[PATCH 01/10] mtd_debug: fixup style

[Brian Norris <computersforpeace@gmail.com>]

Remove extraneous spaces.
Put braces on same line as "if", "for", "switch", etc. statements.
No parentheses around return values.
Use "errmsg_die" from common.h.
Replace "exit (1)" with "exit(EXIT_FAILURE)".

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 mtd_debug.c |  343 +++++++++++++++++++++++++++-------------------------------
 1 files changed, 160 insertions(+), 183 deletions(-)

diff --git a/mtd_debug.c b/mtd_debug.c
index b82dabe..a348a4c 100644
--- a/mtd_debug.c
+++ b/mtd_debug.c
@@ -39,263 +39,250 @@
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <mtd/mtd-user.h>
+#include "common.h"
 
 /*
  * MEMGETINFO
  */
-static int getmeminfo (int fd,struct mtd_info_user *mtd)
+static int getmeminfo(int fd, struct mtd_info_user *mtd)
 {
-	return (ioctl (fd,MEMGETINFO,mtd));
+	return ioctl(fd, MEMGETINFO, mtd);
 }
 
 /*
  * MEMERASE
  */
-static int memerase (int fd,struct erase_info_user *erase)
+static int memerase(int fd, struct erase_info_user *erase)
 {
-	return (ioctl (fd,MEMERASE,erase));
+	return ioctl(fd, MEMERASE, erase);
 }
 
 /*
  * MEMGETREGIONCOUNT
  * MEMGETREGIONINFO
  */
-static int getregions (int fd,struct region_info_user *regions,int *n)
+static int getregions(int fd, struct region_info_user *regions, int *n)
 {
-	int i,err;
-	err = ioctl (fd,MEMGETREGIONCOUNT,n);
-	if (err) return (err);
-	for (i = 0; i < *n; i++)
-	{
+	int i, err;
+	err = ioctl(fd, MEMGETREGIONCOUNT, n);
+	if (err)
+		return err;
+	for (i = 0; i < *n; i++) {
 		regions[i].regionindex = i;
-		err = ioctl (fd,MEMGETREGIONINFO,&regions[i]);
-		if (err) return (err);
+		err = ioctl(fd, MEMGETREGIONINFO, &regions[i]);
+		if (err)
+			return err;
 	}
-	return (0);
+	return 0;
 }
 
-int erase_flash (int fd,u_int32_t offset,u_int32_t bytes)
+int erase_flash(int fd, u_int32_t offset, u_int32_t bytes)
 {
 	int err;
 	struct erase_info_user erase;
 	erase.start = offset;
 	erase.length = bytes;
-	err = memerase (fd,&erase);
-	if (err < 0)
-	{
-		perror ("MEMERASE");
-		return (1);
+	err = memerase(fd, &erase);
+	if (err < 0) {
+		perror("MEMERASE");
+		return 1;
 	}
-	fprintf (stderr,"Erased %d bytes from address 0x%.8x in flash\n",bytes,offset);
-	return (0);
+	fprintf(stderr, "Erased %d bytes from address 0x%.8x in flash\n", bytes, offset);
+	return 0;
 }
 
-void printsize (u_int32_t x)
+void printsize(u_int32_t x)
 {
 	int i;
 	static const char *flags = "KMGT";
-	printf ("%u ",x);
-	for (i = 0; x >= 1024 && flags[i] != '\0'; i++) x /= 1024;
+	printf("%u ", x);
+	for (i = 0; x >= 1024 && flags[i] != '\0'; i++)
+		x /= 1024;
 	i--;
-	if (i >= 0) printf ("(%u%c)",x,flags[i]);
+	if (i >= 0)
+		printf("(%u%c)", x, flags[i]);
 }
 
-int flash_to_file (int fd,u_int32_t offset,size_t len,const char *filename)
+int flash_to_file(int fd, u_int32_t offset, size_t len, const char *filename)
 {
 	u_int8_t *buf = NULL;
-	int outfd,err;
-	int size = len * sizeof (u_int8_t);
+	int outfd, err;
+	int size = len * sizeof(u_int8_t);
 	int n = len;
 
