@@ -355,6 +355,31 @@ int seq_release(struct inode *inode, struct file *file)
}
EXPORT_SYMBOL(seq_release);
+/**
+ * seq_escape_mem - print data into buffer, escaping some characters
+ * @m: target buffer
+ * @src: source buffer
+ * @len: size of source buffer
+ * @flags: flags to pass to string_escape_mem()
+ * @esc: set of characters that need escaping
+ *
+ * Puts data into buffer, replacing each occurrence of character from
+ * given class (defined by @flags and @esc) with printable escaped sequence.
+ *
+ * Use seq_has_overflowed() to check for errors.
+ */
+void seq_escape_mem(struct seq_file *m, const char *src, size_t len,
+ unsigned int flags, const char *esc)
+{
+ char *buf;
+ size_t size = seq_get_buf(m, &buf);
+ int ret;
+
+ ret = string_escape_mem(src, len, buf, size, flags, esc);
+ seq_commit(m, ret < size ? ret : -1);
+}
+EXPORT_SYMBOL(seq_escape_mem);
+
/**
* seq_escape - print string into buffer, escaping some characters
* @m: target buffer
@@ -126,6 +126,8 @@ void seq_put_decimal_ll(struct seq_file *m, const char *delimiter, long long num
void seq_put_hex_ll(struct seq_file *m, const char *delimiter,
unsigned long long v, unsigned int width);
+void seq_escape_mem(struct seq_file *m, const char *src, size_t len,
+ unsigned int flags, const char *esc);
void seq_escape(struct seq_file *m, const char *s, const char *esc);
void seq_escape_mem_ascii(struct seq_file *m, const char *src, size_t isz);
Introduce seq_escape_mem() to allow users to pass additional parameters to string_escape_mem(). Suggested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> --- fs/seq_file.c | 25 +++++++++++++++++++++++++ include/linux/seq_file.h | 2 ++ 2 files changed, 27 insertions(+)