid option is given.</a>
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<a name="57"><span class="lineNum"> 57 </span> : $END</a>
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<a name="58"><span class="lineNum"> 58 </span> : </a>
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<a name="59"><span class="lineNum"> 59 </span> : #include <config.h></a>
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<a name="60"><span class="lineNum"> 60 </span> : </a>
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<a name="61"><span class="lineNum"> 61 </span> : #if defined (HAVE_UNISTD_H)</a>
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<a name="62"><span class="lineNum"> 62 </span> : # ifdef _MINIX</a>
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<a name="63"><span class="lineNum"> 63 </span> : # include <sys/types.h></a>
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<a name="64"><span class="lineNum"> 64 </span> : # endif</a>
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<a name="65"><span class="lineNum"> 65 </span> : # include <unistd.h></a>
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<a name="66"><span class="lineNum"> 66 </span> : #endif</a>
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<a name="67"><span class="lineNum"> 67 </span> : </a>
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<a name="68"><span class="lineNum"> 68 </span> : #include "../bashtypes.h"</a>
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<a name="69"><span class="lineNum"> 69 </span> : #include <signal.h></a>
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<a name="70"><span class="lineNum"> 70 </span> : #include <stdio.h></a>
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<a name="71"><span class="lineNum"> 71 </span> : #include "../bashansi.h"</a>
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<a name="72"><span class="lineNum"> 72 </span> : </a>
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<a name="73"><span class="lineNum"> 73 </span> : #include "../shell.h"</a>
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<a name="74"><span class="lineNum"> 74 </span> : #include "../trap.h"</a>
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<a name="75"><span class="lineNum"> 75 </span> : #include "common.h"</a>
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<a name="76"><span class="lineNum"> 76 </span> : #include "bashgetopt.h"</a>
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<a name="77"><span class="lineNum"> 77 </span> : </a>
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<a name="78"><span class="lineNum"> 78 </span> : static void showtrap __P((int));</a>
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<a name="79"><span class="lineNum"> 79 </span> : static int display_traps __P((WORD_LIST *));</a>
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<a name="80"><span class="lineNum"> 80 </span> : </a>
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<a name="81"><span class="lineNum"> 81 </span> : /* The trap command:</a>
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<a name="82"><span class="lineNum"> 82 </span> : </a>
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<a name="83"><span class="lineNum"> 83 </span> : trap <arg> <signal ...></a>
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<a name="84"><span class="lineNum"> 84 </span> : trap <signal ...></a>
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<a name="85"><span class="lineNum"> 85 </span> : trap -l</a>
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<a name="86"><span class="lineNum"> 86 </span> : trap -p [sigspec ...]</a>
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<a name="87"><span class="lineNum"> 87 </span> : trap [--]</a>
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<a name="88"><span class="lineNum"> 88 </span> : </a>
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<a name="89"><span class="lineNum"> 89 </span> : Set things up so that ARG is executed when SIGNAL(s) N is received.</a>
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<a name="90"><span class="lineNum"> 90 </span> : If ARG is the empty string, then ignore the SIGNAL(s). If there is</a>
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<a name="91"><span class="lineNum"> 91 </span> : no ARG, then set the trap for SIGNAL(s) to its original value. Just</a>