-	if (offset != lseek (fd,offset,SEEK_SET))
-	{
-		perror ("lseek()");
+	if (offset != lseek(fd, offset, SEEK_SET)) {
+		perror("lseek()");
 		goto err0;
 	}
-	outfd = creat (filename,0666);
-	if (outfd < 0)
-	{
-		perror ("creat()");
+	outfd = creat(filename, 0666);
+	if (outfd < 0) {
+		perror("creat()");
 		goto err1;
 	}
 
 retry:
-	if ((buf = (u_int8_t *) malloc (size)) == NULL)
-	{
-#define BUF_SIZE	(64 * 1024 * sizeof (u_int8_t))
-		fprintf (stderr, "%s: malloc(%#x)\n", __FUNCTION__, size);
+	if ((buf = (u_int8_t *) malloc(size)) == NULL) {
+#define BUF_SIZE	(64 * 1024 * sizeof(u_int8_t))
+		fprintf(stderr, "%s: malloc(%#x)\n", __FUNCTION__, size);
 		if (size != BUF_SIZE) {
 			size = BUF_SIZE;
-			fprintf (stderr, "%s: trying buffer size %#x\n", __FUNCTION__, size);
+			fprintf(stderr, "%s: trying buffer size %#x\n", __FUNCTION__, size);
 			goto retry;
 		}
-		perror ("malloc()");
+		perror("malloc()");
 		goto err0;
 	}
 	do {
 		if (n <= size)
 			size = n;
-		err = read (fd,buf,size);
-		if (err < 0)
-		{
-			fprintf (stderr, "%s: read, size %#x, n %#x\n", __FUNCTION__, size, n);
-			perror ("read()");
+		err = read(fd, buf, size);
+		if (err < 0) {
+			fprintf(stderr, "%s: read, size %#x, n %#x\n", __FUNCTION__, size, n);
+			perror("read()");
 			goto err2;
 		}
-		err = write (outfd,buf,size);
-		if (err < 0)
-		{
-			fprintf (stderr, "%s: write, size %#x, n %#x\n", __FUNCTION__, size, n);
-			perror ("write()");
+		err = write(outfd, buf, size);
+		if (err < 0) {
+			fprintf(stderr, "%s: write, size %#x, n %#x\n", __FUNCTION__, size, n);
+			perror("write()");
 			goto err2;
 		}
-		if (err != size)
-		{
-			fprintf (stderr,"Couldn't copy entire buffer to %s. (%d/%d bytes copied)\n",filename,err,size);
+		if (err != size) {
+			fprintf(stderr, "Couldn't copy entire buffer to %s. (%d/%d bytes copied)\n", filename, err, size);
 			goto err2;
 		}
 		n -= size;
 	} while (n > 0);
 
 	if (buf != NULL)
-		free (buf);
-	close (outfd);
-	printf ("Copied %zu bytes from address 0x%.8x in flash to %s\n",len,offset,filename);
-	return (0);
+		free(buf);
+	close(outfd);
+	printf("Copied %zu bytes from address 0x%.8x in flash to %s\n", len, offset, filename);
+	return 0;
 
 err2:
-	close (outfd);
+	close(outfd);
 err1:
 	if (buf != NULL)
-		free (buf);
+		free(buf);
 err0:
-	return (1);
+	return 1;
 }
 
-int file_to_flash (int fd,u_int32_t offset,u_int32_t len,const char *filename)
+int file_to_flash(int fd, u_int32_t offset, u_int32_t len, const char *filename)
 {
 	u_int8_t *buf = NULL;
 	FILE *fp;
 	int err;
-	int size = len * sizeof (u_int8_t);
+	int size = len * sizeof(u_int8_t);
 	int n = len;
 
