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1 | m4_dnl hsyscalls.i4 |
2 | m4_dnl (part of complex test harness, not of the library) |
3 | m4_dnl - list of syscalls to override/log and their args |
4 | |
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5 | m4_dnl This file is part of adns, which is Copyright (C) 1997-1999 Ian Jackson |
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6 | m4_dnl |
7 | m4_dnl This program is free software; you can redistribute it and/or modify |
8 | m4_dnl it under the terms of the GNU General Public License as published by |
9 | m4_dnl the Free Software Foundation; either version 2, or (at your option) |
10 | m4_dnl any later version. |
11 | m4_dnl |
12 | m4_dnl This program is distributed in the hope that it will be useful, |
13 | m4_dnl but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | m4_dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | m4_dnl GNU General Public License for more details. |
16 | m4_dnl |
17 | m4_dnl You should have received a copy of the GNU General Public License |
18 | m4_dnl along with this program; if not, write to the Free Software Foundation, |
19 | m4_dnl Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
20 | |
21 | m4_dnl each system call has |
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22 | m4_dnl hm_syscall(<name>,<returnvalue>,<args>) |
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23 | m4_dnl <returnvalue> is one of |
24 | m4_dnl hm_rv_must must succeed and return 0 |
25 | m4_dnl hm_rv_any any nonnegative return allowed, -1 means see errno |
26 | m4_dnl hm_rv_fd file descriptor is returned, -1 means see errno |
27 | m4_dnl hm_rv_succfail returns 0 (ok) or -1 (see errno) |
28 | m4_dnl hm_rv_len(<max>) returns length read/written, must be <=max, -1 => errno |
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29 | m4_dnl hm_rv_fcntl syscall is fcntl, do special processing |
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30 | m4_dnl <args> is list of macros for arguments, each followed by hm_na |
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31 | m4_dnl hm_arg_nullptr(<type>,<arg>) pointer of type type, must be null |
32 | m4_dnl hm_arg_int(<arg>) signed integer |
33 | m4_dnl hm_arg_fdset_io(<arg>,<max>) fd_set, max bit set is in max |
34 | m4_dnl hm_arg_timeval_in_rel_null(<t>) struct timeval*, pass in, relative, may be null |
35 | m4_dnl hm_arg_must(<type>,<arg>,<val>) must have correct value, or abort test |
36 | m4_dnl hm_arg_socktype(<arg>) SOCK_STREAM or SOCK_DGRAM (an int) |
37 | m4_dnl hm_arg_ign(<type>,<arg>) input parameter ignored |
38 | m4_dnl hm_arg_fd(<arg>) fd |
39 | m4_dnl hm_arg_fcntl_cmd_arg(<ca>,<aa>) syscall is fcntl, do special processing |
40 | m4_dnl hm_arg_addr_in(<arg>,<len>) struct sockaddr*, length given by <len> (an int) |
41 | m4_dnl hm_arg_bytes_in(<objtype>,<objarg>,<lentype>,<lenarg>) |
42 | m4_dnl some data from caller; <objarg> is of type pointer to const <objtype> |
43 | m4_dnl and points to <lenarg> bytes (<lenarg> is of type <lentype>) |
44 | m4_dnl hm_arg_bytes_out(<objtype>,<objarg>,<lentype>,<buflenarg>) |
45 | m4_dnl buffer for data from syscall; <objarg> is of type pointer to const <objtype> |
46 | m4_dnl and points to at least <lenarg> bytes (<lenarg> is of type <lentype>) |
47 | m4_dnl return value from syscall is supposed to be returned length |
48 | m4_dnl hm_arg_addr_out(<arg>,<lenptr>) struct sockaddr*, length io at <lenptr> (an int*) |
49 | |
50 | hm_syscall( |
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51 | select, `hm_rv_any', ` |
52 | hm_arg_int(max) hm_na |
53 | hm_arg_fdset_io(rfds,max) hm_na |
54 | hm_arg_fdset_io(wfds,max) hm_na |
55 | hm_arg_fdset_io(efds,max) hm_na |
56 | hm_arg_timeval_in_rel_null(to) hm_na |
57 | ') |
58 | |
59 | hm_syscall( |
60 | socket, `hm_rv_fd', ` |
61 | hm_arg_must(int,domain,AF_INET) hm_na |
62 | hm_arg_socktype(type) hm_na |
63 | hm_arg_ign(int,protocol) hm_na |
64 | ') |
65 | |
66 | hm_syscall( |
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67 | fcntl, `hm_rv_fcntl', ` |
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68 | hm_arg_fd(fd) hm_na |
69 | hm_arg_fcntl_cmd_arg(cmd,arg) hm_na |
70 | ') |
71 | |
72 | hm_syscall( |
73 | connect, `hm_rv_succfail', ` |
74 | hm_arg_fd(fd) hm_na |
75 | hm_arg_addr_in(addr,addrlen) hm_na |
76 | ') |
77 | |
78 | hm_syscall( |
79 | close, `hm_rv_succfail', ` |
80 | hm_arg_fd(fd) hm_na |
81 | ') |
82 | |
83 | hm_syscall( |
84 | sendto, `hm_rv_any', ` |
85 | hm_arg_fd(fd) hm_na |
86 | hm_arg_bytes_in(void,msg,int,msglen) hm_na |
87 | hm_arg_must(unsigned int,flags,0) hm_na |
88 | hm_arg_addr_in(addr,addrlen) hm_na |
89 | ') |
90 | |
91 | hm_syscall( |
92 | recvfrom, `hm_rv_len(buflen)', ` |
93 | hm_arg_fd(fd) hm_na |
94 | hm_arg_bytes_out(void,buf,int,buflen) hm_na |
95 | hm_arg_must(unsigned int,flags,0) hm_na |
96 | hm_arg_addr_out(addr,addrlen) hm_na |
97 | ') |
98 | |
99 | hm_syscall( |
100 | read, `hm_rv_len(buflen)', ` |
101 | hm_arg_fd(fd) hm_na |
102 | hm_arg_bytes_out(void,buf,size_t,buflen) hm_na |
103 | ') |
104 | |
105 | hm_syscall( |
106 | write, `hm_rv_any', ` |
107 | hm_arg_fd(fd) hm_na |
108 | hm_arg_bytes_in(void,buf,size_t,len) hm_na |
109 | ') |