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- /*
- * linux/lib/string.c
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- */
- #ifdef USE_HOSTCC
- #include <stdio.h>
- #endif
- #include <linux/ctype.h>
- #include <linux/string.h>
- /**
- * skip_spaces - Removes leading whitespace from @str.
- * @str: The string to be stripped.
- *
- * Returns a pointer to the first non-whitespace character in @str.
- */
- char *skip_spaces(const char *str)
- {
- while (isspace(*str))
- ++str;
- return (char *)str;
- }
- /**
- * strim - Removes leading and trailing whitespace from @s.
- * @s: The string to be stripped.
- *
- * Note that the first trailing whitespace is replaced with a %NUL-terminator
- * in the given string @s. Returns a pointer to the first non-whitespace
- * character in @s.
- */
- char *strim(char *s)
- {
- size_t size;
- char *end;
- s = skip_spaces(s);
- size = strlen(s);
- if (!size)
- return s;
- end = s + size - 1;
- while (end >= s && isspace(*end))
- end--;
- *(end + 1) = '\0';
- return s;
- }
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