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util: Use g_ascii_strtoll
This has two main advantages: - it parses the number with C locale explicitly - it behaves the same on Windows as on Linux and BSD both of which are wanted behaviours. Signed-off-by: Martin Kletzander <mkletzan@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
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fd340227a7
commit
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@ -35,7 +35,7 @@
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VIR_LOG_INIT("util.string");
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VIR_LOG_INIT("util.string");
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/* Like strtol, but produce an "int" result, and check more carefully.
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/* Like strtol with C locale, but produce an "int" result, and check more carefully.
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Return 0 upon success; return -1 to indicate failure.
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Return 0 upon success; return -1 to indicate failure.
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When END_PTR is NULL, the byte after the final valid digit must be NUL.
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When END_PTR is NULL, the byte after the final valid digit must be NUL.
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Otherwise, it's like strtol and lets the caller check any suffix for
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Otherwise, it's like strtol and lets the caller check any suffix for
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@ -44,12 +44,12 @@ VIR_LOG_INIT("util.string");
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int
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int
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virStrToLong_i(char const *s, char **end_ptr, int base, int *result)
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virStrToLong_i(char const *s, char **end_ptr, int base, int *result)
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{
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{
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long int val;
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long long val;
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char *p;
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char *p;
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int err;
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int err;
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errno = 0;
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errno = 0;
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val = strtol(s, &p, base); /* exempt from syntax-check */
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val = g_ascii_strtoll(s, &p, base);
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err = (errno || (!end_ptr && *p) || p == s || (int) val != val);
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err = (errno || (!end_ptr && *p) || p == s || (int) val != val);
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if (end_ptr)
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if (end_ptr)
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*end_ptr = p;
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*end_ptr = p;
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@ -65,22 +65,22 @@ virStrToLong_i(char const *s, char **end_ptr, int base, int *result)
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int
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int
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virStrToLong_ui(char const *s, char **end_ptr, int base, unsigned int *result)
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virStrToLong_ui(char const *s, char **end_ptr, int base, unsigned int *result)
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{
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{
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unsigned long int val;
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unsigned long long val;
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char *p;
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char *p;
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bool err = false;
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bool err = false;
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errno = 0;
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errno = 0;
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val = strtoul(s, &p, base); /* exempt from syntax-check */
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val = g_ascii_strtoull(s, &p, base);
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/* This one's tricky. We _want_ to allow "-1" as shorthand for
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/* This one's tricky. We _want_ to allow "-1" as shorthand for
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* UINT_MAX regardless of whether long is 32-bit or 64-bit. But
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* UINT_MAX regardless of whether long is 32-bit or 64-bit. But
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* strtoul treats "-1" as ULONG_MAX, and going from ulong back
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* g_ascii_strtoull treats "-1" as ULLONG_MAX, and going from ullong back
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* to uint differs depending on the size of long. */
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* to uint differs depending on the size of uint. */
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if (sizeof(long) > sizeof(int) && memchr(s, '-', p - s)) {
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if (memchr(s, '-', p - s)) {
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if (-val > UINT_MAX)
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if (-val > UINT_MAX)
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err = true;
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err = true;
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else
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else
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val &= 0xffffffff;
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val &= UINT_MAX;
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}
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}
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err |= (errno || (!end_ptr && *p) || p == s || (unsigned int) val != val);
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err |= (errno || (!end_ptr && *p) || p == s || (unsigned int) val != val);
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@ -97,12 +97,12 @@ virStrToLong_ui(char const *s, char **end_ptr, int base, unsigned int *result)
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int
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int
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virStrToLong_uip(char const *s, char **end_ptr, int base, unsigned int *result)
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virStrToLong_uip(char const *s, char **end_ptr, int base, unsigned int *result)
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{
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{
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unsigned long int val;
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unsigned long long val;
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char *p;
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char *p;
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bool err = false;
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bool err = false;
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errno = 0;
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errno = 0;
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val = strtoul(s, &p, base); /* exempt from syntax-check */
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val = g_ascii_strtoull(s, &p, base);
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err = (memchr(s, '-', p - s) ||
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err = (memchr(s, '-', p - s) ||
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errno || (!end_ptr && *p) || p == s || (unsigned int) val != val);
