style fixes. No code changes

30 files changed, 84 insertions, 82 deletions

diff --git a/applets/applets.c b/applets/applets.c
index 958defe75..bbb545a84 100644
--- a/applets/applets.c
+++ b/applets/applets.c
@@ -124,7 +124,7 @@ static const unsigned short mode_mask[] = {
 	0,          S_IXOTH,            S_IXOTH,    0	/* other */
 };
 
-#define parse_error(x)  do { errmsg = x; goto pe_label; } while(0)
+#define parse_error(x)  do { errmsg = x; goto pe_label; } while (0)
 
 static void parse_config_file(void)
 {
diff --git a/archival/bbunzip.c b/archival/bbunzip.c
index 4dba498b8..00cece4ad 100644
--- a/archival/bbunzip.c
+++ b/archival/bbunzip.c
@@ -217,7 +217,7 @@ char* make_new_name_gunzip(char *filename)
 #endif
 	) {
 		extension[-1] = '\0';
-	} else if(strcmp(extension, "tgz") == 0) {
+	} else if (strcmp(extension, "tgz") == 0) {
 		filename = xstrdup(filename);
 		extension = strrchr(filename, '.');
 		extension[2] = 'a';
diff --git a/archival/gzip.c b/archival/gzip.c
index 561f1088c..03b6b9117 100644
--- a/archival/gzip.c
+++ b/archival/gzip.c
@@ -47,7 +47,7 @@ aa:      85.1% -- replaced with aa.gz
 //#define DEBUG 1
 /* Diagnostic functions */
 #ifdef DEBUG
-#  define Assert(cond,msg) {if(!(cond)) bb_error_msg(msg);}
+#  define Assert(cond,msg) { if (!(cond)) bb_error_msg(msg); }
 #  define Trace(x) fprintf x
 #  define Tracev(x) {if (verbose) fprintf x ;}
 #  define Tracevv(x) {if (verbose > 1) fprintf x ;}
diff --git a/archival/tar.c b/archival/tar.c
index 11a74dfe9..79979b05f 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -676,7 +676,7 @@ static void handle_SIGCHLD(int status)
 		/* child exited with 0 */
 		return;
 	/* Cannot happen?
-	if(!WIFSIGNALED(status) && !WIFEXITED(status)) return; */
+	if (!WIFSIGNALED(status) && !WIFEXITED(status)) return; */
 	child_error = 1;
 }
 #endif
diff --git a/coreutils/rm.c b/coreutils/rm.c
index 6f32e7dc5..61e3e7010 100644
--- a/coreutils/rm.c
+++ b/coreutils/rm.c
@@ -29,11 +29,11 @@ int rm_main(int argc, char **argv)
 	opt_complementary = "f-i:i-f";
 	opt = getopt32(argc, argv, "fiRr");
 	argv += optind;
-	if(opt & 1)
+	if (opt & 1)
 		flags |= FILEUTILS_FORCE;
-	if(opt & 2)
+	if (opt & 2)
 		flags |= FILEUTILS_INTERACTIVE;
-	if(opt & 12)
+	if (opt & 12)
 		flags |= FILEUTILS_RECUR;
 
 	if (*argv != NULL) {
diff --git a/debianutils/start_stop_daemon.c b/debianutils/start_stop_daemon.c
index 60a78793e..1154794fd 100644
--- a/debianutils/start_stop_daemon.c
+++ b/debianutils/start_stop_daemon.c
@@ -183,7 +183,7 @@ static int do_stop(void)
 	if (!quiet && killed) {
 		printf("stopped %s (pid", what);
 		for (p = found; p; p = p->next)
-			if(p->pid < 0)
+			if (p->pid < 0)
 				printf(" %d", -p->pid);
 		puts(")");
 	}
diff --git a/editors/awk.c b/editors/awk.c
index 1bdb9b924..5a504d034 100644
--- a/editors/awk.c
+++ b/editors/awk.c
@@ -2145,7 +2145,8 @@ static var *evaluate(node *op, var *res)
 				X.rsm = newfile(R.s);
 				if (! X.rsm->F) {
 					if (opn == '|') {
-						if((X.rsm->F = popen(R.s, "w")) == NULL)
+						X.rsm->F = popen(R.s, "w");
+						if (X.rsm->F == NULL)
 							bb_perror_msg_and_die("popen");
 						X.rsm->is_pipe = 1;
 					} else {
diff --git a/editors/patch.c b/editors/patch.c
index 4d1425edc..11b2f2587 100644
--- a/editors/patch.c
+++ b/editors/patch.c
@@ -62,7 +62,9 @@ static char *extract_filename(char *line, int patch_level)
 
