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-rw-r--r--src/examples/mcat.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/src/examples/mcat.c b/src/examples/mcat.c
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--- /dev/null
+++ b/src/examples/mcat.c
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+/* mcat.c
+
+ Prints files specified on command line to the console, using
+ mmap. */
+
+#include <stdio.h>
+#include <syscall.h>
+
+int
+main (int argc, char *argv[])
+{
+ int i;
+
+ for (i = 1; i < argc; i++)
+ {
+ int fd;
+ mapid_t map;
+ void *data = (void *) 0x10000000;
+ int size;
+
+ /* Open input file. */
+ fd = open (argv[i]);
+ if (fd < 0)
+ {
+ printf ("%s: open failed\n", argv[i]);
+ return EXIT_FAILURE;
+ }
+ size = filesize (fd);
+
+ /* Map files. */
+ map = mmap (fd, data);
+ if (map == MAP_FAILED)
+ {
+ printf ("%s: mmap failed\n", argv[i]);
+ return EXIT_FAILURE;
+ }
+
+ /* Write file to console. */
+ write (STDOUT_FILENO, data, size);
+
+ /* Unmap files (optional). */
+ munmap (map);
+ }
+ return EXIT_SUCCESS;
+}