From f5e48e94a2f4d4bbd6e5628c7f2afafc6dbcc459 Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Thu, 7 Mar 2024 17:28:52 -0500 Subject: build: Build mlibc + add distclean target Signed-off-by: Ian Moffett --- lib/mlibc/tests/posix/fmemopen.c | 150 --------------------------------------- 1 file changed, 150 deletions(-) delete mode 100644 lib/mlibc/tests/posix/fmemopen.c (limited to 'lib/mlibc/tests/posix/fmemopen.c') diff --git a/lib/mlibc/tests/posix/fmemopen.c b/lib/mlibc/tests/posix/fmemopen.c deleted file mode 100644 index 4d5046e..0000000 --- a/lib/mlibc/tests/posix/fmemopen.c +++ /dev/null @@ -1,150 +0,0 @@ -#ifndef _GNU_SOURCE -#define _GNU_SOURCE -#endif - -#include -#include -#include -#include -#include - -#define BUFFER0_SIZE 0x1000 -#define BUFFER1 "Hello world" -#define BUFFER1_SIZE (sizeof(BUFFER1)) - -int main() { - // test seek with mode "r" - FILE *f = fmemopen(NULL, BUFFER0_SIZE, "r"); - assert(f); - - int ret = fseek(f, 0, SEEK_END); - assert(!ret); - long pos = ftell(f); - fprintf(stderr, "pos = %ld\n", pos); - // Despite the fact that this is correct behavior (see below), - // this sometimes fails on glibc; newlib seems to get this wrong, too. - // to quote what posix says about it: - // > The stream shall also maintain the size of the current buffer contents; - // > use of fseek() or fseeko() on the stream with SEEK_END shall seek relative to this size. - // > For modes r and r+ the size shall be set to the value given by the size argument. -#if !defined(__GLIBC__) - assert(pos == BUFFER0_SIZE); -#endif - - fclose(f); - - // test seek with mode "w" - f = fmemopen(NULL, BUFFER0_SIZE, "w"); - assert(f); - - ret = fseek(f, 0, SEEK_END); - assert(!ret); - pos = ftell(f); - assert(pos == 0); - - fclose(f); - - // test seek with mode "a" and a NULL buffer - f = fmemopen(NULL, BUFFER0_SIZE, "a"); - assert(f); - - ret = fseek(f, 0, SEEK_END); - assert(!ret); - pos = ftell(f); - assert(pos == 0); - - fclose(f); - - // test seek with mode "a" and a buffer containing a '\0' - f = fmemopen(BUFFER1, BUFFER1_SIZE + 2, "a"); - assert(f); - - pos = ftell(f); - assert(pos == (long) (BUFFER1_SIZE - 1)); - - ret = fseek(f, 0, SEEK_SET); - assert(!ret); - pos = ftell(f); - assert(!pos); - - ret = fseek(f, 0, SEEK_END); - assert(!ret); - pos = ftell(f); - assert(pos == (long) (BUFFER1_SIZE - 1)); - - fclose(f); - - // test seek with mode "a" and a buffer not containing a '\0' - f = fmemopen(BUFFER1, BUFFER1_SIZE - 2, "a"); - assert(f); - - ret = fseek(f, 0, SEEK_END); - assert(!ret); - pos = ftell(f); - assert(pos == (long) (BUFFER1_SIZE - 2)); - - fclose(f); - - f = fmemopen(BUFFER1, BUFFER1_SIZE, "r"); - assert(f); - - ret = fseek(f, 0, SEEK_SET); - assert(!ret); - - char buf[BUFFER1_SIZE]; - int read = fread(buf, 1, BUFFER1_SIZE - 2, f); - assert(read == BUFFER1_SIZE - 2); - assert(!strncmp(BUFFER1, buf, BUFFER1_SIZE - 2)); - - fseek(f, 0, SEEK_END); - - read = fread(buf, 1, 2, f); - assert(read == 0); - assert(feof(f)); - - fclose(f); - - // Open a buffer for read+write - char *buf1 = strdup(BUFFER1); - f = fmemopen(buf1, BUFFER1_SIZE, "w+"); - assert(f); - assert(strlen(BUFFER1) == BUFFER1_SIZE - 1); - - // seek to somewhere in the middle of the buffer - fseek(f, BUFFER1_SIZE - 5, SEEK_SET); - // write as much data to it as possible - read = fwrite(BUFFER1, 1, 9, f); - rewind(f); - - // seek the the same position in the middle of the buffer - ret = fseek(f, BUFFER1_SIZE - 5, SEEK_SET); - assert(!ret); - memset(buf, 0, BUFFER1_SIZE); - // read what we just wrote - read = fread(buf, 1, 5, f); - // check that the write got correctly truncated - fprintf(stderr, "buf '%s' (%zu)\n", buf, strlen(buf)); - assert(!strncmp(BUFFER1, buf, 4) && strlen(buf) == 4); - - fclose(f); - free(buf1); - - char *buf2 = strdup(BUFFER1); - f = fmemopen(buf2, 0, "r"); - assert(f || errno == EINVAL); - - if(f) { - memset(buf, 0, BUFFER1_SIZE); - read = fread(buf, 10, 1, f); - assert(!read); - rewind(f); - - read = fwrite(BUFFER1, 1, 12, f); - assert(read == 0); - - fclose(f); - } - free(buf2); - - return 0; -} -- cgit v1.2.3