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platform: add nm_platform_sysctl_get_int_checked() function

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Signed-off-by: Thomas Haller <thaller@redhat.com>
This commit is contained in:
Thomas Haller 2014-03-12 12:27:58 +01:00
parent 2b3ef7664f
commit 0a9cfb48ff
2 changed files with 23 additions and 1 deletions
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23
src/platform/nm-platform.c
View file

@ -279,6 +279,27 @@ nm_platform_sysctl_get (const char *path)
*/
gint32
nm_platform_sysctl_get_int32 (const char *path, gint32 fallback)
{
return nm_platform_sysctl_get_int_checked (path, 10, G_MININT32, G_MAXINT32, fallback);
}
/**
* nm_platform_sysctl_get_int_checked:
* @path: Absolute path to sysctl
* @base: base of numeric conversion
* @min: minimal value that is still valid
* @max: maximal value that is still valid
* @fallback: default value, if the content of path could not be read
* as valid integer.
*
* Returns: contents of the sysctl file parsed as s64 integer, or
* @fallback on error. On error, %errno will be set to a non-zero
* value. On success, %errno will be set to zero. The returned value
* will always be in the range between @min and @max
* (inclusive) or @fallback.
*/
gint64
nm_platform_sysctl_get_int_checked (const char *path, guint base, gint64 min, gint64 max, gint64 fallback)
{
char *value = NULL;
gint32 ret;
@ -293,7 +314,7 @@ nm_platform_sysctl_get_int32 (const char *path, gint32 fallback)
return fallback;
}
ret = nm_utils_ascii_str_to_int64 (value, 10, G_MININT32, G_MAXINT32, fallback);
ret = nm_utils_ascii_str_to_int64 (value, base, min, max, fallback);
g_free (value);
return ret;
}

1
src/platform/nm-platform.h
View file

@ -417,6 +417,7 @@ void nm_platform_query_devices (void);
gboolean nm_platform_sysctl_set (const char *path, const char *value);
char *nm_platform_sysctl_get (const char *path);
gint32 nm_platform_sysctl_get_int32 (const char *path, gint32 fallback);
gint64 nm_platform_sysctl_get_int_checked (const char *path, guint base, gint64 min, gint64 max, gint64 fallback);
GArray *nm_platform_link_get_all (void);
gboolean nm_platform_dummy_add (const char *name);