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diff --git a/src/common/linux/linux_libc_support.cc b/src/common/linux/linux_libc_support.cc
--- a/src/common/linux/linux_libc_support.cc
+++ b/src/common/linux/linux_libc_support.cc
@@ -133,16 +133,27 @@ const char* my_strrchr(const char* hayst
while (*haystack) {
if (*haystack == needle)
ret = haystack;
haystack++;
}
return ret;
}
+const char* my_strstr(const char* haystack, const char* needle) {
+ while (*haystack != 0) {
+ if((*haystack == *needle) &&
+ (my_strncmp(haystack, needle, my_strlen(needle)) == 0)) {
+ return haystack;
+ }
+ haystack++;
+ }
+ return nullptr;
+}
+
void* my_memchr(const void* src, int needle, size_t src_len) {
const unsigned char* p = (const unsigned char*)src;
const unsigned char* p_end = p + src_len;
for (; p < p_end; ++p) {
if (*p == needle)
return (void*)p;
}
return NULL;
diff --git a/src/common/linux/linux_libc_support.h b/src/common/linux/linux_libc_support.h
--- a/src/common/linux/linux_libc_support.h
+++ b/src/common/linux/linux_libc_support.h
@@ -62,16 +62,18 @@ extern unsigned my_uint_len(uintmax_t i)
// i: the unsigned integer to serialise.
// i_len: the length of the integer in base 10 (see |my_uint_len|).
extern void my_uitos(char* output, uintmax_t i, unsigned i_len);
extern const char* my_strchr(const char* haystack, char needle);
extern const char* my_strrchr(const char* haystack, char needle);
+extern const char *my_strstr(const char *haystack, const char *needle);
+
// Read a hex value
// result: (output) the resulting value
// s: a string
// Returns a pointer to the first invalid charactor.
extern const char* my_read_hex_ptr(uintptr_t* result, const char* s);
extern const char* my_read_decimal_ptr(uintptr_t* result, const char* s);