From 208714be01cbccd2b850c50146bf18369579d6cb Mon Sep 17 00:00:00 2001
From: Doug MacEachern <dougm@hyperic.com>
Date: Wed, 26 Mar 2008 21:29:17 +0000
Subject: [PATCH] add strcasestr util

---
 include/sigar_util.h |  5 +++++
 src/sigar_util.c     | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 37 insertions(+)

diff --git a/include/sigar_util.h b/include/sigar_util.h
index 5e2079cb..967bd6c6 100644
--- a/include/sigar_util.h
+++ b/include/sigar_util.h
@@ -44,6 +44,9 @@
 #define sigar_isupper(c) \
     (isupper(((unsigned char)(c))))
 
+#define sigar_tolower(c) \
+    (tolower(((unsigned char)(c))))
+
 #ifdef WIN32
 #define sigar_fileno _fileno
 #define sigar_isatty _isatty
@@ -81,6 +84,8 @@ SIGAR_INLINE char *sigar_skip_multiple_token(char *p, int count);
 
 char *sigar_getword(char **line, char stop);
 
+char *sigar_strcasestr(const char *s1, const char *s2);
+
 int sigar_file2str(const char *fname, char *buffer, int buflen);
 
 int sigar_proc_file2str(char *buffer, int buflen,
diff --git a/src/sigar_util.c b/src/sigar_util.c
index 0d29115c..5626b3dd 100644
--- a/src/sigar_util.c
+++ b/src/sigar_util.c
@@ -290,6 +290,38 @@ int sigar_procfs_args_get(sigar_t *sigar, sigar_pid_t pid,
 
 #endif /* WIN32 */
 
+/* from httpd/server/util.c */
+char *sigar_strcasestr(const char *s1, const char *s2)
+{
+    char *p1, *p2;
+    if (*s2 == '\0') {
+        /* an empty s2 */
+        return((char *)s1);
+    }
+    while(1) {
+        for ( ; (*s1 != '\0') && (sigar_tolower(*s1) != sigar_tolower(*s2)); s1++);
+        if (*s1 == '\0') {
+            return(NULL);
+        }
+        /* found first character of s2, see if the rest matches */
+        p1 = (char *)s1;
+        p2 = (char *)s2;
+        for (++p1, ++p2; sigar_tolower(*p1) == sigar_tolower(*p2); ++p1, ++p2) {
+            if (*p1 == '\0') {
+                /* both strings ended together */
+                return((char *)s1);
+            }
+        }
+        if (*p2 == '\0') {
+            /* second string ended, a match */
+            break;
+        }
+        /* didn't find a match here, try starting at next character in s1 */
+        s1++;
+    }
+    return((char *)s1);
+}
+
 int sigar_mem_calc_ram(sigar_t *sigar, sigar_mem_t *mem)
 {
     sigar_uint64_t lram = (mem->total / (1024 * 1024));