From bf4f2bb63ed01026b1078f5f7ebfc005bb4bf6d3 Mon Sep 17 00:00:00 2001 From: dzwdz Date: Wed, 29 Jun 2022 23:07:21 +0200 Subject: init/fs: tmpfs driver with support for creating new files --- src/shared/mem.c | 9 +++++++++ src/shared/mem.h | 1 + 2 files changed, 10 insertions(+) (limited to 'src/shared') diff --git a/src/shared/mem.c b/src/shared/mem.c index 35b2f14..3075963 100644 --- a/src/shared/mem.c +++ b/src/shared/mem.c @@ -1,6 +1,15 @@ #include #include +void *memchr(const void *s, int c, size_t n) { + const unsigned char *s2 = s; + for (size_t i = 0; i < n; i++) { + if (s2[i] == (unsigned char)c) + return &s2[i]; + } + return NULL; +} + int memcmp(const void *s1, const void *s2, size_t n) { const unsigned char *c1 = s1, *c2 = s2; for (size_t i = 0; i < n; i++) { diff --git a/src/shared/mem.h b/src/shared/mem.h index 7036381..8eb091f 100644 --- a/src/shared/mem.h +++ b/src/shared/mem.h @@ -1,6 +1,7 @@ #pragma once #include +void *memchr(const void *s, int c, size_t n); int memcmp(const void *s1, const void *s2, size_t n); void *memcpy(void *dest, const void *src, size_t n); -- cgit v1.2.3