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-rw-r--r--tools/env/fw_env.c484
1 files changed, 240 insertions, 244 deletions
diff --git a/tools/env/fw_env.c b/tools/env/fw_env.c
index b60395e..f70c023 100644
--- a/tools/env/fw_env.c
+++ b/tools/env/fw_env.c
@@ -1,5 +1,5 @@
/*
- * (C) Copyright 2000
+ * (C) Copyright 2000-2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
@@ -12,7 +12,7 @@
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
@@ -34,16 +34,16 @@
#include <linux/mtd/mtd.h>
#include "fw_env.h"
-typedef unsigned char uchar;
+typedef unsigned char uchar;
#define CMD_GETENV "fw_printenv"
#define CMD_SETENV "fw_setenv"
typedef struct envdev_s {
- uchar devname[16]; /* Device name */
- ulong devoff; /* Device offset */
- ulong env_size; /* environment size */
- ulong erase_size; /* device erase size */
+ uchar devname[16]; /* Device name */
+ ulong devoff; /* Device offset */
+ ulong env_size; /* environment size */
+ ulong erase_size; /* device erase size */
} envdev_t;
static envdev_t envdevices[2];
@@ -59,8 +59,8 @@ static int curdev;
#define ENV_SIZE getenvsize()
typedef struct environment_s {
- ulong crc; /* CRC32 over data bytes */
- uchar flags; /* active or obsolete */
+ ulong crc; /* CRC32 over data bytes */
+ uchar flags; /* active or obsolete */
uchar *data;
} env_t;
@@ -77,92 +77,94 @@ static uchar obsolete_flag = 0;
static uchar default_environment[] = {
#if defined(CONFIG_BOOTARGS)
- "bootargs=" CONFIG_BOOTARGS "\0"
+ "bootargs=" CONFIG_BOOTARGS "\0"
#endif
#if defined(CONFIG_BOOTCOMMAND)
- "bootcmd=" CONFIG_BOOTCOMMAND "\0"
+ "bootcmd=" CONFIG_BOOTCOMMAND "\0"
#endif
#if defined(CONFIG_RAMBOOTCOMMAND)
- "ramboot=" CONFIG_RAMBOOTCOMMAND "\0"
+ "ramboot=" CONFIG_RAMBOOTCOMMAND "\0"
#endif
#if defined(CONFIG_NFSBOOTCOMMAND)
- "nfsboot=" CONFIG_NFSBOOTCOMMAND "\0"
+ "nfsboot=" CONFIG_NFSBOOTCOMMAND "\0"
#endif
#if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
- "bootdelay=" MK_STR(CONFIG_BOOTDELAY) "\0"
+ "bootdelay=" MK_STR (CONFIG_BOOTDELAY) "\0"
#endif
#if defined(CONFIG_BAUDRATE) && (CONFIG_BAUDRATE >= 0)
- "baudrate=" MK_STR(CONFIG_BAUDRATE) "\0"
+ "baudrate=" MK_STR (CONFIG_BAUDRATE) "\0"
#endif
#ifdef CONFIG_LOADS_ECHO
- "loads_echo=" MK_STR(CONFIG_LOADS_ECHO) "\0"
+ "loads_echo=" MK_STR (CONFIG_LOADS_ECHO) "\0"
#endif
#ifdef CONFIG_ETHADDR
- "ethaddr=" MK_STR(CONFIG_ETHADDR) "\0"
+ "ethaddr=" MK_STR (CONFIG_ETHADDR) "\0"
#endif
#ifdef CONFIG_ETH1ADDR
- "eth1addr=" MK_STR(CONFIG_ETH1ADDR) "\0"
+ "eth1addr=" MK_STR (CONFIG_ETH1ADDR) "\0"
#endif
#ifdef CONFIG_ETH2ADDR
- "eth2addr=" MK_STR(CONFIG_ETH2ADDR) "\0"
+ "eth2addr=" MK_STR (CONFIG_ETH2ADDR) "\0"
#endif
#ifdef CONFIG_ETHPRIME
- "ethprime=" CONFIG_ETHPRIME "\0"
+ "ethprime=" CONFIG_ETHPRIME "\0"
