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utils: add nm_utils_read_link_absolute()

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This commit is contained in:
Thomas Haller 2016-04-27 14:47:59 +02:00
parent 19350c8975
commit c4b88bf23f
2 changed files with 35 additions and 0 deletions
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33
src/nm-core-utils.c
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@ -1147,6 +1147,39 @@ nm_utils_find_helper(const char *progname, const char *try_first, GError **error
/******************************************************************************************/
/**
* nm_utils_read_link_absolute:
* @link_file: file name of the symbolic link
* @error: error reason in case of failure
*
* Uses to g_file_read_link()/readlink() to read the symlink
* and returns the result as absolute path.
**/
char *
nm_utils_read_link_absolute (const char *link_file, GError **error)
{
char *ln, *dirname, *ln_abs;
ln = g_file_read_link (link_file, error);
if (!ln)
return NULL;
if (g_path_is_absolute (ln))
return ln;
dirname = g_path_get_dirname (link_file);
if (!g_path_is_absolute (link_file)) {
gs_free char *dirname_rel = dirname;
dirname = g_build_filename (g_get_current_dir (), dirname_rel, NULL);
}
ln_abs = g_build_filename (dirname, ln, NULL);
g_free (dirname);
g_free (ln);
return ln_abs;
}
/******************************************************************************************/
#define MAC_TAG "mac:"
#define INTERFACE_NAME_TAG "interface-name:"
#define DEVICE_TYPE_TAG "type:"

2
src/nm-core-utils.h
View file

@ -134,6 +134,8 @@ const char *nm_utils_find_helper (const char *progname,
const char *try_first,
GError **error);
char *nm_utils_read_link_absolute (const char *link_file, GError **error);
typedef enum {
NM_MATCH_SPEC_NO_MATCH = 0,
NM_MATCH_SPEC_MATCH = 1,