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	tImport the arg.h from st which fixed the oob bug. - surf - customized build of…
	git clone git://src.adamsgaard.dk/surf
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	---
	commit 581075796aa380f32a0313c4c64a608e55f8b374
	parent 934705c420a25054b9be55a5321e97d6d56579e2
	Author: Christoph Lohmann <[email protected]>
	Date: Mon, 22 Feb 2016 06:47:46 +0100

	Import the arg.h from st which fixed the oob bug.

	Diffstat:
	M arg.h \| 47 ++++++++++++++++++-----------…

	1 file changed, 27 insertions(+), 20 deletions(-)
	---
	diff --git a/arg.h b/arg.h
	t@@ -3,39 +3,46 @@
	* by 20h
	*/

	-#ifndef __ARG_H__
	-#define __ARG_H__
	+#ifndef ARG_H__
	+#define ARG_H__

	extern char *argv0;

	-#define USED(x) ((void)(x))
	-
	+/* use main(int argc, char argv[]) /
	#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\
	- argv[0] && argv[0][1]\
	- && argv[0][0] == '-';\
	+ argv[0] && argv[0][0] == '-'\
	+ && argv[0][1];\
	argc--, argv++) {\
	- char _argc;\
	- char **_argv;\
	+ char argc_;\
	+ char **argv_;\
	+ int brk_;\
	if (argv[0][1] == '-' && argv[0][2] == '\0') {\
	argv++;\
	argc--;\
	break;\
	}\
	- for (argv[0]++, _argv = argv; argv[0][0];\
	+ for (brk_ = 0, argv[0]++, argv_ = argv;\
	+ argv[0][0] && !brk_;\
	argv[0]++) {\
	- if (_argv != argv)\
	+ if (argv_ != argv)\
	break;\
	- _argc = argv[0][0];\
	- switch (_argc)
	-
	+ argc_ = argv[0][0];\
	+ switch (argc_)
	#define ARGEND }\
	- USED(_argc);\
	- }\
	- USED(argv);\
	- USED(argc);
	+ }

	-#define EARGF(x) ((argv[1] == NULL)? ((x), abort(), (char *)0) :\
	- (argc--, argv++, argv[0]))
	+#define ARGC() argc_

	-#endif
	+#define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\
	+ ((x), abort(), (char *)0) :\
	+ (brk_ = 1, (argv[0][1] != '\0')?\
	+ (&argv[0][1]) :\
	+ (argc--, argv++, argv[0])))

	+#define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\
	+ (char *)0 :\
	+ (brk_ = 1, (argv[0][1] != '\0')?\
	+ (&argv[0][1]) :\
	+ (argc--, argv++, argv[0])))
	+
	+#endif