 	/* skip over (patch_level) number of leading directories */
 	for (i = 0; i < patch_level; i++) {
-		if(!(temp = strchr(filename_start_ptr, '/'))) break;
+		temp = strchr(filename_start_ptr, '/');
+		if (!temp)
+			break;
 		filename_start_ptr = temp + 1;
 	}
 
diff --git a/editors/vi.c b/editors/vi.c
index 5bce4272f..a103776d2 100644
--- a/editors/vi.c
+++ b/editors/vi.c
@@ -447,7 +447,7 @@ static void edit_file(char * fn)
 				q = p;
 				p = strchr(q,'\n');
 				if (p)
-					while(*p == '\n')
+					while (*p == '\n')
 						*p++ = '\0';
 				if (*q)
 					colon(q);
diff --git a/findutils/xargs.c b/findutils/xargs.c
index 695091a04..a430e5f3d 100644
--- a/findutils/xargs.c
+++ b/findutils/xargs.c
@@ -141,7 +141,7 @@ static xlist_t *process_stdin(xlist_t *list_arg,
 			} else {
 				goto set;
 			}
-		} else { /* if(state == NORM) */
+		} else { /* if (state == NORM) */
 			if (ISSPACE(c)) {
 				if (s) {
 unexpected_eof:
diff --git a/init/init.c b/init/init.c
index 8c32b7791..342e0a6b8 100644
--- a/init/init.c
+++ b/init/init.c
@@ -843,7 +843,7 @@ static void parse_inittab(void)
 		for (a = actions; a->name != 0; a++) {
 			if (strcmp(a->name, action) == 0) {
 				if (*id != '\0') {
-					if(strncmp(id, "/dev/", 5) == 0)
+					if (strncmp(id, "/dev/", 5) == 0)
 						id += 5;
 					strcpy(tmpConsole, "/dev/");
 					safe_strncpy(tmpConsole + 5, id,
diff --git a/libbb/copy_file.c b/libbb/copy_file.c
index 700564212..a6cfe122d 100644
--- a/libbb/copy_file.c
+++ b/libbb/copy_file.c
@@ -254,7 +254,7 @@ int copy_file(const char *source, const char *dest, int flags)
 				return -1;
 			}
 			if (con) {
-				if(setfilecon(dest, con) == -1) {
+				if (setfilecon(dest, con) == -1) {
 					bb_perror_msg("setfilecon:%s,%s", dest, con);
 					freecon(con);
 					return -1;
diff --git a/libbb/get_console.c b/libbb/get_console.c
index 42ee137b9..9797ad6f0 100644
--- a/libbb/get_console.c
+++ b/libbb/get_console.c
@@ -50,17 +50,17 @@ int get_console_fd(void)
 
 	for (fd = 2; fd >= 0; fd--) {
 		int fd4name;
-		int choise_fd;
+		int choice_fd;
 		char arg;
 
 		fd4name = open_a_console(console_names[fd]);
  chk_std:
-		choise_fd = (fd4name >= 0 ? fd4name : fd);
+		choice_fd = (fd4name >= 0 ? fd4name : fd);
 