-	if (offset != lseek (fd,offset,SEEK_SET))
-	{
-		perror ("lseek()");
-		return (1);
+	if (offset != lseek(fd, offset, SEEK_SET)) {
+		perror("lseek()");
+		return 1;
 	}
-	if ((fp = fopen (filename,"r")) == NULL)
-	{
-		perror ("fopen()");
-		return (1);
+	if ((fp = fopen(filename, "r")) == NULL) {
+		perror("fopen()");
+		return 1;
 	}
 retry:
-	if ((buf = (u_int8_t *) malloc (size)) == NULL)
-	{
-		fprintf (stderr, "%s: malloc(%#x) failed\n", __FUNCTION__, size);
+	if ((buf = (u_int8_t *) malloc(size)) == NULL) {
+		fprintf(stderr, "%s: malloc(%#x) failed\n", __FUNCTION__, size);
 		if (size != BUF_SIZE) {
 			size = BUF_SIZE;
-			fprintf (stderr, "%s: trying buffer size %#x\n", __FUNCTION__, size);
+			fprintf(stderr, "%s: trying buffer size %#x\n", __FUNCTION__, size);
 			goto retry;
 		}
-		perror ("malloc()");
-		fclose (fp);
-		return (1);
+		perror("malloc()");
+		fclose(fp);
+		return 1;
 	}
 	do {
 		if (n <= size)
 			size = n;
-		if (fread (buf,size,1,fp) != 1 || ferror (fp))
-		{
-			fprintf (stderr, "%s: fread, size %#x, n %#x\n", __FUNCTION__, size, n);
-			perror ("fread()");
-			free (buf);
-			fclose (fp);
-			return (1);
+		if (fread(buf, size, 1, fp) != 1 || ferror(fp)) {
+			fprintf(stderr, "%s: fread, size %#x, n %#x\n", __FUNCTION__, size, n);
+			perror("fread()");
+			free(buf);
+			fclose(fp);
+			return 1;
 		}
-		err = write (fd,buf,size);
-		if (err < 0)
-		{
-			fprintf (stderr, "%s: write, size %#x, n %#x\n", __FUNCTION__, size, n);
-			perror ("write()");
-			free (buf);
-			fclose (fp);
-			return (1);
+		err = write(fd, buf, size);
+		if (err < 0) {
+			fprintf(stderr, "%s: write, size %#x, n %#x\n", __FUNCTION__, size, n);
+			perror("write()");
+			free(buf);
+			fclose(fp);
+			return 1;
 		}
 		n -= size;
 	} while (n > 0);
 
 	if (buf != NULL)
-		free (buf);
-	fclose (fp);
-	printf ("Copied %d bytes from %s to address 0x%.8x in flash\n",len,filename,offset);
-	return (0);
+		free(buf);
+	fclose(fp);
+	printf("Copied %d bytes from %s to address 0x%.8x in flash\n", len, filename, offset);
+	return 0;
 }
 
-int showinfo (int fd)
+int showinfo(int fd)
 {
-	int i,err,n;
+	int i, err, n;
 	struct mtd_info_user mtd;
 	static struct region_info_user region[1024];
 
-	err = getmeminfo (fd,&mtd);
-	if (err < 0)
-	{
-		perror ("MEMGETINFO");
-		return (1);
+	err = getmeminfo(fd, &mtd);
+	if (err < 0) {
+		perror("MEMGETINFO");
+		return 1;
 	}
 
-	err = getregions (fd,region,&n);
-	if (err < 0)
-	{
-		perror ("MEMGETREGIONCOUNT");
-		return (1);
+	err = getregions(fd, region, &n);
+	if (err < 0) {
+		perror("MEMGETREGIONCOUNT");
+		return 1;
 	}
 
