Add a strtobool function matching semantics of existing in kernel equivalents
This is a rename of the usr_strtobool proposal, which was a renamed, relocated and fixed version of previous kstrtobool RFC Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>hifive-unleashed-5.1
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6845756b29
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d0f1fed29e
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@ -123,6 +123,7 @@ extern char **argv_split(gfp_t gfp, const char *str, int *argcp);
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extern void argv_free(char **argv);
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extern void argv_free(char **argv);
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extern bool sysfs_streq(const char *s1, const char *s2);
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extern bool sysfs_streq(const char *s1, const char *s2);
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extern int strtobool(const char *s, bool *res);
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#ifdef CONFIG_BINARY_PRINTF
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#ifdef CONFIG_BINARY_PRINTF
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int vbin_printf(u32 *bin_buf, size_t size, const char *fmt, va_list args);
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int vbin_printf(u32 *bin_buf, size_t size, const char *fmt, va_list args);
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29
lib/string.c
29
lib/string.c
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@ -535,6 +535,35 @@ bool sysfs_streq(const char *s1, const char *s2)
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}
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}
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EXPORT_SYMBOL(sysfs_streq);
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EXPORT_SYMBOL(sysfs_streq);
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/**
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* strtobool - convert common user inputs into boolean values
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* @s: input string
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* @res: result
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*
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* This routine returns 0 iff the first character is one of 'Yy1Nn0'.
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* Otherwise it will return -EINVAL. Value pointed to by res is
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* updated upon finding a match.
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*/
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int strtobool(const char *s, bool *res)
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{
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switch (s[0]) {
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case 'y':
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case 'Y':
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case '1':
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*res = true;
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break;
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case 'n':
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case 'N':
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case '0':
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*res = false;
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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EXPORT_SYMBOL(strtobool);
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#ifndef __HAVE_ARCH_MEMSET
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#ifndef __HAVE_ARCH_MEMSET
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/**
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/**
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* memset - Fill a region of memory with the given value
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* memset - Fill a region of memory with the given value
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