diff options
Diffstat (limited to 'ubi-utils/src/libubiold_sysfs.c')
| -rw-r--r-- | ubi-utils/src/libubiold_sysfs.c | 232 |
1 files changed, 0 insertions, 232 deletions
diff --git a/ubi-utils/src/libubiold_sysfs.c b/ubi-utils/src/libubiold_sysfs.c deleted file mode 100644 index 5b42075..0000000 --- a/ubi-utils/src/libubiold_sysfs.c +++ /dev/null @@ -1,232 +0,0 @@ -/* - * Copyright (c) International Business Machines Corp., 2006 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * 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 GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -/* - * UBI (Unsorted Block Images) library. - * - * Author: Artem B. Bityutskiy - */ - -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <fcntl.h> -#include <sys/stat.h> -#include <unistd.h> -#include <limits.h> -#include <errno.h> -#include <stdarg.h> - -#include "config.h" -#include "libubiold_int.h" - -int -sysfs_read_data(const char *file, void *buf, int len) -{ - int fd; - ssize_t rd; - - fd = open(file, O_RDONLY); - if (fd == -1) { - ubi_err("cannot open file %s", file); - return -1; - } - - rd = read(fd, buf, len); - if (rd == -1) - ubi_err("cannot read file %s", file); - - close(fd); - - return rd; -} - -int -sysfs_read_data_subst(const char *patt, void *buf, int len, int n, ...) -{ - va_list args; - char buf1[strlen(patt) + 20 * n]; - - va_start(args, n); - vsprintf(&buf1[0], patt, args); - va_end(args); - - return sysfs_read_data(&buf1[0], buf, len); -} - -int -sysfs_read_dev(const char *file, unsigned int *major, unsigned int *minor) -{ - int fd; - int ret; - ssize_t rd; - int err = -1; - char buf[40]; - - fd = open(file, O_RDONLY); - if (fd == -1) { - ubi_err("cannot open file %s", file); - return -1; - } - - rd = read(fd, &buf[0], 20); - if (rd == -1) { - ubi_err("cannot read file %s", file); - goto error; - } - if (rd < 4) { - ubi_err("bad contents of file %s:", file); - goto error; - } - - err = -1; - if (buf[rd -1] != '\n') { - ubi_err("bad contents of file %s", file); - goto error; - } - - ret = sscanf(&buf[0], "%d:%d\n", major, minor); - if (ret != 2) { - ubi_err("bad contents of file %s", file); - goto error; - } - - err = 0; - -error: - close(fd); - - return err; -} - -int -sysfs_read_dev_subst(const char *patt, unsigned int *major, - unsigned int *minor, int n, ...) -{ - va_list args; - char buf[strlen(patt) + 20 * n]; - - va_start(args, n); - vsprintf(&buf[0], patt, args); - va_end(args); - - return sysfs_read_dev(&buf[0], major, minor); -} - -static int -sysfs_read_ull(const char *file ubi_unused, unsigned long long *num ubi_unused) -{ - return 0; -} - -int -sysfs_read_ull_subst(const char *patt, unsigned long long *num, int n, ...) -{ - va_list args; - char buf[strlen(patt) + 20 * n]; - - va_start(args, n); - vsprintf(&buf[0], patt, args); - va_end(args); - - return sysfs_read_ull(&buf[0], num); -} - -static int -sysfs_read_uint(const char *file ubi_unused, unsigned int *num ubi_unused) -{ - return 0; -} - -int -sysfs_read_uint_subst(const char *patt, unsigned int *num, int n, ...) -{ - va_list args; - char buf[strlen(patt) + 20 * n]; - - va_start(args, n); - vsprintf(&buf[0], patt, args); - va_end(args); - - return sysfs_read_uint(&buf[0], num); -} - -int -sysfs_read_ll(const char *file, long long *num) -{ - int fd; - ssize_t rd; - int err = -1; - char buf[20]; - char *endptr; - - fd = open(file, O_RDONLY); - if (fd == -1) - return -1; - - rd = read(fd, &buf[0], 20); - if (rd == -1) - goto out; - - if (rd < 2) { - ubi_err("bad contents in file %s: \"%c%c...\"", - file, buf[0], buf[1]); - goto out_errno; - } - - *num = strtoll(&buf[0], &endptr, 10); - if (endptr == &buf[0] || *endptr != '\n') { - ubi_err("bad contents in file %s: \"%c%c...\"", - file, buf[0], buf[1]); - goto out_errno; - } - - if (*num < 0) { - ubi_err("bad number in file %s: %lld", file, *num); - goto out_errno; - } - - err = 0; - -out_errno: - errno = EINVAL; - -out: - close(fd); - return err; -} - -int -sysfs_read_int(const char *file, int *num) -{ - int err; - long long res = 0; - - err = sysfs_read_ll(file, &res); - if (err) - return err; - - if (res < 0 || res > INT_MAX) { - ubi_err("bad number in file %s: %lld", file, res); - errno = EINVAL; - return -1; - } - - *num = res; - return 0; -} |