#endif
#ifdef CONFIG_IPADDR
- "ipaddr=" MK_STR(CONFIG_IPADDR) "\0"
+ "ipaddr=" MK_STR (CONFIG_IPADDR) "\0"
#endif
#ifdef CONFIG_SERVERIP
- "serverip=" MK_STR(CONFIG_SERVERIP) "\0"
+ "serverip=" MK_STR (CONFIG_SERVERIP) "\0"
#endif
#ifdef CFG_AUTOLOAD
- "autoload=" CFG_AUTOLOAD "\0"
+ "autoload=" CFG_AUTOLOAD "\0"
#endif
#ifdef CONFIG_ROOTPATH
- "rootpath=" MK_STR(CONFIG_ROOTPATH) "\0"
+ "rootpath=" MK_STR (CONFIG_ROOTPATH) "\0"
#endif
#ifdef CONFIG_GATEWAYIP
- "gatewayip=" MK_STR(CONFIG_GATEWAYIP) "\0"
+ "gatewayip=" MK_STR (CONFIG_GATEWAYIP) "\0"
#endif
#ifdef CONFIG_NETMASK
- "netmask=" MK_STR(CONFIG_NETMASK) "\0"
+ "netmask=" MK_STR (CONFIG_NETMASK) "\0"
#endif
#ifdef CONFIG_HOSTNAME
- "hostname=" MK_STR(CONFIG_HOSTNAME) "\0"
+ "hostname=" MK_STR (CONFIG_HOSTNAME) "\0"
#endif
#ifdef CONFIG_BOOTFILE
- "bootfile=" MK_STR(CONFIG_BOOTFILE) "\0"
+ "bootfile=" MK_STR (CONFIG_BOOTFILE) "\0"
#endif
#ifdef CONFIG_LOADADDR
- "loadaddr=" MK_STR(CONFIG_LOADADDR) "\0"
+ "loadaddr=" MK_STR (CONFIG_LOADADDR) "\0"
#endif
#ifdef CONFIG_PREBOOT
- "preboot=" CONFIG_PREBOOT "\0"
+ "preboot=" CONFIG_PREBOOT "\0"
#endif
#ifdef CONFIG_CLOCKS_IN_MHZ
- "clocks_in_mhz=" "1" "\0"
+ "clocks_in_mhz=" "1" "\0"
#endif
#if defined(CONFIG_PCI_BOOTDELAY) && (CONFIG_PCI_BOOTDELAY > 0)
- "pcidelay=" MK_STR(CONFIG_PCI_BOOTDELAY) "\0"
+ "pcidelay=" MK_STR (CONFIG_PCI_BOOTDELAY) "\0"
#endif
#ifdef CONFIG_EXTRA_ENV_SETTINGS
CONFIG_EXTRA_ENV_SETTINGS
#endif
- "\0" /* Termimate env_t data with 2 NULs */
+ "\0" /* Termimate env_t data with 2 NULs */
};
-static int flash_io (int mode);
-static uchar *envmatch(uchar *s1, uchar *s2);
-static int env_init(void);
-static int parse_config(void);
+static int flash_io (int mode);
+static uchar *envmatch (uchar * s1, uchar * s2);
+static int env_init (void);
+static int parse_config (void);
+
#if defined(CONFIG_FILE)
-static int get_config(char *);
+static int get_config (char *);
#endif
-static inline ulong getenvsize(void)
+static inline ulong getenvsize (void)
{
- ulong rc = CFG_ENV_SIZE - sizeof(long);
+ ulong rc = CFG_ENV_SIZE - sizeof (long);
+
if (HaveRedundEnv)
- rc -= sizeof(char);
+ rc -= sizeof (char);
return rc;
}
@@ -174,20 +176,20 @@ unsigned char *fw_getenv (unsigned char *name)
{
uchar *env, *nxt;
- if (env_init())
+ if (env_init ())
return (NULL);
- for (env=environment.data; *env; env=nxt+1) {
+ for (env = environment.data; *env; env = nxt + 1) {
uchar *val;
- for (nxt=env; *nxt; ++nxt) {
+ for (nxt = env; *nxt; ++nxt) {
if (nxt >= &environment.data[ENV_SIZE]) {
fprintf (stderr, "## Error: "
"environment not terminated\n");
return (NULL);
}
}
- val=envmatch(name, env);
+ val = envmatch (name, env);
if (!val)
continue;
return (val);
