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-rw-r--r--src/ldso/dynlink.c4
-rw-r--r--src/misc/realpath.c2
-rw-r--r--src/network/__dns.c4
-rw-r--r--src/stdio/__fopen_rb_ca.c2
4 files changed, 5 insertions, 7 deletions
diff --git a/src/ldso/dynlink.c b/src/ldso/dynlink.c
index 1c181339..d0b57e8d 100644
--- a/src/ldso/dynlink.c
+++ b/src/ldso/dynlink.c
@@ -376,7 +376,7 @@ static int path_open(const char *name, const char *search, char *buf, size_t buf
z = strchr(s, ':');
l = z ? z-s : strlen(s);
snprintf(buf, buf_size, "%.*s/%s", l, s, name);
- if ((fd = open(buf, O_RDONLY))>=0) return fd;
+ if ((fd = open(buf, O_RDONLY|O_CLOEXEC))>=0) return fd;
s += l;
}
}
@@ -423,7 +423,7 @@ static struct dso *load_library(const char *name)
}
if (strchr(name, '/')) {
pathname = name;
- fd = open(name, O_RDONLY);
+ fd = open(name, O_RDONLY|O_CLOEXEC);
} else {
/* Search for the name to see if it's already loaded */
for (p=head->next; p; p=p->next) {
diff --git a/src/misc/realpath.c b/src/misc/realpath.c
index 57568179..18335146 100644
--- a/src/misc/realpath.c
+++ b/src/misc/realpath.c
@@ -19,7 +19,7 @@ char *realpath(const char *restrict filename, char *restrict resolved)
return 0;
}
- fd = open(filename, O_RDONLY|O_NONBLOCK);
+ fd = open(filename, O_RDONLY|O_NONBLOCK|O_CLOEXEC);
if (fd < 0) return 0;
snprintf(buf, sizeof buf, "/proc/self/fd/%d", fd);
diff --git a/src/network/__dns.c b/src/network/__dns.c
index 1464513d..372a5871 100644
--- a/src/network/__dns.c
+++ b/src/network/__dns.c
@@ -91,7 +91,7 @@ int __dns_doqueries(unsigned char *dest, const char *name, int *rr, int rrcnt)
/* Get local address and open/bind a socket */
sa.sin.sin_family = family;
- fd = socket(family, SOCK_DGRAM, 0);
+ fd = socket(family, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
pthread_cleanup_push(cleanup, (void *)(intptr_t)fd);
pthread_setcancelstate(cs, 0);
@@ -100,8 +100,6 @@ int __dns_doqueries(unsigned char *dest, const char *name, int *rr, int rrcnt)
errcode = EAI_SYSTEM;
goto out;
}
- /* Nonblocking to work around Linux UDP select bug */
- fcntl(fd, F_SETFL, fcntl(fd, F_GETFL, 0) | O_NONBLOCK);
pfd.fd = fd;
pfd.events = POLLIN;
diff --git a/src/stdio/__fopen_rb_ca.c b/src/stdio/__fopen_rb_ca.c
index 89ccbc37..a1b1b3b6 100644
--- a/src/stdio/__fopen_rb_ca.c
+++ b/src/stdio/__fopen_rb_ca.c
@@ -4,7 +4,7 @@ FILE *__fopen_rb_ca(const char *filename, FILE *f, unsigned char *buf, size_t le
{
memset(f, 0, sizeof *f);
- f->fd = syscall(SYS_open, filename, O_RDONLY|O_LARGEFILE, 0);
+ f->fd = syscall(SYS_open, filename, O_RDONLY|O_LARGEFILE|O_CLOEXEC, 0);
if (f->fd < 0) return 0;
f->flags = F_NOWR | F_PERM;