/* See LICENSE file for copyright and license details. */ #ifndef UTIL_H#define UTIL_H #include <stddef.h> /* Memory allocation with error handling */void *xmalloc(size_t size);void *xrealloc(void *ptr, size_t size);char *xstrdup(const char *s); /* Base64 encoding */char *base64_encode(const unsigned char *data, size_t input_len,                    size_t *output_len); /* String utilities */int str_starts_with(const char *str, const char *prefix);int str_ends_with(const char *str, const char *suffix);char *str_tolower(char *str);char *str_trim(char *str); /* URL utilities */char *url_resolve(const char *base, const char *relative);char *url_get_domain(const char *url);int url_same_domain(const char *url1, const char *url2); /* Return pointer into url at the start of the path component (after domain). * Handles http:// https:// // and bare paths. Returns "/" if no path. * Never returns NULL. The returned pointer is inside the original string. */const char *url_path(const char *url); /* Compute a relative path from 'from' (current file path) to 'to' (target file path). * Both are paths relative to site root, e.g. "dir/page.htm" and "other/file.pdf". * Returns e.g. "../other/file.pdf" or "file.pdf" as needed for <a href> rewriting. * Caller must free the result. */char *make_relative_path(const char *from, const char *to); /* File utilities */char *get_mime_type(const char *url);char *sanitize_filename(const char *url); /* Time utilities */char *get_iso_date(void); /* Error handling */void die(const char *fmt, ...);void warn(const char *fmt, ...); #endif /* UTIL_H */