1 files changed, 104 insertions, 0 deletions
diff --git a/gpglib/libgpg.c b/gpglib/libgpg.c
new file mode 100644
index 0000000..7bea385
--- /dev/null
+++ b/gpglib/libgpg.c
@@ -0,0 +1,104 @@
+/*
+** Copyright 2001-2003 Double Precision, Inc.  See COPYING for
+** distribution information.
+*/
+
+
+#include	"config.h"
+#include	<stdio.h>
+#include	<stdlib.h>
+#include	<string.h>
+#include	<unistd.h>
+#include	<signal.h>
+#include	<errno.h>
+#include	<sys/types.h>
+#include	<sys/stat.h>
+#if	HAVE_SYS_TIME_H
+#include	<sys/time.h>
+#endif
+#if HAVE_SYS_WAIT_H
+#include	<sys/wait.h>
+#endif
+#ifndef WEXITSTATUS
+#define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8)
+#endif
+#ifndef WIFEXITED
+#define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
+#endif
+
+#include	"gpg.h"
+#include	"gpglib.h"
+
+int libmail_gpg_stdin= -1, libmail_gpg_stdout= -1,
+	libmail_gpg_stderr= -1;
+pid_t libmail_gpg_pid= -1;
+
+int libmail_gpg_cleanup()
+{
+	int rc=0;
+
+	if (libmail_gpg_stdin >= 0)
+	{
+		close(libmail_gpg_stdin);
+		libmail_gpg_stdin= -1;
+	}
+
+	if (libmail_gpg_stdout >= 0)
+	{
+		close(libmail_gpg_stdout);
+		libmail_gpg_stdout= -1;
+	}
+
+	if (libmail_gpg_stderr >= 0)
+	{
+		close(libmail_gpg_stderr);
+		libmail_gpg_stderr= -1;
+	}
+
+	if (libmail_gpg_pid >= 0 && kill(libmail_gpg_pid, 0) >= 0)
+	{
+		int waitstat;
+		pid_t p;
+
+		while ((p=wait(&waitstat)) != libmail_gpg_pid)
+		{
+			if (p < 0 && errno == ECHILD)
+				return (-1);
+		}
+
+		rc= WIFEXITED(waitstat) ? WEXITSTATUS(waitstat): -1;
+		libmail_gpg_pid= -1;
+	}
+	return (rc);
+}
+
+static char *optionfile(const char *gpgdir)
+{
+	char *p=malloc(strlen(gpgdir)+sizeof("/options"));
+
+	if (p)
+		strcat(strcpy(p, gpgdir), "/options");
+	return (p);
+}
+
+/*
+** Determine of GPG is available by checking for the options file, and the
+** gpg binary itself.
+*/
+
+int libmail_gpg_has_gpg(const char *gpgdir)
+{
+	char *p=optionfile(gpgdir);
+	struct stat stat_buf;
+	int rc;
+
+	if (!p)
+		return (-1);
+
+	rc=stat(p, &stat_buf);
+	free(p);
+	if (rc == 0)
+		rc=stat(GPG, &stat_buf);
+
+	return (rc);
+}