From f14f89b26611aa52c15665850e882a7d0b0d6232 Mon Sep 17 00:00:00 2001
From: Till Kamppeter <till.kamppeter@gmail.com>
Date: Tue, 10 Aug 2010 19:07:55 +0200
Subject: foomatic-filters 4.0.5-0ubuntu1

---
 util.c | 29 ++++++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

(limited to 'util.c')

diff --git a/util.c b/util.c
index cb9b043..9055648 100644
--- a/util.c
+++ b/util.c
@@ -110,7 +110,7 @@ void strlower(char *dest, size_t destlen, const char *src)
 
 int isempty(const char *string)
 {
-    return string && string[0] == '\0';
+    return !string || string[0] == '\0';
 }
 
 const char * strncpy_omit(char* dest, const char* src, size_t n, int (*omit_func)(int))
@@ -137,6 +137,30 @@ int omit_unprintables(int c) { return c>= '\x00' && c <= '\x1f'; }
 int omit_shellescapes(int c) { return strchr(shellescapes, c) != NULL; }
 int omit_specialchars(int c) { return omit_unprintables(c) || omit_shellescapes(c); }
 int omit_whitespace(int c) { return c == ' ' || c == '\t'; }
+int omit_whitespace_newline(int c) { return omit_whitespace(c) || c == '\n'; }
+
+#ifndef HAVE_STRCASESTR
+char *
+strcasestr (const char *haystack, const char *needle)
+{
+    char *p, *startn = 0, *np = 0;
+
+    for (p = haystack; *p; p++) {
+        if (np) {
+	    if (toupper(*p) == toupper(*np)) {
+	        if (!*++np)
+		    return startn;
+	    } else
+	        np = 0;
+	} else if (toupper(*p) == toupper(*needle)) {
+	    np = needle + 1;
+	    startn = p;
+	}
+    }
+
+    return 0;
+}
+#endif
 
 size_t strlcpy(char *dest, const char *src, size_t size)
 {
@@ -248,6 +272,9 @@ const char * strncpy_tochar(char *dest, const char *src, size_t max, const char
 {
     const char *psrc = src;
     char *pdest = dest;
+    if (!*psrc) {
+       return NULL;
+    }
     while (*psrc && --max > 0 && !strchr(stopchars, *psrc)) {
         *pdest = *psrc;
         pdest++;
-- 
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