Some updates for better portability.

-Erik

Makefile

@@ -31,6 +31,12 @@ DODEBUG = false
 # If you want a static binary, turn this on.
 DOSTATIC = false
 
+# To compile vs an alternative libc, you may need to use/adjust
+# the following lines to meet your needs.  This is how I did it...
+#CFLAGS+=-nostdinc -I/home/andersen/CVS/uC-libc/include -I/usr/include/linux
+#LDFLAGS+=-nostdlib -L/home/andersen/CVS/libc.a
+
+
 CC = gcc
 
 # use '-Os' optimization if available, else use -O2
@@ -43,10 +49,6 @@ ifndef $(STRIPTOOL)
     STRIPTOOL = strip
 endif
 
-# TODO: Try compiling vs other libcs.  
-# See what -nostdinc and -nostdlib do for them.
-# also try --prefix=/usr/my-libc-stuff
-
 # -D_GNU_SOURCE is needed because environ is used in init.c
 ifeq ($(DODEBUG),true)
     CFLAGS += -Wall -g -D_GNU_SOURCE
@@ -65,11 +67,10 @@ else
 	#want to give it a shot...
 	#
 	#ifeq ($(shell $(CC) -ffunction-sections -fdata-sections -S \
-	#	-o /dev/null -xc /dev/null && $(LD) --gc-sections -v >/dev/null && echo 1),1)
-	#    CFLAGS += -ffunction-sections -fdata-sections -DFUNCTION_SECTIONS
+	#	-o /dev/null -xc /dev/null 2>/dev/null && $(LD) --gc-sections -v >/dev/null && echo 1),1)
+	#	CFLAGS += -ffunction-sections -fdata-sections
 	#	LDFLAGS += --gc-sections
 	#endif
-	#
     endif
 endif
 
@@ -77,6 +78,7 @@ ifndef $(PREFIX)
     PREFIX = `pwd`/_install
 endif
 
+
 LIBRARIES =
 OBJECTS   = $(shell ./busybox.sh) busybox.o messages.o utility.o
 CFLAGS    += -DBB_VER='"$(VERSION)"'

coreutils/date.c

@@ -181,7 +181,7 @@ int date_main(int argc, char **argv)
 					set_time = 1;
 					if (date_str != NULL)
 						usage(date_usage);
-					date_str = optarg;
+					date_str = *argv;
 					break;
 				case 'u':
 					utc = 1;
@@ -192,7 +192,7 @@ int date_main(int argc, char **argv)
 					use_arg = 1;
 					if (date_str != NULL)
 						usage(date_usage);
-					date_str = optarg;
+					date_str = *argv;
 					break;
 				case '-':
 					usage(date_usage);

date.c

@@ -181,7 +181,7 @@ int date_main(int argc, char **argv)
 					set_time = 1;
 					if (date_str != NULL)
 						usage(date_usage);
-					date_str = optarg;
+					date_str = *argv;
 					break;
 				case 'u':
 					utc = 1;
@@ -192,7 +192,7 @@ int date_main(int argc, char **argv)
 					use_arg = 1;
 					if (date_str != NULL)
 						usage(date_usage);
-					date_str = optarg;
+					date_str = *argv;
 					break;
 				case '-':
 					usage(date_usage);

dutmp.c

@@ -8,22 +8,20 @@
  * versions of 'who', 'last', etc. IP Addr is output in hex, 
  * little endian on x86.
  * 
- * made against libc6
+ * Modified to support all sort of libcs by 
+ * Erik Andersen <andersen@lineo.com>
  */
 
 #include "internal.h"
-#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
 #include <errno.h>
 #define BB_DECLARE_EXTERN
 #define bb_need_io_error
 #include "messages.c"
-
-#if defined(__GLIBC__)
 #include <utmp.h>
-#else
-#include <utmp-wrap.h>
-#define utmp new_utmp
-#endif
 
 
 static const char dutmp_usage[] = "dutmp [FILE]\n"
@@ -36,27 +34,26 @@ static const char dutmp_usage[] = "dutmp [FILE]\n"
 extern int dutmp_main(int argc, char **argv)
 {
 
