Reorganisation of the source tree

[ghc-hetmet.git] / utils / touchy / touchy.c

diff --git a/utils/touchy/touchy.c b/utils/touchy/touchy.c
new file mode 100644 (file)
index 0000000..90fb31e
--- /dev/null
+++ b/utils/touchy/touchy.c
@@ -0,0 +1,63 @@
+/*
+ * Simple _utime() wrapper for setting the mod. time on files
+ * to the current system time.
+ *
+ */
+#if !defined(_MSC_VER) && !defined(__MINGW32__) && !defined(_WIN32)
+#error "Win32-only, the platform you're using is supposed to have 'touch' already."
+#else
+#include <stdio.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <errno.h>
+
+int
+main(int argc, char** argv)
+{
+  int rc;
+  int i=0;
+  int fd;
+  int wBitSet = 0;
+  struct _stat sb;
+
+  if (argc == 1) {
+    fprintf(stderr, "Usage: %s <files>\n", argv[0]);
+    return 1;
+  }
+  
+  
+  while (i++ < (argc-1)) {
+    if ( (_access(argv[i], 00) < 0) && (errno == ENOENT || errno == EACCES) ) {
+       /* File doesn't exist, try creating it. */
+      if ( (fd = _open(argv[i], _O_CREAT | _O_EXCL | _O_TRUNC, _S_IREAD | _S_IWRITE)) < 0 ) {
+       fprintf(stderr, "Unable to create %s, skipping.\n", argv[i]);
+      } else {
+       _close(fd);
+      }
+    }
+    if ( (_access(argv[i], 02)) < 0 ) {
+       /* No write permission, try setting it first. */
+       if (_stat(argv[i], &sb) < 0) {
+          fprintf(stderr, "Unable to change mod. time for %s  (%d)\n", argv[i], errno);
+          continue;
+       }
+       if (_chmod(argv[i], (sb.st_mode & _S_IREAD) | _S_IWRITE) < 0) {
+          fprintf(stderr, "Unable to change mod. time for %s  (%d)\n", argv[i], errno);
+          continue;
+       }
+       wBitSet = 1;
+    }
+    if ( (rc = _utime(argv[i],NULL)) < 0) {
+      fprintf(stderr, "Unable to change mod. time for %s  (%d)\n", argv[i], errno);
+    }
+    if (wBitSet) {
+       /* Turn the file back into a read-only file */
+       _chmod(argv[i], (sb.st_mode & _S_IREAD));
+       wBitSet = 0;
+    }
+  }
+  
+  return 0;
+}
+#endif