diff options
Diffstat (limited to 'package/utils')
| -rw-r--r-- | package/utils/nvram/src/nvram.c | 27 |
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 ) { |