From 68b5204f29c1dde5ae03604807f715684a5cb594 Mon Sep 17 00:00:00 2001
From: Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com>
Date: Sat, 18 Jan 2014 15:32:50 +0900
Subject: [PATCH] src: Set errno = 0 before calling strtol

---
 src/deflatehd.c | 2 ++
 src/inflatehd.c | 1 +
 src/nghttp.cc   | 1 +
 src/nghttpd.cc  | 1 +
 4 files changed, 5 insertions(+)

diff --git a/src/deflatehd.c b/src/deflatehd.c
index 4345592f..4ecb96fa 100644
--- a/src/deflatehd.c
+++ b/src/deflatehd.c
@@ -411,6 +411,7 @@ int main(int argc, char **argv)
       break;
     case 's':
       /* --table-size */
+      errno = 0;
       config.table_size = strtoul(optarg, &end, 10);
       if(errno == ERANGE || *end != '\0') {
         fprintf(stderr, "-s: Bad option value\n");
@@ -419,6 +420,7 @@ int main(int argc, char **argv)
       break;
     case 'S':
       /* --deflate-table-size */
+      errno = 0;
       config.deflate_table_size = strtoul(optarg, &end, 10);
       if(errno == ERANGE || *end != '\0') {
         fprintf(stderr, "-S: Bad option value\n");
diff --git a/src/inflatehd.c b/src/inflatehd.c
index 9d868998..e8231e2d 100644
--- a/src/inflatehd.c
+++ b/src/inflatehd.c
@@ -269,6 +269,7 @@ int main(int argc, char **argv)
       exit(EXIT_SUCCESS);
     case 's':
       /* --table-size */
+      errno = 0;
       config.table_size = strtoul(optarg, &end, 10);
       if(errno == ERANGE || *end != '\0') {
         fprintf(stderr, "-s: Bad option value\n");
diff --git a/src/nghttp.cc b/src/nghttp.cc
index ea3439dd..cc8e9b04 100644
--- a/src/nghttp.cc
+++ b/src/nghttp.cc
@@ -1837,6 +1837,7 @@ int main(int argc, char **argv)
       config.multiply = strtoul(optarg, nullptr, 10);
       break;
     case 'c':
+      errno = 0;
       config.header_table_size = strtol(optarg, &end, 10);
       if(errno == ERANGE || *end != '\0') {
         std::cerr << "-c: Bad option value: " << optarg << std::endl;
diff --git a/src/nghttpd.cc b/src/nghttpd.cc
index 2da9d019..f9e0e251 100644
--- a/src/nghttpd.cc
+++ b/src/nghttpd.cc
@@ -167,6 +167,7 @@ int main(int argc, char **argv)
       config.verbose = true;
       break;
     case 'c':
+      errno = 0;
       config.header_table_size = strtol(optarg, &end, 10);
       if(errno == ERANGE || *end != '\0') {
         std::cerr << "-c: Bad option value: " << optarg << std::endl;