static void errorfn(struct arg_file *parent, FILE *fp, int errorcode, const char *argval, const char *progname)
{
const char *shortopts = parent->hdr.shortopts;
const char *longopts = parent->hdr.longopts;
const char *datatype = parent->hdr.datatype;
/* make argval NULL safe */
argval = argval ? argval : "";
fprintf(fp,"%s: ",progname);
switch(errorcode)
{
case EMINCOUNT:
fputs("missing option ",fp);
arg_print_option(fp,shortopts,longopts,datatype,"\n");
break;
case EMAXCOUNT:
fputs("excess option ",fp);
arg_print_option(fp,shortopts,longopts,argval,"\n");
break;
default:
fprintf(fp,"unknown error at \"%s\"\n",argval);
}
}
static void errorfn(struct arg_uint *parent, FILE *fp, int errorcode, const char *argval, const char *progname)
{
const char *shortopts = parent->hdr.shortopts;
const char *longopts = parent->hdr.longopts;
const char *datatype = parent->hdr.datatype;
/* make argval NULL safe */
argval = argval ? argval : "";
fprintf(fp,"%s: ",progname);
switch(errorcode)
{
case EMINCOUNT:
fputs("missing option ",fp);
arg_print_option(fp,shortopts,longopts,datatype,"\n");
break;
case EMAXCOUNT:
fputs("excess option ",fp);
arg_print_option(fp,shortopts,longopts,argval,"\n");
break;
case EBADINT:
fprintf(fp,"invalid argument \"%s\" to option ",argval);
arg_print_option(fp,shortopts,longopts,datatype,"\n");
break;
case EOVERFLOW:
fputs("integer overflow at option ",fp);
arg_print_option(fp,shortopts,longopts,datatype," ");
fprintf(fp,"(%s is too large)\n",argval);
break;
}
}
static void errorfn(struct arg_lit *parent, FILE *fp, int errorcode, const char *argval, const char *progname)
{
const char *shortopts = parent->hdr.shortopts;
const char *longopts = parent->hdr.longopts;
const char *datatype = parent->hdr.datatype;
switch(errorcode)
{
case EMINCOUNT:
lib_fprintf(fp,"%s: missing option ",progname);
arg_print_option(fp,shortopts,longopts,datatype,"\n");
lib_fprintf(fp,"\n");
break;
case EMAXCOUNT:
lib_fprintf(fp,"%s: extraneous option ",progname);
arg_print_option(fp,shortopts,longopts,datatype,"\n");
break;
}
}
/* errorfn is called by arg_print_errors() for each error that was returned
* by the scanfn defined above.
* Parameters:
* struct arg_xxx *parent = ptr to the arg_xxx struct in the argtable.
* FILE *fp = output stream
* int errorcode = the error code returned by the scanfn routine
* const char *argval = ptr to the offending command line argv[] string (may be NULL)
* const char *progname = the same progname string passed to arg_print_errors()
*/
static void errorfn(struct arg_xxx *parent, FILE *fp, int errorcode, const char *argval, const char *progname)
{
const char *shortopts = parent->hdr.shortopts;
const char *longopts = parent->hdr.longopts;
const char *datatype = parent->hdr.datatype;
/* make argval NULL safe */
argval = argval ? argval : "";
fprintf(fp,"%s: ",progname);
switch(errorcode)
{
case EMINCOUNT:
/* We expected more arg_xxx arguments than we received. */
fputs("missing option \"",fp);
arg_print_option(fp,shortopts,longopts,datatype,"\"\n");
break;
case EMAXCOUNT:
/* We received more arg_xxx arguments than we expected. */
fputs("excess option \"",fp);
arg_print_option(fp,shortopts,longopts,argval,"\"\n");
break;
case EBADRANGE:
/* An arg_xxx option was given a double value that */
/* exceeded our imposed [minval,maxval] range limit. */
fprintf(fp,"value \"%s\" out of range for option ",argval);
arg_print_option(fp,shortopts,longopts,datatype,"\n");
break;
case EBADINT:
/* An arg_xxx option was given with an invalid double value */
fprintf(fp,"invalid argument \"%s\" to option ",argval);
arg_print_option(fp,shortopts,longopts,datatype,"\n");
break;
}
}
static void errorfn(struct arg_date *parent, FILE *fp, int errorcode, const char *argval, const char *progname)
{
const char *shortopts = parent->hdr.shortopts;
const char *longopts = parent->hdr.longopts;
const char *datatype = parent->hdr.datatype;
/* make argval NULL safe */
argval = argval ? argval : "";
fprintf(fp,"%s: ",progname);
switch(errorcode)
{
case EMINCOUNT:
fputs("missing option ",fp);
arg_print_option(fp,shortopts,longopts,datatype,"\n");
break;
case EMAXCOUNT:
fputs("excess option ",fp);
arg_print_option(fp,shortopts,longopts,argval,"\n");
break;
case EBADDATE:
{
struct tm tm;
char buff[200];
fprintf(fp,"illegal timestamp format \"%s\"\n",argval);
bzero(&tm,sizeof(tm));
strptime("1999-12-31 23:59:59","%F %H:%M:%S",&tm);
strftime(buff, sizeof(buff), parent->format, &tm);
printf("correct format is \"%s\"\n", buff);
break;
}
}
}
static void errorfn(struct arg_rex *parent, FILE *fp, int errorcode, const char *argval, const char *progname)
{
const char *shortopts = parent->hdr.shortopts;
const char *longopts = parent->hdr.longopts;
const char *datatype = parent->hdr.datatype;
/* make argval NULL safe */
argval = argval ? argval : "";
fprintf(fp,"%s: ",progname);
switch(errorcode)
{
case EMINCOUNT:
fputs("missing option ",fp);
arg_print_option(fp,shortopts,longopts,datatype,"\n");
break;
case EMAXCOUNT:
fputs("excess option ",fp);
arg_print_option(fp,shortopts,longopts,argval,"\n");
break;
case REG_NOMATCH:
fputs("illegal value ",fp);
arg_print_option(fp,shortopts,longopts,argval,"\n");
break;
default:
{
char errbuff[256];
regerror(errorcode, NULL, errbuff, sizeof(errbuff));
printf("%s\n", errbuff);
}
break;
}
}
/*
* Argtable calls an arg_xxx structure's hdr.errorfn routine when arg_print_errors is executed.
* The errorfn routine must print a meaningful error messages for the given error code.
* The error codes are the same values returned by scanfn and checkfn.
*/
void myerrorfn(struct arg_int *parent, FILE *fp, int errorcode, const char *argval, const char *progname)
{
const char *shortopts = parent->hdr.shortopts;
const char *longopts = parent->hdr.longopts;
const char *datatype = parent->hdr.datatype;
fprintf(fp,"%s: ",progname);
switch(errorcode)
{
case EMINCOUNT:
fputs("missing option ",fp);
arg_print_option(fp,shortopts,longopts,datatype,"\n");
break;
case EMAXCOUNT:
fputs("excess option ",fp);
arg_print_option(fp,shortopts,longopts,argval,"\n");
break;
case EBADINT:
arg_print_option(fp,shortopts,longopts,argval," is not a valid <int>\n");
break;
case EZEROVAL:
arg_print_option(fp,shortopts,longopts,datatype," values cannot be zero\n");
break;
case EODDCOUNT:
arg_print_option(fp,shortopts,longopts,datatype," values must occur in even numbers\n");
break;
case EBADSUM:
arg_print_option(fp,shortopts,longopts,datatype," values must sum to 100\n");
break;
}
}
