.\" File automatically generated by doxy2man0.3
.\" Generation date: Thu Sep 3 2026
.TH radcli_avp_concat_str_by_num 3 2026-09-03 "radcli" "Radius client library"
.SH "NAME"
radcli_avp_concat_str_by_num \- Look up an attribute by legacy numeric ID and concatenate every occurrence into a bounded buffer.
.SH SYNOPSIS
.nf
.B #include <radcli/>
.sp
\fBint radcli_avp_concat_str_by_num\fP(
    \fBchar                   *\fP\fIbuf\fP,
    \fBsize_t                  \fP\fIbuflen\fP,
    \fBconst radcli_avp_list  *\fP\fIlist\fP,
    \fBconst radcli_ctx       *\fP\fIctx\fP,
    \fBuint32_t                \fP\fIattrid\fP,
    \fBuint32_t                \fP\fIvendor\fP,
    \fBconst char             *\fP\fIsep\fP
);
.fi
.SH DESCRIPTION
.PP 
The _by_num() wrapper for radcli_avp_concat_str(): equivalent to radcli_avp_concat_str(buf, buflen, l, radcli_dict_lookup_num(ctx, attrid,
.PP 
vendor), sep), except that an unresolvable attribute ID is not itself a failure here  it is treated the same as "no occurrence present" (buf set to an empty string, 0 returned), matching this function's legacy-ID convenience role: a caller passing a well-known PW_* constant should not have to separately handle "not in this dictionary" as an error case, the same way rc_aaa()'s msg never failed just because a reply had no Reply-Message.
.SH PARAMETERS
.TP
.B buf
destination buffer, or NULL to only compute the needed size; see radcli_avp_concat_str(). 

.TP
.B buflen
size of buf, in bytes; may be 0. 

.TP
.B list
the list to search. 

.TP
.B ctx
a context with a dictionary loaded. 

.TP
.B attrid
the attribute ID (a PW_* constant, or a vendor type ID when vendor is non-zero). 

.TP
.B vendor
the vendor PEN, or 0 for a standard attribute. 

.TP
.B sep
separator inserted between occurrences; NULL or "" for none. 

.SH RETURN VALUE
.PP
the number of bytes the joined result occupies (excluding the NUL terminator), whether or not it fit in buf; 0 if attrid/vendor resolves to no attribute. 
.SH SEE ALSO
.PP
.nh
.ad l
\fIradcli_avp_add_bytes\fP(3), \fIradcli_avp_add_bytes_by_num\fP(3), \fIradcli_avp_add_gigawords64\fP(3), \fIradcli_avp_add_gigawords64_by_num\fP(3), \fIradcli_avp_add_ip4\fP(3), \fIradcli_avp_add_ip4_by_num\fP(3), \fIradcli_avp_add_ip4prefix\fP(3), \fIradcli_avp_add_ip4prefix_by_num\fP(3), \fIradcli_avp_add_ip6\fP(3), \fIradcli_avp_add_ip6_by_num\fP(3), \fIradcli_avp_add_str\fP(3), \fIradcli_avp_add_str_by_num\fP(3), \fIradcli_avp_add_uint32\fP(3), \fIradcli_avp_add_uint32_by_num\fP(3), \fIradcli_avp_add_uint64\fP(3), \fIradcli_avp_add_uint64_by_num\fP(3), \fIradcli_avp_add_username\fP(3), \fIradcli_avp_concat_str\fP(3), \fIradcli_avp_def\fP(3), \fIradcli_avp_get\fP(3), \fIradcli_avp_get_by_num\fP(3), \fIradcli_avp_get_bytes\fP(3), \fIradcli_avp_get_bytes_by_num\fP(3), \fIradcli_avp_get_cstr\fP(3), \fIradcli_avp_get_cstr_by_num\fP(3), \fIradcli_avp_get_gigawords64\fP(3), \fIradcli_avp_get_gigawords64_by_num\fP(3), \fIradcli_avp_get_ip4prefix\fP(3), \fIradcli_avp_get_ip4prefix_by_num\fP(3), \fIradcli_avp_get_ip6\fP(3), \fIradcli_avp_get_ip6_by_num\fP(3), \fIradcli_avp_get_uint32\fP(3), \fIradcli_avp_get_uint32_by_num\fP(3), \fIradcli_avp_get_uint64\fP(3), \fIradcli_avp_get_uint64_by_num\fP(3), \fIradcli_avp_iter_next\fP(3), \fIradcli_avp_list_error\fP(3), \fIradcli_avp_list_free\fP(3), \fIradcli_avp_list_iter\fP(3), \fIradcli_avp_list_new\fP(3)
.ad
.hy