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#include <shared/mem.h>
#include <shared/printf.h>
#include <stdio.h>
#include <stdlib.h>
int asprintf(char **restrict sp, const char *restrict fmt, ...) {
int ret;
va_list argp;
va_start(argp, fmt);
ret = vasprintf(sp, fmt, argp);
va_end(argp);
return ret;
}
int vasprintf(char **restrict sp, const char *restrict fmt, va_list ap) {
va_list ap2;
va_copy(ap2, ap);
int ret = vsnprintf(NULL, 0, fmt, ap2);
va_end(ap2);
if (ret < 0) return ret;
*sp = malloc(ret+1);
if (*sp == NULL) return -1;
return vsnprintf(*sp, ret+1, fmt, ap);
}
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