On Fri, 01 Feb 2008 06:11:43 +0800 Yi Yang <[EMAIL PROTECTED]> wrote:
> --- a/include/linux/kernel.h 2008-01-31 00:41:46.000000000 +0800
> --- b/include/linux/kernel.h 2008-02-01 04:30:49.000000000 +0800
> @@ -141,6 +141,10 @@ extern unsigned long simple_strtoul(cons
> extern long simple_strtol(const char *,char **,unsigned int);
> extern unsigned long long simple_strtoull(const char *,char **,unsigned int);
> extern long long simple_strtoll(const char *,char **,unsigned int);
> +extern int strict_strtoul(const char *, unsigned int, unsigned long *);
> +extern int strict_strtol(const char *, unsigned int, long *);
> +extern int strict_strtoull(const char *, unsigned int, unsigned long long *);
> +extern int strict_strtoll(const char *, unsigned int, long long *);
> extern int sprintf(char * buf, const char * fmt, ...)
> __attribute__ ((format (printf, 2, 3)));
> extern int vsprintf(char *buf, const char *, va_list)
> --- a/lib/vsprintf.c 2008-01-30 08:13:03.000000000 +0800
> --- b/lib/vsprintf.c 2008-02-01 04:33:27.000000000 +0800
> @@ -126,6 +126,52 @@ long long simple_strtoll(const char *cp,
> return simple_strtoull(cp,endp,base);
> }
>
> +#define define_strict_strtoux(type, valtype) \
> +int strict_strtou##type(const char *cp, unsigned int base, valtype *res)\
> +{ \
> + char *tail; \
> + valtype val; \
> + size_t len; \
> + \
> + *res = 0; \
> + len = strlen(cp); \
> + if (len == 0) \
> + return -EINVAL; \
> + \
> + val = simple_strtoul(cp, &tail, base); \
> + if ((*tail == '\0') || \
> + (len == (size_t)(tail - cp) + 1) && (*tail == '\n')) { \
> + *res = val; \
> + return 0; \
> + } \
> + \
> + return -EINVAL; \
> +} \
> +
> +#define define_strict_strtox(type, valtype) \
> +int strict_strto##type(const char *cp, unsigned int base, valtype *res)
> \
> +{ \
> + int ret; \
> + if (*cp == '-') { \
> + ret = strict_strtou##type(cp+1, base, res); \
> + if (ret != 0) \
> + *res = -(*res); \
> + } else \
> + ret = strict_strtou##type(cp+1, base, res); \
> + \
> + return ret; \
> +} \
> +
> +define_strict_strtoux(l, unsigned long)
> +define_strict_strtox(l, long)
> +define_strict_strtoux(ll, unsigned long long)
> +define_strict_strtox(ll, long long)
> +
> +EXPORT_SYMBOL(strict_strtoul);
> +EXPORT_SYMBOL(strict_strtol);
> +EXPORT_SYMBOL(strict_strtoll);
> +EXPORT_SYMBOL(strict_strtoull);
These are global, exported-to-modules library functions. Documentation is
compulsory (as far as I'm concerned).
Could you please add a comment block in there which at least explains how
they differ from the other strto* functions?
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