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shared: add _nm_utils_ascii_str_to_uint64() helper

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This commit is contained in:
Thomas Haller 2018-10-16 14:06:38 +02:00
parent 9cf64e2ee2
commit c0d292d255
2 changed files with 46 additions and 1 deletions
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44
shared/nm-utils/nm-shared-utils.c
View file

@ -608,6 +608,50 @@ _nm_utils_ascii_str_to_int64 (const char *str, guint base, gint64 min, gint64 ma
return v;
}
guint64
_nm_utils_ascii_str_to_uint64 (const char *str, guint base, guint64 min, guint64 max, guint64 fallback)
{
guint64 v;
const char *s = NULL;
if (str) {
while (g_ascii_isspace (str[0]))
str++;
}
if (!str || !str[0]) {
errno = EINVAL;
return fallback;
}
errno = 0;
v = g_ascii_strtoull (str, (char **) &s, base);
if (errno != 0)
return fallback;
if (s[0] != '\0') {
while (g_ascii_isspace (s[0]))
s++;
if (s[0] != '\0') {
errno = EINVAL;
return fallback;
}
}
if (v > max || v < min) {
errno = ERANGE;
return fallback;
}
if ( v != 0
&& str[0] == '-') {
/* I don't know why, but g_ascii_strtoull() accepts minus signs ("-2" gives 18446744073709551614).
* For "-0" that is OK, but otherwise not. */
errno = ERANGE;
return fallback;
}
return v;
}
/*****************************************************************************/
/* like nm_strcmp_p(), suitable for g_ptr_array_sort_with_data().

3
shared/nm-utils/nm-shared-utils.h
View file

@ -408,7 +408,8 @@ gboolean nm_utils_parse_inaddr_prefix (int addr_family,
char **out_addr,
int *out_prefix);
gint64 _nm_utils_ascii_str_to_int64 (const char *str, guint base, gint64 min, gint64 max, gint64 fallback);
gint64 _nm_utils_ascii_str_to_int64 (const char *str, guint base, gint64 min, gint64 max, gint64 fallback);
guint64 _nm_utils_ascii_str_to_uint64 (const char *str, guint base, guint64 min, guint64 max, guint64 fallback);
int _nm_utils_ascii_str_to_bool (const char *str,
int default_value);