/* See LICENSE file for copyright and license details. */ #ifndef FETCH_H#define FETCH_H #include <stddef.h> /* Retry settings */#define FETCH_MAX_RETRIES  5   /* increased for old/slow archival targets */#define FETCH_RETRY_BASE   2   /* base seconds for exponential backoff */ /* Response structure */typedef struct {	char *data;	size_t size;	char *content_type;	long status_code;	char *final_url;} Response; /* Initialize/cleanup curl globally */void fetch_init(void);void fetch_cleanup(void); /* Fetch a URL with automatic retry on transient errors */Response *fetch_url(const char *url); /* Free a response */void response_free(Response *resp); #endif /* FETCH_H */