ident: add NO_GECOS_IN_PWENT for systems without pw_gecos in struct passwd
Allow NO_GECOS_IN_PWENT to be defined in the Makefile for platforms that
lack the pw_gecos field in their "struct passwd", in which case the
uppercased user name is used instead via the standard '&' replacement
mechanism.
Signed-off-by: Rafael Gieschke <rafael@gieschke.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/ident.c b/ident.c
index 4232084..770b9e0 100644
--- a/ident.c
+++ b/ident.c
@@ -9,6 +9,12 @@
static char git_default_date[50];
+#ifdef NO_GECOS_IN_PWENT
+#define get_gecos(ignored) "&"
+#else
+#define get_gecos(struct_passwd) ((struct_passwd)->pw_gecos)
+#endif
+
static void copy_gecos(const struct passwd *w, char *name, size_t sz)
{
char *src, *dst;
@@ -20,7 +26,7 @@
* with commas. Also & stands for capitalized form of the login name.
*/
- for (len = 0, dst = name, src = w->pw_gecos; len < sz; src++) {
+ for (len = 0, dst = name, src = get_gecos(w); len < sz; src++) {
int ch = *src;
if (ch != '&') {
*dst++ = ch;