 		arg = 0;
-		if (ioctl(choise_fd, KDGKBTYPE, &arg) == 0)
-			return choise_fd;
-		if(fd4name >= 0) {
+		if (ioctl(choice_fd, KDGKBTYPE, &arg) == 0)
+			return choice_fd;
+		if (fd4name >= 0) {
 			close(fd4name);
 			fd4name = -1;
 			goto chk_std;
diff --git a/libbb/get_line_from_file.c b/libbb/get_line_from_file.c
index 2c9608e9e..1eb4af13c 100644
--- a/libbb/get_line_from_file.c
+++ b/libbb/get_line_from_file.c
@@ -17,7 +17,7 @@
  * end of line.  If end isn't NULL, length of the chunk read is stored in it.
  * Return NULL if EOF/error */
 
-char *bb_get_chunk_from_file(FILE * file, int *end)
+char *bb_get_chunk_from_file(FILE *file, int *end)
 {
 	int ch;
 	int idx = 0;
@@ -27,7 +27,8 @@ char *bb_get_chunk_from_file(FILE * file, int *end)
 	while ((ch = getc(file)) != EOF) {
 		/* grow the line buffer as necessary */
 		if (idx >= linebufsz) {
-			linebuf = xrealloc(linebuf, linebufsz += 80);
+			linebufsz += 80;
+			linebuf = xrealloc(linebuf, linebufsz);
 		}
 		linebuf[idx++] = (char) ch;
 		if (!ch || (end && ch == '\n'))
@@ -49,7 +50,7 @@ char *bb_get_chunk_from_file(FILE * file, int *end)
 }
 
 /* Get line, including trailing \n if any */
-char *xmalloc_fgets(FILE * file)
+char *xmalloc_fgets(FILE *file)
 {
 	int i;
 
@@ -57,7 +58,7 @@ char *xmalloc_fgets(FILE * file)
 }
 
 /* Get line.  Remove trailing \n */
-char *xmalloc_getline(FILE * file)
+char *xmalloc_getline(FILE *file)
 {
 	int i;
 	char *c = bb_get_chunk_from_file(file, &i);
diff --git a/libbb/login.c b/libbb/login.c
index 6ebb9a6a0..f3a3357bc 100644
--- a/libbb/login.c
+++ b/libbb/login.c
@@ -43,7 +43,7 @@ void print_login_issue(const char *issue_file, const char *tty)
 		outbuf = buf;
 		buf[0] = c;
 		buf[1] = '\0';
-		if(c == '\n') {
+		if (c == '\n') {
 			buf[1] = '\r';
 			buf[2] = '\0';
 		}
diff --git a/libbb/trim.c b/libbb/trim.c
index d36391540..4957d7276 100644
--- a/libbb/trim.c
+++ b/libbb/trim.c
@@ -8,12 +8,8 @@
  * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 
-#include <stdio.h>
-#include <string.h>
-#include <ctype.h>
 #include "libbb.h"
 
-
 void trim(char *s)
 {
 	size_t len = strlen(s);
@@ -23,9 +19,9 @@ void trim(char *s)
 	while (len && isspace(s[len-1])) --len;
 
 	/* trim leading whitespace */
-	if(len) {
+	if (len) {
 		lws = strspn(s, " \n\r\t\v");
 		memmove(s, s + lws, len -= lws);
 	}
-	s[len] = 0;
+	s[len] = '\0';
 }
diff --git a/miscutils/makedevs.c b/miscutils/makedevs.c
index aa000a7ab..fce7ea43d 100644
--- a/miscutils/makedevs.c
+++ b/miscutils/makedevs.c
@@ -48,7 +48,7 @@ int makedevs_main(int argc, char **argv)
 		int sz;
 
 		sz = snprintf(buf, sizeof(buf), "%s%d", basedev, S);
-		if(sz<0 || sz>=sizeof(buf))  /* libc different */
+		if (sz < 0 || sz >= sizeof(buf))  /* libc different */
 			bb_error_msg_and_die("%s too large", basedev);
 