@@ -199,17 +201,17 @@ unsigned char *fw_getenv (unsigned char *name)
* Print the current definition of one, or more, or all
* environment variables
*/
-void fw_printenv(int argc, char *argv[])
+void fw_printenv (int argc, char *argv[])
{
uchar *env, *nxt;
int i, n_flag;
- if (env_init())
+ if (env_init ())
return;
- if (argc == 1) { /* Print all env variables */
- for (env=environment.data; *env; env=nxt+1) {
- for (nxt=env; *nxt; ++nxt) {
+ if (argc == 1) { /* Print all env variables */
+ for (env = environment.data; *env; env = nxt + 1) {
+ for (nxt = env; *nxt; ++nxt) {
if (nxt >= &environment.data[ENV_SIZE]) {
fprintf (stderr, "## Error: "
"environment not terminated\n");
@@ -217,12 +219,12 @@ void fw_printenv(int argc, char *argv[])
}
}
- printf("%s\n", env);
+ printf ("%s\n", env);
}
return;
}
- if (strcmp(argv[1], "-n") == 0) {
+ if (strcmp (argv[1], "-n") == 0) {
n_flag = 1;
++argv;
--argc;
@@ -235,32 +237,31 @@ void fw_printenv(int argc, char *argv[])
n_flag = 0;
}
- for (i=1; i<argc; ++i) { /* print single env variables */
+ for (i = 1; i < argc; ++i) { /* print single env variables */
uchar *name = argv[i];
uchar *val = NULL;
- for (env=environment.data; *env; env=nxt+1) {
+ for (env = environment.data; *env; env = nxt + 1) {
- for (nxt=env; *nxt; ++nxt) {
+ for (nxt = env; *nxt; ++nxt) {
if (nxt >= &environment.data[ENV_SIZE]) {
fprintf (stderr, "## Error: "
"environment not terminated\n");
return;
}
}
- val=envmatch(name, env);
+ val = envmatch (name, env);
if (val) {
if (!n_flag) {
fputs (name, stdout);
- putc ('=', stdout);
+ putc ('=', stdout);
}
- puts (val);
+ puts (val);
break;
}
}
if (!val)
- fprintf (stderr, "## Error: \"%s\" not defined\n",
- name);
+ fprintf (stderr, "## Error: \"%s\" not defined\n", name);
}
}
@@ -274,7 +275,7 @@ void fw_printenv(int argc, char *argv[])
*/
int fw_setenv (int argc, char *argv[])
{
- int i, len;
+ int i, len;
uchar *env, *nxt;
uchar *oldval = NULL;
uchar *name;
@@ -283,7 +284,7 @@ int fw_setenv (int argc, char *argv[])
return (EINVAL);
}
- if (env_init())
+ if (env_init ())
return (errno);
name = argv[1];
@@ -291,15 +292,15 @@ int fw_setenv (int argc, char *argv[])
/*
* search if variable with this name already exists
*/
- for (env=environment.data; *env; env=nxt+1) {
- for (nxt=env; *nxt; ++nxt) {
+ for (nxt = env = environment.data; *env; env = nxt + 1) {
+ for (nxt = env; *nxt; ++nxt) {
if (nxt >= &environment.data[ENV_SIZE]) {
fprintf (stderr, "## Error: "
"environment not terminated\n");
return (EINVAL);
}
}
- if ((oldval=envmatch(name, env)) != NULL)
+ if ((oldval = envmatch (name, env)) != NULL)
break;
}
@@ -311,7 +312,7 @@ int fw_setenv (int argc, char *argv[])
* Ethernet Address and serial# can be set only once
*/
if ((strcmp (name, "ethaddr") == 0) ||
