mirror of
https://github.com/sheumann/hush.git
synced 2024-07-06 19:28:59 +00:00
552b56dfd1
anyway. This is at least less ugly than what was there before, and fixes building all sources at once.
194 lines
3.1 KiB
C
194 lines
3.1 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Utility routines.
|
|
*
|
|
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
|
|
*
|
|
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include "busybox.h"
|
|
|
|
#ifndef DMALLOC
|
|
#ifdef L_xmalloc
|
|
void *xmalloc(size_t size)
|
|
{
|
|
void *ptr = malloc(size);
|
|
if (ptr == NULL && size != 0)
|
|
bb_error_msg_and_die(bb_msg_memory_exhausted);
|
|
return ptr;
|
|
}
|
|
#endif
|
|
|
|
#ifdef L_xrealloc
|
|
void *xrealloc(void *ptr, size_t size)
|
|
{
|
|
ptr = realloc(ptr, size);
|
|
if (ptr == NULL && size != 0)
|
|
bb_error_msg_and_die(bb_msg_memory_exhausted);
|
|
return ptr;
|
|
}
|
|
#endif
|
|
|
|
#ifdef L_xcalloc
|
|
void *xcalloc(size_t nmemb, size_t size)
|
|
{
|
|
void *ptr = calloc(nmemb, size);
|
|
if (ptr == NULL && nmemb != 0 && size != 0)
|
|
bb_error_msg_and_die(bb_msg_memory_exhausted);
|
|
return ptr;
|
|
}
|
|
#endif
|
|
#endif /* DMALLOC */
|
|
|
|
#ifdef L_xstrdup
|
|
char * bb_xstrdup (const char *s)
|
|
{
|
|
char *t;
|
|
|
|
if (s == NULL)
|
|
return NULL;
|
|
|
|
t = strdup (s);
|
|
|
|
if (t == NULL)
|
|
bb_error_msg_and_die(bb_msg_memory_exhausted);
|
|
|
|
return t;
|
|
}
|
|
#endif
|
|
|
|
#ifdef L_xstrndup
|
|
char * bb_xstrndup (const char *s, int n)
|
|
{
|
|
char *t;
|
|
|
|
if (s == NULL)
|
|
bb_error_msg_and_die("bb_xstrndup bug");
|
|
|
|
t = xmalloc(++n);
|
|
|
|
return safe_strncpy(t,s,n);
|
|
}
|
|
#endif
|
|
|
|
#ifdef L_xfopen
|
|
FILE *bb_xfopen(const char *path, const char *mode)
|
|
{
|
|
FILE *fp;
|
|
if ((fp = fopen(path, mode)) == NULL)
|
|
bb_perror_msg_and_die("%s", path);
|
|
return fp;
|
|
}
|
|
#endif
|
|
|
|
#ifdef L_xopen
|
|
int bb_xopen(const char *pathname, int flags)
|
|
{
|
|
return bb_xopen3(pathname, flags, 0777);
|
|
}
|
|
#endif
|
|
|
|
#ifdef L_xopen3
|
|
int bb_xopen3(const char *pathname, int flags, int mode)
|
|
{
|
|
int ret;
|
|
|
|
ret = open(pathname, flags, mode);
|
|
if (ret < 0) {
|
|
bb_perror_msg_and_die("%s", pathname);
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
#ifdef L_xread
|
|
ssize_t bb_xread(int fd, void *buf, size_t count)
|
|
{
|
|
ssize_t size;
|
|
|
|
size = read(fd, buf, count);
|
|
if (size < 0) {
|
|
bb_perror_msg_and_die(bb_msg_read_error);
|
|
}
|
|
return(size);
|
|
}
|
|
#endif
|
|
|
|
#ifdef L_xread_all
|
|
void bb_xread_all(int fd, void *buf, size_t count)
|
|
{
|
|
ssize_t size;
|
|
|
|
while (count) {
|
|
if ((size = bb_xread(fd, buf, count)) == 0) { /* EOF */
|
|
bb_error_msg_and_die("Short read");
|
|
}
|
|
count -= size;
|
|
buf = ((char *) buf) + size;
|
|
}
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
#ifdef L_xread_char
|
|
unsigned char bb_xread_char(int fd)
|
|
{
|
|
char tmp;
|
|
|
|
bb_xread_all(fd, &tmp, 1);
|
|
|
|
return(tmp);
|
|
}
|
|
#endif
|
|
|
|
#ifdef L_xferror
|
|
void bb_xferror(FILE *fp, const char *fn)
|
|
{
|
|
if (ferror(fp)) {
|
|
bb_error_msg_and_die("%s", fn);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef L_xferror_stdout
|
|
void bb_xferror_stdout(void)
|
|
{
|
|
bb_xferror(stdout, bb_msg_standard_output);
|
|
}
|
|
#endif
|
|
|
|
#ifdef L_xfflush_stdout
|
|
void bb_xfflush_stdout(void)
|
|
{
|
|
if (fflush(stdout)) {
|
|
bb_perror_msg_and_die(bb_msg_standard_output);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// GCC forces inlining of strlen everywhere, which is generally a byte
|
|
// larger than calling a function, and it's called a lot so it adds up.
|
|
#ifdef L_strlen
|
|
size_t bb_strlen(const char *string)
|
|
{
|
|
return(__builtin_strlen(string));
|
|
}
|
|
#endif
|
|
|
|
/* END CODE */
|
|
/*
|
|
Local Variables:
|
|
c-file-style: "linux"
|
|
c-basic-offset: 4
|
|
tab-width: 4
|
|
End:
|
|
*/
|