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a061d97027
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65 lines
1.6 KiB
Bash
65 lines
1.6 KiB
Bash
# -*- tab-width: 4 -*- ;; Emacs
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# vi: set filetype=sh tabstop=8 shiftwidth=8 noexpandtab :: Vi/ViM
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############################################################ IDENT(1)
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#
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# $Title: dwatch(8) module for [l]chmod(2), fchmodat(2), or similar entry $
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# $Copyright: 2014-2018 Devin Teske. All rights reserved. $
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# $FreeBSD$
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#
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############################################################ DESCRIPTION
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#
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# Print mode/path being passed to chmod(2), lchmod(2), fchmodat(2), or similar
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#
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############################################################ PROBE
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case "$PROFILE" in
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chmod)
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: ${PROBE:=$( echo \
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syscall::chmod:entry, \
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syscall::lchmod:entry, \
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syscall::fchmodat:entry )}
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;;
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*)
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: ${PROBE:=syscall::$PROFILE:entry}
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esac
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############################################################ ACTIONS
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exec 9<<EOF
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this mode_t mode;
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this string path;
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this u_char at;
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$PROBE /* probe ID $ID */
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{${TRACE:+
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printf("<$ID>");
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}
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/*
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* Should we expect the first argument to be a file descriptor?
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* NB: Based on probefunc ending in "at" (e.g., fchmodat(2))
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*/
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this->at = strstr(probefunc, "at") ==
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(probefunc + strlen(probefunc) - 2) ? 1 : 0;
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this->mode = (mode_t)(this->at ? arg2 : arg1);
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this->path = copyinstr(this->at ? arg1 : arg0);
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}
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EOF
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ACTIONS=$( cat <&9 )
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ID=$(( $ID + 1 ))
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############################################################ EVENT DETAILS
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if [ ! "$CUSTOM_DETAILS" ]; then
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exec 9<<EOF
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/*
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* Print mode/path details
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*/
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printf("%04o %s", this->mode, this->path);
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EOF
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EVENT_DETAILS=$( cat <&9 )
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fi
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################################################################################
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# END
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################################################################################
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