/*
* _ng_parse(): Parse a line and return: _NG_ERROR: Syntax Error _NG_NONE:
* line was empty or a comment _NG_GROUP: line had a netgroup definition,
* returned in ng _NG_NAME: line had a netgroup name, returned in name
*
* Public since used by netgroup_mkdb
*/
int
_ng_parse(char **p, char **name, struct netgroup **ng)
{
while (**p) {
if (**p == '#')
/* comment */
return _NG_NONE;
while (**p && _NG_ISSPACE(**p))
/* skipblank */
(*p)++;
if (**p == '(') {
if ((*ng = getnetgroup(p)) == NULL)
return _NG_ERROR;
return _NG_GROUP;
} else {
char *np;
int i;
for (np = *p; **p && !_NG_ISSPACE(**p); (*p)++)
continue;
if (np != *p) {
i = (*p - np) + 1;
*name = malloc(i);
if (*name == NULL)
return _NG_ERROR;
memcpy(*name, np, i);
(*name)[i - 1] = '\0';
return _NG_NAME;
}
}
}
return _NG_NONE;
}
/*
* getstring(): Get a string delimited by the character, skipping leading and
* trailing blanks and advancing the pointer
*/
static int
getstring(char **pp, int del, char __aconst **str)
{
size_t len;
char *sp, *ep, *dp;
_DIAGASSERT(pp != NULL);
_DIAGASSERT(str != NULL);
/* skip leading blanks */
for (sp = *pp; *sp && _NG_ISSPACE(*sp); sp++)
continue;
/* accumulate till delimiter or space */
for (ep = sp; *ep && *ep != del && !_NG_ISSPACE(*ep); ep++)
continue;
/* hunt for the delimiter */
for (dp = ep; *dp && *dp != del && _NG_ISSPACE(*dp); dp++)
continue;
if (*dp != del) {
*str = NULL;
return 0;
}
*pp = ++dp;
len = (ep - sp) + 1;
if (len > 1) {
dp = malloc(len);
if (dp == NULL)
return 0;
(void)memcpy(dp, sp, len);
dp[len - 1] = '\0';
} else
dp = NULL;
*str = dp;
return 1;
}
/*
* getstring(): Get a string delimited by the character, skipping leading and
* trailing blanks and advancing the pointer
*/
static int
getstring(char **pp, int del, char **str)
{
char *sp, *ep, *dp;
/* skip leading blanks */
for (sp = *pp; *sp && _NG_ISSPACE(*sp); sp++)
continue;
/* accumulate till delimiter or space */
for (ep = sp; *ep && *ep != del && !_NG_ISSPACE(*ep); ep++)
continue;
/* hunt for the delimiter */
for (dp = ep; *dp && *dp != del && _NG_ISSPACE(*dp); dp++)
continue;
if (*dp != del) {
*str = NULL;
return 0;
}
*pp = ++dp;
del = (ep - sp) + 1;
if (del > 1) {
dp = malloc(del);
if (dp == NULL)
return 0;
memcpy(dp, sp, del);
dp[del - 1] = '\0';
} else
dp = NULL;
*str = dp;
return 1;
}