-	FILE *f;
+	int file;
 	struct utmp ut;
 
 	if (argc<2) {
-		f = stdin;
+		file = fileno(stdin);
 	} else if (*argv[1] == '-' ) {
 		usage(dutmp_usage);
 	} else  {
-		f = fopen(argv[1], "r");
-		if (f == NULL) {
+		file = open(argv[1], O_RDONLY);
+		if (file < 0) {
 			fatalError(io_error, argv[1], strerror(errno));
 		}
 	}
 
-	while (fread(&ut, sizeof(struct utmp), 1, f)) {
-		printf("%d|%d|%s|%s|%s|%s|%d|%d|%ld|%ld|%ld|%x\n",
+	while (read(file, (void*)&ut, sizeof(struct utmp))) {
+		printf("%d|%d|%s|%s|%s|%s|%s|%lx\n",
 				ut.ut_type, ut.ut_pid, ut.ut_line,
 				ut.ut_id, ut.ut_user, ut.ut_host,
-			   ut.ut_exit.e_termination, ut.ut_exit.e_exit,
-			   ut.ut_session, ut.ut_tv.tv_sec, ut.ut_tv.tv_usec, 
-			   ut.ut_addr_v6[0]);
+				ctime(&(ut.ut_time)), 
+				(long)ut.ut_addr);
 	}
 
 	exit(TRUE);

miscutils/dutmp.c

@@ -8,22 +8,20 @@
  * versions of 'who', 'last', etc. IP Addr is output in hex, 
  * little endian on x86.
  * 
- * made against libc6
+ * Modified to support all sort of libcs by 
+ * Erik Andersen <andersen@lineo.com>
  */
 
 #include "internal.h"
-#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
 #include <errno.h>
 #define BB_DECLARE_EXTERN
 #define bb_need_io_error
 #include "messages.c"
-
-#if defined(__GLIBC__)
 #include <utmp.h>
-#else
-#include <utmp-wrap.h>
-#define utmp new_utmp
-#endif
 
 
 static const char dutmp_usage[] = "dutmp [FILE]\n"
@@ -36,27 +34,26 @@ static const char dutmp_usage[] = "dutmp [FILE]\n"
 extern int dutmp_main(int argc, char **argv)
 {
 
-	FILE *f;
+	int file;
 	struct utmp ut;
 
 	if (argc<2) {
-		f = stdin;
+		file = fileno(stdin);
 	} else if (*argv[1] == '-' ) {
 		usage(dutmp_usage);
 	} else  {
-		f = fopen(argv[1], "r");
-		if (f == NULL) {
+		file = open(argv[1], O_RDONLY);
+		if (file < 0) {
 			fatalError(io_error, argv[1], strerror(errno));
 		}
 	}
 
-	while (fread(&ut, sizeof(struct utmp), 1, f)) {
-		printf("%d|%d|%s|%s|%s|%s|%d|%d|%ld|%ld|%ld|%x\n",
+	while (read(file, (void*)&ut, sizeof(struct utmp))) {
+		printf("%d|%d|%s|%s|%s|%s|%s|%lx\n",
 				ut.ut_type, ut.ut_pid, ut.ut_line,
 				ut.ut_id, ut.ut_user, ut.ut_host,
-			   ut.ut_exit.e_termination, ut.ut_exit.e_exit,
-			   ut.ut_session, ut.ut_tv.tv_sec, ut.ut_tv.tv_usec, 
-			   ut.ut_addr_v6[0]);
+				ctime(&(ut.ut_time)), 
+				(long)ut.ut_addr);
 	}
 
 	exit(TRUE);

miscutils/mt.c

@@ -61,7 +61,7 @@ extern int mt_main(int argc, char **argv)
 	struct mtop op;
 	int fd;
 	
-	if ((argc != 2 && argc != 3) || **(argv + 1) == '-') {
+	if ((argc != 2 && argc != 3) && **(argv + 1) != '-') {
 		usage(mt_usage);
 	}
 

mt.c

@@ -61,7 +61,7 @@ extern int mt_main(int argc, char **argv)
 	struct mtop op;
 	int fd;
 	
-	if ((argc != 2 && argc != 3) || **(argv + 1) == '-') {
+	if ((argc != 2 && argc != 3) && **(argv + 1) != '-') {
 		usage(mt_usage);
 	}