1 files changed, 100 insertions, 0 deletions
diff --git a/ltp_framework/lib/get_path.c b/ltp_framework/lib/get_path.c
new file mode 100644
index 0000000..6501a06
--- /dev/null
+++ b/ltp_framework/lib/get_path.c
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2010 Cyril Hrubis chrubis@suse.cz
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ */
+
+ /*
+  * Looks for binary prog_name in $PATH.
+  *
+  * If such file exists and if you are able at least to read it, zero is
+  * returned and absolute path to the file is filled into buf. In case buf is
+  * too short to hold the absolute path + prog_name for the file we are looking
+  * for -1 is returned as well as when there is no such file in all paths in
+  * $PATH.
+  */
+
+#include "test.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#define MIN(a, b) ((a)<(b)?(a):(b))
+
+static int file_exist(const char *path)
+{
+	struct stat st;
+
+	if (!access(path, R_OK) && !stat(path, &st) && S_ISREG(st.st_mode))
+		return 1;
+
+	return 0;
+}
+
+int tst_get_path(const char *prog_name, char *buf, size_t buf_len)
+{
+	const char *path = (const char*) getenv("PATH");
+	const char *start = path;
+	const char *end;
+	size_t size, ret;
+
+
+	if (path == NULL)
+		return -1;
+
+	do {
+		end = strchr(start, ':');
+
+		if (end != NULL)
+			snprintf(buf, MIN(buf_len, (size_t)(end - start + 1)), "%s", start);
+		else
+			snprintf(buf, buf_len, "%s", start);
+
+		size = strlen(buf);
+
+		/*
+		 * "::" inside $PATH, $PATH ending with ':' or $PATH starting
+		 * with ':' should be expanded into current working directory.
+		 */
+		if (size == 0) {
+			snprintf(buf, buf_len, ".");
+			size = strlen(buf);
+		}
+
+		/*
+		 * If there is no '/' ad the end of path from $PATH add it.
+		 */
+		if (buf[size - 1] != '/')
+			ret = snprintf(buf + size, buf_len - size, "/%s", prog_name);
+		else
+			ret = snprintf(buf + size, buf_len - size, "%s", prog_name);
+
+		if (buf_len - size > ret && file_exist(buf))
+			return 0;
+
+		start = end + 1;
+
+	} while (end != NULL);
+
+	return -1;
+}
+\ No newline at end of file