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#include <camellia/syscalls.h>
#include <shared/printf.h>
#include <stdio.h>
#include <string.h>
static void backend_file(void *arg, const char *buf, size_t len) {
fwrite(buf, 1, len, (FILE *)arg);
}
int printf(const char *fmt, ...) {
int ret = 0;
va_list argp;
va_start(argp, fmt);
ret = __printf_internal(fmt, argp, backend_file, (void*)stdout);
va_end(argp);
return ret;
}
static void backend_buf(void *arg, const char *buf, size_t len) {
char **ptrs = arg;
size_t space = ptrs[1] - ptrs[0];
if (len > space) len = space;
memcpy(ptrs[0], buf, len);
ptrs[0] += len;
}
int snprintf(char *str, size_t len, const char *fmt, ...) {
int ret = 0;
char *ptrs[2] = {str, str + len};
va_list argp;
va_start(argp, fmt);
ret = __printf_internal(fmt, argp, backend_buf, &ptrs);
va_end(argp);
if (ptrs[0] < ptrs[1]) *ptrs[0] = '\0';
return ret;
}
int _klogf(const char *fmt, ...) {
// idiotic. however, this hack won't matter anyways
char buf[256];
int ret = 0;
char *ptrs[2] = {buf, buf + sizeof buf};
va_list argp;
va_start(argp, fmt);
ret = __printf_internal(fmt, argp, backend_buf, &ptrs);
va_end(argp);
if (ptrs[0] < ptrs[1]) *ptrs[0] = '\0';
_syscall_debug_klog(buf, ret);
return ret;
}
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