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Commit | Line | Data |
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3c0ef626 | 1 | dnl $Id$ |
2 | dnl | |
3 | dnl OpenSSH-specific autoconf macros | |
4 | dnl | |
5 | ||
6 | ||
7 | dnl OSSH_CHECK_HEADER_FOR_FIELD(field, header, symbol) | |
8 | dnl Does AC_EGREP_HEADER on 'header' for the string 'field' | |
9 | dnl If found, set 'symbol' to be defined. Cache the result. | |
10 | dnl TODO: This is not foolproof, better to compile and read from there | |
11 | AC_DEFUN(OSSH_CHECK_HEADER_FOR_FIELD, [ | |
12 | # look for field '$1' in header '$2' | |
13 | dnl This strips characters illegal to m4 from the header filename | |
14 | ossh_safe=`echo "$2" | sed 'y%./+-%__p_%'` | |
15 | dnl | |
16 | ossh_varname="ossh_cv_$ossh_safe""_has_"$1 | |
17 | AC_MSG_CHECKING(for $1 field in $2) | |
18 | AC_CACHE_VAL($ossh_varname, [ | |
19 | AC_EGREP_HEADER($1, $2, [ dnl | |
20 | eval "$ossh_varname=yes" dnl | |
21 | ], [ dnl | |
22 | eval "$ossh_varname=no" dnl | |
23 | ]) dnl | |
24 | ]) | |
25 | ossh_result=`eval 'echo $'"$ossh_varname"` | |
26 | if test -n "`echo $ossh_varname`"; then | |
27 | AC_MSG_RESULT($ossh_result) | |
28 | if test "x$ossh_result" = "xyes"; then | |
29 | AC_DEFINE($3) | |
30 | fi | |
31 | else | |
32 | AC_MSG_RESULT(no) | |
33 | fi | |
34 | ]) | |
35 | ||
36 | dnl OSSH_PATH_ENTROPY_PROG(variablename, command): | |
37 | dnl Tidiness function, sets 'undef' if not found, and does the AC_SUBST | |
38 | AC_DEFUN(OSSH_PATH_ENTROPY_PROG, [ | |
39 | AC_PATH_PROG($1, $2) | |
40 | if test -z "[$]$1" ; then | |
41 | $1="undef" | |
42 | fi | |
43 | AC_SUBST($1) | |
44 | ]) | |
45 | ||
46 | dnl Check for socklen_t: historically on BSD it is an int, and in | |
47 | dnl POSIX 1g it is a type of its own, but some platforms use different | |
48 | dnl types for the argument to getsockopt, getpeername, etc. So we | |
49 | dnl have to test to find something that will work. | |
50 | AC_DEFUN([TYPE_SOCKLEN_T], | |
51 | [ | |
52 | AC_CHECK_TYPE([socklen_t], ,[ | |
53 | AC_MSG_CHECKING([for socklen_t equivalent]) | |
54 | AC_CACHE_VAL([curl_cv_socklen_t_equiv], | |
55 | [ | |
56 | # Systems have either "struct sockaddr *" or | |
57 | # "void *" as the second argument to getpeername | |
58 | curl_cv_socklen_t_equiv= | |
59 | for arg2 in "struct sockaddr" void; do | |
60 | for t in int size_t unsigned long "unsigned long"; do | |
61 | AC_TRY_COMPILE([ | |
62 | #include <sys/types.h> | |
63 | #include <sys/socket.h> | |
64 | ||
65 | int getpeername (int, $arg2 *, $t *); | |
66 | ],[ | |
67 | $t len; | |
68 | getpeername(0,0,&len); | |
69 | ],[ | |
70 | curl_cv_socklen_t_equiv="$t" | |
71 | break | |
72 | ]) | |
73 | done | |
74 | done | |
75 | ||
76 | if test "x$curl_cv_socklen_t_equiv" = x; then | |
77 | AC_MSG_ERROR([Cannot find a type to use in place of socklen_t]) | |
78 | fi | |
79 | ]) | |
80 | AC_MSG_RESULT($curl_cv_socklen_t_equiv) | |
81 | AC_DEFINE_UNQUOTED(socklen_t, $curl_cv_socklen_t_equiv, | |
82 | [type to use in place of socklen_t if not defined])], | |
83 | [#include <sys/types.h> | |
84 | #include <sys/socket.h>]) | |
85 | ]) | |
86 |