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<a name="92"><span class="lineNum"> 92 </span> : plain "trap" means to print out the list of commands associated with</a>
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<a name="93"><span class="lineNum"> 93 </span> : each signal number. Single arg of "-l" means list the signal names. */</a>
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<a name="94"><span class="lineNum"> 94 </span> : </a>
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<a name="95"><span class="lineNum"> 95 </span> : /* Possible operations to perform on the list of signals.*/</a>
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<a name="96"><span class="lineNum"> 96 </span> : #define SET 0 /* Set this signal to first_arg. */</a>
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<a name="97"><span class="lineNum"> 97 </span> : #define REVERT 1 /* Revert to this signals original value. */</a>
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<a name="98"><span class="lineNum"> 98 </span> : #define IGNORE 2 /* Ignore this signal. */</a>
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<a name="99"><span class="lineNum"> 99 </span> : </a>
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<a name="100"><span class="lineNum"> 100 </span> : extern int posixly_correct, subshell_environment;</a>
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<a name="101"><span class="lineNum"> 101 </span> : extern int sourcelevel, running_trap;</a>
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<a name="102"><span class="lineNum"> 102 </span> : </a>
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<a name="103"><span class="lineNum"> 103 </span> : int</a>
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<a name="104"><span class="lineNum"> 104 </span><span class="lineCov"> 140 : trap_builtin (list)</span></a>
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<a name="105"><span class="lineNum"> 105 </span> : WORD_LIST *list;</a>
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<a name="106"><span class="lineNum"> 106 </span> : {</a>
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<a name="107"><span class="lineNum"> 107 </span><span class="lineCov"> 140 : int list_signal_names, display, result, opt;</span></a>
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<a name="108"><span class="lineNum"> 108 </span> : </a>
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<a name="109"><span class="lineNum"> 109 </span><span class="lineCov"> 140 : list_signal_names = display = 0;</span></a>
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<a name="110"><span class="lineNum"> 110 </span><span class="lineCov"> 140 : result = EXECUTION_SUCCESS;</span></a>
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<a name="111"><span class="lineNum"> 111 </span> : </a>
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<a name="112"><span class="lineNum"> 112 </span><span class="lineCov"> 140 : reset_internal_getopt ();</span></a>
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<a name="113"><span class="lineNum"> 113 </span><span class="lineCov"> 140 : while ((opt = internal_getopt (list, "lp")) != -1)</span></a>
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<a name="114"><span class="lineNum"> 114 </span> : {</a>
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<a name="115"><span class="lineNum"> 115 </span><span class="lineNoCov"> 0 : switch (opt)</span></a>
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<a name="116"><span class="lineNum"> 116 </span> : {</a>
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<a name="117"><span class="lineNum"> 117 </span><span class="lineNoCov"> 0 : case 'l':</span></a>
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<a name="118"><span class="lineNum"> 118 </span><span class="lineNoCov"> 0 : list_signal_names++;</span></a>
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<a name="119"><span class="lineNum"> 119 </span><span class="lineNoCov"> 0 : break;</span></a>
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<a name="120"><span class="lineNum"> 120 </span><span class="lineNoCov"> 0 : case 'p':</span></a>
