The function names utf16_strlen() and utf16_strnlen() are misnomers. The functions do not count utf-16 characters but non-zero words. So let's rename them to u16_strlen and u16_strnlen().
In utf16_dup() avoid assignment in if clause.
Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- include/charset.h | 28 +++++++++++----------------- lib/charset.c | 10 +++++++--- lib/efi_loader/efi_bootmgr.c | 2 +- lib/efi_loader/efi_console.c | 2 +- lib/efi_loader/efi_file.c | 2 +- lib/efi_loader/efi_variable.c | 2 +- lib/vsprintf.c | 2 +- 7 files changed, 23 insertions(+), 25 deletions(-)
diff --git a/include/charset.h b/include/charset.h index 11832cbd12..2307559890 100644 --- a/include/charset.h +++ b/include/charset.h @@ -13,29 +13,23 @@ #define MAX_UTF8_PER_UTF16 3
/** - * utf16_strlen() - Get the length of an utf16 string + * u16_strlen - count non-zero words * - * Returns the number of 16 bit characters in an utf16 string, not - * including the terminating NULL character. - * - * @in the string to measure - * @return the string length + * @in: utf-16 string + * ReturnValue: number of non-zero words. + * This is not the number of utf-16 letters! */ -size_t utf16_strlen(const uint16_t *in); +size_t u16_strlen(const u16 *in);
/** - * utf16_strnlen() - Get the length of a fixed-size utf16 string. - * - * Returns the number of 16 bit characters in an utf16 string, - * not including the terminating NULL character, but at most - * 'count' number of characters. In doing this, utf16_strnlen() - * looks at only the first 'count' characters. + * u16_strlen - count non-zero words * - * @in the string to measure - * @count the maximum number of characters to count - * @return the string length, up to a maximum of 'count' + * @in: utf-16 string + * @count: maximum number of words to count + * ReturnValue: number of non-zero words. + * This is not the number of utf-16 letters! */ -size_t utf16_strnlen(const uint16_t *in, size_t count); +size_t u16_strnlen(const u16 *in, size_t count);
/** * utf16_strcpy() - UTF16 equivalent of strcpy() diff --git a/lib/charset.c b/lib/charset.c index cd186a5a5a..8ff8d59957 100644 --- a/lib/charset.c +++ b/lib/charset.c @@ -12,14 +12,14 @@ * utf8/utf16 conversion mostly lifted from grub */
-size_t utf16_strlen(const uint16_t *in) +size_t u16_strlen(const u16 *in) { size_t i; for (i = 0; in[i]; i++); return i; }
-size_t utf16_strnlen(const uint16_t *in, size_t count) +size_t u16_strnlen(const u16 *in, size_t count) { size_t i; for (i = 0; count-- && in[i]; i++); @@ -39,7 +39,11 @@ uint16_t *utf16_strcpy(uint16_t *dest, const uint16_t *src) uint16_t *utf16_strdup(const uint16_t *s) { uint16_t *new; - if (!s || !(new = malloc((utf16_strlen(s) + 1) * 2))) + + if (!s) + return NULL; + new = malloc((u16_strlen(s) + 1) * 2); + if (!new) return NULL; utf16_strcpy(new, s); return new; diff --git a/lib/efi_loader/efi_bootmgr.c b/lib/efi_loader/efi_bootmgr.c index 853358ab93..0c5764db12 100644 --- a/lib/efi_loader/efi_bootmgr.c +++ b/lib/efi_loader/efi_bootmgr.c @@ -60,7 +60,7 @@ static void parse_load_option(struct load_option *lo, void *ptr) ptr += sizeof(u16);
lo->label = ptr; - ptr += (utf16_strlen(lo->label) + 1) * 2; + ptr += (u16_strlen(lo->label) + 1) * 2;
lo->file_path = ptr; ptr += lo->file_path_length; diff --git a/lib/efi_loader/efi_console.c b/lib/efi_loader/efi_console.c index b487288785..f3d612880c 100644 --- a/lib/efi_loader/efi_console.c +++ b/lib/efi_loader/efi_console.c @@ -114,7 +114,7 @@ static efi_status_t EFIAPI efi_cout_output_string(
EFI_ENTRY("%p, %p", this, string);
- unsigned int n16 = utf16_strlen(string); + unsigned int n16 = u16_strlen(string); char buf[MAX_UTF8_PER_UTF16 * n16 + 1]; u16 *p;
diff --git a/lib/efi_loader/efi_file.c b/lib/efi_loader/efi_file.c index e6a15bcb52..c21881b32c 100644 --- a/lib/efi_loader/efi_file.c +++ b/lib/efi_loader/efi_file.c @@ -139,7 +139,7 @@ static struct efi_file_handle *file_open(struct file_system *fs,
if (file_name) { utf16_to_utf8((u8 *)f0, (u16 *)file_name, 1); - flen = utf16_strlen((u16 *)file_name); + flen = u16_strlen((u16 *)file_name); }
/* we could have a parent, but also an absolute path: */ diff --git a/lib/efi_loader/efi_variable.c b/lib/efi_loader/efi_variable.c index 90b637215e..770c67abb9 100644 --- a/lib/efi_loader/efi_variable.c +++ b/lib/efi_loader/efi_variable.c @@ -106,7 +106,7 @@ static efi_status_t efi_to_native(char *native, u16 *variable_name, { size_t len;
- len = utf16_strlen((u16 *)variable_name); + len = u16_strlen((u16 *)variable_name); if (len >= MAX_VAR_NAME) return EFI_DEVICE_ERROR;
diff --git a/lib/vsprintf.c b/lib/vsprintf.c index 6100357858..a07128ad96 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -280,7 +280,7 @@ static char *string16(char *buf, char *end, u16 *s, int field_width, int precision, int flags) { u16 *str = s ? s : L"<NULL>"; - int utf16_len = utf16_strnlen(str, precision); + int utf16_len = u16_strnlen(str, precision); u8 utf8[utf16_len * MAX_UTF8_PER_UTF16]; int utf8_len, i;