From 1ac35866f21e3f1a65412ab277a7e045b7ab43a0 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Sat, 26 Sep 2026 13:16:25 +0200 Subject: Rewrite librecrypt_add_algorithm to use string building functions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- librecrypt_concat_memmove_.c | 62 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 librecrypt_concat_memmove_.c (limited to 'librecrypt_concat_memmove_.c') diff --git a/librecrypt_concat_memmove_.c b/librecrypt_concat_memmove_.c new file mode 100644 index 0000000..d25ca44 --- /dev/null +++ b/librecrypt_concat_memmove_.c @@ -0,0 +1,62 @@ +/* See LICENSE file for copyright and license details. */ +#include "common.h" +#ifndef TEST + + +extern inline void librecrypt_concat_memmove_(struct concat_state *state, const char *text, size_t len); + + +#else + + +int +main(void) +{ + char buf[5]; + struct concat_state state = {buf, sizeof(buf), 0u}; + + SET_UP_ALARM(); + INIT_RESOURCE_TEST(); + + memset(buf, 'x', sizeof(buf)); + + librecrypt_concat_memmove_(&state, "abcdef", 6u); + assert(!memcmp(buf, "abcd\0", sizeof(buf))); + assert(state.buf == &buf[4u]); + assert(state.size == 1u); + assert(state.len == 6u); + librecrypt_concat_memmove_(&state, "z", 1u); + assert(!memcmp(buf, "abcd\0", sizeof(buf))); + assert(state.len == 7u); + + state = (struct concat_state){NULL, 0u, 0u}; + librecrypt_concat_memmove_(&state, "abc", 3u); + assert(state.len == 3u); + + buf[0u] = 'a'; + buf[1u] = 'b'; + buf[2u] = 'c'; + buf[3u] = 'd'; + buf[4u] = 'e'; + state = (struct concat_state){buf, 5u, 0u}; + librecrypt_concat_memmove_(&state, buf, 4u); + assert(!memcmp(buf, "abcd", 5u)); + assert(state.len == 4u); + + buf[0u] = 'a'; + buf[1u] = 'b'; + buf[2u] = 'c'; + buf[3u] = 'd'; + buf[4u] = 'e'; + state = (struct concat_state){buf, 5u, 0u}; + librecrypt_concat_memmove_(&state, &buf[1u], 3u); + fprintf(stderr, "[[%s]]\n", buf); + assert(!memcmp(buf, "bcd", 3u)); + assert(state.len == 3u); + + STOP_RESOURCE_TEST(); + return 0; +} + + +#endif -- cgit v1.3.1