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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.
This commit is contained in:
Hiltjo Posthuma 2018-03-20 21:22:27 +01:00
parent 6ac8c8aa50
commit a5a928bfc1
1 changed files with 12 additions and 10 deletions
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22
arg.h
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@ -21,28 +21,30 @@ extern char *argv0;
argc--;\ argc--;\
break;\ break;\
}\ }\
for (brk_ = 0, argv[0]++, argv_ = argv;\ int i_;\
argv[0][0] && !brk_;\ for (i_ = 1, brk_ = 0, argv_ = argv;\
argv[0]++) {\ argv[0][i_] && !brk_;\
i_++) {\
if (argv_ != argv)\ if (argv_ != argv)\
break;\ break;\
argc_ = argv[0][0];\ argc_ = argv[0][i_];\
switch (argc_) switch (argc_)
#define ARGEND }\ #define ARGEND }\
} }
#define ARGC() argc_ #define ARGC() argc_
#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) :\ ((x), abort(), (char *)0) :\
(brk_ = 1, (argv[0][1] != '\0')?\ (brk_ = 1, (argv[0][i_+1] != '\0')?\
(&argv[0][1]) :\ (&argv[0][i_+1]) :\
(argc--, argv++, argv[0]))) (argc--, argv++, argv[0])))
#define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\ #define ARGF() ((argv[0][i_+1] == '\0' && argv[1] == NULL)?\
(char *)0 :\ (char *)0 :\
(brk_ = 1, (argv[0][1] != '\0')?\ (brk_ = 1, (argv[0][i_+1] != '\0')?\
(&argv[0][1]) :\ (&argv[0][i_+1]) :\
(argc--, argv++, argv[0]))) (argc--, argv++, argv[0])))
#endif #endif