X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/secnet/blobdiff_plain/100683441c5b1445a8d6c970aea6c7fa92e974e0..ca0a30fc297d17a19e82ca0f1c36ef5e11c752fa:/util.c?ds=inline

diff --git a/util.c b/util.c
index 094870f..aa85559 100644
--- a/util.c
+++ b/util.c
@@ -162,6 +162,20 @@ int32_t write_mpbin(MP_INT *a, uint8_t *buffer, int32_t buflen)
     return i;
 }
 
+void setcloexec(int fd) {
+    int r=fcntl(fd, F_GETFD);
+    if (r<0) fatal_perror("fcntl(,F_GETFD) failed");
+    r=fcntl(fd, F_SETFD, r|FD_CLOEXEC);
+    if (r<0) fatal_perror("fcntl(,F_SETFD,|FD_CLOEXEC) failed");
+}
+
+void pipe_cloexec(int fd[2]) {
+    int r=pipe(fd);
+    if (r) fatal_perror("pipe");
+    setcloexec(fd[0]);
+    setcloexec(fd[1]);
+}
+
 static const char *phases[NR_PHASES]={
     "PHASE_INIT",
     "PHASE_GETOPTS",