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<a name="121"><span class="lineNum"> 121 </span><span class="lineNoCov"> 0 : display++;</span></a>
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<a name="122"><span class="lineNum"> 122 </span><span class="lineNoCov"> 0 : break;</span></a>
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<a name="123"><span class="lineNum"> 123 </span><span class="lineNoCov"> 0 : CASE_HELPOPT;</span></a>
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<a name="124"><span class="lineNum"> 124 </span><span class="lineNoCov"> 0 : default:</span></a>
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<a name="125"><span class="lineNum"> 125 </span><span class="lineNoCov"> 0 : builtin_usage ();</span></a>
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<a name="126"><span class="lineNum"> 126 </span><span class="lineNoCov"> 0 : return (EX_USAGE);</span></a>
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<a name="127"><span class="lineNum"> 127 </span> : }</a>
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<a name="128"><span class="lineNum"> 128 </span> : }</a>
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<a name="129"><span class="lineNum"> 129 </span><span class="lineCov"> 140 : list = loptend;</span></a>
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<a name="130"><span class="lineNum"> 130 </span> : </a>
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<a name="131"><span class="lineNum"> 131 </span><span class="lineCov"> 140 : opt = DSIG_NOCASE|DSIG_SIGPREFIX; /* flags for decode_signal */</span></a>
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<a name="132"><span class="lineNum"> 132 </span> : </a>
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<a name="133"><span class="lineNum"> 133 </span><span class="lineCov"> 140 : if (list_signal_names)</span></a>
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<a name="134"><span class="lineNum"> 134 </span><span class="lineNoCov"> 0 : return (sh_chkwrite (display_signal_list ((WORD_LIST *)NULL, 1)));</span></a>
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<a name="135"><span class="lineNum"> 135 </span><span class="lineCov"> 140 : else if (display || list == 0)</span></a>
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<a name="136"><span class="lineNum"> 136 </span> : {</a>
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<a name="137"><span class="lineNum"> 137 </span><span class="lineCov"> 88 : initialize_terminating_signals ();</span></a>
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<a name="138"><span class="lineNum"> 138 </span><span class="lineCov"> 88 : get_all_original_signals ();</span></a>
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<a name="139"><span class="lineNum"> 139 </span><span class="lineCov"> 88 : return (sh_chkwrite (display_traps (list)));</span></a>
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<a name="140"><span class="lineNum"> 140 </span> : }</a>
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<a name="141"><span class="lineNum"> 141 </span> : else</a>
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<a name="142"><span class="lineNum"> 142 </span> : {</a>
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<a name="143"><span class="lineNum"> 143 </span><span class="lineCov"> 52 : char *first_arg;</span></a>
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<a name="144"><span class="lineNum"> 144 </span><span class="lineCov"> 52 : int operation, sig, first_signal;</span></a>
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<a name="145"><span class="lineNum"> 145 </span> : </a>
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<a name="146"><span class="lineNum"> 146 </span><span class="lineCov"> 52 : operation = SET;</span></a>
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<a name="147"><span class="lineNum"> 147 </span><span class="lineCov"> 52 : first_arg = list->word->word;</span></a>
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<a name="148"><span class="lineNum"> 148 </span><span class="lineCov"> 52 : first_signal = first_arg && *first_arg && all_digits (first_arg) && signal_object_p (first_arg, opt);</span></a>
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<a name="149"><span class="lineNum"> 149 </span> : </a>
