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author | Jo-Philipp Wich <jow@openwrt.org> | 2009-04-27 12:57:57 +0000 |
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committer | Jo-Philipp Wich <jow@openwrt.org> | 2009-04-27 12:57:57 +0000 |
commit | ace455e0c0a91444b232688a014cd358847f3c69 (patch) | |
tree | 3954dc33cb4c0855f125af58dc696a2b893a5ddf /package/nvram/src/nvram.c | |
parent | 6eec3954effc6702e2f8459b27d77d5fe86e8c60 (diff) | |
download | mtk-20170518-ace455e0c0a91444b232688a014cd358847f3c69.zip mtk-20170518-ace455e0c0a91444b232688a014cd358847f3c69.tar.gz mtk-20170518-ace455e0c0a91444b232688a014cd358847f3c69.tar.bz2 |
remove old nvram package
SVN-Revision: 15436
Diffstat (limited to 'package/nvram/src/nvram.c')
-rw-r--r-- | package/nvram/src/nvram.c | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/package/nvram/src/nvram.c b/package/nvram/src/nvram.c deleted file mode 100644 index 47d09a3..0000000 --- a/package/nvram/src/nvram.c +++ /dev/null @@ -1,188 +0,0 @@ -/* - * NVRAM variable manipulation (Linux user mode half) - * - * Copyright 2004, Broadcom Corporation - * All Rights Reserved. - * - * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY - * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM - * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS - * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE. - * - */ - -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <errno.h> -#include <error.h> -#include <string.h> -#include <sys/ioctl.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> -#include <sys/mman.h> - -#include <typedefs.h> -#include <bcmnvram.h> -#include <shutils.h> - -#define PATH_DEV_NVRAM "/dev/nvram" - -/* Globals */ -static int nvram_fd = -1; -static char *nvram_buf = NULL; -int file_to_buf(char *path, char *buf, int len); - -int -nvram_init(void *unused) -{ - if ((nvram_fd = open(PATH_DEV_NVRAM, O_RDWR)) < 0) - goto err; - - /* Map kernel string buffer into user space */ - if ((nvram_buf = mmap(NULL, NVRAM_SPACE, PROT_READ, MAP_SHARED, nvram_fd, 0)) == MAP_FAILED) { - close(nvram_fd); - nvram_fd = -1; - goto err; - } - - return 0; - - err: - perror(PATH_DEV_NVRAM); - return errno; -} - -char * -nvram_get(const char *name) -{ - size_t count = strlen(name) + 1; - char tmp[100], *value; - unsigned long *off = (unsigned long *) tmp; - - if (nvram_fd < 0) - if (nvram_init(NULL)) - return NULL; - - if (count > sizeof(tmp)) { - if (!(off = malloc(count))) - return NULL; - } - - /* Get offset into mmap() space */ - strcpy((char *) off, name); - - count = read(nvram_fd, off, count); - - if (count == sizeof(unsigned long)) - value = &nvram_buf[*off]; - else - value = NULL; - - if (count < 0) - perror(PATH_DEV_NVRAM); - - if (off != (unsigned long *) tmp) - free(off); - - return value; -} - -int -nvram_getall(char *buf, int count) -{ - int ret; - - if (nvram_fd < 0) - if ((ret = nvram_init(NULL))) - return ret; - - if (count == 0) - return 0; - - /* Get all variables */ - *buf = '\0'; - - ret = read(nvram_fd, buf, count); - - if (ret < 0) - perror(PATH_DEV_NVRAM); - - return (ret == count) ? 0 : ret; -} - -int -nvram_set(const char *name, const char *value) -{ - size_t count = strlen(name) + 1; - char tmp[100], *buf = tmp; - int ret; - - if (nvram_fd < 0) - if ((ret = nvram_init(NULL))) - return ret; - - /* Unset if value is NULL */ - if (value) - count += strlen(value) + 1; - - if (count > sizeof(tmp)) { - if (!(buf = malloc(count))) - return -ENOMEM; - } - - if (value) - sprintf(buf, "%s=%s", name, value); - else - strcpy(buf, name); - - ret = write(nvram_fd, buf, count); - - if (ret < 0) - perror(PATH_DEV_NVRAM); - - if (buf != tmp) - free(buf); - - return (ret == count) ? 0 : ret; -} - -int -nvram_unset(const char *name) -{ - return nvram_set(name, NULL); -} - -int -nvram_commit(void) -{ - int ret; - - if (nvram_fd < 0) - if ((ret = nvram_init(NULL))) - return ret; - - ret = ioctl(nvram_fd, NVRAM_MAGIC, NULL); - - if (ret < 0) - perror(PATH_DEV_NVRAM); - - return ret; -} - -int -file_to_buf(char *path, char *buf, int len) -{ - FILE *fp; - - memset(buf, 0 , len); - - if ((fp = fopen(path, "r"))) { - fgets(buf, len, fp); - fclose(fp); - return 1; - } - - return 0; -} |