- (strcmp (name, "serial#") == 0) ) {
+ (strcmp (name, "serial#") == 0)) {
fprintf (stderr, "Can't overwrite \"%s\"\n", name);
return (EROFS);
}
@@ -336,20 +337,19 @@ int fw_setenv (int argc, char *argv[])
/*
* Append new definition at the end
*/
- for (env=environment.data; *env || *(env+1); ++env)
- ;
+ for (env = environment.data; *env || *(env + 1); ++env);
if (env > environment.data)
++env;
/*
* Overflow when:
* "name" + "=" + "val" +"\0\0" > CFG_ENV_SIZE - (env-environment)
*/
- len = strlen(name) + 2;
+ len = strlen (name) + 2;
/* add '=' for first arg, ' ' for all others */
- for (i=2; i<argc; ++i) {
- len += strlen(argv[i]) + 1;
+ for (i = 2; i < argc; ++i) {
+ len += strlen (argv[i]) + 1;
}
- if (len > (&environment.data[ENV_SIZE]-env)) {
+ if (len > (&environment.data[ENV_SIZE] - env)) {
fprintf (stderr,
"Error: environment overflow, \"%s\" deleted\n",
name);
@@ -357,26 +357,24 @@ int fw_setenv (int argc, char *argv[])
}
while ((*env = *name++) != '\0')
env++;
- for (i=2; i<argc; ++i) {
+ for (i = 2; i < argc; ++i) {
uchar *val = argv[i];
- *env = (i==2) ? '=' : ' ';
- while ((*++env = *val++) != '\0')
- ;
+ *env = (i == 2) ? '=' : ' ';
+ while ((*++env = *val++) != '\0');
}
/* end is marked with double '\0' */
*++env = '\0';
-WRITE_FLASH:
+ WRITE_FLASH:
/* Update CRC */
- environment.crc = crc32(0, environment.data, ENV_SIZE);
+ environment.crc = crc32 (0, environment.data, ENV_SIZE);
/* write environment back to flash */
if (flash_io (O_RDWR)) {
- fprintf (stderr,
- "Error: can't write fw_env to flash\n");
+ fprintf (stderr, "Error: can't write fw_env to flash\n");
return (-1);
}
@@ -389,166 +387,172 @@ static int flash_io (int mode)
erase_info_t erase;
char *data;
- if ((fd = open(DEVNAME(curdev), mode)) < 0) {
- fprintf (stderr,
- "Can't open %s: %s\n",
- DEVNAME(curdev), strerror(errno));
+ if ((fd = open (DEVNAME (curdev), mode)) < 0) {
+ fprintf (stderr,
+ "Can't open %s: %s\n",
+ DEVNAME (curdev), strerror (errno));
return (-1);
}
- len = sizeof(environment.crc);
+ len = sizeof (environment.crc);
if (HaveRedundEnv) {
- len += sizeof(environment.flags);
+ len += sizeof (environment.flags);
}
if (mode == O_RDWR) {
if (HaveRedundEnv) {
/* switch to next partition for writing */
otherdev = !curdev;
- if ((fdr = open(DEVNAME(otherdev), mode)) < 0) {
- fprintf (stderr,
- "Can't open %s: %s\n",
- DEVNAME(otherdev), strerror(errno));
+ if ((fdr = open (DEVNAME (otherdev), mode)) < 0) {
+ fprintf (stderr,
+ "Can't open %s: %s\n",
+ DEVNAME (otherdev),
+ strerror (errno));
return (-1);
}
} else {
otherdev = curdev;
fdr = fd;
}
- printf("Unlocking flash...\n");
- erase.length = DEVESIZE(otherdev);
- erase.start = DEVOFFSET(otherdev);
+ printf ("Unlocking flash...\n");