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errno || (!end_ptr && *p) || p == s || (unsigned int) val != val);
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if (end_ptr)
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if (end_ptr)
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@ -121,13 +121,25 @@ virStrToLong_uip(char const *s, char **end_ptr, int base, unsigned int *result)
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int
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int
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virStrToLong_ul(char const *s, char **end_ptr, int base, unsigned long *result)
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virStrToLong_ul(char const *s, char **end_ptr, int base, unsigned long *result)
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{
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{
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unsigned long int val;
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unsigned long long val;
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char *p;
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char *p;
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int err;
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bool err = false;
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errno = 0;
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errno = 0;
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val = strtoul(s, &p, base); /* exempt from syntax-check */
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val = g_ascii_strtoull(s, &p, base);
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err = (errno || (!end_ptr && *p) || p == s);
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/* This one's tricky. We _want_ to allow "-1" as shorthand for
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* ULONG_MAX regardless of whether long is 32-bit or 64-bit. But
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* g_ascii_strtoull treats "-1" as ULLONG_MAX, and going from ullong back
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* to ulong differs depending on the size of ulong. */
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if (memchr(s, '-', p - s)) {
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if (-val > ULONG_MAX)
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err = true;
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else
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val &= ULONG_MAX;
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}
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err |= (errno || (!end_ptr && *p) || p == s || (unsigned long) val != val);
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if (end_ptr)
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if (end_ptr)
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*end_ptr = p;
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*end_ptr = p;
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if (err)
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if (err)
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@ -142,14 +154,14 @@ int
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virStrToLong_ulp(char const *s, char **end_ptr, int base,
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virStrToLong_ulp(char const *s, char **end_ptr, int base,
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unsigned long *result)
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unsigned long *result)
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{
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{
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unsigned long int val;
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unsigned long long val;
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char *p;
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char *p;
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int err;
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int err;
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errno = 0;
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errno = 0;
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val = strtoul(s, &p, base); /* exempt from syntax-check */
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val = g_ascii_strtoull(s, &p, base);
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err = (memchr(s, '-', p - s) ||
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err = (memchr(s, '-', p - s) ||
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errno || (!end_ptr && *p) || p == s);
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errno || (!end_ptr && *p) || p == s || (unsigned long) val != val);
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if (end_ptr)
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if (end_ptr)
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*end_ptr = p;
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*end_ptr = p;
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if (err)
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if (err)
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@ -167,7 +179,7 @@ virStrToLong_ll(char const *s, char **end_ptr, int base, long long *result)
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int err;
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int err;
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errno = 0;
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errno = 0;
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val = strtoll(s, &p, base); /* exempt from syntax-check */
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val = g_ascii_strtoll(s, &p, base);
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err = (errno || (!end_ptr && *p) || p == s);
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err = (errno || (!end_ptr && *p) || p == s);
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if (end_ptr)
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if (end_ptr)
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*end_ptr = p;
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*end_ptr = p;
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@ -189,7 +201,7 @@ virStrToLong_ull(char const *s, char **end_ptr, int base,
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int err;
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int err;
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errno = 0;
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errno = 0;
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val = strtoull(s, &p, base); /* exempt from syntax-check */
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val = g_ascii_strtoull(s, &p, base);
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err = (errno || (!end_ptr && *p) || p == s);
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err = (errno || (!end_ptr && *p) || p == s);
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if (end_ptr)
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if (end_ptr)
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*end_ptr = p;
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*end_ptr = p;
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@ -210,7 +222,7 @@ virStrToLong_ullp(char const *s, char **end_ptr, int base,
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int err;
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int err;
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errno = 0;
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errno = 0;
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val = strtoull(s, &p, base); /* exempt from syntax-check */
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val = g_ascii_strtoull(s, &p, base);
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err = (memchr(s, '-', p - s) ||
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err = (memchr(s, '-', p - s) ||
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errno || (!end_ptr && *p) || p == s);
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errno || (!end_ptr && *p) || p == s);
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if (end_ptr)
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if (end_ptr)
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