Package: ksh
Version: 93u-1
Severity: important
Traps set inside KSH functions and 'set -e' (exit on error) command
are ignored when the function is used in a command substitution
and the command substitution $( ) is contained in a || or && command,
or is following an 'if'. This problem does not occur in pdksh.
EXAMPLE:
#!/bin/ksh
function foo {
set -e
trap 'print "ERR trap of foo" > /dev/fd/2' ERR
false #false, having exit status 1, should execute the trap and then
terminate foo()
print 'we should not be here'
return 0
}
print 'first try'
s=$(foo) || print 'foo returned with a non-zero exit status'
echo "($s)"
print 'second try'
s=$(foo)
echo "($s)"
OUTPUT (ksh):
first try
(we should not be here)
second try
ERR trap of foo
()
OUTPUT (pdksh):
first try
ERR trap of foo
foo returned with a non-zero exit status
()
second try
ERR trap of foo
()
-- System Information:
Debian Release: wheezy/sid
APT prefers oneiric-updates
APT policy: (500, 'oneiric-updates'), (500, 'oneiric-security'), (500,
'oneiric'), (100, 'oneiric-backports')
Architecture: i386 (i686)
Kernel: Linux 3.0.0-13-generic (SMP w/1 CPU core)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages ksh depends on:
ii libc6 2.13-20ubuntu5 Embedded GNU C Library: Shared lib
ksh recommends no packages.
ksh suggests no packages.
-- no debconf information
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