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-rw-r--r--compat/strcasestr.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/compat/strcasestr.c b/compat/strcasestr.c
new file mode 100644
index 0000000..b96414d
--- /dev/null
+++ b/compat/strcasestr.c
@@ -0,0 +1,23 @@
+#include <string.h>
+#include <ctype.h>
+
+char *gitstrcasestr(const char *haystack, const char *needle)
+{
+ int nlen = strlen(needle);
+ int hlen = strlen(haystack) - nlen + 1;
+ int i;
+
+ for (i = 0; i < hlen; i++) {
+ int j;
+ for (j = 0; j < nlen; j++) {
+ unsigned char c1 = haystack[i+j];
+ unsigned char c2 = needle[j];
+ if (toupper(c1) != toupper(c2))
+ goto next;
+ }
+ return (char *) haystack + i;
+ next:
+ ;
+ }
+ return NULL;
+}