lib/util.c


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#include "log.h"
#include "util.h"

#include <fcntl.h>
#include <sys/stat.h>
#include <errno.h>
#include <string.h>

/* will clobber path */
int vl_mkdir_parents(int fd, char *path, mode_t mode)
{
  int last = 0;

  char *ch = path;
  do {
    if (*ch == '/' || (*ch == '\0' && (last = 1))) {
      /* last is set to 1 iff *ch == '\0' */
      *ch = '\0';

      if (mkdirat(fd, path, mode) < 0 && errno != EEXIST) {
        vl_debug("Failed to create directory %s: %s", path, strerror(errno));
        return -1;
      }

      if (!last) *ch = '/';
    }
  } while (*(ch++));

  return 0;
}