 	/* if mode != S_IFCHR and != S_IFBLK third param in mknod() ignored */
diff --git a/modutils/insmod.c b/modutils/insmod.c
index 50b5dd18e..adfbd33fe 100644
--- a/modutils/insmod.c
+++ b/modutils/insmod.c
@@ -3410,7 +3410,7 @@ static struct obj_file *obj_load(FILE * fp, int loadprogbits)
 		sec->header = section_headers[i];
 		sec->idx = i;
 
-		if(sec->header.sh_size) {
+		if (sec->header.sh_size) {
 			switch (sec->header.sh_type) {
 			case SHT_NULL:
 			case SHT_NOTE:
@@ -4219,17 +4219,17 @@ int insmod_main( int argc, char **argv)
 		goto out;
 	}
 
-	if(flag_print_load_map)
+	if (flag_print_load_map)
 		print_load_map(f);
 
 	exit_status = EXIT_SUCCESS;
 
 out:
 #if ENABLE_FEATURE_CLEAN_UP
-	if(fp)
+	if (fp)
 		fclose(fp);
 	free(tmp1);
-	if(!tmp1)
+	if (!tmp1)
 		free(m_name);
 	free(m_filename);
 #endif
diff --git a/modutils/rmmod.c b/modutils/rmmod.c
index 0a67b8965..67cf58c3b 100644
--- a/modutils/rmmod.c
+++ b/modutils/rmmod.c
@@ -46,11 +46,11 @@ int rmmod_main(int argc, char **argv)
 
 	/* Parse command line. */
 	n = getopt32(argc, argv, "wfa");
-	if((n & 1))	// --wait
+	if (n & 1)	// --wait
 		flags &= ~O_NONBLOCK;
-	if((n & 2))	// --force
+	if (n & 2)	// --force
 		flags |= O_TRUNC;
-	if((n & 4)) {
+	if (n & 4) {
 		/* Unload _all_ unused modules via NULL delete_module() call */
 		/* until the number of modules does not change */
 		size_t nmod = 0; /* number of modules */
diff --git a/networking/nc_bloaty.c b/networking/nc_bloaty.c
index 173f5a867..57af7ebe5 100644
--- a/networking/nc_bloaty.c
+++ b/networking/nc_bloaty.c
@@ -149,13 +149,13 @@ enum {
 /* Debug: squirt whatever message and sleep a bit so we can see it go by. */
 /* Beware: writes to stdOUT... */
 #if 0
-#define Debug(...) do { printf(__VA_ARGS__); printf("\n"); fflush(stdout); sleep(1); } while(0)
+#define Debug(...) do { printf(__VA_ARGS__); printf("\n"); fflush(stdout); sleep(1); } while (0)
 #else
-#define Debug(...) do { } while(0)
+#define Debug(...) do { } while (0)
 #endif
 
-#define holler_error(...)  do { if (o_verbose) bb_error_msg(__VA_ARGS__); } while(0)
-#define holler_perror(...) do { if (o_verbose) bb_perror_msg(__VA_ARGS__); } while(0)
+#define holler_error(...)  do { if (o_verbose) bb_error_msg(__VA_ARGS__); } while (0)
+#define holler_perror(...) do { if (o_verbose) bb_perror_msg(__VA_ARGS__); } while (0)
 
 /* catch: no-brainer interrupt handler */
 static void catch(int sig)
diff --git a/networking/nslookup.c b/networking/nslookup.c
index 8076aff98..424a0e4b9 100644
--- a/networking/nslookup.c
+++ b/networking/nslookup.c
@@ -147,7 +147,7 @@ int nslookup_main(int argc, char **argv)
 	/* (but it also says "may be enabled in /etc/resolv.conf|) */
 	/*_res.options |= RES_USE_INET6;*/
 
