From 6e6d95b3db091d4ae107c8d4f03354ccadd20757 Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Tue, 22 Feb 2005 08:18:36 +0000
Subject: Change from inet_ntoa to a threadproof tor_inet_ntoa.

svn:r3656
---
 src/common/util.c | 11 +++++++++++
 src/common/util.h |  2 ++
 2 files changed, 13 insertions(+)

(limited to 'src/common')

diff --git a/src/common/util.c b/src/common/util.c
index 4b17454e80..339572e449 100644
--- a/src/common/util.c
+++ b/src/common/util.c
@@ -1255,6 +1255,17 @@ parse_addr_and_port_range(const char *s, uint32_t *addr_out,
   return -1;
 }
 
+int
+tor_inet_ntoa(struct in_addr *in, char *buf, size_t buf_len)
+{
+  uint32_t a = ntohl(in->s_addr);
+  return tor_snprintf(buf, buf_len, "%d.%d.%d.%d",
+                      (int)(uint8_t)((a>>24)&0xff),
+                      (int)(uint8_t)((a>>16)&0xff),
+                      (int)(uint8_t)((a>>8 )&0xff),
+                      (int)(uint8_t)((a    )&0xff));
+}
+
 /* =====
  * Process helpers
  * ===== */
diff --git a/src/common/util.h b/src/common/util.h
index 2f139515af..fde2557f58 100644
--- a/src/common/util.h
+++ b/src/common/util.h
@@ -126,6 +126,8 @@ int parse_addr_port(const char *addrport, char **address, uint32_t *addr,
 int parse_addr_and_port_range(const char *s, uint32_t *addr_out,
                               uint32_t *mask_out, uint16_t *port_min_out,
                               uint16_t *port_max_out);
+#define INET_NTOA_BUF_LEN 16
+int tor_inet_ntoa(struct in_addr *in, char *buf, size_t buf_len);
 
 /* Process helpers */
 void start_daemon(const char *desired_cwd);
-- 
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