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<a name="150"><span class="lineNum"> 150 </span> : /* Backwards compatibility. XXX - question about whether or not we</a>
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<a name="151"><span class="lineNum"> 151 </span> : should throw an error if an all-digit argument doesn't correspond</a>
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<a name="152"><span class="lineNum"> 152 </span> : to a valid signal number (e.g., if it's `50' on a system with only</a>
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<a name="153"><span class="lineNum"> 153 </span> : 32 signals). */</a>
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<a name="154"><span class="lineNum"> 154 </span><span class="lineCov"> 52 : if (first_signal)</span></a>
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<a name="155"><span class="lineNum"> 155 </span> : operation = REVERT;</a>
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<a name="156"><span class="lineNum"> 156 </span> : /* When in posix mode, the historical behavior of looking for a</a>
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<a name="157"><span class="lineNum"> 157 </span> : missing first argument is disabled. To revert to the original</a>
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<a name="158"><span class="lineNum"> 158 </span> : signal handling disposition, use `-' as the first argument. */</a>
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<a name="159"><span class="lineNum"> 159 </span><span class="lineCov"> 52 : else if (posixly_correct == 0 && first_arg && *first_arg &&</span></a>
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<a name="160"><span class="lineNum"> 160 </span><span class="lineCov"> 52 : (*first_arg != '-' || first_arg[1]) &&</span></a>
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<a name="161"><span class="lineNum"> 161 </span><span class="lineCov"> 61 : signal_object_p (first_arg, opt) && list->next == 0)</span></a>
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<a name="162"><span class="lineNum"> 162 </span> : operation = REVERT;</a>
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<a name="163"><span class="lineNum"> 163 </span> : else</a>
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<a name="164"><span class="lineNum"> 164 </span> : {</a>
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<a name="165"><span class="lineNum"> 165 </span><span class="lineCov"> 52 : list = list->next;</span></a>
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<a name="166"><span class="lineNum"> 166 </span><span class="lineCov"> 52 : if (list == 0)</span></a>
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<a name="167"><span class="lineNum"> 167 </span> : {</a>
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<a name="168"><span class="lineNum"> 168 </span><span class="lineCov"> 13 : builtin_usage ();</span></a>
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<a name="169"><span class="lineNum"> 169 </span><span class="lineCov"> 13 : return (EX_USAGE);</span></a>
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<a name="170"><span class="lineNum"> 170 </span> : }</a>
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<a name="171"><span class="lineNum"> 171 </span><span class="lineCov"> 39 : else if (*first_arg == '\0')</span></a>
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<a name="172"><span class="lineNum"> 172 </span> : operation = IGNORE;</a>
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<a name="173"><span class="lineNum"> 173 </span><span class="lineCov"> 39 : else if (first_arg[0] == '-' && !first_arg[1])</span></a>
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<a name="174"><span class="lineNum"> 174 </span><span class="lineNoCov"> 0 : operation = REVERT;</span></a>
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<a name="175"><span class="lineNum"> 175 </span> : }</a>
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<a name="176"><span class="lineNum"> 176 </span> : </a>
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<a name="177"><span class="lineNum"> 177 </span> : /* If we're in a command substitution, we haven't freed the trap strings</a>
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<a name="178"><span class="lineNum"> 178 </span> : (though we reset the signal handlers). If we're setting a trap to</a>
