diff options
Diffstat (limited to 'lib/mbsrtowcs.c')
| -rw-r--r-- | lib/mbsrtowcs.c | 166 |
1 files changed, 83 insertions, 83 deletions
diff --git a/lib/mbsrtowcs.c b/lib/mbsrtowcs.c index ea6a018721..b31356cedf 100644 --- a/lib/mbsrtowcs.c +++ b/lib/mbsrtowcs.c @@ -39,92 +39,92 @@ mbsrtowcs (wchar_t *dest, const char **srcp, size_t len, mbstate_t *ps) if (dest != NULL) { - wchar_t *destptr = dest; - - for (; len > 0; destptr++, len--) - { - size_t src_avail; - size_t ret; - - /* An optimized variant of - src_avail = strnlen1 (src, MB_LEN_MAX); */ - if (src[0] == '\0') - src_avail = 1; - else if (src[1] == '\0') - src_avail = 2; - else if (src[2] == '\0') - src_avail = 3; - else if (MB_LEN_MAX <= 4 || src[3] == '\0') - src_avail = 4; - else - src_avail = 4 + strnlen1 (src + 4, MB_LEN_MAX - 4); - - /* Parse the next multibyte character. */ - ret = mbrtowc (destptr, src, src_avail, ps); - - if (ret == (size_t)(-2)) - /* Encountered a multibyte character that extends past a '\0' byte - or that is longer than MB_LEN_MAX bytes. Cannot happen. */ - abort (); - - if (ret == (size_t)(-1)) - goto bad_input; - if (ret == 0) - { - src = NULL; - /* Here mbsinit (ps). */ - break; - } - src += ret; - } - - *srcp = src; - return destptr - dest; + wchar_t *destptr = dest; + + for (; len > 0; destptr++, len--) + { + size_t src_avail; + size_t ret; + + /* An optimized variant of + src_avail = strnlen1 (src, MB_LEN_MAX); */ + if (src[0] == '\0') + src_avail = 1; + else if (src[1] == '\0') + src_avail = 2; + else if (src[2] == '\0') + src_avail = 3; + else if (MB_LEN_MAX <= 4 || src[3] == '\0') + src_avail = 4; + else + src_avail = 4 + strnlen1 (src + 4, MB_LEN_MAX - 4); + + /* Parse the next multibyte character. */ + ret = mbrtowc (destptr, src, src_avail, ps); + + if (ret == (size_t)(-2)) + /* Encountered a multibyte character that extends past a '\0' byte + or that is longer than MB_LEN_MAX bytes. Cannot happen. */ + abort (); + + if (ret == (size_t)(-1)) + goto bad_input; + if (ret == 0) + { + src = NULL; + /* Here mbsinit (ps). */ + break; + } + src += ret; + } + + *srcp = src; + return destptr - dest; } else { - /* Ignore dest and len, don't store *srcp at the end, and - don't clobber *ps. */ - mbstate_t state = *ps; - size_t totalcount = 0; - - for (;; totalcount++) - { - size_t src_avail; - size_t ret; - - /* An optimized variant of - src_avail = strnlen1 (src, MB_LEN_MAX); */ - if (src[0] == '\0') - src_avail = 1; - else if (src[1] == '\0') - src_avail = 2; - else if (src[2] == '\0') - src_avail = 3; - else if (MB_LEN_MAX <= 4 || src[3] == '\0') - src_avail = 4; - else - src_avail = 4 + strnlen1 (src + 4, MB_LEN_MAX - 4); - - /* Parse the next multibyte character. */ - ret = mbrtowc (NULL, src, src_avail, &state); - - if (ret == (size_t)(-2)) - /* Encountered a multibyte character that extends past a '\0' byte - or that is longer than MB_LEN_MAX bytes. Cannot happen. */ - abort (); - - if (ret == (size_t)(-1)) - goto bad_input2; - if (ret == 0) - { - /* Here mbsinit (&state). */ - break; - } - src += ret; - } - - return totalcount; + /* Ignore dest and len, don't store *srcp at the end, and + don't clobber *ps. */ + mbstate_t state = *ps; + size_t totalcount = 0; + + for (;; totalcount++) + { + size_t src_avail; + size_t ret; + + /* An optimized variant of + src_avail = strnlen1 (src, MB_LEN_MAX); */ + if (src[0] == '\0') + src_avail = 1; + else if (src[1] == '\0') + src_avail = 2; + else if (src[2] == '\0') + src_avail = 3; + else if (MB_LEN_MAX <= 4 || src[3] == '\0') + src_avail = 4; + else + src_avail = 4 + strnlen1 (src + 4, MB_LEN_MAX - 4); + + /* Parse the next multibyte character. */ + ret = mbrtowc (NULL, src, src_avail, &state); + + if (ret == (size_t)(-2)) + /* Encountered a multibyte character that extends past a '\0' byte + or that is longer than MB_LEN_MAX bytes. Cannot happen. */ + abort (); + + if (ret == (size_t)(-1)) + goto bad_input2; + if (ret == 0) + { + /* Here mbsinit (&state). */ + break; + } + src += ret; + } + + return totalcount; } bad_input: |