char *
err_string()
{
register struct errs *errp;
register int cnt = 0;
register int first = Yes;
register int currerr = -1;
int stringlen; /* characters still available in "string" */
static char string[STRMAX];
/* if there are no errors, return NULL */
if (errcnt == 0)
{
return (NULL);
}
/* sort the errors */
qsort((char *) errs, errcnt, sizeof(struct errs), err_compar);
/* need a space at the front of the error string */
string[0] = ' ';
string[1] = '\0';
stringlen = STRMAX - 2;
/* loop thru the sorted list, building an error string */
while (cnt < errcnt)
{
errp = &(errs[cnt++]);
if (errp->errnum != currerr)
{
if (currerr != -1)
{
if ((stringlen = str_adderr(string, stringlen, currerr)) < 2)
{
return (err_listem);
}
(void) strcat(string, "; "); /* we know there's more */
}
currerr = errp->errnum;
first = Yes;
}
if ((stringlen = str_addarg(string, stringlen, errp->arg, first)) == 0)
{
return (err_listem);
}
first = No;
}
/* add final message */
stringlen = str_adderr(string, stringlen, currerr);
/* return the error string */
return (stringlen == 0 ? err_listem : string);
}
static void
err_string(void)
{
register struct errs *errp;
register int cnt = 0;
register int first = Yes;
register int currerr = -1;
int stringlen = 0; /* characters still available in "string" */
char string[STRMAX];
/* if there are no errors, our job is easy */
if (errcnt == 0)
{
return;
}
/* sort the errors */
qsort((char *)errs, errcnt, sizeof(struct errs), err_compar);
/* initialize the buffer (probably not necessary) */
string[0] = '\0';
stringlen = STRMAX - 1;
/* loop thru the sorted list, logging errors */
while (cnt < errcnt)
{
/* point to the current error */
errp = &(errs[cnt++]);
/* note that on overflow "stringlen" will become 0 and all
subsequent calls to str_addarg or str_adderr will return 0 */
/* if the error number is different then add the error string */
if (errp->errnum != currerr)
{
if (currerr != -1)
{
/* add error string and log the error */
stringlen = str_adderr(string, stringlen, currerr);
message_error(" %s", string);
}
/* reset the buffer */
string[0] = '\0';
stringlen = STRMAX - 1;
/* move to next error num */
currerr = errp->errnum;
first = Yes;
}
/* add this arg */
stringlen = str_addarg(string, stringlen, errp->arg, first);
first = No;
}
/* add final message */
stringlen = str_adderr(string, stringlen, currerr);
/* write the error string */
message_error(" %s", string);
}