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<a name="179"><span class="lineNum"> 179 </span> : handle a signal here, free the rest of the trap strings since they</a>
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<a name="180"><span class="lineNum"> 180 </span> : don't apply any more. */</a>
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<a name="181"><span class="lineNum"> 181 </span><span class="lineCov"> 39 : if (subshell_environment & SUBSHELL_RESETTRAP)</span></a>
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<a name="182"><span class="lineNum"> 182 </span> : {</a>
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<a name="183"><span class="lineNum"> 183 </span><span class="lineNoCov"> 0 : free_trap_strings ();</span></a>
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<a name="184"><span class="lineNum"> 184 </span><span class="lineNoCov"> 0 : subshell_environment &= ~SUBSHELL_RESETTRAP;</span></a>
|
|
<a name="185"><span class="lineNum"> 185 </span> : }</a>
|
|
<a name="186"><span class="lineNum"> 186 </span> : </a>
|
|
<a name="187"><span class="lineNum"> 187 </span><span class="lineCov"> 123 : while (list)</span></a>
|
|
<a name="188"><span class="lineNum"> 188 </span> : {</a>
|
|
<a name="189"><span class="lineNum"> 189 </span><span class="lineCov"> 84 : sig = decode_signal (list->word->word, opt);</span></a>
|
|
<a name="190"><span class="lineNum"> 190 </span> : </a>
|
|
<a name="191"><span class="lineNum"> 191 </span><span class="lineCov"> 84 : if (sig == NO_SIG)</span></a>
|
|
<a name="192"><span class="lineNum"> 192 </span> : {</a>
|
|
<a name="193"><span class="lineNum"> 193 </span><span class="lineCov"> 75 : sh_invalidsig (list->word->word);</span></a>
|
|
<a name="194"><span class="lineNum"> 194 </span><span class="lineCov"> 75 : result = EXECUTION_FAILURE;</span></a>
|
|
<a name="195"><span class="lineNum"> 195 </span> : }</a>
|
|
<a name="196"><span class="lineNum"> 196 </span> : else</a>
|
|
<a name="197"><span class="lineNum"> 197 </span> : {</a>
|
|
<a name="198"><span class="lineNum"> 198 </span><span class="lineCov"> 9 : switch (operation)</span></a>
|
|
<a name="199"><span class="lineNum"> 199 </span> : {</a>
|
|
<a name="200"><span class="lineNum"> 200 </span><span class="lineCov"> 9 : case SET:</span></a>
|
|
<a name="201"><span class="lineNum"> 201 </span><span class="lineCov"> 9 : set_signal (sig, first_arg);</span></a>
|
|
<a name="202"><span class="lineNum"> 202 </span><span class="lineCov"> 9 : break;</span></a>
|
|
<a name="203"><span class="lineNum"> 203 </span> : </a>
|
|
<a name="204"><span class="lineNum"> 204 </span><span class="lineNoCov"> 0 : case REVERT:</span></a>
|
|
<a name="205"><span class="lineNum"> 205 </span><span class="lineNoCov"> 0 : restore_default_signal (sig);</span></a>
|
|
<a name="206"><span class="lineNum"> 206 </span> : </a>
|
|
<a name="207"><span class="lineNum"> 207 </span> : /* Signals that the shell treats specially need special</a>
|
|
<a name="208"><span class="lineNum"> 208 </span> : handling. */</a>
|
|
<a name="209"><span class="lineNum"> 209 </span><span class="lineNoCov"> 0 : switch (sig)</span></a>
|
|
<a name="210"><span class="lineNum"> 210 </span> : {</a>
|
|
<a name="211"><span class="lineNum"> 211 </span><span class="lineNoCov"> 0 : case SIGINT:</span></a>
|
|
<a name="212"><span class="lineNum"> 212 </span> : /* XXX - should we do this if original disposition</a>
|
|
<a name="213"><span class="lineNum"> 213 </span> : was SIG_IGN? */</a>
|
|
<a name="214"><span class="lineNum"> 214 </span><span class="lineNoCov"> 0 : if (interactive)</span></a>
|
|
<a name="215"><span class="lineNum"> 215 </span><span class="lineNoCov"> 0 : set_signal_handler (SIGINT, sigint_sighandler);</span></a>
|
|
<a name="216"><span class="lineNum"> 216 </span> : /* special cases for interactive == 0 */</a>
|
|
<a name="217"><span class="lineNum"> 217 </span><span class="lineNoCov"> 0 : else if (interactive_shell && (sourcelevel||running_trap))</span></a>
|
|
<a name="218"><span class="lineNum"> 218 </span><span class="lineNoCov"> 0 : set_signal_handler (SIGINT, sigint_sighandler);</span></a>
|
|
<a name="219"><span class="lineNum"> 219 </span> : else</a>
|
|
<a name="220"><span class="lineNum"> 220 </span><span class="lineNoCov"> 0 : set_signal_handler (SIGINT, termsig_sighandler);</span></a>