+ erase.length = DEVESIZE (otherdev);
+ erase.start = DEVOFFSET (otherdev);
ioctl (fdr, MEMUNLOCK, &erase);
if (HaveRedundEnv) {
- erase.length = DEVESIZE(curdev);
- erase.start = DEVOFFSET(curdev);
+ erase.length = DEVESIZE (curdev);
+ erase.start = DEVOFFSET (curdev);
ioctl (fd, MEMUNLOCK, &erase);
environment.flags = active_flag;
}
- printf("Done\n");
- resid = DEVESIZE(otherdev) - CFG_ENV_SIZE;
+ printf ("Done\n");
+ resid = DEVESIZE (otherdev) - CFG_ENV_SIZE;
if (resid) {
- if ((data = malloc(resid)) == NULL) {
- fprintf(stderr,
- "Cannot malloc %d bytes: %s\n",
- resid, strerror(errno));
+ if ((data = malloc (resid)) == NULL) {
+ fprintf (stderr,
+ "Cannot malloc %d bytes: %s\n",
+ resid,
+ strerror (errno));
return (-1);
}
- if (lseek (fdr, DEVOFFSET(otherdev) + CFG_ENV_SIZE, SEEK_SET) == -1) {
- fprintf (stderr,
- "seek error on %s: %s\n",
- DEVNAME(otherdev), strerror(errno));
+ if (lseek (fdr, DEVOFFSET (otherdev) + CFG_ENV_SIZE, SEEK_SET)
+ == -1) {
+ fprintf (stderr, "seek error on %s: %s\n",
+ DEVNAME (otherdev),
+ strerror (errno));
return (-1);
}
if ((rc = read (fdr, data, resid)) != resid) {
fprintf (stderr,
- "read error on %s: %s\n",
- DEVNAME(otherdev), strerror(errno));
+ "read error on %s: %s\n",
+ DEVNAME (otherdev),
+ strerror (errno));
return (-1);
}
}
- printf("Erasing old environment...\n");
+ printf ("Erasing old environment...\n");
- erase.length = DEVESIZE(otherdev);
- erase.start = DEVOFFSET(otherdev);
+ erase.length = DEVESIZE (otherdev);
+ erase.start = DEVOFFSET (otherdev);
if (ioctl (fdr, MEMERASE, &erase) != 0) {
fprintf (stderr, "MTD erase error on %s: %s\n",
- DEVNAME(otherdev), strerror(errno));
+ DEVNAME (otherdev),
+ strerror (errno));
return (-1);
}
- printf("Done\n");
+ printf ("Done\n");
- printf("Writing environment to %s...\n",DEVNAME(otherdev));
- if (lseek (fdr, DEVOFFSET(otherdev), SEEK_SET) == -1) {
+ printf ("Writing environment to %s...\n", DEVNAME (otherdev));
+ if (lseek (fdr, DEVOFFSET (otherdev), SEEK_SET) == -1) {
fprintf (stderr,
- "seek error on %s: %s\n",
- DEVNAME(otherdev), strerror(errno));
+ "seek error on %s: %s\n",
+ DEVNAME (otherdev), strerror (errno));
return (-1);
}
- if (write(fdr, &environment, len) != len) {
+ if (write (fdr, &environment, len) != len) {
fprintf (stderr,
- "CRC write error on %s: %s\n",
- DEVNAME(otherdev), strerror(errno));
+ "CRC write error on %s: %s\n",
+ DEVNAME (otherdev), strerror (errno));
return (-1);
}
- if (write(fdr, environment.data, ENV_SIZE) != ENV_SIZE) {
+ if (write (fdr, environment.data, ENV_SIZE) != ENV_SIZE) {
fprintf (stderr,
- "Write error on %s: %s\n",
- DEVNAME(otherdev), strerror(errno));
+ "Write error on %s: %s\n",
+ DEVNAME (otherdev), strerror (errno));
return (-1);
}
if (resid) {
