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- rework the parser to regain support for 1.2 ips. No longer uses

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inet_pton for ipv4.

These are untested (other than compiling), as I've got issues with the
console I need to sort out.
This commit is contained in:
Adam Olsen 2001-09-17 05:08:13 +00:00
parent d3e8e4ed11
commit dcbc9ada26
1 changed files with 37 additions and 25 deletions
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68
qw/source/sv_main.c
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@ -1178,14 +1178,15 @@ qboolean
SV_StringToFilter (const char *address, ipfilter_t *f)
{
#ifdef HAVE_IPV6
byte b[16];
byte b[16] = {};
#else
byte b[4];
byte b[4] = {};
#endif
int mask;
int i;
int mask = 0;
int i = 0;
char *s;
char *slash;
char *c;
Con_Printf ("SV_StringToFilter: '%s'\n", address);
@ -1193,6 +1194,7 @@ SV_StringToFilter (const char *address, ipfilter_t *f)
if (!s)
Sys_Error ("SV_StringToFilter: memory allocation failure\n");
// Parse out the mask (the /8 part)
if ((slash = strchr (s, '/'))) {
char *endptr;
*slash = '\0';
@ -1213,34 +1215,41 @@ SV_StringToFilter (const char *address, ipfilter_t *f)
} else
mask = -1;
// parse the ip for ipv6
#ifdef HAVE_IPV6
// FIXME: we *must* fill in the extra bytes here if we're doing ipv6
if (inet_pton (AF_INET6, s, b) != 1) {
// FIXME: we *must* fill in the prefix bytes here if we're doing ipv6
#error Prefix bytes not set for parsing ipv4 addresses
#endif
i = inet_pton (AF_INET, s, b);
if (i == 1) {
if (mask == -1) {
if (!b[3]) { // FIXME: should check a cvar
if (!b[2]) {
if (!b[1]) {
if (!b[0]) {
mask = 0;
} else
mask = 8;
} else
mask = 16;
} else
mask = 24;
} else
mask = 32;
}
} else {
#ifdef HAVE_IPV6
i = inet_pton (AF_INET6, s, b);
#endif
}
if (i != 1)
c = s;
// parse for ipv4, as dotted quad, only we have implicit trailing segments
do {
int j;
if (*c == '.')
c++;
j = strtol (c, &c, 10);
if (j < 0 || j > 255)
goto bad_address;
if (i >= sizeof (b))
goto bad_address;
b[i++] = j;
} while (*c == '.');
if (*c)
goto bad_address;
// change trailing 0 segments to be a mask, eg 1.2.0.0 gives a /16 mask
// FIXME: should check a cvar
if (mask == -1) {
i = sizeof (b) - 1;
while (i >= 0 && !b[i]) {
mask += 8;
i--;
}
}
#ifdef HAVE_IPV6
}
#endif
#ifdef HAVE_IPV6
if (mask > 128)
@ -1249,7 +1258,10 @@ SV_StringToFilter (const char *address, ipfilter_t *f)
#endif
goto bad_address;
// incase they did 1.2.3.4/16, change it to 1.2.0.0 for easier comparison
SV_MaskIPTrim (b, mask);
// yada :)
f->mask = mask;
SV_IPCopy (f->ip, b);