Files
RedBear-OS/recipes/core/relibc/tests/stdlib/env.c
T

46 lines
1015 B
C

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "test_helpers.h"
int main(void) {
//puts(getenv("SHELL"));
//puts(getenv("CC"));
char* owned = malloc(26); // "TEST=Updates accordingly." + NUL
strcpy(owned, "TEST=It's working!!");
putenv(owned);
puts(getenv("TEST"));
strcpy(owned, "TEST=Updates accordingly.");
puts(getenv("TEST"));
// Allocation is reused
setenv("TEST", "in place", 1);
puts(getenv("TEST"));
puts(owned);
// Allocation is not reused
setenv("TEST", "Value overwritten and not in place because it's really long", 1);
puts(getenv("TEST"));
puts(owned);
// Value is not overwritten
setenv("TEST", "Value not overwritten", 0);
puts(getenv("TEST"));
unsetenv("TEST");
char* env = getenv("TEST");
if (env) {
puts("This should be null, but isn't");
puts(env);
exit(EXIT_FAILURE);
} else {
puts("Value deleted successfully!");
}
free(owned);
}