don't modify argv, use a counter - saait - the most boring static page generator
(HTM) git clone git://git.codemadness.org/saait
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---
(DIR) commit d30fbb819df1787d8f69848b1a715c7974e0eb1a
(DIR) parent 06fa7f2aa301e39d5737ce86268b67a5057c83b7
(HTM) Author: Hiltjo Posthuma <hiltjo@codemadness.org>
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(-)
---
(DIR) diff --git a/Makefile b/Makefile
@@ -4,6 +4,8 @@ NAME = saait
VERSION = 0.1
SRC = \
saait.c
+HDR = \
+ arg.h
BIN = \
saait
MAN1 = \
(DIR) 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