whoops add arg.h - sdhcp - simple dhcp client
(HTM) git clone git://git.codemadness.org/sdhcp
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---
(DIR) commit b97fe80b0c80d16802031d321f8aeb4f642ba37a
(DIR) parent ba2f7b64cceb89657c54733fbfdfb0b127427da1
(HTM) Author: Hiltjo Posthuma <hiltjo@codemadness.org>
Date: Fri, 25 Apr 2014 22:02:57 +0200
whoops add arg.h
Signed-off-by: Hiltjo Posthuma <hiltjo@codemadness.org>
Diffstat:
A arg.h | 63 +++++++++++++++++++++++++++++++
1 file changed, 63 insertions(+), 0 deletions(-)
---
(DIR) diff --git a/arg.h b/arg.h
@@ -0,0 +1,63 @@
+/*
+ * Copy me if you can.
+ * by 20h
+ */
+
+#ifndef ARG_H__
+#define ARG_H__
+
+extern char *argv0;
+
+/* use main(int argc, char *argv[]) */
+#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\
+ argv[0] && argv[0][1]\
+ && argv[0][0] == '-';\
+ argc--, argv++) {\
+ char argc_;\
+ char **argv_;\
+ int brk_;\
+ if (argv[0][1] == '-' && argv[0][2] == '\0') {\
+ argv++;\
+ argc--;\
+ break;\
+ }\
+ for (brk_ = 0, argv[0]++, argv_ = argv;\
+ argv[0][0] && !brk_;\
+ argv[0]++) {\
+ if (argv_ != argv)\
+ break;\
+ argc_ = argv[0][0];\
+ 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(base) (brk_ = 1, estrtol(argv[0], (base)))
+
+#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