wip, thread support and timer

[ginge.git] / common / cmn.c

#ifdef LOADER
#include "../loader/realfuncs.h"
#endif
#include <stdio.h>
#include <string.h>
#include <unistd.h>

#include "cmn.h"

int make_local_path(char *buf, size_t size, const char *file)
{
  ssize_t ret;
  char *p;

  ret = readlink("/proc/self/exe", buf, size - 1);
  if (ret < 0) {
    perror("readlink");
    goto err;
  }
  buf[ret] = 0;

  p = strrchr(buf, '/');
  if (p == NULL)
    goto err;
  p++;

  if (strstr(p, ".so")) {
    p = getenv("GINGE_ROOT");
    if (p == NULL)
      goto err;
    strcpy(buf, p);
    p = buf + strlen(buf);
  }

  snprintf(p, size - (p - buf), "%s", file);

  return 0;

err:
  fprintf(stderr, "ginge: can't determine root, buf: \"%s\"\n", buf);
  return -1;
}