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	don't modify argv, use a counter - saait - the most boring static page generator
	git clone git://git.codemadness.org/saait
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	---
	commit d30fbb819df1787d8f69848b1a715c7974e0eb1a
	parent 06fa7f2aa301e39d5737ce86268b67a5057c83b7
	Author: Hiltjo Posthuma <[email protected]>
	Date: Mon, 4 Dec 2017 23:14:24 +0100

	don't modify argv, use a counter

	on some platforms (OpenBSD) this changes the exposed argv in tools using the
	kvm_* interface, such as ps and pgrep.

	add arg.h to HDR in Makefile.

	Diffstat:
	M Makefile \| 2 ++
	M arg.h \| 39 +++++++----------------------…

	2 files changed, 10 insertions(+), 31 deletions(-)
	---
	diff --git a/Makefile b/Makefile
	@@ -4,6 +4,8 @@ NAME = saait
	VERSION = 0.1
	SRC = \
	saait.c
	+HDR = \
	+ arg.h
	BIN = \
	saait
	MAN1 = \
	diff --git a/arg.h b/arg.h
	@@ -21,45 +21,22 @@ extern char *argv0;
	argc--;\
	break;\
	}\
	- for (brk_ = 0, argv[0]++, argv_ = argv;\
	- argv[0][0] && !brk_;\
	- argv[0]++) {\
	+ int i_;\
	+ for (i_ = 1, brk_ = 0, argv_ = argv;\
	+ argv[0][i_] && !brk_;\
	+ i_++) {\
	if (argv_ != argv)\
	break;\
	- argc_ = argv[0][0];\
	+ argc_ = argv[0][i_];\
	switch (argc_)

	-/* Handles obsolete -NUM syntax */
	-#define ARGNUM case '0':\
	- case '1':\
	- case '2':\
	- case '3':\
	- case '4':\
	- case '5':\
	- case '6':\
	- case '7':\
	- case '8':\
	- case '9'
	-
	#define ARGEND }\
	}

	-#define ARGC() argc_
	-
	-#define ARGNUMF() (brk_ = 1, estrtonum(argv[0], 0, INT_MAX))
	-
	-#define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\
	+#define EARGF(x) ((argv[0][i_+1] == '\0' && argv[1] == NULL)?\
	((x), abort(), (char *)0) :\
	- (brk_ = 1, (argv[0][1] != '\0')?\
	- (&argv[0][1]) :\
	+ (brk_ = 1, (argv[0][i_+1] != '\0')?\
	+ (&argv[0][i_+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])))
	-
	-#define LNGARG() &argv[0][0]
	-
	#endif