diff options
Diffstat (limited to 'resolv/resolv_context.h')
-rw-r--r-- | resolv/resolv_context.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/resolv/resolv_context.h b/resolv/resolv_context.h index 0f4d47d..e2f7ad6 100644 --- a/resolv/resolv_context.h +++ b/resolv/resolv_context.h @@ -112,6 +112,67 @@ __resolv_context_search_list (const struct resolv_context *ctx, size_t index) return NULL; } +/* Return the number of name servers. */ +static __attribute__ ((nonnull (1), unused)) size_t +__resolv_context_nameserver_count (const struct resolv_context *ctx) +{ + if (ctx->conf != NULL) + return ctx->conf->nameserver_list_size; + else + return ctx->resp->nscount; +} + +/* Return a pointer to the socket address of the name server INDEX, or + NULL if the index is out of bounds. */ +static __attribute__ ((nonnull (1), unused)) const struct sockaddr * +__resolv_context_nameserver (const struct resolv_context *ctx, size_t index) +{ + if (ctx->conf != NULL) + { + if (index < ctx->conf->nameserver_list_size) + return ctx->conf->nameserver_list[index]; + } + else + if (index < ctx->resp->nscount) + { + if (ctx->resp->nsaddr_list[index].sin_family != 0) + return (const struct sockaddr *) &ctx->resp->nsaddr_list[index]; + else + return (const struct sockaddr *) &ctx->resp->_u._ext.nsaddrs[index]; + } + return NULL; +} + +/* Return the number of sort list entries. */ +static __attribute__ ((nonnull (1), unused)) size_t +__resolv_context_sort_count (const struct resolv_context *ctx) +{ + if (ctx->conf != NULL) + return ctx->conf->sort_list_size; + else + return ctx->resp->nsort; +} + +/* Return the sort list entry at INDEX. */ +static __attribute__ ((nonnull (1), unused)) struct resolv_sortlist_entry +__resolv_context_sort_entry (const struct resolv_context *ctx, size_t index) +{ + if (ctx->conf != NULL) + { + if (index < ctx->conf->sort_list_size) + return ctx->conf->sort_list[index]; + /* Fall through. */ + } + else if (index < ctx->resp->nsort) + return (struct resolv_sortlist_entry) + { + .addr = ctx->resp->sort_list[index].addr, + .mask = ctx->resp->sort_list[index].mask, + }; + + return (struct resolv_sortlist_entry) { .mask = 0, }; +} + /* Called during thread shutdown to free the associated resolver context (mostly in response to cancellation, otherwise the __resolv_context_get/__resolv_context_put pairing will already have |