uname: make OS name configurable

A mailing list thread in September 2013 discussed changing the string
returned by the non-POSIX 'uname -o' option.  Nothing ever came of this
because there was no agreement as to what the string should be.

Make the string configurable so that people can decide for themselves.

Signed-off-by: Ron Yorston <rmy@frippery.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

2 files changed, 10 insertions, 2 deletions

diff --git a/coreutils/Config.src b/coreutils/Config.src
index 02155d220..ffbef1a31 100644
--- a/coreutils/Config.src
+++ b/coreutils/Config.src
@@ -630,6 +630,14 @@ config UNAME
         help
           uname is used to print system information.
 
+config UNAME_OSNAME
+        string "Operating system name"
+        default "GNU/Linux"
+        depends on UNAME
+        help
+          Sets the operating system name reported by uname -o.  The
+          default is "GNU/Linux".
+
 config UNEXPAND
         bool "unexpand"
         default y
diff --git a/coreutils/uname.c b/coreutils/uname.c
index 1c6aa5f79..fd677d27c 100644
--- a/coreutils/uname.c
+++ b/coreutils/uname.c
@@ -74,7 +74,7 @@ typedef struct {
         struct utsname name;
         char processor[sizeof(((struct utsname*)NULL)->machine)];
         char platform[sizeof(((struct utsname*)NULL)->machine)];
-        char os[sizeof("GNU/Linux")];
+        char os[sizeof(CONFIG_UNAME_OSNAME)];
 } uname_info_t;
 
 static const char options[] ALIGN1 = "snrvmpioa";
@@ -141,7 +141,7 @@ int uname_main(int argc UNUSED_PARAM, char **argv)
 #endif
         strcpy(uname_info.processor, unknown_str);
         strcpy(uname_info.platform, unknown_str);
-        strcpy(uname_info.os, "GNU/Linux");
+        strcpy(uname_info.os, CONFIG_UNAME_OSNAME);
 #if 0
         /* Fedora does something like this */
         strcpy(uname_info.processor, uname_info.name.machine);