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Full Discussion: capture sqsh segmentation fault error
Top Forums UNIX for Advanced & Expert Users capture sqsh segmentation fault error Post 302337463 by sudheer1984 on Friday 24th of July 2009 07:44:07 AM
Old 07-24-2009
capture sqsh segmentation fault error
hi all

is there any way to capture the segmentation fault error when i run sqsh on a unix shell script.

Ex:

Code:
 
#!/bin/ksh
sqsh -S "server" -U "user" -P "pwd" << EOF
use mydb
go
exec proc1
go
exit
EOF
retval=$?
echo "sqsh return value $retval"
if [ $retval != 0 ]
then
exit
fi

bcoz of my proc1 i am getting segmentation fault which prints error message only on console, but this error my script is not able to capture. it always print 0 as return value. is there any way to handle this situtation.

i tried this also
Code:
 
#!/bin/ksh
sqsh -S "server" -U "user" -P "pwd" << EOF 2>errfile
use mydb
go
exec proc1
go
exit
EOF
if [ ! -z `cat errfile | grep Segmentation` ]
then
exit
fi

please help.
thanks in advance.
 

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LEARN ABOUT OPENSOLARIS

uucopy

uucopy(2)							   System Calls 							 uucopy(2)

NAME

       uucopy - no-fault memory-to-memory copy

SYNOPSIS

       #include <strings.h>

       int uucopy(const void *s1, void *s2, size_t n);

DESCRIPTION

       The uucopy() function copies n bytes from memory area s1 to s2.	Copying  between objects that overlap could corrupt one or both buffers.

       Unlike  bcopy(3C),  uucopy()  does  not	cause a segmentation fault if either the source or destination buffer includes an illegal address.
       Instead, it returns -1 and sets errno to EFAULT. This error could occur after the operation has partially completed, so the contents of the
       buffer at s2 are defined if the operation fails.

RETURN VALUES

       Upon successful completion, uucopy() returns 0.	Otherwise, the function returns -1 and	set errno to indicate the error.

ERRORS

       The uucopy() function will fail if:

       EFAULT	 Either the s1 or s2 arguments points to an illegal address.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       bcopy(3C), attributes(5)

SunOS 5.11							    12 Sep 2006 							 uucopy(2)
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