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-rw-r--r--package/utils/nvram/src/nvram.c27
1 files changed, 14 insertions, 13 deletions
diff --git a/package/utils/nvram/src/nvram.c b/package/utils/nvram/src/nvram.c
index b3ef4262a5..605b4e1141 100644
--- a/package/utils/nvram/src/nvram.c
+++ b/package/utils/nvram/src/nvram.c
@@ -18,7 +18,8 @@
printf("%s(%i) in %s(): %s\n", \
__FILE__, __LINE__, __FUNCTION__, msg ? msg : "?")
-size_t nvram_erase_size = 0;
+/* Size of "nvram" MTD partition */
+size_t nvram_part_size = 0;
/*
@@ -345,10 +346,10 @@ nvram_handle_t * nvram_open(const char *file, int rdonly)
int offset = -1;
/* If erase size or file are undefined then try to define them */
- if( (nvram_erase_size == 0) || (file == NULL) )
+ if( (nvram_part_size == 0) || (file == NULL) )
{
/* Finding the mtd will set the appropriate erase size */
- if( (mtd = nvram_find_mtd()) == NULL || nvram_erase_size == 0 )
+ if( (mtd = nvram_find_mtd()) == NULL || nvram_part_size == 0 )
{
free(mtd);
return NULL;
@@ -358,12 +359,12 @@ nvram_handle_t * nvram_open(const char *file, int rdonly)
if( (fd = open(file ? file : mtd, O_RDWR)) > -1 )
{
char *mmap_area = (char *) mmap(
- NULL, nvram_erase_size, PROT_READ | PROT_WRITE,
+ NULL, nvram_part_size, PROT_READ | PROT_WRITE,
(( rdonly == NVRAM_RO ) ? MAP_PRIVATE : MAP_SHARED) | MAP_LOCKED, fd, 0);
if( mmap_area != MAP_FAILED )
{
- for( i = 0; i <= ((nvram_erase_size - NVRAM_SPACE) / sizeof(uint32_t)); i++ )
+ for( i = 0; i <= ((nvram_part_size - NVRAM_SPACE) / sizeof(uint32_t)); i++ )
{
if( ((uint32_t *)mmap_area)[i] == NVRAM_MAGIC )
{
@@ -383,7 +384,7 @@ nvram_handle_t * nvram_open(const char *file, int rdonly)
h->fd = fd;
h->mmap = mmap_area;
- h->length = nvram_erase_size;
+ h->length = nvram_part_size;
h->offset = offset;
header = nvram_header(h);
@@ -422,7 +423,7 @@ int nvram_close(nvram_handle_t *h)
char * nvram_find_mtd(void)
{
FILE *fp;
- int i, esz;
+ int i, part_size;
char dev[PATH_MAX];
char *path = NULL;
struct stat s;
@@ -441,9 +442,9 @@ char * nvram_find_mtd(void)
{
while( fgets(dev, sizeof(dev), fp) )
{
- if( strstr(dev, "nvram") && sscanf(dev, "mtd%d: %08x", &i, &esz) )
+ if( strstr(dev, "nvram") && sscanf(dev, "mtd%d: %08x", &i, &part_size) )
{
- nvram_erase_size = esz;
+ nvram_part_size = part_size;
sprintf(dev, "/dev/mtdblock%d", i);
if( stat(dev, &s) > -1 && (s.st_mode & S_IFBLK) )
@@ -480,11 +481,11 @@ int nvram_to_staging(void)
{
int fdmtd, fdstg, stat;
char *mtd = nvram_find_mtd();
- char buf[nvram_erase_size];
+ char buf[nvram_part_size];
stat = -1;
- if( (mtd != NULL) && (nvram_erase_size > 0) )
+ if( (mtd != NULL) && (nvram_part_size > 0) )
{
if( (fdmtd = open(mtd, O_RDONLY)) > -1 )
{
@@ -513,11 +514,11 @@ int staging_to_nvram(void)
{
int fdmtd, fdstg, stat;
char *mtd = nvram_find_mtd();
- char buf[nvram_erase_size];
+ char buf[nvram_part_size];
stat = -1;
- if( (mtd != NULL) && (nvram_erase_size > 0) )
+ if( (mtd != NULL) && (nvram_part_size > 0) )
{
if( (fdstg = open(NVRAM_STAGING, O_RDONLY)) > -1 )
{