pppd.8: Document netmask option

[ppp.git] / pppd / plugins / radius / avpair.c

diff --git a/pppd/plugins/radius/avpair.c b/pppd/plugins/radius/avpair.c
index 716d23f2efb7df7c9c059b1f592339c189730976..bbe141d2d80acdc439307430c8916371c3e0e362 100644 (file)
--- a/pppd/plugins/radius/avpair.c
+++ b/pppd/plugins/radius/avpair.c
@@ -31,7 +31,7 @@ static void rc_extract_vendor_specific_attributes(int attrlen,
  *
  */
 
-VALUE_PAIR *rc_avpair_add (VALUE_PAIR **list, int attrid, void *pval, int len,
+VALUE_PAIR *rc_avpair_add (VALUE_PAIR **list, int attrid, const void *pval, int len,
                           int vendorcode)
 {
        VALUE_PAIR     *vp;
@@ -57,7 +57,7 @@ VALUE_PAIR *rc_avpair_add (VALUE_PAIR **list, int attrid, void *pval, int len,
  *
  */
 
-int rc_avpair_assign (VALUE_PAIR *vp, void *pval, int len)
+int rc_avpair_assign (VALUE_PAIR *vp, const void *pval, int len)
 {
        int     result = -1;
 
@@ -65,19 +65,19 @@ int rc_avpair_assign (VALUE_PAIR *vp, void *pval, int len)
        {
                case PW_TYPE_STRING:
 
-                       if (((len == 0) && (strlen ((char *) pval)) > AUTH_STRING_LEN)
+                       if (((len == 0) && (strlen ((const char *) pval)) > AUTH_STRING_LEN)
                            || (len > AUTH_STRING_LEN)) {
                                error("rc_avpair_assign: bad attribute length");
                                return result;
                    }
 
                        if (len > 0) {
-                               memcpy(vp->strvalue, (char *)pval, len);
+                               memcpy(vp->strvalue, (const char *)pval, len);
                                vp->strvalue[len] = '\0';
                                vp->lvalue = len;
                        } else {
-                       strncpy (vp->strvalue, (char *) pval, AUTH_STRING_LEN);
-                       vp->lvalue = strlen((char *) pval);
+                       strncpy ((char*) vp->strvalue, (const char *) pval, AUTH_STRING_LEN);
+                       vp->lvalue = strlen((const char *) pval);
                        }
 
                        result = 0;
@@ -107,7 +107,7 @@ int rc_avpair_assign (VALUE_PAIR *vp, void *pval, int len)
  *
  */
 
-VALUE_PAIR *rc_avpair_new (int attrid, void *pval, int len, int vendorcode)
+VALUE_PAIR *rc_avpair_new (int attrid, const void *pval, int len, int vendorcode)
 {
        VALUE_PAIR     *vp = (VALUE_PAIR *) NULL;
        DICT_ATTR      *pda;
@@ -121,7 +121,7 @@ VALUE_PAIR *rc_avpair_new (int attrid, void *pval, int len, int vendorcode)
                if ((vp = (VALUE_PAIR *) malloc (sizeof (VALUE_PAIR)))
                                                        != (VALUE_PAIR *) NULL)
                {
-                       strncpy (vp->name, pda->name, sizeof (vp->name));
+                       strlcpy (vp->name, pda->name, NAME_LENGTH);
                        vp->attribute = attrid;
                        vp->vendorcode = vendorcode;
                        vp->next = (VALUE_PAIR *) NULL;
@@ -161,7 +161,7 @@ VALUE_PAIR *rc_avpair_gen (AUTH_HDR *auth)
        DICT_ATTR      *attr;
        VALUE_PAIR     *vp;
        VALUE_PAIR     *pair;
-       unsigned char   hex[3];         /* For hex string conversion. */
+       char            hex[3];         /* For hex string conversion. */
        char            buffer[512];
 
        /*
@@ -175,12 +175,12 @@ VALUE_PAIR *rc_avpair_gen (AUTH_HDR *auth)
        {
                attribute = *ptr++;
                attrlen = *ptr++;
-               attrlen -= 2;
-               if (attrlen < 0)
+               if (attrlen < 2 || attrlen > length)
                {
                        error("rc_avpair_gen: received attribute with invalid length");
                        break;
                }
+               attrlen -= 2;
 
