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This patch adds basic vfork support for the case of a simple command.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Currently the exit status when we receive SIGINT is set in evalcommand
which means that it doesn't always get set. For example, if you press
CTRL-C at the prompt of an interactive dash, the exit status is not
set to 130 as it is in many other Bourne shells.
This patch fixes this by moving the setting of the exit status into
onint which also simplifies evalcommand.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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When tracing (with the DEBUG compile-time option set to 1 or 2),
exverror calls TRACEV to print its arguments before passing them on.
So the arguments are consumed by the time exvwarning looks for them,
resulting in a segfault:
$ sh -c '"'
sh: Syntax error: Unterminated quoted string
$ sh -o debug -c '"'
sh: Segmentation fault (core dumped)
Make a copy with va_copy to avoid this.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch improves LINENO support by storing line numbers in the parse
tree, for commands as well as for function definitions. It makes LINENO
behaves properly when calling functions, and has the added benefit of
improved line numbers in error messages when the last-parsed command is
not the last-executed one. It removes the earlier LINENO support, and
instead sets LINENO from evaltree when a command is executed
Signed-off-by: Harald van Dijk <harald@gigawatt.nl>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Some errors have exit status values specified by POSIX and it is
therefore desirable to be able to set the exit status at the EXERROR
source rather than in main.c.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Now that waitcmd no longer uses EXSIG we can remove it.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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As it stands if we get an error before procargs gets called by main()
we'll try to print out a null pointer. This patch avoids this by
printing out "sh" instead.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This change updates the BSD licence to the three-clause version since
NetBSD has already done so. This makes dash GPL-compatible.
It also adds Christos Zoulas (NetBSD ash maintainer) to the COPYING file.
I've added "copyright by Herbert Xu" to most files.
Finally all CVS IDs and inclusion of sys/cdefs.h have been removed.
The latter is needed for support of klibc.
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