if (write (fdr, data, resid) != resid) {
fprintf (stderr,
- "write error on %s: %s\n",
- DEVNAME(curdev), strerror(errno));
+ "write error on %s: %s\n",
+ DEVNAME (curdev), strerror (errno));
return (-1);
}
- free(data);
+ free (data);
}
if (HaveRedundEnv) {
/* change flag on current active env partition */
- if (lseek (fd, DEVOFFSET(curdev) + sizeof(ulong), SEEK_SET) == -1) {
- fprintf (stderr,
- "seek error on %s: %s\n",
- DEVNAME(curdev), strerror(errno));
+ if (lseek (fd, DEVOFFSET (curdev) + sizeof (ulong), SEEK_SET)
+ == -1) {
+ fprintf (stderr, "seek error on %s: %s\n",
+ DEVNAME (curdev), strerror (errno));
return (-1);
}
- if (write (fd, &obsolete_flag, sizeof(obsolete_flag)) !=
- sizeof(obsolete_flag)) {
+ if (write (fd, &obsolete_flag, sizeof (obsolete_flag)) !=
+ sizeof (obsolete_flag)) {
fprintf (stderr,
- "Write error on %s: %s\n",
- DEVNAME(curdev), strerror(errno));
+ "Write error on %s: %s\n",
+ DEVNAME (curdev), strerror (errno));
return (-1);
}
}
- printf("Done\n");
- printf("Locking ...\n");
- erase.length = DEVESIZE(otherdev);
- erase.start = DEVOFFSET(otherdev);
+ printf ("Done\n");
+ printf ("Locking ...\n");
+ erase.length = DEVESIZE (otherdev);
+ erase.start = DEVOFFSET (otherdev);
ioctl (fdr, MEMLOCK, &erase);
if (HaveRedundEnv) {
- erase.length = DEVESIZE(curdev);
- erase.start = DEVOFFSET(curdev);
+ erase.length = DEVESIZE (curdev);
+ erase.start = DEVOFFSET (curdev);
ioctl (fd, MEMLOCK, &erase);
- if (close(fdr)) {
+ if (close (fdr)) {
fprintf (stderr,
- "I/O error on %s: %s\n",
- DEVNAME(otherdev), strerror(errno));
+ "I/O error on %s: %s\n",
+ DEVNAME (otherdev),
+ strerror (errno));
return (-1);
}
}
- printf("Done\n");
+ printf ("Done\n");
} else {
- if (lseek (fd, DEVOFFSET(curdev), SEEK_SET) == -1) {
+ if (lseek (fd, DEVOFFSET (curdev), SEEK_SET) == -1) {
fprintf (stderr,
- "seek error on %s: %s\n",
- DEVNAME(curdev), strerror(errno));
+ "seek error on %s: %s\n",
+ DEVNAME (curdev), strerror (errno));
return (-1);
}
if (read (fd, &environment, len) != len) {
fprintf (stderr,
- "CRC read error on %s: %s\n",
- DEVNAME(curdev), strerror(errno));
+ "CRC read error on %s: %s\n",
+ DEVNAME (curdev), strerror (errno));
return (-1);
}
if ((rc = read (fd, environment.data, ENV_SIZE)) != ENV_SIZE) {
fprintf (stderr,
- "Read error on %s: %s\n",
- DEVNAME(curdev), strerror(errno));
+ "Read error on %s: %s\n",
+ DEVNAME (curdev), strerror (errno));
return (-1);
}
}
- if (close(fd)) {
+ if (close (fd)) {
fprintf (stderr,
- "I/O error on %s: %s\n",
- DEVNAME(curdev), strerror(errno));
+ "I/O error on %s: %s\n",
+ DEVNAME (curdev), strerror (errno));
return (-1);
}
@@ -562,22 +566,21 @@ static int flash_io (int mode)
* If the names match, return the value of s2, else NULL.
