[PATCH 1/5] misc: add xrtrim() - right-trim a string

[Daniel Martin]

Signed-off-by: Daniel Martin <consume.noise at gmail.com>
---
 include/misc.h |  1 +
 os/utils.c     | 16 ++++++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/include/misc.h b/include/misc.h
index 17de710..aab556a 100644
--- a/include/misc.h
+++ b/include/misc.h
@@ -246,6 +246,7 @@ padding_for_int32(const int bytes)
 }
 
 
+extern int xrtrim(char *str, int str_len);
 extern char **xstrtokenize(const char *str, const char *separators);
 extern void FormatInt64(int64_t num, char *string);
 extern void FormatUInt64(uint64_t num, char *string);
diff --git a/os/utils.c b/os/utils.c
index fb20da7..56a1a6d 100644
--- a/os/utils.c
+++ b/os/utils.c
@@ -1943,6 +1943,22 @@ CheckUserAuthorization(void)
 }
 
 /*
+ * Right-trim a string. Returns the string length after trimming.
+ */
+int
+xrtrim(char *str, int str_len)
+{
+    int i = str_len;
+
+    while (i > 0 && !isgraph(str[i - 1]))
+        i--;
+
+    str[i] = '\0';
+
+    return i;
+}
+
+/*
  * Tokenize a string into a NULL terminated array of strings. Always returns
  * an allocated array unless an error occurs.
  */
-- 
1.8.4.2