-	if(argc == 3)
+	if (argc == 3)
 		set_default_dns(argv[2]);
 
 	server_print();
diff --git a/networking/route.c b/networking/route.c
index 5b3e68b4c..dfb8ee56f 100644
--- a/networking/route.c
+++ b/networking/route.c
@@ -174,7 +174,7 @@ static void INET_setroute(int action, char **args)
 
 		/* recognize x.x.x.x/mask format. */
 		prefix = strchr(target, '/');
-		if(prefix) {
+		if (prefix) {
 			int prefix_len;
 
 			prefix_len = xatoul_range(prefix+1, 0, 32);
@@ -193,7 +193,7 @@ static void INET_setroute(int action, char **args)
 		if (isnet < 0) {
 			bb_error_msg_and_die("resolving %s", target);
 		}
-		if(prefix) {
+		if (prefix) {
 			/* do not destroy prefix for process args */
 			*prefix = '/';
 		}
diff --git a/procps/sysctl.c b/procps/sysctl.c
index 7c72ac933..2c3fda5fe 100644
--- a/procps/sysctl.c
+++ b/procps/sysctl.c
@@ -301,14 +301,16 @@ int sysctl_display_all(const char *path, int output, int show_table)
 	char *tmpdir;
 	struct stat ts;
 
-	if (!(dp = opendir(path))) {
+	dp = opendir(path);
+	if (!dp) {
 		retval = -1;
 	} else {
 		while ((de = readdir(dp)) != NULL) {
 			tmpdir = concat_subpath_file(path, de->d_name);
-			if(tmpdir == NULL)
+			if (tmpdir == NULL)
 				continue;
-			if ((retval2 = stat(tmpdir, &ts)) != 0)
+			retval2 = stat(tmpdir, &ts);
+			if (retval2 != 0)
 				bb_perror_msg(tmpdir);
 			else {
 				if (S_ISDIR(ts.st_mode)) {
diff --git a/procps/uptime.c b/procps/uptime.c
index 3573ffe73..c2b5d3966 100644
--- a/procps/uptime.c
+++ b/procps/uptime.c
@@ -46,7 +46,7 @@ int uptime_main(int argc, char **argv)
 	upminutes = (int) info.uptime / 60;
 	uphours = (upminutes / 60) % 24;
 	upminutes %= 60;
-	if(uphours)
+	if (uphours)
 		printf("%2d:%02d, ", uphours, upminutes);
 	else
 		printf("%d min, ", upminutes);
diff --git a/scripts/basic/docproc.c b/scripts/basic/docproc.c
index d9db84ac5..a1b761bbd 100644
--- a/scripts/basic/docproc.c
+++ b/scripts/basic/docproc.c
@@ -178,7 +178,7 @@ void find_export_symbols(char * filename)
 			fprintf(stderr, "docproc: ");
 			perror(real_filename);
 		}
-		while(fgets(line, MAXLINESZ, fp)) {
+		while (fgets(line, MAXLINESZ, fp)) {
 			char *p;
 			char *e;
 			if (((p = strstr(line, "EXPORT_SYMBOL_GPL")) != 0) ||
@@ -291,7 +291,7 @@ void parse_file(FILE *infile)
 {
 	char line[MAXLINESZ];
 	char * s;
-	while(fgets(line, MAXLINESZ, infile)) {
+	while (fgets(line, MAXLINESZ, infile)) {
 		if (line[0] == '!') {
 			s = line + 2;
 			switch (line[1]) {
diff --git a/selinux/matchpathcon.c b/selinux/matchpathcon.c
index 83ea75d47..4e33c99f1 100644
--- a/selinux/matchpathcon.c
+++ b/selinux/matchpathcon.c
@@ -53,7 +53,7 @@ int matchpathcon_main(int argc, char **argv)
 			bb_perror_msg_and_die("error while processing %s", prefix);
 	}
 
