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udev-util: introduce udev_replace_ifname()

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This commit is contained in:
Yu Watanabe 2021-06-23 15:58:31 +09:00
parent 5a3586db9a
commit e1ecfef16f
2 changed files with 18 additions and 0 deletions
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17
src/shared/udev-util.c
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@ -18,6 +18,7 @@
#include "parse-util.h"
#include "path-util.h"
#include "signal-util.h"
#include "socket-util.h"
#include "string-table.h"
#include "string-util.h"
#include "strxcpyx.h"
@ -436,6 +437,22 @@ size_t udev_replace_whitespace(const char *str, char *to, size_t len) {
return j;
}
size_t udev_replace_ifname(char *str) {
size_t replaced = 0;
assert(str);
/* See ifname_valid_full(). */
for (char *p = str; *p != '\0'; p++)
if (!ifname_valid_char(*p)) {
*p = '_';
replaced++;
}
return replaced;
}
size_t udev_replace_chars(char *str, const char *allow) {
size_t i = 0, replaced = 0;

1
src/shared/udev-util.h
View File

@ -46,6 +46,7 @@ void log_device_uevent(sd_device *device, const char *str);
int udev_rule_parse_value(char *str, char **ret_value, char **ret_endpos);
size_t udev_replace_whitespace(const char *str, char *to, size_t len);
size_t udev_replace_ifname(char *str);
size_t udev_replace_chars(char *str, const char *allow);
int udev_resolve_subsys_kernel(const char *string, char *result, size_t maxsize, bool read_value);