wrap fgets to retry on EINTR

The read() underlying fgets() can be interrupted by a signal handler
causing fgets() to return NULL.  Before we started handling SIGWINCH,
the odds of interrupting a read were low and typically resulted in
termination anyway.  Replace all fgets calls with a wrapper that retries
in EINTR.

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/common/util-common.h b/src/common/util-common.h
index 576702fa..ca8db5ab 100644
--- a/src/common/util-common.h
+++ b/src/common/util-common.h
@@ -20,6 +20,7 @@
 #ifndef _PM_UTIL_COMMON_H
 #define _PM_UTIL_COMMON_H
 
+#include <stdio.h>
 #include <sys/stat.h> /* struct stat */
 
 const char *mbasename(const char *path);
@@ -27,6 +28,8 @@ char *mdirname(const char *path);
 
 int llstat(char *path, struct stat *buf);
 
+char *safe_fgets(char *s, int size, FILE *stream);
+
 #ifndef HAVE_STRNDUP
 char *strndup(const char *s, size_t n);
 #endif