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check return values from snprintf and clean up semantics of ret_len

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@14853 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2005-04-19 18:43:12 +00:00
parent c54ca3787e
commit a76ce26d04
1 changed files with 26 additions and 5 deletions
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31
lib/krb5/addr_families.c
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@@ -598,6 +598,8 @@ arange_print_addr (const krb5_address *addr, char *str, size_t len)
size = l;
ret = krb5_print_address (&a->low, str + size, len - size, &l);
if (ret)
return ret;
ret_len += l;
if (len - size > l)
size += l;
@@ -612,6 +614,8 @@ arange_print_addr (const krb5_address *addr, char *str, size_t len)
size = len;
ret = krb5_print_address (&a->high, str + size, len - size, &l);
if (ret)
return ret;
ret_len += l;
return ret_len;
@@ -659,9 +663,10 @@ arange_order_addr(krb5_context context,
static int
addrport_print_addr (const krb5_address *addr, char *str, size_t len)
{
krb5_error_code ret;
krb5_address addr1, addr2;
uint16_t port = 0;
size_t ret_len = 0, l;
size_t ret_len = 0, l, size = 0;
krb5_storage *sp = krb5_storage_from_data((krb5_data*)&addr->address);
/* for totally obscure reasons, these are not in network byteorder */
krb5_storage_set_byteorder(sp, KRB5_STORAGE_BYTEORDER_LE);
@@ -679,10 +684,24 @@ addrport_print_addr (const krb5_address *addr, char *str, size_t len)
}
l = strlcpy(str, "ADDRPORT:", len);
ret_len += l;
krb5_print_address(&addr1, str + ret_len, len - ret_len, &l);
ret_len += l;
l = snprintf(str + ret_len, len - ret_len, ",PORT=%u", port);
if (len > l)
size += l;
else
size = len;
ret = krb5_print_address(&addr1, str + size, len - size, &l);
if (ret)
return ret;
ret_len += l;
if (len - size > l)
size += l;
else
size = len;
ret = snprintf(str + size, len - size, ",PORT=%u", port);
if (ret < 0)
return EINVAL;
ret_len += ret;
return ret_len;
}
@@ -866,8 +885,8 @@ krb5_error_code KRB5_LIB_FUNCTION
krb5_print_address (const krb5_address *addr,
char *str, size_t len, size_t *ret_len)
{
size_t ret;
struct addr_operations *a = find_atype(addr->addr_type);
int ret;
if (a == NULL || a->print_addr == NULL) {
char *s;
@@ -892,6 +911,8 @@ krb5_print_address (const krb5_address *addr,
return 0;
}
ret = (*a->print_addr)(addr, str, len);
if (ret < 0)
return EINVAL;
if(ret_len != NULL)
*ret_len = ret;
return 0;