radcli_avp_list_error(3) Radius client library radcli_avp_list_error(3)

radcli_avp_list_error - Check whether any radcli_avp_add_*()/_by_num() call on list has ever failed.

#include <radcli/>

int radcli_avp_list_error(
    const radcli_avp_list  *list
);

Once any add call on a given list fails, the list remembers it (sticky the first failure, not just the most recent). This lets a caller build a whole request as a flat sequence of add calls with no per-call check, then check once, here, before sending instead of the ~6-line "if (radcli_avp_add_...(...) != 0) { log; abort; }" block repeated at every call site, which has only one realistic recovery action (abort the whole request) regardless of which attribute failed to add.

Purely observational: it does not change any radcli_avp_add_*()'s own behavior. Every add call is attempted and returns its own 0/-1 exactly as it would without this function existing, even after an earlier add on the same list has already failed a caller checking each call individually (or deliberately testing that one bad attribute is rejected before adding others, as tests/avp.c does) sees no difference. This function only adds a second, aggregate way to notice a failure that already happened, for a caller that would rather check once than at every call site.

the list to check; NULL counts as an error (nothing to build onto), matching how every radcli_avp_add_*() already treats a NULL list as failure so a caller does not need a separate if (list == NULL) check right after radcli_avp_list_new() before relying on this.

non-zero if list is NULL or any add call on it has ever failed, 0 otherwise.

radcli_avp_add_bytes(3), radcli_avp_add_bytes_by_num(3), radcli_avp_add_gigawords64(3), radcli_avp_add_gigawords64_by_num(3), radcli_avp_add_ip4(3), radcli_avp_add_ip4_by_num(3), radcli_avp_add_ip4prefix(3), radcli_avp_add_ip4prefix_by_num(3), radcli_avp_add_ip6(3), radcli_avp_add_ip6_by_num(3), radcli_avp_add_str(3), radcli_avp_add_str_by_num(3), radcli_avp_add_uint32(3), radcli_avp_add_uint32_by_num(3), radcli_avp_add_uint64(3), radcli_avp_add_uint64_by_num(3), radcli_avp_add_username(3), radcli_avp_concat_str(3), radcli_avp_concat_str_by_num(3), radcli_avp_def(3), radcli_avp_get(3), radcli_avp_get_by_num(3), radcli_avp_get_bytes(3), radcli_avp_get_bytes_by_num(3), radcli_avp_get_cstr(3), radcli_avp_get_cstr_by_num(3), radcli_avp_get_gigawords64(3), radcli_avp_get_gigawords64_by_num(3), radcli_avp_get_ip4prefix(3), radcli_avp_get_ip4prefix_by_num(3), radcli_avp_get_ip6(3), radcli_avp_get_ip6_by_num(3), radcli_avp_get_uint32(3), radcli_avp_get_uint32_by_num(3), radcli_avp_get_uint64(3), radcli_avp_get_uint64_by_num(3), radcli_avp_iter_next(3), radcli_avp_list_free(3), radcli_avp_list_iter(3), radcli_avp_list_new(3)

2026-09-03 radcli