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strings: Return NUL from vim_strchr for invalid input

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ZyX
2017-05-09 14:32:18 +03:00
parent 04e7eb1e29
commit 823b35e341
1 changed files with 4 additions and 5 deletions
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9
src/nvim/strings.c
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@@ -428,16 +428,15 @@ int vim_strnicmp(const char *s1, const char *s2, size_t len)
/// strchr() version which handles multibyte strings
///
/// @param[in] string String to search in.
/// @param[in] c Character to search for. Must be a valid character.
/// @param[in] c Character to search for.
///
/// @return Pointer to the first byte of the found character in string or NULL
/// if it was not found. NUL character is never found, use `strlen()`
/// instead.
/// if it was not found or character is invalid. NUL character is never
/// found, use `strlen()` instead.
char_u *vim_strchr(const char_u *const string, const int c)
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
{
assert(c >= 0);
if (c == 0) {
if (c <= 0) {
return NULL;
} else if (c < 0x80) {
return (char_u *)strchr((const char *)string, c);