*/
-static uchar *
-envmatch (uchar *s1, uchar *s2)
+static uchar *envmatch (uchar * s1, uchar * s2)
{
while (*s1 == *s2++)
if (*s1++ == '=')
- return(s2);
- if (*s1 == '\0' && *(s2-1) == '=')
- return(s2);
- return(NULL);
+ return (s2);
+ if (*s1 == '\0' && *(s2 - 1) == '=')
+ return (s2);
+ return (NULL);
}
/*
* Prevent confusion if running from erased flash memory
*/
-static int env_init(void)
+static int env_init (void)
{
int crc1, crc1_ok;
uchar *addr1;
@@ -585,151 +588,142 @@ static int env_init(void)
int crc2, crc2_ok;
uchar flag1, flag2, *addr2;
- if (parse_config()) /* should fill envdevices */
+ if (parse_config ()) /* should fill envdevices */
return 1;
-
+
if ((addr1 = calloc (1, ENV_SIZE)) == NULL) {
- fprintf (stderr,
- "Not enough memory for environment (%ld bytes)\n",
- ENV_SIZE);
+ fprintf (stderr,
+ "Not enough memory for environment (%ld bytes)\n",
+ ENV_SIZE);
return (errno);
}
-
+
/* read environment from FLASH to local buffer */
environment.data = addr1;
curdev = 0;
if (flash_io (O_RDONLY)) {
return (errno);
}
-
- crc1_ok = ((crc1 = crc32(0, environment.data, ENV_SIZE))
+
+ crc1_ok = ((crc1 = crc32 (0, environment.data, ENV_SIZE))
== environment.crc);
if (!HaveRedundEnv) {
if (!crc1_ok) {
- fprintf (stderr,
- "Warning: Bad CRC, using default environment\n");
+ fprintf (stderr,
+ "Warning: Bad CRC, using default environment\n");
environment.data = default_environment;
- free(addr1);
+ free (addr1);
}
} else {
flag1 = environment.flags;
-
+
curdev = 1;
if ((addr2 = calloc (1, ENV_SIZE)) == NULL) {
- fprintf (stderr,
- "Not enough memory for environment (%ld bytes)\n",
- ENV_SIZE);
+ fprintf (stderr,
+ "Not enough memory for environment (%ld bytes)\n",
+ ENV_SIZE);
return (errno);
- }
+ }
environment.data = addr2;
-
+
if (flash_io (O_RDONLY)) {
return (errno);
}
-
- crc2_ok = ((crc2 = crc32(0, environment.data, ENV_SIZE))
+
+ crc2_ok = ((crc2 = crc32 (0, environment.data, ENV_SIZE))
== environment.crc);
flag2 = environment.flags;
-
- if (crc1_ok && ! crc2_ok) {
- environment.data = addr1;
+
+ if (crc1_ok && !crc2_ok) {
+ environment.data = addr1;
environment.flags = flag1;
environment.crc = crc1;
curdev = 0;
- free(addr2);
- }
- else if (! crc1_ok && crc2_ok) {
- environment.data = addr2;
+ free (addr2);
+ } else if (!crc1_ok && crc2_ok) {
+ environment.data = addr2;
environment.flags = flag2;
environment.crc = crc2;
curdev = 1;
- free(addr1);
- }
- else if (! crc1_ok && ! crc2_ok) {
- fprintf (stderr,
- "Warning: Bad CRC, using default environment\n");
+ free (addr1);
+ } else if (!crc1_ok && !crc2_ok) {
+ fprintf (stderr,
+ "Warning: Bad CRC, using default environment\n");
environment.data = default_environment;
curdev = 0;
- free(addr2);
- free(addr1);
- }
- else if (flag1 == active_flag && flag2 == obsolete_flag) {
- environment.data = addr1;
+ free (addr2);
+ free (addr1);
+ } else if (flag1 == active_flag && flag2 == obsolete_flag) {
+ environment.data = addr1;
environment.flags = flag1;
environment.crc = crc1;
curdev = 0;
- free(addr2);
- }
- else if (flag1 == obsolete_flag && flag2 == active_flag) {
- environment.data = addr2;
+ free (addr2);
+ } else if (flag1 == obsolete_flag && flag2 == active_flag) {
+ environment.data = addr2;
