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Diffstat (limited to 'lib/libefivar/libefivar.c')
| -rw-r--r-- | lib/libefivar/libefivar.c | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/lib/libefivar/libefivar.c b/lib/libefivar/libefivar.c deleted file mode 100644 index 951c484f5e3a..000000000000 --- a/lib/libefivar/libefivar.c +++ /dev/null @@ -1,188 +0,0 @@ -/*- - * Copyright (c) 2010 Marcel Moolenaar - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/types.h> -#include <errno.h> -#include <stddef.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <sys/efi.h> -#include <machine/efi.h> - -#include "libefivar_int.h" - -#include <stdio.h> - -/* - * If nm were converted to utf8, what what would strlen - * return on the resulting string? - */ -static size_t -utf8_len_of_ucs2(const efi_char *nm) -{ - size_t len; - efi_char c; - - len = 0; - while (*nm) { - c = *nm++; - if (c > 0x7ff) - len += 3; - else if (c > 0x7f) - len += 2; - else - len++; - } - - return (len); -} - -int -libefi_ucs2_to_utf8(const efi_char *nm, char **name) -{ - size_t len, sz; - efi_char c; - char *cp; - int freeit = *name == NULL; - - sz = utf8_len_of_ucs2(nm) + 1; - len = 0; - if (*name != NULL) - cp = *name; - else - cp = *name = malloc(sz); - if (*name == NULL) - return (ENOMEM); - - while (*nm) { - c = *nm++; - if (c > 0x7ff) { - if (len++ < sz) - *cp++ = (char)(0xE0 | (c >> 12)); - if (len++ < sz) - *cp++ = (char)(0x80 | ((c >> 6) & 0x3f)); - if (len++ < sz) - *cp++ = (char)(0x80 | (c & 0x3f)); - } else if (c > 0x7f) { - if (len++ < sz) - *cp++ = (char)(0xC0 | ((c >> 6) & 0x1f)); - if (len++ < sz) - *cp++ = (char)(0x80 | (c & 0x3f)); - } else { - if (len++ < sz) - *cp++ = (char)(c & 0x7f); - } - } - - if (len >= sz) { - /* Absent bugs, we'll never return EOVERFLOW */ - if (freeit) - free(*name); - return (EOVERFLOW); - } - *cp++ = '\0'; - - return (0); -} - -int -libefi_utf8_to_ucs2(const char *name, efi_char **nmp, size_t *len) -{ - efi_char *nm; - size_t sz; - uint32_t ucs4; - int c, bytes; - int freeit = *nmp == NULL; - - sz = strlen(name) * 2 + 2; - if (*nmp == NULL) - *nmp = malloc(sz); - nm = *nmp; - *len = sz; - - ucs4 = 0; - bytes = 0; - while (sz > 1 && *name != '\0') { - c = *name++; - /* - * Conditionalize on the two major character types: - * initial and followup characters. - */ - if ((c & 0xc0) != 0x80) { - /* Initial characters. */ - if (bytes != 0) { - if (freeit) - free(nm); - return (EILSEQ); - } - if ((c & 0xf8) == 0xf0) { - ucs4 = c & 0x07; - bytes = 3; - } else if ((c & 0xf0) == 0xe0) { - ucs4 = c & 0x0f; - bytes = 2; - } else if ((c & 0xe0) == 0xc0) { - ucs4 = c & 0x1f; - bytes = 1; - } else { - ucs4 = c & 0x7f; - bytes = 0; - } - } else { - /* Followup characters. */ - if (bytes > 0) { - ucs4 = (ucs4 << 6) + (c & 0x3f); - bytes--; - } else if (bytes == 0) { - if (freeit) - free(nm); - return (EILSEQ); - } - } - if (bytes == 0) { - if (ucs4 > 0xffff) { - if (freeit) - free(nm); - return (EILSEQ); - } - *nm++ = (efi_char)ucs4; - sz -= 2; - } - } - if (sz < 2) { - if (freeit) - free(nm); - return (EDOOFUS); - } - sz -= 2; - *nm = 0; - *len -= sz; - return (0); -} |