libc should use O_CLOEXEC when opening files for its own use.
Change-Id: I159f1d57e0ca090d837f57854fcef5879b8b8248
diff --git a/libc/dns/gethnamaddr.c b/libc/dns/gethnamaddr.c
index 80fdcbe..cc33c61 100644
--- a/libc/dns/gethnamaddr.c
+++ b/libc/dns/gethnamaddr.c
@@ -899,7 +899,7 @@
res_static rs = __res_get_static();
if (rs == NULL) return;
if (!rs->hostf)
- rs->hostf = fopen(_PATH_HOSTS, "r" );
+ rs->hostf = fopen(_PATH_HOSTS, "re" );
else
rewind(rs->hostf);
rs->stayopen = f;
@@ -925,7 +925,7 @@
int af, len;
res_static rs = __res_get_static();
- if (!rs->hostf && !(rs->hostf = fopen(_PATH_HOSTS, "r" ))) {
+ if (!rs->hostf && !(rs->hostf = fopen(_PATH_HOSTS, "re" ))) {
h_errno = NETDB_INTERNAL;
return NULL;
}
diff --git a/libc/dns/net/getaddrinfo.c b/libc/dns/net/getaddrinfo.c
index 65fd1c1..a492318 100644
--- a/libc/dns/net/getaddrinfo.c
+++ b/libc/dns/net/getaddrinfo.c
@@ -2017,7 +2017,7 @@
{
if (!*hostf)
- *hostf = fopen(_PATH_HOSTS, "r" );
+ *hostf = fopen(_PATH_HOSTS, "re");
else
rewind(*hostf);
}
@@ -2046,7 +2046,7 @@
assert(name != NULL);
assert(pai != NULL);
- if (!*hostf && !(*hostf = fopen(_PATH_HOSTS, "r" )))
+ if (!*hostf && !(*hostf = fopen(_PATH_HOSTS, "re")))
return (NULL);
again:
if (!(p = fgets(hostbuf, sizeof hostbuf, *hostf)))
diff --git a/libc/dns/resolv/res_cache.c b/libc/dns/resolv/res_cache.c
index 77a1b4d..0201aa8 100644
--- a/libc/dns/resolv/res_cache.c
+++ b/libc/dns/resolv/res_cache.c
@@ -1436,7 +1436,7 @@
char* buf;
int fileLen;
- fp = fopen("/data/reslog.txt", "w+");
+ fp = fopen("/data/reslog.txt", "w+e");
if (fp != NULL) {
statep = __res_get_state();
diff --git a/libc/dns/resolv/res_init.c b/libc/dns/resolv/res_init.c
index f1cbed8..c05352a 100644
--- a/libc/dns/resolv/res_init.c
+++ b/libc/dns/resolv/res_init.c
@@ -289,7 +289,7 @@
line[sizeof(name) - 1] == '\t'))
nserv = 0;
- if ((fp = fopen(_PATH_RESCONF, "r")) != NULL) {
+ if ((fp = fopen(_PATH_RESCONF, "re")) != NULL) {
/* read the config file */
while (fgets(buf, sizeof(buf), fp) != NULL) {
/* skip comments */