This helper replaces all occurrences of a given character in a string.
Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
---
include/linux/string.h | 1 +
lib/string.c | 21 +++++++++++++++++++++
2 files changed, 22 insertions(+)
diff --git a/include/linux/string.h b/include/linux/string.h
index 32ce56939699..0d046f783280 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -115,6 +115,7 @@ extern char * skip_spaces(const char *);
extern char *strim(char *);
void *memchr_inv(const void *start, int c, size_t bytes);
+char *strreplace(char *str, char old, char new);
/**
* memzero_explicit - Fill a region of memory (e.g. sensitive
diff --git a/lib/string.c b/lib/string.c
index 695e50bc8fc1..374f326143a7 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -1028,3 +1028,24 @@ char *strjoin(const char *separator, char **arr, size_t arrlen)
return buf;
}
EXPORT_SYMBOL(strjoin);
+
+/**
+ * strreplace - Replace all occurrences of character in string.
+ * @str: The string to operate on.
+ * @old: The character being replaced.
+ * @new: The character @old is replaced with.
+ *
+ * Replaces the each @old character with a @new one in the given string @str.
+ *
+ * Return: pointer to the string @str itself.
+ */
+char *strreplace(char *str, char old, char new)
+{
+ char *s = str;
+
+ for (; *s; ++s)
+ if (*s == old)
+ *s = new;
+ return str;
+}
+EXPORT_SYMBOL(strreplace);
--
2.39.2