environment.flags = flag2;
environment.crc = crc2;
curdev = 1;
- free(addr1);
- }
- else if (flag1 == flag2) {
- environment.data = addr1;
+ free (addr1);
+ } else if (flag1 == flag2) {
+ environment.data = addr1;
environment.flags = flag1;
environment.crc = crc1;
curdev = 0;
- free(addr2);
- }
- else if (flag1 == 0xFF) {
- environment.data = addr1;
+ free (addr2);
+ } else if (flag1 == 0xFF) {
+ environment.data = addr1;
environment.flags = flag1;
environment.crc = crc1;
curdev = 0;
- free(addr2);
- }
- else if (flag2 == 0xFF) {
- environment.data = addr2;
+ free (addr2);
+ } else if (flag2 == 0xFF) {
+ environment.data = addr2;
environment.flags = flag2;
environment.crc = crc2;
curdev = 1;
- free(addr1);
+ free (addr1);
}
}
return (0);
}
-static int parse_config()
+static int parse_config ()
{
struct stat st;
#if defined(CONFIG_FILE)
/* Fills in DEVNAME(), ENVSIZE(), DEVESIZE(). Or don't. */
- if (get_config(CONFIG_FILE)) {
+ if (get_config (CONFIG_FILE)) {
fprintf (stderr,
- "Cannot parse config file: %s\n",
- strerror(errno));
+ "Cannot parse config file: %s\n", strerror (errno));
return 1;
}
-
#else
- strcpy(DEVNAME(0), DEVICE1_NAME);
- DEVOFFSET(0) = DEVICE1_OFFSET;
- ENVSIZE(0) = ENV1_SIZE;
- DEVESIZE(0) = DEVICE1_ESIZE;
+ strcpy (DEVNAME (0), DEVICE1_NAME);
+ DEVOFFSET (0) = DEVICE1_OFFSET;
+ ENVSIZE (0) = ENV1_SIZE;
+ DEVESIZE (0) = DEVICE1_ESIZE;
#ifdef HAVE_REDUND
- strcpy(DEVNAME(1), DEVICE2_NAME);
- DEVOFFSET(1) = DEVICE2_OFFSET;
- ENVSIZE(1) = ENV2_SIZE;
- DEVESIZE(1) = DEVICE2_ESIZE;
+ strcpy (DEVNAME (1), DEVICE2_NAME);
+ DEVOFFSET (1) = DEVICE2_OFFSET;
+ ENVSIZE (1) = ENV2_SIZE;
+ DEVESIZE (1) = DEVICE2_ESIZE;
HaveRedundEnv = 1;
#endif
#endif
- if (stat (DEVNAME(0), &st)) {
- fprintf (stderr,
- "Cannot access MTD device %s: %s\n",
- DEVNAME(0), strerror(errno));
+ if (stat (DEVNAME (0), &st)) {
+ fprintf (stderr,
+ "Cannot access MTD device %s: %s\n",
+ DEVNAME (0), strerror (errno));
return 1;
}
-
- if (HaveRedundEnv && stat (DEVNAME(1), &st)) {
- fprintf (stderr,
- "Cannot access MTD device %s: %s\n",
- DEVNAME(2), strerror(errno));
+
+ if (HaveRedundEnv && stat (DEVNAME (1), &st)) {
+ fprintf (stderr,
+ "Cannot access MTD device %s: %s\n",
+ DEVNAME (2), strerror (errno));
return 1;
}
return 0;
@@ -743,26 +737,28 @@ static int get_config (char *fname)
int rc;
char dump[128];
- if ((fp = fopen(fname, "r")) == NULL) {
+ if ((fp = fopen (fname, "r")) == NULL) {
return 1;
}
- while ((i < 2) &&
- ((rc = fscanf (fp, "%s %lx %lx %lx",
- DEVNAME(i), &DEVOFFSET(i), &ENVSIZE(i), &DEVESIZE(i))) != EOF)) {
+ while ((i < 2) && ((rc = fscanf (fp, "%s %lx %lx %lx",
+ DEVNAME (i),
+ &DEVOFFSET (i),
+ &ENVSIZE (i),
+ &DEVESIZE (i) )) != EOF)) {
/* Skip incomplete conversions and comment strings */
- if ((rc < 3) || (*DEVNAME(i) == '#')) {
- fgets (dump, sizeof(dump), fp); /* Consume till end */
+ if ((rc < 3) || (*DEVNAME (i) == '#')) {
+ fgets (dump, sizeof (dump), fp); /* Consume till end */
continue;
}
i++;
}
- fclose(fp);
-
+ fclose (fp);
+
HaveRedundEnv = i - 1;
- if (!i) { /* No valid entries found */
+ if (!i) { /* No valid entries found */
errno = EINVAL;
return 1;
} else
generated by cgit v1.1 at 2024-11-26 20:36:33 +0000