X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=ustctl%2Fscanning_functions.c;fp=ustctl%2Fscanning_functions.c;h=0cf809e061a126ac57f6699c21d48756f7d006e1;hb=0c89df6cb75f1d967003137e7fc334af1128a42f;hp=0000000000000000000000000000000000000000;hpb=91594b712729c0d855efeab849c2093706336941;p=ust.git

diff --git a/ustctl/scanning_functions.c b/ustctl/scanning_functions.c
new file mode 100644
index 0000000..0cf809e
--- /dev/null
+++ b/ustctl/scanning_functions.c
@@ -0,0 +1,84 @@
+/* Copyright (C) 2011  Ericsson AB, Nils Carlson <nils.carlson@ericsson.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <ust/ustcmd.h>
+#include "usterr.h"
+
+
+pid_t parse_pid(const char *pid_string)
+{
+	pid_t pid;
+
+	errno = 0;
+	pid = strtoull(pid_string, NULL, 10);
+	if (errno) {
+		perror("Failed to parse pid");
+		exit(EXIT_FAILURE);
+	}
+
+	return pid;
+}
+
+int scan_ch_marker(const char *channel_marker, char **channel, char **marker)
+{
+	int result;
+
+	*channel = NULL;
+	*marker = NULL;
+
+	result = sscanf(channel_marker, "%a[^/]/%as", channel, marker);
+	if (result != 2) {
+		if (errno) {
+			PERROR("Failed to read channel and marker names");
+		} else {
+			ERR("Failed to parse marker and channel names");
+		}
+		if (*channel) {
+			free(*channel);
+		}
+		if (*marker) {
+			free(*marker);
+		}
+		return -1;
+	}
+
+	return 0;
+}
+
+int scan_ch_and_num(const char *ch_num, char **channel, unsigned int *num)
+{
+	int result;
+
+	*channel = NULL;
+
+	result = sscanf(ch_num, "%a[^/]/%u", channel, num);
+	if (result != 2) {
+		if (errno) {
+			PERROR("Failed to parse channel and number");
+		} else {
+			ERR("Failed to parse channel and number");
+		}
+		if (*channel) {
+			free(*channel);
+		}
+		return -1;
+	}
+
+	return 0;
+}