Fix a bug, ignore the source path when installing to a directory.

We may be installing symlinks, so use lstat/lchown.
Make use of bb_getopt_ulflags and cp_mv_stat2, save 100 bytes.

1 files changed, 41 insertions, 45 deletions

diff --git a/coreutils/install.c b/coreutils/install.c
index 95bb59463..9a1306746 100644
--- a/coreutils/install.c
+++ b/coreutils/install.c
@@ -18,8 +18,6 @@
  *
  * TODO: -d option, need a way of recursively making directories and changing
  *           owner/group, will probably modify bb_make_directory(...)
- *       Use bb_getopt_ulflags(...) ?
- *
  */
 
 #include <sys/stat.h>
@@ -30,50 +28,51 @@
 #include <string.h>
 #include <unistd.h>
 
-#include "libbb.h"
+#include "busybox.h"
+#include "libcoreutils/coreutils.h"
+
+#define INSTALL_OPT_CMD	1
+#define INSTALL_OPT_DIRECTORY	2
+#define INSTALL_OPT_PRESERVE_TIME	4
+#define INSTALL_OPT_STRIP	8
+#define INSTALL_OPT_GROUP  16
+#define INSTALL_OPT_MODE  32
+#define INSTALL_OPT_OWNER  64
 
 extern int install_main(int argc, char **argv)
 {
 	struct stat statbuf;
-	int i;
-	int ret = EXIT_SUCCESS;
+	mode_t mode = 0755;
 	uid_t uid = -1;
 	gid_t gid = -1;
-	int copy_flags = 0;
-	int strip_flag = 0;
-	int dir_flag = 0;
-	mode_t mode = 0755;
+	char *gid_str;
+	char *uid_str;
+	char *mode_str;
+	int copy_flags = FILEUTILS_DEREFERENCE | FILEUTILS_FORCE;
+	int ret = EXIT_SUCCESS;
+	int flags;
+	int i;
 
 	/* -c exists for backwards compatability, its needed */
-	while ((i = getopt(argc, argv, "cdg:m:o:ps")) != -1) {
-		switch (i) {
-		case 'd':	/* Create directories */
-			dir_flag = 1;
-			break;
-		case 'g':	/* group */
-			gid = get_ug_id(optarg, my_getgrnam);
-			break;
-		case 'm':	/* mode */
-			bb_parse_mode(optarg, &mode);
-			break;
-		case 'o':	/* owner */
-			uid = get_ug_id(optarg, my_getpwnam);
-			break;
-		case 'p':	/* preserve access and modification time, this is GNU behaviour, BSD only preserves modification time */
-			copy_flags |= FILEUTILS_PRESERVE_STATUS;
-			break;
-		case 's':	/* Strip binaries */
-			strip_flag = 1;
-			/* Fall through */
-		case 'c':
-			/* do nothing */
-			break;
-		default:
-			bb_show_usage();
-		}
+	flags = bb_getopt_ulflags(argc, argv, "cdpsg:m:o:", &gid_str, &mode_str, &uid_str);	/* 'a' must be 2nd */
+
+	/* preserve access and modification time, this is GNU behaviour, BSD only preserves modification time */
+	if (flags & INSTALL_OPT_PRESERVE_TIME) {
+		copy_flags |= FILEUTILS_PRESERVE_STATUS;
+	}
+	if (flags & INSTALL_OPT_GROUP) {
+		gid = get_ug_id(gid_str, my_getgrnam);
+	}
+	if (flags & INSTALL_OPT_MODE) {
+		bb_parse_mode(mode_str, &mode);
+	}
+	if (flags & INSTALL_OPT_OWNER) {
+		uid = get_ug_id(uid_str, my_getpwnam);
 	}
 
-	if (dir_flag) {
+	/* Create directories */
+	if (flags & INSTALL_OPT_DIRECTORY) {
+	
 		for (argv += optind; *argv; argv++) {
 			unsigned char *dir_name = *argv;
 			unsigned char *argv_ptr;
@@ -86,7 +85,7 @@ extern int install_main(int argc, char **argv)
 				if ((dir_name[0] == '.') && ((dir_name[1] == '\0') || ((dir_name[1] == '.') && (dir_name[2] == '\0')))) {
 					break;
 				}
-				if (chown(dir_name, uid, gid) == -1) {
+				if (lchown(dir_name, uid, gid) == -1) {
 					bb_perror_msg("cannot change ownership of %s", argv_ptr);
 					ret |= EXIT_FAILURE;
 				}
@@ -97,16 +96,13 @@ extern int install_main(int argc, char **argv)
 		}
 		return(ret);
 	}
-
-	if ((stat(argv[argc - 1], &statbuf) == -1) && (errno != ENOENT)) {
-		bb_perror_msg_and_die("stat failed for %s: ", argv[argc - 1]);
-	}
-
+	
+	cp_mv_stat2(argv[argc - 1], &statbuf, lstat);
 	for (i = optind; i < argc - 1; i++) {
 		unsigned char *dest;
 
 		if (S_ISDIR(statbuf.st_mode)) {
-			dest = concat_path_file(argv[argc - 1], argv[i]);
+			dest = concat_path_file(argv[argc - 1], basename(argv[i]));
 		} else {
 			dest = argv[argc - 1];
 		}
@@ -119,11 +115,11 @@ extern int install_main(int argc, char **argv)
 		}
 
 		/* Set the user and group id */
-		if (chown(dest, uid, gid) == -1) {
+		if (lchown(dest, uid, gid) == -1) {
 			bb_perror_msg("cannot change ownership of %s", dest);
 			ret |= EXIT_FAILURE;			
 		}
-		if (strip_flag) {
+		if (flags & INSTALL_OPT_STRIP) {
 			if (execlp("strip", "strip", dest, NULL) == -1) {
 				bb_error_msg("strip failed");
 				ret |= EXIT_FAILURE;