Initial import to CVS. Basic functions are working, albeit with a couple of showstopper memory bugs and many missing features. Detaching, reattaching, creating new sessions, listing sessions work acceptably for using with shells. Simple curses programs (top, systat, tetris) and more complicated ones (mutt, emacs) that don't require scrolling regions (ESC[r) mostly work fine (including mutt, emacs). No status bar yet and no key remapping or other customisation.

1 files changed, 243 insertions, 0 deletions

diff --git a/xmalloc.c b/xmalloc.c
new file mode 100644
index 00000000..228e4381
--- /dev/null
+++ b/xmalloc.c
@@ -0,0 +1,243 @@
+/* $Id: xmalloc.c,v 1.1.1.1 2007-07-09 19:03:33 nicm Exp $ */
+
+/*
+ * Copyright (c) 2004 Nicholas Marriott <nicm@users.sourceforge.net>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+
+#include <errno.h>
+#include <libgen.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "tmux.h"
+
+void *
+ensure_for(void *buf, size_t *len, size_t size, size_t adj)
+{
+	if (adj == 0)
+		log_fatalx("ensure_for: zero adj");
+
+	if (SIZE_MAX - size < adj)
+		log_fatalx("ensure_for: size + adj > SIZE_MAX");
+	size += adj;
+
+	if (*len == 0) {
+		*len = BUFSIZ;
+		buf = xmalloc(*len);
+	}
+
+	while (*len <= size) {
+		buf = xrealloc(buf, 2, *len);
+		*len *= 2;
+	}
+
+	return (buf);
+}
+
+void *
+ensure_size(void *buf, size_t *len, size_t nmemb, size_t size)
+{
+	if (nmemb == 0 || size == 0)
+		log_fatalx("ensure_size: zero size");
+	if (SIZE_MAX / nmemb < size)
+		log_fatalx("ensure_size: nmemb * size > SIZE_MAX");
+
+	if (*len == 0) {
+		*len = BUFSIZ;
+		buf = xmalloc(*len);
+	}
+
+	while (*len <= nmemb * size) {
+		buf = xrealloc(buf, 2, *len);
+		*len *= 2;
+	}
+
+	return (buf);
+}
+
+char *
+xstrdup(const char *s)
+{
+	void	*ptr;
+	size_t	 len;
+
+	len = strlen(s) + 1;
+	ptr = xmalloc(len);
+
+        return (strncpy(ptr, s, len));
+}
+
+void *
+xcalloc(size_t nmemb, size_t size)
+{
+        void	*ptr;
+
+        if (size == 0 || nmemb == 0)
+                log_fatalx("xcalloc: zero size");
+        if (SIZE_MAX / nmemb < size)
+                log_fatalx("xcalloc: nmemb * size > SIZE_MAX");
+        if ((ptr = calloc(nmemb, size)) == NULL)
+		log_fatal("xcalloc");
+
+        return (ptr);
+}
+
+void *
+xmalloc(size_t size)
+{
+        void	*ptr;
+
+        if (size == 0)
+		log_fatalx("xmalloc: zero size");
+        if ((ptr = malloc(size)) == NULL)
+		log_fatal("xmalloc");
+
+        return (ptr);
+}
+
+void *
+xrealloc(void *oldptr, size_t nmemb, size_t size)
+{
+	size_t	 newsize = nmemb * size;
+	void	*newptr;
+
+	if (newsize == 0)
+                log_fatalx("xrealloc: zero size");
+        if (SIZE_MAX / nmemb < size)
+                log_fatal("xrealloc: nmemb * size > SIZE_MAX");
+        if ((newptr = realloc(oldptr, newsize)) == NULL)
+		log_fatal("xrealloc");
+
+        return (newptr);
+}
+
+void
+xfree(void *ptr)
+{
+	if (ptr == NULL)
+		log_fatalx("xfree: null pointer");
+	free(ptr);
+}
+
+int printflike2
+xasprintf(char **ret, const char *fmt, ...)
+{
+        va_list ap;
+        int	i;
+
+        va_start(ap, fmt);
+        i = xvasprintf(ret, fmt, ap);
+        va_end(ap);
+
+	return (i);
+}
+
+int
+xvasprintf(char **ret, const char *fmt, va_list ap)
+{
+	int	i;
+
+	i = vasprintf(ret, fmt, ap);
+
+        if (i < 0 || *ret == NULL)
+                log_fatal("xvasprintf");
+
+        return (i);
+}
+
+int printflike3
+xsnprintf(char *buf, size_t len, const char *fmt, ...)
+{
+        va_list ap;
+        int	i;
+
+        va_start(ap, fmt);
+        i = xvsnprintf(buf, len, fmt, ap);
+        va_end(ap);
+
+	return (i);
+}
+
+int
+xvsnprintf(char *buf, size_t len, const char *fmt, va_list ap)
+{
+	int	i;
+
+	if (len > INT_MAX) {
+		errno = EINVAL;
+		log_fatal("xvsnprintf");
+	}
+
+	i = vsnprintf(buf, len, fmt, ap);
+
+        if (i < 0)
+                log_fatal("xvsnprintf");
+
+        return (i);
+}
+
+/*
+ * Print a path. Same as xsnprintf, but return ENAMETOOLONG on truncation.
+ */
+int printflike3
+printpath(char *buf, size_t len, const char *fmt, ...)
+{
+	va_list	ap;
+	int	n;
+
+	if (len > INT_MAX) {
+		errno = ENAMETOOLONG;
+		return (1);
+	}
+
+	va_start(ap, fmt);
+	n = xvsnprintf(buf, len, fmt, ap);
+	va_end(ap);
+
+	if ((size_t) n > len) {
+		errno = ENAMETOOLONG;
+		return (1);
+	}
+
+	return (0);
+}
+
+/*
+ * Some system modify the path in place. This function and xbasename below
+ * avoid that by using a temporary buffer.
+ */
+char *
+xdirname(const char *src)
+{
+	char	dst[MAXPATHLEN];
+
+	strlcpy(dst, src, sizeof dst);
+	return (dirname(dst));
+}
+
+char *
+xbasename(const char *src)
+{
+	char	dst[MAXPATHLEN];
+
+	strlcpy(dst, src, sizeof dst);
+	return (basename(dst));
+}