-	while((path = *argv++) != NULL) {
+	while ((path = *argv++) != NULL) {
 		security_context_t con;
 		int rc;
 
diff --git a/shell/bbsh.c b/shell/bbsh.c
index 6bef3685a..8f0fb0511 100644
--- a/shell/bbsh.c
+++ b/shell/bbsh.c
@@ -68,7 +68,7 @@ struct pipeline {
 
 static void free_list(void *list, void (*freeit)(void *data))
 {
-	while(list) {
+	while (list) {
 		void **next = (void **)list;
 		void *list_next = *next;
 		freeit(list);
@@ -159,12 +159,12 @@ static int run_pipeline(struct pipeline *line)
 	// Handle local commands.  This is totally fake and plastic.
 	if (cmd->argc==2 && !strcmp(cmd->argv[0],"cd"))
 		chdir(cmd->argv[1]);
-	else if(!strcmp(cmd->argv[0],"exit"))
+	else if (!strcmp(cmd->argv[0],"exit"))
 		exit(cmd->argc>1 ? atoi(cmd->argv[1]) : 0);
 	else {
 		int status;
 		pid_t pid=fork();
-		if(!pid) {
+		if (!pid) {
 			run_applet_and_exit(cmd->argv[0],cmd->argc,cmd->argv);
 			execvp(cmd->argv[0],cmd->argv);
 			printf("No %s",cmd->argv[0]);
@@ -179,7 +179,7 @@ static void free_cmd(void *data)
 {
 	struct command *cmd=(struct command *)data;
 
-	while(cmd->argc) free(cmd->argv[--cmd->argc]);
+	while (cmd->argc) free(cmd->argv[--cmd->argc]);
 }
 
 
@@ -211,8 +211,8 @@ int bbsh_main(int argc, char **argv)
 	else {
 		unsigned cmdlen=0;
 		for (;;) {
-			if(!f) putchar('$');
-			if(1 > getline(&command, &cmdlen,f ? : stdin)) break;
+			if (!f) putchar('$');
+			if (1 > getline(&command, &cmdlen,f ? : stdin)) break;
 
 			handle(command);
 		}
diff --git a/shell/msh.c b/shell/msh.c
index 963e59446..4d1e84cf0 100644
--- a/shell/msh.c
+++ b/shell/msh.c
@@ -92,21 +92,21 @@ extern char **environ;
 #ifdef MSHDEBUG
 int mshdbg = MSHDEBUG;
 
-#define DBGPRINTF(x)	if(mshdbg>0)printf x
-#define DBGPRINTF0(x)	if(mshdbg>0)printf x
-#define DBGPRINTF1(x)	if(mshdbg>1)printf x
-#define DBGPRINTF2(x)	if(mshdbg>2)printf x
-#define DBGPRINTF3(x)	if(mshdbg>3)printf x
-#define DBGPRINTF4(x)	if(mshdbg>4)printf x
-#define DBGPRINTF5(x)	if(mshdbg>5)printf x
-#define DBGPRINTF6(x)	if(mshdbg>6)printf x
-#define DBGPRINTF7(x)	if(mshdbg>7)printf x
-#define DBGPRINTF8(x)	if(mshdbg>8)printf x
-#define DBGPRINTF9(x)	if(mshdbg>9)printf x
+#define DBGPRINTF(x)	if (mshdbg>0) printf x
+#define DBGPRINTF0(x)	if (mshdbg>0) printf x
+#define DBGPRINTF1(x)	if (mshdbg>1) printf x
+#define DBGPRINTF2(x)	if (mshdbg>2) printf x
+#define DBGPRINTF3(x)	if (mshdbg>3) printf x
+#define DBGPRINTF4(x)	if (mshdbg>4) printf x
+#define DBGPRINTF5(x)	if (mshdbg>5) printf x
+#define DBGPRINTF6(x)	if (mshdbg>6) printf x
+#define DBGPRINTF7(x)	if (mshdbg>7) printf x
+#define DBGPRINTF8(x)	if (mshdbg>8) printf x
+#define DBGPRINTF9(x)	if (mshdbg>9) printf x
 
 int mshdbg_rc = 0;
 
