More tweaks on Linux and Solaris.

src/lib9/_p9dir.c

@@ -4,13 +4,19 @@
 
 #include <sys/types.h>
 #include <sys/stat.h>
-#ifdef _HAVEDISKLABEL
-#include <sys/disklabel.h>
-#endif
 #include <dirent.h>
 #include <pwd.h>
 #include <grp.h>
 
+#if defined(__FreeBSD__)
+#include <sys/disklabel.h>
+#define _HAVEDISKLABEL
+#endif
+
+#if !defined(__linux__) && !defined(__sun__)
+#define _HAVESTGEN
+#endif
+
 int
 _p9dir(struct stat *st, char *name, Dir *d, char **str, char *estr)
 {

src/lib9/date.c

@@ -1,19 +1,25 @@
 #include <stdlib.h> /* setenv etc. */
 
 #include <u.h>
+#define NOPLAN9DEFINES
 #include <libc.h>
-
-#undef gmtime
-#undef localtime
-#undef asctime
-#undef ctime
-#undef cputime
-#undef times
-#undef tm2sec
-#undef nsec
-
 #include <time.h>
 
+#define _HAVETIMEGM 1
+#define _HAVETMZONE 1
+#define _HAVETMTZOFF 1
+
+#if defined(__linux__)
+#	undef _HAVETMZONE
+#	undef _HAVETMTZOFF
+
+#elif defined(__sun__)
+#	undef _HAVETIMEGM
+#	undef _HAVETMZONE
+#	undef _HAVETMTZOFF
+
+#endif
+
 static Tm bigtm;
 
 static void
@@ -80,15 +86,17 @@ timegm(struct tm *tm)
 {
 	time_t ret;
 	char *tz;
+	char *s;
 
 	tz = getenv("TZ");
-	setenv("TZ", "", 1);
+	putenv("TZ=");
 	tzset();
 	ret = mktime(tm);
-	if(tz)
-		setenv("TZ", tz, 1);
-	else
-		unsetenv("TZ");
+	if(tz){
+		s = smprint("TZ=%s", tz);
+		if(s)
+			putenv(s);
+	}
 	return ret;
 }
 #endif

src/lib9/dirfwstat.c

@@ -1,22 +1,30 @@
 #include <u.h>
-#define NOPLAN9DEFINES
 #include <libc.h>
-
 #include <sys/time.h>
 
-#if !defined(_HAVEFUTIMES) && defined(_HAVEFUTIMESAT)
+#if defined(__FreeBSD__) || defined(__APPLE__)
+/* do nothing -- futimes exists and is fine */
+
+#elif defined(__sun__)
+/* use futimesat */
 static int
 futimes(int fd, struct timeval *tv)
 {
 	return futimesat(fd, 0, tv);
 }
-#elif !defined(_HAVEFUTIMES)
+
+#else
+/* provide dummy */
+/* rename just in case -- linux provides an unusable one */
+#undef futimes
+#define futimes myfutimes
 static int
 futimes(int fd, struct timeval *tv)
 {
 	werrstr("futimes not available");
 	return -1;
 }
+
 #endif
 
 int
@@ -25,6 +33,7 @@ dirfwstat(int fd, Dir *dir)
 	int ret;
 	struct timeval tv[2];
 
+	ret = 0;
 	if(~dir->mode != 0){
 		if(fchmod(fd, dir->mode) < 0)
 			ret = -1;

src/lib9/dirread.c

@@ -6,19 +6,39 @@
 
 extern int _p9dir(struct stat*, char*, Dir*, char**, char*);
 
-/* almost everyone has getdirentries, just use that */
+#if defined(__linux__)
 static int
-mygetdents(int fd, char *buf, int n)
+mygetdents(int fd, struct dirent *buf, int n)
+{
+	ssize_t nn;
+	off_t off;
+
+	off = p9seek(fd, 0, 1);
+	nn = getdirentries(fd, (void*)buf, n, &off);
+	if(nn > 0)
+		p9seek(fd, off, 0);
+	return nn;
+}
+#elif defined(__APPLE__) || defined(__FreeBSD__)
+static int
+mygetdents(int fd, struct dirent *buf, int n)
 {
 	ssize_t nn;
 	long off;
 
 	off = p9seek(fd, 0, 1);
-	nn = getdirentries(fd, buf, n, &off);
+	nn = getdirentries(fd, (void*)buf, n, &off);
 	if(nn > 0)
 		p9seek(fd, off, 0);
 	return nn;
 }
+#elif defined(__sun__)
+static int
+mygetdents(int fd, struct dirent *buf, int n)
+{
+	return getdents(fd, (void*)buf, n);
+}
+#endif	
 
 static int
 countde(char *p, int n)

src/lib9/dirwstat.c

@@ -1,7 +1,6 @@
 #include <u.h>
 #define NOPLAN9DEFINES
 #include <libc.h>
-
 #include <sys/time.h>
 #include <utime.h>