|
|
<a name="221"><span class="lineNum"> 221 </span> : break;</a>
|
|
<a name="222"><span class="lineNum"> 222 </span> : </a>
|
|
<a name="223"><span class="lineNum"> 223 </span><span class="lineNoCov"> 0 : case SIGQUIT:</span></a>
|
|
<a name="224"><span class="lineNum"> 224 </span> : /* Always ignore SIGQUIT. */</a>
|
|
<a name="225"><span class="lineNum"> 225 </span><span class="lineNoCov"> 0 : set_signal_handler (SIGQUIT, SIG_IGN);</span></a>
|
|
<a name="226"><span class="lineNum"> 226 </span><span class="lineNoCov"> 0 : break;</span></a>
|
|
<a name="227"><span class="lineNum"> 227 </span><span class="lineNoCov"> 0 : case SIGTERM:</span></a>
|
|
<a name="228"><span class="lineNum"> 228 </span> : #if defined (JOB_CONTROL)</a>
|
|
<a name="229"><span class="lineNum"> 229 </span> : case SIGTTIN:</a>
|
|
<a name="230"><span class="lineNum"> 230 </span> : case SIGTTOU:</a>
|
|
<a name="231"><span class="lineNum"> 231 </span> : case SIGTSTP:</a>
|
|
<a name="232"><span class="lineNum"> 232 </span> : #endif /* JOB_CONTROL */</a>
|
|
<a name="233"><span class="lineNum"> 233 </span><span class="lineNoCov"> 0 : if (interactive)</span></a>
|
|
<a name="234"><span class="lineNum"> 234 </span><span class="lineNoCov"> 0 : set_signal_handler (sig, SIG_IGN);</span></a>
|
|
<a name="235"><span class="lineNum"> 235 </span> : break;</a>
|
|
<a name="236"><span class="lineNum"> 236 </span> : }</a>
|
|
<a name="237"><span class="lineNum"> 237 </span> : break;</a>
|
|
<a name="238"><span class="lineNum"> 238 </span> : </a>
|
|
<a name="239"><span class="lineNum"> 239 </span><span class="lineNoCov"> 0 : case IGNORE:</span></a>
|
|
<a name="240"><span class="lineNum"> 240 </span><span class="lineNoCov"> 0 : ignore_signal (sig);</span></a>
|
|
<a name="241"><span class="lineNum"> 241 </span><span class="lineNoCov"> 0 : break;</span></a>
|
|
<a name="242"><span class="lineNum"> 242 </span> : }</a>
|
|
<a name="243"><span class="lineNum"> 243 </span><span class="lineCov"> 84 : }</span></a>
|
|
<a name="244"><span class="lineNum"> 244 </span><span class="lineCov"> 84 : list = list->next;</span></a>
|
|
<a name="245"><span class="lineNum"> 245 </span> : }</a>
|
|
<a name="246"><span class="lineNum"> 246 </span> : }</a>
|
|
<a name="247"><span class="lineNum"> 247 </span> : </a>
|
|
<a name="248"><span class="lineNum"> 248 </span> : return (result);</a>
|
|
<a name="249"><span class="lineNum"> 249 </span> : }</a>
|
|
<a name="250"><span class="lineNum"> 250 </span> : </a>
|
|
<a name="251"><span class="lineNum"> 251 </span> : static void</a>
|
|
<a name="252"><span class="lineNum"> 252 </span><span class="lineCov"> 5984 : showtrap (i)</span></a>
|
|
<a name="253"><span class="lineNum"> 253 </span> : int i;</a>
|
|
<a name="254"><span class="lineNum"> 254 </span> : {</a>
|
|
<a name="255"><span class="lineNum"> 255 </span><span class="lineCov"> 5984 : char *t, *p, *sn;</span></a>
|
|
<a name="256"><span class="lineNum"> 256 </span> : </a>
|
|
<a name="257"><span class="lineNum"> 257 </span><span class="lineCov"> 5984 : p = trap_list[i];</span></a>
|
|
<a name="258"><span class="lineNum"> 258 </span><span class="lineCov"> 5984 : if (p == (char *)DEFAULT_SIG && signal_is_hard_ignored (i) == 0)</span></a>
|
|
<a name="259"><span class="lineNum"> 259 </span> : return;</a>
|
|
<a name="260"><span class="lineNum"> 260 </span><span class="lineCov"> 176 : else if (signal_is_hard_ignored (i))</span></a>
|
|
<a name="261"><span class="lineNum"> 261 </span> : t = (char *)NULL;</a>
|
|
<a name="262"><span class="lineNum"> 262 </span> : else</a>
|
|
<a name="263"><span class="lineNum"> 263 </span><span class="lineNoCov"> 0 : t = (p == (char *)IGNORE_SIG) ? (char *)NULL : sh_single_quote (p);</span></a>
|
|
<a name="264"><span class="lineNum"> 264 </span> : </a>
|
|
<a name="265"><span class="lineNum"> 265 </span><span class="lineCov"> 176 : sn = signal_name (i);</span></a>
|
|
<a name="266"><span class="lineNum"> 266 </span> : /* Make sure that signals whose names are unknown (for whatever reason)</a>
|
|
<a name="267"><span class="lineNum"> 267 </span> : are printed as signal numbers. */</a>
|
|
<a name="268"><span class="lineNum"> 268 </span><span class="lineCov"> 176 : if (STREQN (sn, "SIGJUNK", 7) || STREQN (sn, "unknown", 7))</span></a>
|
|