-#define RCPRINTF(x)		if(mshdbg_rc)printf x
+#define RCPRINTF(x)	if (mshdbg_rc) printf x
 
 #else
 
diff --git a/util-linux/mount.c b/util-linux/mount.c
index bc1c0d4a9..e4a7c81c6 100644
--- a/util-linux/mount.c
+++ b/util-linux/mount.c
@@ -138,7 +138,7 @@ static void append_mount_options(char **oldopts, const char *newopts)
 				 && (p[len]==',' || p[len]==0))
 					goto skip;
 				p = strchr(p,',');
-				if(!p) break;
+				if (!p) break;
 				p++;
 			}
 			p = xasprintf("%s,%.*s", *oldopts, len, newopts);
diff --git a/util-linux/switch_root.c b/util-linux/switch_root.c
index 43377e16e..6dba9f05f 100644
--- a/util-linux/switch_root.c
+++ b/util-linux/switch_root.c
@@ -24,7 +24,7 @@
 #define MS_MOVE			8192
 #endif
 
-dev_t rootdev;
+static dev_t rootdev;
 
 // Recursively delete contents of rootfs.
 
@@ -39,12 +39,13 @@ static void delete_contents(const char *directory)
 
 	// Recursively delete the contents of directories.
 	if (S_ISDIR(st.st_mode)) {
-		if((dir = opendir(directory))) {
+		dir = opendir(directory);
+		if (dir) {
 			while ((d = readdir(dir))) {
-				char *newdir=d->d_name;
+				char *newdir = d->d_name;
 
 				// Skip . and ..
-				if(*newdir=='.' && (!newdir[1] || (newdir[1]=='.' && !newdir[2])))
+				if (*newdir=='.' && (!newdir[1] || (newdir[1]=='.' && !newdir[2])))
 					continue;
 
 				// Recurse to delete contents
@@ -66,7 +67,7 @@ static void delete_contents(const char *directory)
 int switch_root_main(int argc, char **argv);
 int switch_root_main(int argc, char **argv)
 {
-	char *newroot, *console=NULL;
+	char *newroot, *console = NULL;
 	struct stat st1, st2;
 	struct statfs stfs;
 
@@ -77,18 +78,18 @@ int switch_root_main(int argc, char **argv)
 
 	// Change to new root directory and verify it's a different fs.
 
-	newroot=argv[optind++];
+	newroot = argv[optind++];
 
 	if (chdir(newroot) || lstat(".", &st1) || lstat("/", &st2) ||
 		st1.st_dev == st2.st_dev)
 	{
 		bb_error_msg_and_die("bad newroot %s", newroot);
 	}
-	rootdev=st2.st_dev;
+	rootdev = st2.st_dev;
 
 	// Additional sanity checks: we're about to rm -rf /,  so be REALLY SURE
 	// we mean it.  (I could make this a CONFIG option, but I would get email
-	// from all the people who WILL eat their filesystemss.)
+	// from all the people who WILL eat their filesystems.)
 
 	if (lstat("/init", &st1) || !S_ISREG(st1.st_mode) || statfs("/", &stfs) ||
 		(stfs.f_type != RAMFS_MAGIC && stfs.f_type != TMPFS_MAGIC) ||
@@ -105,14 +106,13 @@ int switch_root_main(int argc, char **argv)
 	// recalculate "." and ".." links.
 
 	if (mount(".", "/", NULL, MS_MOVE, NULL) || chroot(".") || chdir("/"))
-		bb_error_msg_and_die("moving root");
+		bb_error_msg_and_die("error moving root");
 
 	// If a new console specified, redirect stdin/stdout/stderr to that.
 
 	if (console) {
 		close(0);
-		if (open(console, O_RDWR) < 0)
-			bb_error_msg_and_die("bad console '%s'", console);
+		xopen(console, O_RDWR);
 		dup2(0, 1);
 		dup2(0, 2);
 	}