libasn1common/asn1_buffer.h

#ifndef	ASN1_BUFFER_H
#define	ASN1_BUFFER_H

/*
 * Your typical dynamic character string buffer.
 */
typedef struct {
    const char *buffer;
    size_t length;
    size_t size;
} abuf;

/*
 * Create and destroy the buffer.
 */
abuf *abuf_new(void);
void abuf_free(abuf *);

/*
 * Erase contents of the buffer (without destroying it).
 */
void abuf_clear(abuf *);

/*
 * Add characters to the buffer.
 */
void abuf_str(abuf *, const char *str);
void abuf_buf(abuf *, const abuf *);
void abuf_printf(abuf *, const char *fmt, ...)
    __attribute__((format(printf, 2, 3)));

#endif	/* ASN1_BUFFER_H */