-	printf ("mtd.type = ");
-	switch (mtd.type)
-	{
+	printf("mtd.type = ");
+	switch (mtd.type) {
 		case MTD_ABSENT:
-			printf ("MTD_ABSENT");
+			printf("MTD_ABSENT");
 			break;
 		case MTD_RAM:
-			printf ("MTD_RAM");
+			printf("MTD_RAM");
 			break;
 		case MTD_ROM:
-			printf ("MTD_ROM");
+			printf("MTD_ROM");
 			break;
 		case MTD_NORFLASH:
-			printf ("MTD_NORFLASH");
+			printf("MTD_NORFLASH");
 			break;
 		case MTD_NANDFLASH:
-			printf ("MTD_NANDFLASH");
+			printf("MTD_NANDFLASH");
 			break;
 		case MTD_DATAFLASH:
-			printf ("MTD_DATAFLASH");
+			printf("MTD_DATAFLASH");
 			break;
 		case MTD_UBIVOLUME:
-			printf ("MTD_UBIVOLUME");
+			printf("MTD_UBIVOLUME");
 		default:
-			printf ("(unknown type - new MTD API maybe?)");
+			printf("(unknown type - new MTD API maybe?)");
 	}
 
-	printf ("\nmtd.flags = ");
+	printf("\nmtd.flags = ");
 	if (mtd.flags == MTD_CAP_ROM)
-		printf ("MTD_CAP_ROM");
+		printf("MTD_CAP_ROM");
 	else if (mtd.flags == MTD_CAP_RAM)
-		printf ("MTD_CAP_RAM");
+		printf("MTD_CAP_RAM");
 	else if (mtd.flags == MTD_CAP_NORFLASH)
-		printf ("MTD_CAP_NORFLASH");
+		printf("MTD_CAP_NORFLASH");
 	else if (mtd.flags == MTD_CAP_NANDFLASH)
-		printf ("MTD_CAP_NANDFLASH");
+		printf("MTD_CAP_NANDFLASH");
 	else if (mtd.flags == MTD_WRITEABLE)
-		printf ("MTD_WRITEABLE");
-	else
-	{
+		printf("MTD_WRITEABLE");
+	else {
 		int first = 1;
-		static struct
-		{
+		static struct {
 			const char *name;
 			int value;
 		} flags[] =
@@ -306,58 +293,53 @@ int showinfo (int fd)
 			{ "MTD_POWERUP_LOCK", MTD_POWERUP_LOCK },
 			{ NULL, -1 }
 		};
-		for (i = 0; flags[i].name != NULL; i++)
-			if (mtd.flags & flags[i].value)
-			{
-				if (first)
-				{
-					printf ("%s", flags[i].name);
+		for (i = 0; flags[i].name != NULL; i++) {
+			if (mtd.flags & flags[i].value) {
+				if (first) {
+					printf("%s", flags[i].name);
 					first = 0;
+				} else {
+					printf(" | %s", flags[i].name);
 				}
-				else printf (" | %s",flags[i].name);
 			}
+		}
 	}
 
-	printf ("\nmtd.size = ");
-	printsize (mtd.size);
+	printf("\nmtd.size = ");
+	printsize(mtd.size);
 
-	printf ("\nmtd.erasesize = ");
-	printsize (mtd.erasesize);
+	printf("\nmtd.erasesize = ");
+	printsize(mtd.erasesize);
 
-	printf ("\nmtd.writesize = ");
-	printsize (mtd.writesize);
+	printf("\nmtd.writesize = ");
+	printsize(mtd.writesize);
 
-	printf ("\nmtd.oobsize = ");
-	printsize (mtd.oobsize);
+	printf("\nmtd.oobsize = ");
+	printsize(mtd.oobsize);
 
-	printf ("\n"
-			"regions = %d\n"
-			"\n",
-			n);
+	printf("\nregions = %d\n\n", n);
 
