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/* $OpenBSD: fmemopentest.c,v 1.4 2020/08/17 16:17:39 millert Exp $ */
/*
* Copyright (c) 2011 Martin Pieuchot <mpi@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
int
simpletest(void)
{
FILE *s1, *s2;
char string[] = "fmemopen test string!";
char buffer[1024], *buf = NULL;
size_t len;
int c, failures = 0;
s1 = fmemopen(string, strlen(string) + 1, "r");
if (s1 == NULL) {
warn("unable to open a stream s1");
return (1);
}
s2 = fmemopen(buf, 22, "w+");
if (s2 == NULL) {
warn("unable to create a stream s2");
fclose(s1);
return (1);
}
while ((c = fgetc(s1)) != EOF)
fputc(c, s2);
if (ftell(s2) != strlen(string) + 1) {
warnx("failed copy test (1)");
failures++;
}
fclose(s1);
fseek(s2, 0, SEEK_SET);
if (ftell(s2) != 0) {
warnx("failed seek test (2)");
failures++;
}
len = fread(buffer, 1, sizeof(buffer) - 1, s2);
if (len != strlen(string) + 1) {
warnx("failed read test (3) %zu != %zu",
len, strlen(string) + 1);
failures++;
}
return (failures);
}
int
appendtest(const char *mode)
{
FILE *s1;
char string[] = "hello\0 test number 2";
char buffer[256];
size_t len;
int failures = 0;
s1 = fmemopen(string, 19, mode);
if (s1 == NULL)
return (1);
fseek(s1, 0, SEEK_SET);
if (ftell(s1) != 0) {
warnx("failed seek test [%s] (4)", mode);
failures++;
}
/* write should append even though seek position is 0 */
len = fwrite(" world", 1, 6, s1);
if (len != 6) {
warnx("failed write test [%s] (5)", mode);
failures++;
}
if (ftell(s1) != strlen("hello world")) {
warnx("failed seek test [%s] (6)", mode);
failures++;
}
if (mode[1] == '+') {
fseek(s1, 0, SEEK_SET);
len = fread(buffer, 1, sizeof(buffer) - 1, s1);
if (len == 0 || strncmp(string, buffer, len)) {
warnx("failed compare test [%s] (7)", mode);
failures++;
}
}
if (strcmp(string, "hello world")) {
warnx("failed compare test [%s] (8)", mode);
failures++;
}
if (strcmp(string + strlen(string) + 1, "number 2")) {
warnx("failed compare test [%s] (9)", mode);
failures++;
}
return (failures);
}
int
updatetest(void)
{
FILE *s1;
char string[] = "bah, what a day";
char buffer[256];
size_t len;
int failures = 0;
s1 = fmemopen(string, 19, "r+");
if (s1 == NULL)
return (1);
if (ftell(s1) != 0) {
warnx("failed seek test (10)");
failures++;
}
len = fwrite("oh frabjous", 1, 11, s1);
if (len != 11) {
warnx("failed write test (11)");
failures++;
}
fseek(s1, 0, SEEK_SET);
len = fread(buffer, 1, sizeof(buffer) - 1, s1);
if (len == 0 || strncmp(string, buffer, len)) {
warnx("failed compare test (12)");
failures++;
}
if (strcmp(string, "oh frabjous day")) {
warnx("failed compare test (13)");
failures++;
}
return (failures);
}
int
writetest(const char *mode)
{
FILE *s1;
char string[] = "super test number 3";
char buffer[256];
size_t len, slen;
int failures = 0;
slen = strlen(string) + 1;
s1 = fmemopen(string, slen, mode);
if (s1 == NULL)
return (1);
len = fwrite("short", 1, 5, s1);
if (len != strlen("short")) {
warnx("failed write test [%s] (14)", mode);
failures++;
}
fclose(s1);
s1 = fmemopen(string, slen, "r");
if (s1 == NULL) {
warnx("failed open test [%s] (15)", mode);
failures++;
}
len = fread(buffer, 1, sizeof(buffer) - 1, s1);
if (len == 0 || strncmp(string, buffer, len)) {
warnx("failed compare test [%s] (16)", mode);
failures++;
}
if (strcmp(string, "short")) {
warnx("failed compare test [%s] (17)", mode);
failures++;
}
if (strcmp(string + strlen(string) + 1, "test number 3")) {
warnx("failed compare test [%s] (18)", mode);
failures++;
}
return (failures);
}
int
seektest(void)
{
FILE *s1;
char string[] = "long string for testing seek";
size_t len, slen;
int failures = 0;
slen = strlen(string) + 1;
s1 = fmemopen(string, slen, "r");
if (s1 == NULL)
return (1);
if (fseek(s1, 8, SEEK_SET) != 0) {
warnx("failed to fseek. (19)");
failures++;
}
if (ftell(s1) != 8) {
warnx("failed seek test. (20)");
failures++;
}
/* Try to seek backward */
if (fseek(s1, -1, SEEK_CUR) != 0) {
warnx("failed to fseek. (21)");
failures++;
}
if (ftell(s1) != 7) {
warnx("failed seeking backward. (22)");
failures++;
}
return (failures);
}
int
main(void)
{
int failures = 0;
failures += simpletest();
failures += appendtest("a");
failures += appendtest("a+");
failures += updatetest();
failures += writetest("w");
failures += writetest("w+");
failures += seektest();
return (failures);
}
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