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#include <ccan/asprintf/asprintf.h>
/* Include the C files directly. */
#include <stdarg.h>
/* Override vasprintf for testing. */
#if HAVE_ASPRINTF
#define vasprintf my_vasprintf
static int my_vasprintf(char **strp, const char *fmt, va_list ap);
#else
#include <stdio.h>
#define vsnprintf my_vsnprintf
static int my_vsnprintf(char *str, size_t size, const char *format, va_list ap);
#endif
#include <ccan/asprintf/asprintf.c>
#include <ccan/tap/tap.h>
#include <string.h>
#include <stdlib.h>
#include <stdbool.h>
static bool fail;
#if HAVE_ASPRINTF
#undef vasprintf
static int my_vasprintf(char **strp, const char *fmt, va_list ap)
{
if (fail) {
/* Set strp to crap. */
*strp = (char *)(long)1;
return -1;
}
return vasprintf(strp, fmt, ap);
}
#else
#undef vsnprintf
static int my_vsnprintf(char *str, size_t size, const char *format, va_list ap)
{
if (fail) {
return -1;
}
return vsnprintf(str, size, format, ap);
}
#endif
int main(void)
{
char *p, nul = '\0';
int ret;
/* This is how many tests you plan to run */
plan_tests(8);
fail = false;
p = afmt("Test %u%cafter-nul", 1, nul);
ok1(p);
ok1(strlen(p) == strlen("Test 1"));
ok1(memcmp(p, "Test 1\0after-nul\0", 17) == 0);
free(p);
ret = asprintf(&p, "Test %u%cafter-nul", 1, nul);
ok1(ret == 16);
ok1(p);
ok1(strlen(p) == strlen("Test 1"));
ok1(memcmp(p, "Test 1\0after-nul\0", 17) == 0);
free(p);
fail = true;
p = afmt("Test %u%cafter-nul", 1, nul);
ok1(p == NULL);
/* This exits depending on whether all tests passed */
return exit_status();
}
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