1 files changed, 197 insertions, 0 deletions
diff --git a/busybox/libbb/xfuncs.c b/busybox/libbb/xfuncs.c
new file mode 100644
index 0000000..01b2f87
--- /dev/null
+++ b/busybox/libbb/xfuncs.c
@@ -0,0 +1,197 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include "libbb.h"
+
+
+#ifndef DMALLOC
+#ifdef L_xmalloc
+extern 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
+extern 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
+extern 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
+extern 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
+extern 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
+extern int bb_xopen(const char *pathname, int flags)
+{
+	int ret;
+
+	ret = open(pathname, flags, 0777);
+	if (ret == -1) {
+		bb_perror_msg_and_die("%s", pathname);
+	}
+	return ret;
+}
+#endif
+
+#ifdef L_xread
+extern ssize_t bb_xread(int fd, void *buf, size_t count)
+{
+	ssize_t size;
+
+	size = read(fd, buf, count);
+	if (size == -1) {
+		bb_perror_msg_and_die("Read error");
+	}
+	return(size);
+}
+#endif
+
+#ifdef L_xread_all
+extern 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
+extern unsigned char bb_xread_char(int fd)
+{
+	char tmp;
+
+	bb_xread_all(fd, &tmp, 1);
+
+	return(tmp);
+}
+#endif
+
+#ifdef L_xferror
+extern void bb_xferror(FILE *fp, const char *fn)
+{
+	if (ferror(fp)) {
+		bb_error_msg_and_die("%s", fn);
+	}
+}
+#endif
+
+#ifdef L_xferror_stdout
+extern void bb_xferror_stdout(void)
+{
+	bb_xferror(stdout, bb_msg_standard_output);
+}
+#endif
+
+#ifdef L_xfflush_stdout
+extern void bb_xfflush_stdout(void)
+{
+	if (fflush(stdout)) {
+		bb_perror_msg_and_die(bb_msg_standard_output);
+	}
+}
+#endif
+
+#ifdef L_strlen
+/* Stupid gcc always includes its own builtin strlen()... */
+#undef strlen
+size_t bb_strlen(const char *string)
+{
+	    return(strlen(string));
+}
+#endif
+
+/* END CODE */
+/*
+Local Variables:
+c-file-style: "linux"
+c-basic-offset: 4
+tab-width: 4
+End:
+*/