From 71c6bcbb0b298483c7e3abab7e5d88a25c4d0c7c Mon Sep 17 00:00:00 2001
From: "Christopher J. Morrone" <morrone2@llnl.gov>
Date: Mon, 17 Jul 2006 23:16:26 +0000
Subject: [PATCH] Add xshort_hostname function.
---
src/common/xstring.c | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/src/common/xstring.c b/src/common/xstring.c
index ae1b93d3f76..65bfe544fbb 100644
--- a/src/common/xstring.c
+++ b/src/common/xstring.c
@@ -68,6 +68,7 @@ strong_alias(xstrdup, slurm_xstrdup);
strong_alias(xstrndup, slurm_xstrndup);
strong_alias(xbasename, slurm_xbasename);
strong_alias(_xstrsubstitute, slurm_xstrsubstitute);
+strong_alias(xshort_hostname, slurm_xshort_hostname);
/*
* Ensure that a string has enough space to add 'needed' characters.
@@ -314,3 +315,29 @@ void _xstrsubstitute(char **str, const char *pattern, const char *replacement)
strcpy((*str)+pat_offset+rep_len, end_copy);
xfree(end_copy);
}
+
+/* xshort_hostname
+ * Returns an xmalloc'd string containing the hostname
+ * of the local machine. The hostname contains only
+ * the short version of the hostname (e.g. "linux123.foo.bar"
+ * becomes "linux123")
+ *
+ * Returns NULL on error.
+ */
+char *xshort_hostname(void)
+{
+ int error_code;
+ char *dot_ptr, path_name[1024];
+
+ error_code = gethostname (path_name, sizeof(path_name));
+ if (error_code)
+ return NULL;
+
+ dot_ptr = strchr (path_name, '.');
+ if (dot_ptr == NULL)
+ dot_ptr = path_name + strlen(path_name);
+ else
+ dot_ptr[0] = '\0';
+
+ return xstrdup(path_name);
+}
--
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