system.h

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#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
 
#include <ctype.h>
 
/* XXX isspace(3) has i18n encoding signednesss issues on Solaris. */
#define _isspaceptr(_chp)       isspace((int)(*(unsigned char *)(_chp)))
 
#ifdef HAVE_MCHECK_H
#include <mcheck.h>
#endif
 
#include <stdlib.h>
#include <string.h>
 
void * xmalloc (size_t size);
 
void * xcalloc (size_t nmemb, size_t size);
 
void * xrealloc (void * ptr, size_t size);
 
char * xstrdup (const char *str);
 
#if !defined(HAVE_STPCPY)
/* Copy SRC to DEST, returning the address of the terminating '\0' in DEST.  */
static inline char * stpcpy (char *dest, const char * src) {
    register char *d = dest;
    register const char *s = src;
 
    do
        *d++ = *s;
    while (*s++ != '\0');
    return d - 1;
}
#endif
 
/* Memory allocation via macro defs to get meaningful locations from mtrace() */
#if defined(HAVE_MCHECK_H) && defined(__GNUC__)
#define vmefail()       (fprintf(stderr, "virtual memory exhausted.\n"), exit(EXIT_FAILURE), NULL)
#define xmalloc(_size)          (malloc(_size) ? : vmefail())
#define xcalloc(_nmemb, _size)  (calloc((_nmemb), (_size)) ? : vmefail())
#define xrealloc(_ptr, _size)   (realloc((_ptr), (_size)) ? : vmefail())
#define xstrdup(_str)   (strcpy((malloc(strlen(_str)+1) ? : vmefail()), (_str)))
#else
#define xmalloc(_size)          malloc(_size)
#define xcalloc(_nmemb, _size)  calloc((_nmemb), (_size))
#define xrealloc(_ptr, _size)   realloc((_ptr), (_size))
#define xstrdup(_str)   strdup(_str)
#endif  /* defined(HAVE_MCHECK_H) && defined(__GNUC__) */
 
#if defined(HAVE_SECURE_GETENV)
#define getenv(_s)      secure_getenv(_s)
#elif defined(HAVE___SECURE_GETENV)
#define getenv(_s)      __secure_getenv(_s)
#endif
 
#if !defined(__GNUC__) && !defined(__attribute__)
#define __attribute__(x) 
#endif
#define UNUSED(x) x __attribute__((__unused__))
 
#include "popt.h"