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linux: spl: generic: ddi_strto*: match solaris ddi_strto*(9)

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Recognise initial whitespace, + in both cases,
and - also in unsigneds

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13434
This commit is contained in:
наб
2022-05-07 19:54:29 +02:00
committed by Brian Behlendorf
parent 354a1bfb8e
commit de82164518
2 changed files with 19 additions and 31 deletions
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module/os/linux/spl/spl-generic.c
+17 -29
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@@ -425,22 +425,33 @@ EXPORT_SYMBOL(__aeabi_ldivmod);
* functions against their Solaris counterparts. It is possible that I
* may have misinterpreted the man page or the man page is incorrect.
*/
static int ddi_strtoul(const char *, char **, int, unsigned long *);
int ddi_strtol(const char *, char **, int, long *);
int ddi_strtoull(const char *, char **, int, unsigned long long *);
int ddi_strtoll(const char *, char **, int, long long *);
#define define_ddi_strtoux(type, valtype, ...) \
__VA_ARGS__ int ddi_strtou##type(const char *str, char **endptr, \
#define define_ddi_strtox(type, valtype) \
int ddi_strto##type(const char *str, char **endptr, \
int base, valtype *result) \
{ \
valtype last_value, value = 0; \
char *ptr = (char *)str; \
int digit; \
int digit, minus = 0; \
\
while (strchr(" \t\n\r\f", *ptr)) \
++ptr; \
\
if (strlen(ptr) == 0) \
return (EINVAL); \
\
switch (*ptr) { \
case '-': \
minus = 1; \
zfs_fallthrough; \
case '+': \
++ptr; \
break; \
} \
\
/* Auto-detect base based on prefix */ \
if (!base) { \
if (str[0] == '0') { \
@@ -477,7 +488,7 @@ __VA_ARGS__ int ddi_strtou##type(const char *str, char **endptr, \
ptr++; \
} \
\
*result = value; \
*result = minus ? -value : value; \
\
if (endptr) \
*endptr = ptr; \
@@ -485,31 +496,8 @@ __VA_ARGS__ int ddi_strtou##type(const char *str, char **endptr, \
return (0); \
} \
#define define_ddi_strtox(type, valtype) \
int ddi_strto##type(const char *str, char **endptr, \
int base, valtype *result) \
{ \
int rc; \
\
if (*str == '-') { \
rc = ddi_strtou##type(str + 1, endptr, base, result); \
if (!rc) { \
if (*endptr == str + 1) \
*endptr = (char *)str; \
else \
*result = -*result; \
} \
} else { \
rc = ddi_strtou##type(str, endptr, base, result); \
} \
\
return (rc); \
}
#define blank
define_ddi_strtoux(l, unsigned long, static)
define_ddi_strtox(l, long)
define_ddi_strtoux(ll, unsigned long long, blank)
define_ddi_strtox(ull, unsigned long long)
define_ddi_strtox(ll, long long)
EXPORT_SYMBOL(ddi_strtol);