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Re: call_external (IDL5.5) [message #29497 is a reply to message #29496]

Mon, 25 February 2002 05:19

R.Bauer
Messages: 1424
Registered: November 1998

Senior Member

Reimar Bauer wrote:
>
Hi,
I give an example:

The following compiled and used by idl5.4.1 works fine and IDL5.5 got's
a memory fault.

IDL> PRINT,call_external('my_stat.so.linux','uid','file.txt',/i_v alue)

/*
Linux:
gcc -fPIC -Wall -g -c my_stat.c
gcc -g -shared -W1,-soname,my_stat.so.0 -o my_stat.so.linux my_stat.o
-lc
*/

#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>

typedef struct {
unsigned short slen;
short stype;
char *s;
} IDL_STRING;

double uid(int argc, void *argv[])
{
/* returns the user-id of the file */
struct stat s;
int rcode;
IDL_STRING path;
char buf[1023];
long uid;

path=*(IDL_STRING *) argv[0];
strcpy(buf,path.s);
buf[path.slen]='\0';

rcode=stat(buf,&s);

uid=s.st_uid;

return(uid);

}

--
Reimar Bauer

Institut fuer Stratosphaerische Chemie (ICG-1)
Forschungszentrum Juelich
email: R.Bauer@fz-juelich.de
http://www.fz-juelich.de/icg/icg1/
============================================================ ======
a IDL library at ForschungsZentrum Juelich
http://www.fz-juelich.de/icg/icg1/idl_icglib/idl_lib_intro.h tml

http://www.fz-juelich.de/zb/text/publikation/juel3786.html
============================================================ ======

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[Message index]

		Re: call_external (IDL5.5) By: Craig Markwardt on Tue, 26 February 2002 10:43
		Re: call_external (IDL5.5) By: R.Bauer on Tue, 26 February 2002 08:58
		Re: call_external (IDL5.5) By: Mark Rivers on Mon, 25 February 2002 20:03
		Re: call_external (IDL5.5) By: James Kuyper on Mon, 25 February 2002 07:28
		Re: call_external (IDL5.5) By: Mark Rivers on Mon, 25 February 2002 06:56
		Re: call_external (IDL5.5) By: notspecified on Mon, 25 February 2002 05:56
		Re: call_external (IDL5.5) By: Gert Van de Wouwer on Mon, 25 February 2002 05:35
		Re: call_external (IDL5.5) By: R.Bauer on Mon, 25 February 2002 05:19
		Re: call_external (IDL5.5) By: Gert Van de Wouwer on Wed, 06 March 2002 06:42

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