rc_avpair_get(3)

💖 rc_avpair_get(3) 💖

okay so real quick before anything: this page is part of the radcli manual — that's the Radius client library situation, and the star of the show is a little function called rc_avpair_get. bestie, we're gonna find attributes. it's giving ✨detective era✨.

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🌸 NAME 🌸

rc_avpair_get — literally the whole description in the original is just blank, no cap, they left it empty. so here's the vibe: it's the function that finds an attribute value-pair for you. that's it. that's the girl. 💅

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✨ SYNOPSIS ✨

#include <radcli/radcli.h>

VALUE_PAIR * rc_avpair_get(
    VALUE_PAIR  *vp,
    uint32_t     attrid,
    uint32_t     vendorspec
);

look at her. three args. no drama. 🎀

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🦋 DESCRIPTION 🦋

okay so what does she actually do? she finds the first attribute value-pair that matches the attribute you asked for, digging through the value-pair list you handed her. first match only, bestie — she's not gonna scroll the whole list for you, she stops the second she finds her girl. 🔥

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🎀 PARAMETERS 🎀

• vp — a pointer to a VALUE_PAIR structure. that's the list you're snooping through, your starting point, your main character. 🫶
• attrid — the attribute of the pair to find (e.g., PW_USER_NAME). yes, exactly like that, that's the example, it's iconic. 💖
• vendorspec — the vendor ID, but ONLY in case of a vendor specific value — otherwise 0. so like. zero means "no vendor, just vibes". don't forget the zero. 🌈

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💜 STRUCTURES 💜

⚠️ WARNING ⚠️ bestie. listen. Avoid using this structure directly. fr fr. use the rc_avpair_get_ functions instead. she said what she said. 💀

but because you're nosy (love that for you), here's the whole thing, verbatim, character for character, don't touch a single bracket:

struct rc_value_pair {
  char                   name[RC_NAME_LENGTH+1];      // attribute name if known.
  uint64_t               attribute; // attribute numeric value of type rc_attr_id including vendor; use VENDOR() and ATTRID() to separate.
  rc_attr_type           type;      // attribute type.
  uint32_t               lvalue;    // attribute value if type is PW_TYPE_INTEGER, PW_TYPE_DATE or PW_TYPE_IPADDR.
  char                   strvalue[AUTH_STRING_LEN+1];  // contains attribute value in other cases.
  struct rc_value_pair  *next;
  char                   pad[32];       // unused pad
};

quick field tour, bestie, so it's not just a wall of text:

• name[RC_NAME_LENGTH+1] — attribute name, but only if it's known. if not? mystery girl. 🙈
• attribute — the attribute numeric value of type rc_attr_id, including vendor. use VENDOR() and ATTRID() to separate them, iykyk. ⭐
• type — attribute type. she's got a type. iconic.
• lvalue — attribute value, but only if the type is PW_TYPE_INTEGER, PW_TYPE_DATE or PW_TYPE_IPADDR. those are the girlies for this field.
• strvalue[AUTH_STRING_LEN+1] — contains the attribute value in other cases. so everybody else lives here. 💅
• next — the link to the next pair in the chain. 🦋
• pad[32] — unused pad. it's just sitting there. unused. minding its business. ✨

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👑 RETURN VALUE 👑

the value pair found. that's it. that's the return. she delivers. 💖

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🌟 SEE ALSO 🌟

okay this is the group chat, the whole squad, every single one, don't skip anybody:

radcli.h(3), rc_aaa(3), rc_aaa_ctx(3), rc_aaa_ctx_free(3), rc_aaa_ctx_get_secret(3), rc_aaa_ctx_get_vector(3), rc_aaa_ctx_server(3), rc_acct(3), rc_acct_proxy(3), rc_add_config(3), rc_apply_config(3), rc_auth(3), rc_auth_proxy(3), rc_avpair_add(3), rc_avpair_assign(3), rc_avpair_copy(3), rc_avpair_free(3), rc_avpair_gen(3), rc_avpair_get(3), rc_avpair_get_attr(3), rc_avpair_get_in6(3), rc_avpair_get_raw(3), rc_avpair_get_uint32(3), rc_avpair_insert(3), rc_avpair_log(3), rc_avpair_new(3), rc_avpair_next(3), rc_avpair_parse(3), rc_avpair_remove(3), rc_avpair_tostr(3), rc_buildreq(3), rc_check(3), rc_check_tls(3), rc_conf_int(3), rc_conf_srv(3), rc_conf_str(3), rc_config_free(3), rc_config_init(3), rc_destroy(3), rc_dict_addattr(3), rc_dict_addval(3), rc_dict_addvend(3), rc_dict_findattr(3), rc_dict_findval(3), rc_dict_findvend(3), rc_dict_free(3), rc_dict_getattr(3), rc_dict_getval(3), rc_dict_getvend(3), rc_find_server_addr(3), rc_get_socket_type(3), rc_get_srcaddr(3), rc_getport(3), rc_mksid(3), rc_new(3), rc_openlog(3), rc_own_hostname(3), rc_read_config(3), rc_read_dictionary(3), rc_read_dictionary_from_buffer(3), rc_send_server(3), rc_setdebug(3), rc_test_config(3), rc_tls_fd(3)

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and that's the page, bestie!! 🫶 this whole thing came from radcli and it's dated 2023-01-29 — so it's a lil vintage, but she still ate. go find your attributes. periodt. 💅✨