                /* Handle vendor-specific specially */
                if (attribute == PW_VENDOR_SPECIFIC) {
@@ -222,6 +222,9 @@ VALUE_PAIR *rc_avpair_gen (AUTH_HDR *auth)
                        {
 
                            case PW_TYPE_STRING:
+                           case PW_TYPE_IFID:
+                           case PW_TYPE_IPV6ADDR:
+                           case PW_TYPE_IPV6PREFIX:
                                memcpy (pair->strvalue, (char *) ptr, (size_t) attrlen);
                                pair->strvalue[attrlen] = '\0';
                                pair->lvalue = attrlen;
@@ -423,7 +426,7 @@ void rc_avpair_insert (VALUE_PAIR **a, VALUE_PAIR *p, VALUE_PAIR *b)
        else /* look for the "p" entry in the "a" list (or run to end) */
        {
                this_node = *a;
-               while (this_node != (VALUE_PAIR *) NULL)
+               while (this_node->next != (VALUE_PAIR *) NULL)
                {
                        if (this_node == p)
                        {
@@ -597,7 +600,7 @@ int rc_avpair_parse (char *buffer, VALUE_PAIR **first_pair)
                        {
 
                            case PW_TYPE_STRING:
-                               strcpy (pair->strvalue, valstr);
+                               strcpy ((char*) pair->strvalue, valstr);
                                pair->lvalue = strlen(valstr);
                                break;
 
@@ -692,9 +695,10 @@ int rc_avpair_parse (char *buffer, VALUE_PAIR **first_pair)
 int rc_avpair_tostr (VALUE_PAIR *pair, char *name, int ln, char *value, int lv)
 {
        DICT_VALUE     *dval;
-       char            buffer[32];
+       char            buffer[INET6_ADDRSTRLEN + 4]; // for a prefix: addr + '/' + prefixlen
        struct in_addr  inad;
        unsigned char         *ptr;
+       char            *str;
 
        *name = *value = '\0';
 
@@ -721,7 +725,7 @@ int rc_avpair_tostr (VALUE_PAIR *pair, char *name, int ln, char *value, int lv)
                        }
                        else
                        {
-                               strncat(value, ptr, 1);
+                               strncat(value, (char*) ptr, 1);
                                lv--;
                                if (lv < 0) break;
                        }
@@ -737,7 +741,7 @@ int rc_avpair_tostr (VALUE_PAIR *pair, char *name, int ln, char *value, int lv)
                }
                else
                {
-                       sprintf (buffer, "%ld", pair->lvalue);
+                       sprintf (buffer, "%d", pair->lvalue);
                        strncpy(value, buffer, (size_t) lv);
                }
                break;
@@ -753,6 +757,26 @@ int rc_avpair_tostr (VALUE_PAIR *pair, char *name, int ln, char *value, int lv)
                strncpy(value, buffer, lv-1);
                break;
 
+           case PW_TYPE_IFID:
+               ptr = pair->strvalue;
+               snprintf(buffer, sizeof (buffer), "%x:%x:%x:%x",
+                        (ptr[0] << 8) + ptr[1], (ptr[2] << 8) + ptr[3],
+                        (ptr[4] << 8) + ptr[5], (ptr[6] << 8) + ptr[7]);
+               strncpy(value, buffer, lv-1);
+               break;
+
+           case PW_TYPE_IPV6ADDR:
+               inet_ntop(AF_INET6, pair->strvalue, buffer, sizeof (buffer));
+               strncpy(value, buffer, lv-1);
+               break;
+
+           case PW_TYPE_IPV6PREFIX:
+               inet_ntop(AF_INET6, pair->strvalue + 2, buffer, sizeof (buffer));
+               str = buffer + strlen(buffer);
+               snprintf(str, sizeof (buffer) - (str - buffer), "/%d", *(pair->strvalue + 1));
+               strncpy(value, buffer, lv-1);
+               break;
+
            default:
                error("rc_avpair_tostr: unknown attribute type %d", pair->type);
                return (-1);