* chpst.c, svwaitdown.c, svwaitup.c: fix checks for return value of

    open_* functions (thx David Reiss).

3 files changed, 3 insertions, 3 deletions

diff --git a/src/chpst.c b/src/chpst.c
index 6518c55..f279d44 100644
--- a/src/chpst.c
+++ b/src/chpst.c
@@ -110,7 +110,7 @@ void edir(const char *dirname) {
   direntry *d;
   int i;
 
-  if (! (wdir =open_read(".")))
+  if ((wdir =open_read(".")) == -1)
     fatal("unable to open current working directory");
   if (chdir(dirname)) fatal2("unable to switch to directory", dirname);
   if (! (dir =opendir("."))) fatal2("unable to open directory", dirname);
diff --git a/src/svwaitdown.c b/src/svwaitdown.c
index 26b815f..6cd3efc 100644
--- a/src/svwaitdown.c
+++ b/src/svwaitdown.c
@@ -65,7 +65,7 @@ int main(int argc, const char * const *argv) {
   argv +=optind;
   if (! argv || ! *argv) usage();
 
-  if (! (wdir =open_read(".")))
+  if ((wdir =open_read(".")) == -1)
     fatal("unable to open current working directory");
 
   for (dir =argv; *dir; ++dir) {
diff --git a/src/svwaitup.c b/src/svwaitup.c
index b7f21e8..e2d6c57 100644
--- a/src/svwaitup.c
+++ b/src/svwaitup.c
@@ -58,7 +58,7 @@ int main(int argc, const char * const *argv) {
   argv +=optind;
   if (! argv || ! *argv) usage();
 
-  if (! (wdir =open_read(".")))
+  if ((wdir =open_read(".")) == -1)
     fatal("unable to open current working directory");
 
   dir =argv;