1 files changed, 77 insertions, 0 deletions
diff --git a/gpglib/tempname.c b/gpglib/tempname.c
new file mode 100644
index 0000000..30a6faf
--- /dev/null
+++ b/gpglib/tempname.c
@@ -0,0 +1,77 @@
+/*
+** Copyright 2001-2003 Double Precision, Inc.  See COPYING for
+** distribution information.
+*/
+
+
+#include "config.h"
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <time.h>
+#if TIME_WITH_SYS_TIME
+#include <sys/time.h>
+#include <time.h>
+#else
+#if HAVE_SYS_TIME_H
+#include <sys/time.h>
+#else
+#include <time.h>
+#endif
+#endif
+#include "tempname.h"
+
+static const char base64[] =
+"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-,";
+
+int libmail_tempfile(char *filename_buf)
+{
+	unsigned long seed;
+	int i;
+	int fd;
+
+#if HAVE_GETTIMEOFDAY
+	struct timeval tv;
+
+	gettimeofday(&tv, NULL);
+
+	seed=tv.tv_sec;
+	seed ^= tv.tv_usec << 16;
+#else
+	time_t t;
+
+	time(&t);
+	seed=t;
+#endif
+	seed ^= getpid();
+
+	for (i=0; i<1000; i++, seed += 5000)
+	{
+		char *p;
+		unsigned long n;
+
+		strcpy(filename_buf, "/tmp/mimegpg.");
+
+		p=filename_buf + strlen(filename_buf);
+
+		n=seed;
+		*p++=base64[ n % 64 ]; n /= 64;
+		*p++=base64[ n % 64 ]; n /= 64;
+		*p++=base64[ n % 64 ]; n /= 64;
+		*p++=base64[ n % 64 ]; n /= 64;
+		*p++=base64[ n % 64 ]; n /= 64;
+		*p++=base64[ n % 64 ];
+		*p=0;
+
+		if ((fd=open(filename_buf, O_RDWR | O_CREAT | O_EXCL, 0600))
+		    >= 0)
+			return (fd);
+
+
+		if (errno != EEXIST)
+			break;
+	}
+	return (-1);
+}