int git_filebuf_printf(git_filebuf *file, const char *format, ...)
{
va_list arglist;
size_t space_left;
int len, res;
char *tmp_buffer;
ENSURE_BUF_OK(file);
space_left = file->buf_size - file->buf_pos;
do {
va_start(arglist, format);
len = p_vsnprintf((char *)file->buffer + file->buf_pos, space_left, format, arglist);
va_end(arglist);
if (len < 0) {
file->last_error = BUFERR_MEM;
return -1;
}
if ((size_t)len + 1 <= space_left) {
file->buf_pos += len;
return 0;
}
if (flush_buffer(file) < 0)
return -1;
space_left = file->buf_size - file->buf_pos;
} while ((size_t)len + 1 <= space_left);
tmp_buffer = git__malloc(len + 1);
if (!tmp_buffer) {
file->last_error = BUFERR_MEM;
return -1;
}
va_start(arglist, format);
len = p_vsnprintf(tmp_buffer, len + 1, format, arglist);
va_end(arglist);
if (len < 0) {
git__free(tmp_buffer);
file->last_error = BUFERR_MEM;
return -1;
}
res = git_filebuf_write(file, tmp_buffer, len);
git__free(tmp_buffer);
return res;
}
int p_snprintf(char *buffer, size_t count, const char *format, ...)
{
va_list va;
int r;
va_start(va, format);
r = p_vsnprintf(buffer, count, format, va);
va_end(va);
return r;
}