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|
/*
* U s a g e
*
*/
static void Usage ( char *ProgName )
{
fprintf (stderr, "\n For the %s program to run you must include the following parameter :\n",ProgName );
fprintf (stderr, "\n -f filename : input file");
fprintf (stderr, "\n But you may also include the following parameter :\n");
fprintf (stderr, "\n [-O] : optimization flag");
fprintf (stderr, "\n [-V] : gives the software's version.");
fprintf (stderr, "\n [-R directory] : base directory where database is located.");
fprintf (stderr, "\n [%s is the default]",getenv("PWD"));
fprintf (stderr, "\n [-GIF] : formatting image as GIF [the default is not GIF]");
fprintf (stderr, "\n [-freq N] : frequency (in seconds) at which server will watch");
fprintf (stderr, "\n changes in realtime in the DB [60 is the default].");
fprintf (stderr, "\n\n");
}
/*
* C h e c k s _ O p t i o n s
*
*/
static int Checks_Options ( int argc, char **argv )
{
int i, s = SUCCESS ;
for ( i = 1 ; i < argc ; i++ )
{
/* Input file */
if ( strcasecmp(argv[i], "-f") == 0 )
{
if ( i == (argc-1) )
{
Usage(argv[0]);
return ERROR ;
}
FICHIER = argv[i+1] ;
i = i + 1 ;
continue ;
}
/* Version */
if ( strcasecmp(argv[i], "-V") == 0 )
{
fprintf ( stderr, "\n VERSION %d\n",VERSION);
continue ;
}
/* Optimisation */
if ( strcasecmp(argv[i], "-O") == 0 )
{
Optimize = True ;
continue ;
}
/* Checks a directory was set to contain the database */
if ( strcasecmp(argv[i], "-R") == 0 )
{
if ( i == (argc-1) )
{
Usage(argv[0]);
return ERROR ;
}
Repertoire = argv[i+1] ;
i = i + 1 ;
continue ;
}
/* Checks if the GIF flag was set */
if ( strcasecmp(argv[i], "-GIF") == 0 )
{
WITHGIF = True ;
continue ;
}
/* Frequency of dababase checking in seconds */
if ( (strcasecmp(argv[i], "-freq") == 0) ||
((strncmp(argv[i], "-f", 2) == 0) && (argv[i][2] != 'd')) )
{
if ( i == (argc-1) )
{
Usage(argv[0]);
return ERROR ;
}
sscanf ( argv[i+1], "%d", &Frequency );
i = i + 1 ;
continue ;
}
/* Checks if the local debug flag was set */
if ( strcmp(argv[i], "-d") == 0 )
{
DEBUG = True ;
continue ;
}
}
if ( FICHIER == NULL )
s = ERROR ;
return s ;
}
/*
*******************
Programme principal
*******************
*/
int main(int argc, char *argv[])
{
/* Initialisation des variables */
.....
/*
--- Vérifie si on a bien le nombre MINIMUM d'arguments
*/
if ( argc < 3 )
{
Usage(argv[0]);
return EXIT_FAILURE ;
}
/*
--- Vérifie quelles sont les options et aguments
*/
if ( Checks_Options(argc, argv) == ERROR )
{
Usage(argv[0]);
return EXIT_FAILURE ;
}
....
return EXIT_SUCCESS ;
} |