-	for (i = 0; i < n; i++)
-	{
-		printf ("region[%d].offset = 0x%.8x\n"
+	for (i = 0; i < n; i++) {
+		printf("region[%d].offset = 0x%.8x\n"
 				"region[%d].erasesize = ",
-				i,region[i].offset,i);
-		printsize (region[i].erasesize);
-		printf ("\nregion[%d].numblocks = %d\n"
+				i, region[i].offset, i);
+		printsize(region[i].erasesize);
+		printf("\nregion[%d].numblocks = %d\n"
 				"region[%d].regionindex = %d\n",
-				i,region[i].numblocks,
-				i,region[i].regionindex);
+				i, region[i].numblocks,
+				i, region[i].regionindex);
 	}
-	return (0);
+	return 0;
 }
 
 void showusage(void)
 {
-	fprintf (stderr,
-			"usage: %1$s info <device>\n"
+	fprintf(stderr, "usage: %1$s info <device>\n"
 			"       %1$s read <device> <offset> <len> <dest-filename>\n"
 			"       %1$s write <device> <offset> <len> <source-filename>\n"
 			"       %1$s erase <device> <offset> <len>\n",
 			PROGRAM_NAME);
-	exit (1);
+	exit(EXIT_FAILURE);
 }
 
 #define OPT_INFO	1
@@ -365,51 +347,46 @@ void showusage(void)
 #define OPT_WRITE	3
 #define OPT_ERASE	4
 
-int main (int argc,char *argv[])
+int main(int argc, char *argv[])
 {
-	int err = 0,fd,option = OPT_INFO;
+	int err = 0, fd, option = OPT_INFO;
 	int open_flag;
 
 	/* parse command-line options */
-	if (argc == 3 && !strcmp (argv[1],"info"))
+	if (argc == 3 && !strcmp(argv[1], "info"))
 		option = OPT_INFO;
-	else if (argc == 6 && !strcmp (argv[1],"read"))
+	else if (argc == 6 && !strcmp(argv[1], "read"))
 		option = OPT_READ;
-	else if (argc == 6 && !strcmp (argv[1],"write"))
+	else if (argc == 6 && !strcmp(argv[1], "write"))
 		option = OPT_WRITE;
-	else if (argc == 5 && !strcmp (argv[1],"erase"))
+	else if (argc == 5 && !strcmp(argv[1], "erase"))
 		option = OPT_ERASE;
 	else
 		showusage();
 
 	/* open device */
-	open_flag = (option==OPT_INFO || option==OPT_READ) ? O_RDONLY : O_RDWR;
-	if ((fd = open (argv[2],O_SYNC | open_flag)) < 0)
-	{
-		perror ("open()");
-		exit (1);
-	}
+	open_flag = (option == OPT_INFO || option == OPT_READ) ? O_RDONLY : O_RDWR;
+	if ((fd = open(argv[2], O_SYNC | open_flag)) < 0)
+		errmsg_die("open()");
 
-	switch (option)
-	{
+	switch (option) {
 		case OPT_INFO:
-			showinfo (fd);
+			showinfo(fd);
 			break;
 		case OPT_READ:
-			err = flash_to_file (fd,strtol (argv[3],NULL,0),strtol (argv[4],NULL,0),argv[5]);
+			err = flash_to_file(fd, strtol(argv[3], NULL, 0), strtol(argv[4], NULL, 0), argv[5]);
 			break;
 		case OPT_WRITE:
-			err = file_to_flash (fd,strtol (argv[3],NULL,0),strtol (argv[4],NULL,0),argv[5]);
+			err = file_to_flash(fd, strtol(argv[3], NULL, 0), strtol(argv[4], NULL, 0), argv[5]);
 			break;
 		case OPT_ERASE:
-			err = erase_flash (fd,strtol (argv[3],NULL,0),strtol (argv[4],NULL,0));
+			err = erase_flash(fd, strtol(argv[3], NULL, 0), strtol(argv[4], NULL, 0));
 			break;
 	}
 
 	/* close device */
-	if (close (fd) < 0)
-		perror ("close()");
+	if (close(fd) < 0)
+		errmsg_die("close()");
 
-	exit (err);
+	return err;
 }
-
-- 
1.7.6