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ram_fs: treat symlinks as opaque data

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Fixes #1604
This commit is contained in:
Emery Hemingway 2015-07-07 15:45:37 -05:00 committed by Norman Feske
parent 2f1db06deb
commit 8f4f1ae89c
1 changed files with 9 additions and 8 deletions
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17
repos/os/src/server/ram_fs/symlink.h
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@ -16,16 +16,17 @@ namespace File_system {
{
private:
char _link_to[MAX_PATH_LEN];
char _link_to[MAX_PATH_LEN];
size_t _len;
public:
Symlink(char const *name) { Node::name(name); }
Symlink(char const *name): _len(0) { Node::name(name); }
size_t read(char *dst, size_t len, seek_off_t seek_offset)
{
size_t count = min(len, sizeof(_link_to) + 1);
Genode::strncpy(dst, _link_to, count);
size_t count = min(len, _len-seek_offset);
Genode::memcpy(dst, _link_to+seek_offset, count);
return count;
}
@ -34,12 +35,12 @@ namespace File_system {
/* Ideal symlink operations are atomic. */
if (seek_offset) return 0;
size_t count = min(len, sizeof(_link_to) + 1);
Genode::strncpy(_link_to, src, count);
return count;
_len = min(len, sizeof(_link_to));
Genode::memcpy(_link_to, src, _len);
return _len;
}
file_size_t length() const { return strlen(_link_to) + 1; }
file_size_t length() const { return _len; }
};
}