[Sanitizer] implement internal_strcspn
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@162272 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/sanitizer_common/sanitizer_libc.cc b/lib/sanitizer_common/sanitizer_libc.cc
index c433242..6fa05e4 100644
--- a/lib/sanitizer_common/sanitizer_libc.cc
+++ b/lib/sanitizer_common/sanitizer_libc.cc
@@ -56,6 +56,15 @@
return s;
}
+uptr internal_strcspn(const char *s, const char *reject) {
+ uptr i;
+ for (i = 0; s[i]; i++) {
+ if (internal_strchr(reject, s[i]) != 0)
+ return i;
+ }
+ return i;
+}
+
char* internal_strdup(const char *s) {
uptr len = internal_strlen(s);
char *s2 = (char*)InternalAlloc(len + 1);
diff --git a/lib/sanitizer_common/sanitizer_libc.h b/lib/sanitizer_common/sanitizer_libc.h
index 8da4286..257af2c 100644
--- a/lib/sanitizer_common/sanitizer_libc.h
+++ b/lib/sanitizer_common/sanitizer_libc.h
@@ -33,6 +33,7 @@
void *internal_memset(void *s, int c, uptr n);
char* internal_strchr(const char *s, int c);
int internal_strcmp(const char *s1, const char *s2);
+uptr internal_strcspn(const char *s, const char *reject);
char *internal_strdup(const char *s);
uptr internal_strlen(const char *s);
char *internal_strncat(char *dst, const char *src, uptr n);