<a name="269"><span class="lineNum"> 269 </span><span class="lineNoCov"> 0 : printf ("trap -- %s %d\n", t ? t : "''", i);</span></a>
|
|
<a name="270"><span class="lineNum"> 270 </span><span class="lineCov"> 176 : else if (posixly_correct)</span></a>
|
|
<a name="271"><span class="lineNum"> 271 </span> : {</a>
|
|
<a name="272"><span class="lineNum"> 272 </span><span class="lineNoCov"> 0 : if (STREQN (sn, "SIG", 3))</span></a>
|
|
<a name="273"><span class="lineNum"> 273 </span><span class="lineNoCov"> 0 : printf ("trap -- %s %s\n", t ? t : "''", sn+3);</span></a>
|
|
<a name="274"><span class="lineNum"> 274 </span> : else</a>
|
|
<a name="275"><span class="lineNum"> 275 </span><span class="lineNoCov"> 0 : printf ("trap -- %s %s\n", t ? t : "''", sn);</span></a>
|
|
<a name="276"><span class="lineNum"> 276 </span> : }</a>
|
|
<a name="277"><span class="lineNum"> 277 </span> : else</a>
|
|
<a name="278"><span class="lineNum"> 278 </span><span class="lineCov"> 352 : printf ("trap -- %s %s\n", t ? t : "''", sn);</span></a>
|
|
<a name="279"><span class="lineNum"> 279 </span> : </a>
|
|
<a name="280"><span class="lineNum"> 280 </span><span class="lineCov"> 176 : FREE (t);</span></a>
|
|
<a name="281"><span class="lineNum"> 281 </span> : }</a>
|
|
<a name="282"><span class="lineNum"> 282 </span> : </a>
|
|
<a name="283"><span class="lineNum"> 283 </span> : static int</a>
|
|
<a name="284"><span class="lineNum"> 284 </span><span class="lineCov"> 88 : display_traps (list)</span></a>
|
|
<a name="285"><span class="lineNum"> 285 </span> : WORD_LIST *list;</a>
|
|
<a name="286"><span class="lineNum"> 286 </span> : {</a>
|
|
<a name="287"><span class="lineNum"> 287 </span><span class="lineCov"> 88 : int result, i;</span></a>
|
|
<a name="288"><span class="lineNum"> 288 </span> : </a>
|
|
<a name="289"><span class="lineNum"> 289 </span><span class="lineCov"> 88 : if (list == 0)</span></a>
|
|
<a name="290"><span class="lineNum"> 290 </span> : {</a>
|
|
<a name="291"><span class="lineNum"> 291 </span><span class="lineCov"> 6072 : for (i = 0; i < BASH_NSIG; i++)</span></a>
|
|
<a name="292"><span class="lineNum"> 292 </span><span class="lineCov"> 5984 : showtrap (i);</span></a>
|
|
<a name="293"><span class="lineNum"> 293 </span> : return (EXECUTION_SUCCESS);</a>
|
|
<a name="294"><span class="lineNum"> 294 </span> : }</a>
|
|
<a name="295"><span class="lineNum"> 295 </span> : </a>
|
|
<a name="296"><span class="lineNum"> 296 </span><span class="lineNoCov"> 0 : for (result = EXECUTION_SUCCESS; list; list = list->next)</span></a>
|
|
<a name="297"><span class="lineNum"> 297 </span> : {</a>
|
|
<a name="298"><span class="lineNum"> 298 </span><span class="lineNoCov"> 0 : i = decode_signal (list->word->word, DSIG_NOCASE|DSIG_SIGPREFIX);</span></a>
|
|
<a name="299"><span class="lineNum"> 299 </span><span class="lineNoCov"> 0 : if (i == NO_SIG)</span></a>
|
|
<a name="300"><span class="lineNum"> 300 </span> : {</a>
|
|
<a name="301"><span class="lineNum"> 301 </span><span class="lineNoCov"> 0 : sh_invalidsig (list->word->word);</span></a>
|
|
<a name="302"><span class="lineNum"> 302 </span><span class="lineNoCov"> 0 : result = EXECUTION_FAILURE;</span></a>
|
|
<a name="303"><span class="lineNum"> 303 </span> : }</a>
|
|
<a name="304"><span class="lineNum"> 304 </span> : else</a>
|
|
<a name="305"><span class="lineNum"> 305 </span><span class="lineNoCov"> 0 : showtrap (i);</span></a>
|
|
<a name="306"><span class="lineNum"> 306 </span> : }</a>
|
|
<a name="307"><span class="lineNum"> 307 </span> : </a>
|
|
<a name="308"><span class="lineNum"> 308 </span> : return (result);</a>
|
|
<a name="309"><span class="lineNum"> 309 </span> : }</a>
|
|
</pre>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
<br>
|
|
|
|
<table width="100%" border=0 cellspacing=0 cellpadding=0>
|
|
<tr><td class="ruler"><img src="../glass.png" width=3 height=3 alt=""></td></tr>
|
|
<tr><td class="versionInfo">Generated by: <a href="http://ltp.sourceforge.net/coverage/lcov.php" target="_parent">LCOV version 1.14.0.6.4058</a></td></tr>
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</table>
|
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<br>
|
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|
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</body>
|
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</html>
|