🚀 go-pugleaf

On 27 Nov 1995 12:27:00 +0100, tony@Austria.EU.net (Tony Curtis) wrote:
>In article <49b2cg$4e3@decaxp.harvard.edu> sarmad@scunix4.harvard.edu (Shaikh Sarmad) writes:
>   *** Joev's suggestion ***
>   : main (int argc, char **argv)
>   : {
>   : 	char cmd[100];
>   : 	sprintf(cmd, "finger -m %s", argv[1]);
>   : 	system(cmd);
>   : }
>
>   *** Eugene's suggestion ***
>   : main (int argc, char **argv)
>   : {	char cmd [80];
>   :	strcpy (cmd, "finger -m ");
>   :	strcat (cmd, argv[1]);
>   :	system (cmd);
>   : }
>
>There is a problem with both of these though.
>An execv() with dynamically allocated space would be the
>better solution (I believe one was posted sometime).

It's way too big.  Ug.  How about this then:

#include    <stdio.h>
#include    <stdlib.h>

char	*finger	= "finger -m ";
main( int argc, char *argv[] )
  {
    char    *command;
    int	     arg = 0;

    while (--argc > 0)
      {
	command	= malloc( 2 + strlen( finger ) + strlen( argv[++arg] ));
	if ( !command )
	  {
	    fputs( "Can't allocate memory for command\n", stderr );
	    exit( EXIT_FAILURE );
	  }
	strcpy( command, finger );
	strcat( command, argv[arg] );
	system( command );

	free( command );
      }

    if ( arg )
	exit( EXIT_SUCCESS );
    else
	fputs( "I need to know who to finger!\n", stderr );

    return  EXIT_FAILURE;	/* For the picky but stupid compilers */
  }

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Kevin D Quitt  USA 91351-4454		96.37% of all statistics are made up