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authorRincewindsHat <12514511+RincewindsHat@users.noreply.github.com>2023-01-31 13:46:01 (GMT)
committerRincewindsHat <12514511+RincewindsHat@users.noreply.github.com>2023-01-31 13:46:01 (GMT)
commite8bd88d1fcded01ccd066572eeaae1b507989cb3 (patch)
treec8e7be6c07c6f635f6e803e6a6ba9e7a95fee7c0 /gl/m4/getdelim.m4
parent2ad962c13473607ca0d974bfaa516a0ed53ec73d (diff)
downloadmonitoring-plugins-e8bd88d1fcded01ccd066572eeaae1b507989cb3.tar.gz
Sync with the latest Gnulib code 668c0b8ffa
Diffstat (limited to 'gl/m4/getdelim.m4')
-rw-r--r--gl/m4/getdelim.m4111
1 files changed, 111 insertions, 0 deletions
diff --git a/gl/m4/getdelim.m4 b/gl/m4/getdelim.m4
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1# getdelim.m4 serial 16
2
3dnl Copyright (C) 2005-2007, 2009-2023 Free Software Foundation, Inc.
4dnl
5dnl This file is free software; the Free Software Foundation
6dnl gives unlimited permission to copy and/or distribute it,
7dnl with or without modifications, as long as this notice is preserved.
8
9AC_PREREQ([2.59])
10
11AC_DEFUN([gl_FUNC_GETDELIM],
12[
13 AC_REQUIRE([gl_STDIO_H_DEFAULTS])
14 AC_REQUIRE([AC_CANONICAL_HOST])
15
16 dnl Persuade glibc <stdio.h> to declare getdelim().
17 AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
18
19 AC_CHECK_DECLS_ONCE([getdelim])
20
21 AC_CHECK_FUNCS_ONCE([getdelim])
22 if test $ac_cv_func_getdelim = yes; then
23 HAVE_GETDELIM=1
24 dnl Found it in some library. Verify that it works.
25 AC_CACHE_CHECK([for working getdelim function],
26 [gl_cv_func_working_getdelim],
27 [case "$host_os" in
28 darwin*)
29 dnl On macOS 10.13, valgrind detected an out-of-bounds read during
30 dnl the GNU sed test suite:
31 dnl Invalid read of size 16
32 dnl at 0x100EE6A05: _platform_memchr$VARIANT$Base (in /usr/lib/system/libsystem_platform.dylib)
33 dnl by 0x100B7B0BD: getdelim (in /usr/lib/system/libsystem_c.dylib)
34 dnl by 0x10000B0BE: ck_getdelim (utils.c:254)
35 gl_cv_func_working_getdelim=no ;;
36 *)
37 echo fooNbarN | tr -d '\012' | tr N '\012' > conftest.data
38 AC_RUN_IFELSE([AC_LANG_SOURCE([[
39# include <stdio.h>
40# include <stdlib.h>
41# include <string.h>
42 int main ()
43 {
44 FILE *in = fopen ("./conftest.data", "r");
45 if (!in)
46 return 1;
47 {
48 /* Test result for a NULL buffer and a zero size.
49 Based on a test program from Karl Heuer. */
50 char *line = NULL;
51 size_t siz = 0;
52 int len = getdelim (&line, &siz, '\n', in);
53 if (!(len == 4 && line && strcmp (line, "foo\n") == 0))
54 { free (line); fclose (in); return 2; }
55 free (line);
56 }
57 {
58 /* Test result for a NULL buffer and a non-zero size.
59 This crashes on FreeBSD 8.0. */
60 char *line = NULL;
61 size_t siz = (size_t)(~0) / 4;
62 if (getdelim (&line, &siz, '\n', in) == -1)
63 { fclose (in); return 3; }
64 free (line);
65 }
66 fclose (in);
67 return 0;
68 }
69 ]])],
70 [gl_cv_func_working_getdelim=yes],
71 [gl_cv_func_working_getdelim=no],
72 [dnl We're cross compiling.
73 dnl Guess it works on glibc2 systems and musl systems.
74 AC_EGREP_CPP([Lucky GNU user],
75 [
76#include <features.h>
77#ifdef __GNU_LIBRARY__
78 #if (__GLIBC__ >= 2) && !defined __UCLIBC__
79 Lucky GNU user
80 #endif
81#endif
82 ],
83 [gl_cv_func_working_getdelim="guessing yes"],
84 [case "$host_os" in
85 *-musl*) gl_cv_func_working_getdelim="guessing yes" ;;
86 *) gl_cv_func_working_getdelim="$gl_cross_guess_normal" ;;
87 esac
88 ])
89 ])
90 ;;
91 esac
92 ])
93 case "$gl_cv_func_working_getdelim" in
94 *yes) ;;
95 *) REPLACE_GETDELIM=1 ;;
96 esac
97 else
98 HAVE_GETDELIM=0
99 fi
100
101 if test $ac_cv_have_decl_getdelim = no; then
102 HAVE_DECL_GETDELIM=0
103 fi
104])
105
106# Prerequisites of lib/getdelim.c.
107AC_DEFUN([gl_PREREQ_GETDELIM],
108[
109 AC_CHECK_FUNCS([flockfile funlockfile])
110 AC_CHECK_DECLS([getc_unlocked])
111])