1 files changed, 59 insertions, 0 deletions
diff --git a/reference/C/CONTRIB/SNIP/fcompare.c b/reference/C/CONTRIB/SNIP/fcompare.c
new file mode 100755
index 0000000..7961d02
--- /dev/null
+++ b/reference/C/CONTRIB/SNIP/fcompare.c
@@ -0,0 +1,59 @@
+/*
+**  FCOMPARE.C - Compare 2 files
+**
+**  public domain demo by Bob Stout
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+enum {ERROR = -1, SUCCESS, FAIL};
+
+#define BUFSIZE 16384
+static char buf[2][BUFSIZE];
+
+int fcompare(const char *fname1, const char *fname2)
+{
+      FILE *f1, *f2;
+      int retval = SUCCESS;
+
+      if (NULL == (f1 = fopen(fname1, "rb")))
+            return ERROR;
+      if (NULL != (f2 = fopen(fname2, "rb")))
+      {
+            size_t size1, size2;
+
+            do
+            {
+                  size1 = fread(buf[0], 1, BUFSIZE, f1);
+                  size2 = fread(buf[1], 1, BUFSIZE, f2);
+                  if (0 == (size1 | size2))
+                        break;
+                  if ((size1 != size2) || memcmp(buf[0], buf[1], size1))
+                  {
+                        retval = FAIL;
+                        break;
+                  }
+            } while (size1 && size2);
+            fclose(f2);
+      }
+      else  retval = ERROR;
+      fclose(f1);
+      return retval;
+}
+
+#ifdef TEST
+
+int main(int argc, char *argv[])
+{
+      if (3 > argc)
+      {
+            puts("Usage: FCOMPARE file1 file2");
+            return 1;
+      }
+      printf("fcompare(%s, %s) returned %d\n", argv[1], argv[2],
+            fcompare(argv[1], argv[2]));
+}
+
+#endif /* TEST */