static ssize_t linein()

in src/couch_quickjs/c_src/couchjs.c [204:248]

• 43 lines of code
• 13 McCabe index (conditional complexity)

static ssize_t linein(char** line, size_t *linemax) {
#ifdef _WIN32
    char *ptr, *eptr;

    if (line == NULL || stdin == NULL || linemax == NULL) {
      return -1;
    }
    if (*line == NULL || *linemax <= 1) {
      return -1;
    }

    for (ptr = *line, eptr = *line + *linemax;;) {
      int c = fgetc(stdin);
      if (c == -1) {
        if (feof(stdin)) {
          ssize_t diff = (ssize_t)(ptr - *line);
          if (diff != 0) {
            *ptr = '\0';
            return diff;
          }
        }
        return -1;
      }
      *ptr++ = c;
      if (c == '\n') {
        *ptr = '\0';
        return ptr - *line;
      }
      if (ptr + 1 > eptr) {
        char *nline;
        size_t nlinemax = *linemax * 2;
        ssize_t d = ptr - *line;
        if ((nline = realloc(*line, nlinemax)) == NULL) {
          return -1;
        }
        *line = nline;
        *linemax = nlinemax;
        eptr = nline + nlinemax;
        ptr = nline + d;
      }
    }
#else
    return getline(line, linemax, stdin);
#endif
}