From: Praveen K Paladugu <praveenkpaladugu@gmail.com>
Date: Tue, 11 Feb 2025 19:18:19 +0000 (-0600)
Subject: util: Introduce virStringFormatHex
X-Git-Tag: v11.2.0-rc1~207
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=695a4f38b5f3e942797b081c23aa039c0ce07723;p=thirdparty%2Flibvirt.git

util: Introduce virStringFormatHex

virStringFormatHex converts an input byte array into hex string and
returns it.

Signed-off-by: Praveen K Paladugu <praveenkpaladugu@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
---

diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index d9e60c946d..e63939e2b5 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -3464,6 +3464,7 @@ virSkipToDigit;
 virStrcpy;
 virStringBufferIsPrintable;
 virStringFilterChars;
+virStringFormatHex;
 virStringHasCaseSuffix;
 virStringHasChars;
 virStringHasControlChars;
diff --git a/src/util/virstring.c b/src/util/virstring.c
index 15c3f7bdd1..7249ab4e7c 100644
--- a/src/util/virstring.c
+++ b/src/util/virstring.c
@@ -1092,3 +1092,23 @@ virStringListRemoveDuplicates(char ***list)
     g_free(*list);
     *list = g_renew(char *, unique, n + 1);
 }
+
+/**
+ * virStringFormatHex:
+ * @buf: buffer to format
+ * @len: length of the buffer
+ *
+ * Format a byte array into a hexadecimal string and return it. It's caller's
+ * responsibility to free returned string.
+ */
+char *
+virStringFormatHex(const unsigned char *buf, size_t len)
+{
+    char *hex = g_new0(char, len * 2 + 1);
+    size_t i;
+
+    for (i = 0; i < len; i++)
+        g_snprintf(hex + i * 2, 3, "%02x", buf[i]);
+
+    return g_steal_pointer(&hex);
+}
diff --git a/src/util/virstring.h b/src/util/virstring.h
index 31a404e106..3d880faf0c 100644
--- a/src/util/virstring.h
+++ b/src/util/virstring.h
@@ -140,3 +140,4 @@ int virStringParseVersion(unsigned long long *version,
                           bool allowMissing);
 
 void virStringListRemoveDuplicates(char ***list);
+char *virStringFormatHex(const unsigned char *buf, size_t len);