exFAT file system implementation library.
Free exFAT implementation.
- Copyright (C) 2010-2018 Andrew Nayenko
+ Copyright (C) 2010-2023 Andrew Nayenko
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
return strtol(p, NULL, base);
}
-static bool match_option(const char* options, const char* option_name)
-{
- const char* p;
- size_t length = strlen(option_name);
-
- for (p = strstr(options, option_name); p; p = strstr(p + 1, option_name))
- if ((p == options || p[-1] == ',') &&
- (p[length] == ',' || p[length] == '\0'))
- return true;
- return false;
-}
-
static void parse_options(struct exfat* ef, const char* options)
{
int opt_umask;
ef->uid = get_int_option(options, "uid", 10, geteuid());
ef->gid = get_int_option(options, "gid", 10, getegid());
- ef->noatime = match_option(options, "noatime");
+ ef->noatime = exfat_match_option(options, "noatime");
switch (get_int_option(options, "repair", 10, 0))
{
{
off_t sector_size = SECTOR_SIZE(*ef->sb);
uint32_t vbr_checksum;
- int i;
+ size_t i;
if (exfat_pread(ef->dev, sector, sector_size, 0) < 0)
{
return exfat_fsync(ef->dev);
}
-static int prepare_super_block(const struct exfat* ef)
+int exfat_soil_super_block(const struct exfat* ef)
{
- if (le16_to_cpu(ef->sb->volume_state) & EXFAT_STATE_MOUNTED)
- exfat_warn("volume was not unmounted cleanly");
-
if (ef->ro)
return 0;
parse_options(ef, options);
- if (match_option(options, "ro"))
+ if (exfat_match_option(options, "ro"))
mode = EXFAT_MODE_RO;
- else if (match_option(options, "ro_fallback"))
+ else if (exfat_match_option(options, "ro_fallback"))
mode = EXFAT_MODE_ANY;
else
mode = EXFAT_MODE_RW;
ef->dev = exfat_open(spec, mode);
if (ef->dev == NULL)
- return -EIO;
+ return -ENODEV;
if (exfat_get_mode(ef->dev) == EXFAT_MODE_RO)
{
if (mode == EXFAT_MODE_ANY)
return -EIO;
}
if (le64_to_cpu(ef->sb->sector_count) * SECTOR_SIZE(*ef->sb) >
- exfat_get_size(ef->dev))
+ (uint64_t) exfat_get_size(ef->dev))
{
/* this can cause I/O errors later but we don't fail mounting to let
user rescue data */
exfat_free(ef);
return -EIO;
}
+ if (le16_to_cpu(ef->sb->volume_state) & EXFAT_STATE_MOUNTED)
+ exfat_warn("volume was not unmounted cleanly");
ef->root = malloc(sizeof(struct exfat_node));
if (ef->root == NULL)
ef->root->start_cluster = le32_to_cpu(ef->sb->rootdir_cluster);
ef->root->fptr_cluster = ef->root->start_cluster;
ef->root->name[0] = cpu_to_le16('\0');
- ef->root->size = rootdir_size(ef);
+ ef->root->valid_size = ef->root->size = rootdir_size(ef);
if (ef->root->size == 0)
{
exfat_free(ef);
goto error;
}
- if (prepare_super_block(ef) != 0)
- goto error;
-
return 0;
error: