Be more POSIX compliant w.r.t. errno; fixes erroneousl reporting of errors on FreeBSD

4 files changed, 14 insertions, 12 deletions

diff --git a/examples/2-stream.C b/examples/2-stream.C
index 9d703f6..29c1bf6 100644
--- a/examples/2-stream.C
+++ b/examples/2-stream.C
@@ -72,7 +72,7 @@ int main(int argc, char const * arg[])
   soxr_delete(soxr);
   free(obuf), free(ibuf);
                                                               /* Diagnostics: */
-  fprintf(stderr, "%-26s %s; I/O: %s\n", arg[0],
-      soxr_strerror(error), errno? strerror(errno) : "no error");
-  return error || errno;
+  fprintf(stderr, "%-26s %s; I/O: %s\n", arg[0], soxr_strerror(error),
+      ferror(stdin) || ferror(stdout)? strerror(errno) : "no error");
+  return !!error;
 }
diff --git a/examples/3-options-input-fn.c b/examples/3-options-input-fn.c
index bb0bf2d..7acc2d5 100644
--- a/examples/3-options-input-fn.c
+++ b/examples/3-options-input-fn.c
@@ -104,7 +104,8 @@ int main(int n, char const * arg[])
   soxr_delete(soxr);
   free(obuf), free(ibuf);
                                                               /* Diagnostics: */
-  fprintf(stderr, "%-26s %s; %lu clips; I/O: %s\n", arg0, soxr_strerror(error),
-      (long unsigned)clips, errno? strerror(errno) : "no error");
-  return error || errno;
+  fprintf(stderr, "%-26s %s; %lu clips; I/O: %s\n",
+      arg0, soxr_strerror(error), (long unsigned)clips,
+      ferror(stdin) || ferror(stdout)? strerror(errno) : "no error");
+  return !!error;
 }
diff --git a/examples/4-split-channels.c b/examples/4-split-channels.c
index a441598..d6448aa 100644
--- a/examples/4-split-channels.c
+++ b/examples/4-split-channels.c
@@ -141,7 +141,8 @@ int main(int n, char const * arg[])
   free(obuf), free(ibuf), free(obufs), free(ibufs);
   free(obuf_ptrs), free(ibuf_ptrs);
                                                               /* Diagnostics: */
-  fprintf(stderr, "%-26s %s; %lu clips; I/O: %s\n", arg0, soxr_strerror(error),
-      (long unsigned)clips, errno? strerror(errno) : "no error");
-  return error || errno;
+  fprintf(stderr, "%-26s %s; %lu clips; I/O: %s\n",
+      arg0, soxr_strerror(error), (long unsigned)clips,
+      ferror(stdin) || ferror(stdout)? strerror(errno) : "no error");
+  return !!error;
 }
diff --git a/examples/5-variable-rate.c b/examples/5-variable-rate.c
index a2496c9..dc9efa3 100644
--- a/examples/5-variable-rate.c
+++ b/examples/5-variable-rate.c
@@ -88,7 +88,7 @@ int main(int argc, char *arg[])
     soxr_delete(soxr);
   }
                                                               /* Diagnostics: */
-  fprintf(stderr, "%-26s %s; I/O: %s\n", arg[0],
-      soxr_strerror(error), errno? strerror(errno) : "no error");
-  return error || errno;
+  fprintf(stderr, "%-26s %s; I/O: %s\n", arg[0], soxr_strerror(error),
+      ferror(stdin) || ferror(stdout)? strerror(errno) : "no error");
+  return !!error;
 }