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authorUlrich Drepper <drepper@redhat.com>2000-02-29 06:34:39 +0000
committerUlrich Drepper <drepper@redhat.com>2000-02-29 06:34:39 +0000
commit6d7496e846fa69d886a8f524003262f6d981cdf0 (patch)
tree372f2e01d4efef095cabd887f9d7e52a08071dbd /manual/examples/genpass.c
parent07e0f7adf622b8a20aa97918a95f521d2d1bb32e (diff)
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Update.
	* crypt/crypt.texi: Moved to...
	* crypt/examples/genpass.c: Moved to...
	* manual/examples/genpass.c: ...here.
	* crypt/examples/mygenpass.c: Moved to...
	* manual/examples/mygenpass.c: ...here.
	* crypt/examples/testpass.c: Moved to...
	* manual/examples/testpass.c: ...here.

	* manual/Makefile (chapters): Add crypt.
	* manual/conf.texi: Add usual header for not-last chapter.
	* manual/crypt.texi: Add special header for last chapter.
Diffstat (limited to 'manual/examples/genpass.c')
-rw-r--r--manual/examples/genpass.c32
1 files changed, 32 insertions, 0 deletions
diff --git a/manual/examples/genpass.c b/manual/examples/genpass.c
new file mode 100644
index 0000000000..a7626dbed5
--- /dev/null
+++ b/manual/examples/genpass.c
@@ -0,0 +1,32 @@
+#include <stdio.h>
+#include <time.h>
+#include <unistd.h>
+#include <crypt.h>
+
+int 
+main(void)
+{
+  unsigned long seed[2];
+  char salt[] = "$1$........";
+  const char *const seedchars = 
+    "./0123456789ABCDEFGHIJKLMNOPQRST"
+    "UVWXYZabcdefghijklmnopqrstuvwxyz";
+  char *password;
+  int i;
+  
+  /* Generate a (not very) random seed.  
+     You should do it better than this...  */
+  seed[0] = time(NULL);
+  seed[1] = getpid() ^ (seed[0] >> 14 & 0x30000);
+  
+  /* Turn it into printable characters from `seedchars'.  */
+  for (i = 0; i < 8; i++)
+    salt[3+i] = seedchars[(seed[i/5] >> (i%5)*6) & 0x3f];
+  
+  /* Read in the user's password and encrypt it.  */
+  password = crypt(getpass("Password:"), salt);
+  
+  /* Print the results.  */
+  puts(password);
+  return 0;
+}