Open /proc/self/oom_adj with O_RDONLY or O_WRONLY as necessary, rather

than O_RDWR.

2 files changed, 5 insertions, 6 deletions

diff --git a/openbsd-compat/port-linux.c b/openbsd-compat/port-linux.c
index bc4924727..b7142ba90 100644
--- a/openbsd-compat/port-linux.c
+++ b/openbsd-compat/port-linux.c
@@ -197,10 +197,10 @@ ssh_selinux_setup_pty(char *pwname, const char *tty)
 
 #ifdef OOM_ADJUST
 /* Get the out-of-memory adjustment file for the current process */
-int
-oom_adj_open(void)
+static int
+oom_adj_open(int oflag)
 {
-        int fd = open("/proc/self/oom_adj", O_RDWR);
+        int fd = open("/proc/self/oom_adj", oflag);
         if (fd < 0)
                 logit("error opening /proc/self/oom_adj: %s", strerror(errno));
         return fd;
@@ -211,7 +211,7 @@ int
 oom_adj_get(char *buf, size_t maxlen)
 {
         ssize_t n;
-        int fd = oom_adj_open();
+        int fd = oom_adj_open(O_RDONLY);
         if (fd < 0)
                 return -1;
         n = read(fd, buf, maxlen);
@@ -228,7 +228,7 @@ int
 oom_adj_set(const char *buf)
 {
         ssize_t n;
-        int fd = oom_adj_open();
+        int fd = oom_adj_open(O_WRONLY);
         if (fd < 0)
                 return -1;
         n = write(fd, buf, strlen(buf));
diff --git a/openbsd-compat/port-linux.h b/openbsd-compat/port-linux.h
index 2a3271a93..6e6a8acfd 100644
--- a/openbsd-compat/port-linux.h
+++ b/openbsd-compat/port-linux.h
@@ -26,7 +26,6 @@ void ssh_selinux_setup_exec_context(char *);
 #endif
 
 #ifdef OOM_ADJUST
-int oom_adj_open(void);
 int oom_adj_get(char *buf, size_t maxlen);
 int oom_adj_set(const char *buf);
 #endif