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In network namespaces (like vdens https://github.com/rd235/vdens) it is sometimes necessary to define per-namespace resolver configurations. The simple patch here attached permits the definition of an environment variabile to define the path of the file to use instead of /etc/resolv.conf. e.g.: export PATH_RESCONF=/tmp/resolv.conf 2017-08-17 Renzo Davoli <renzo@cs.unibo.it> diff --git a/resolv/resolv.h b/resolv/resolv.h index e8c581ccd1..5e7a8143c3 100644 --- a/resolv/resolv.h +++ b/resolv/resolv.h @@ -91,7 +91,10 @@ */ #ifndef _PATH_RESCONF -#define _PATH_RESCONF "/etc/resolv.conf" +#define _PATH_RESCONF ({ \ + char *path_resconf = getenv("PATH_RESCONF"); \ + path_resconf ? path_resconf : "/etc/resolv.conf"; \ + }) #endif struct res_sym {
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