Compare commits
No commits in common. "c8" and "c9" have entirely different histories.
@ -1,54 +0,0 @@
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--- a/telnet/commands.c.old
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+++ b/telnet/commands.c
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@@ -2181,12 +2181,13 @@ cmdrc(char *m1, char *m2)
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int gotmachine = 0;
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int l1 = strlen(m1);
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int l2 = strlen(m2);
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- char m1save[MAXHOSTNAMELEN];
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+ char m1save[MAXHOSTNAMELEN+1];
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if (skiprc)
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return;
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strncpy(m1save, m1, sizeof(m1save));
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+ m1save[MAXHOSTNAMELEN] = 0;
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m1 = m1save;
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if (rcname[0] == 0) {
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@@ -2218,11 +2218,11 @@ cmdrc(char *m1, char *m2)
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if (isspace(line[0]))
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continue;
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if (strncasecmp(line, m1, l1) == 0)
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- strncpy(line, &line[l1], sizeof(line) - l1);
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+ memmove(line, &line[l1], sizeof(line) - l1);
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else if (strncasecmp(line, m2, l2) == 0)
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- strncpy(line, &line[l2], sizeof(line) - l2);
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+ memmove(line, &line[l2], sizeof(line) - l2);
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else if (strncasecmp(line, "DEFAULT", 7) == 0)
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- strncpy(line, &line[7], sizeof(line) - 7);
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+ memmove(line, &line[7], sizeof(line) - 7);
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else
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continue;
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if (line[0] != ' ' && line[0] != '\t' && line[0] != '\n')
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@@ -2345,6 +2345,7 @@ tn(int argc, char *argv[])
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}
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usage:
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printf("usage: %s [-l user] [-a] host-name [port]\r\n", cmd);
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+ free(user);
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return 0;
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}
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if (hostp == 0)
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--- a/telnetd/utility.c
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+++ b/telnetd/utility.c
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@@ -68,8 +68,10 @@ output_data(const char *format, ...)
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char *buf;
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va_start(args, format);
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- if ((len = vasprintf(&buf, format, args)) == -1)
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+ if ((len = vasprintf(&buf, format, args)) == -1) {
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+ va_end(args);
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return -1;
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+ }
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output_datalen(buf, len);
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va_end(args);
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free(buf);
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19
SOURCES/netkit-telnet-0.17-telnetrc.patch
Normal file
19
SOURCES/netkit-telnet-0.17-telnetrc.patch
Normal file
@ -0,0 +1,19 @@
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diff --git a/telnet/commands.c b/telnet/commands.c
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index 636fb5c..c0cc9b9 100644
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--- a/telnet/commands.c
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+++ b/telnet/commands.c
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@@ -2217,11 +2217,11 @@ cmdrc(char *m1, char *m2)
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if (isspace(line[0]))
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continue;
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if (strncasecmp(line, m1, l1) == 0)
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- strncpy(line, &line[l1], sizeof(line) - l1);
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+ memmove(line, &line[l1], sizeof(line) - l1);
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else if (strncasecmp(line, m2, l2) == 0)
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- strncpy(line, &line[l2], sizeof(line) - l2);
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+ memmove(line, &line[l2], sizeof(line) - l2);
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else if (strncasecmp(line, "DEFAULT", 7) == 0)
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- strncpy(line, &line[7], sizeof(line) - 7);
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+ memmove(line, &line[7], sizeof(line) - 7);
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else
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continue;
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if (line[0] != ' ' && line[0] != '\t' && line[0] != '\n')
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@ -1,15 +0,0 @@
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diff --git a/telnet/sys_bsd.c.old b/telnet/sys_bsd.c
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index 9e05171..39845ac 100644
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--- a/telnet/sys_bsd.c.old
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+++ b/telnet/sys_bsd.c
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@@ -833,6 +833,10 @@ NetSetPgrp(int fd)
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void
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deadpeer(int sig)
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{
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+ if(sig == SIGPIPE) {
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+ signal(SIGPIPE, SIG_DFL);
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+ fprintf(stderr, "Broken pipe\n");
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+ }
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(void)sig;
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setcommandmode();
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siglongjmp(peerdied, -1);
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@ -3,10 +3,9 @@
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Summary: The client program for the Telnet remote login protocol
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Name: telnet
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Version: 0.17
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Release: 76%{?dist}
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Release: 85%{?dist}
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Epoch: 1
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License: BSD
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Group: Applications/Internet
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Source0: ftp://ftp.uk.linux.org/pub/linux/Networking/netkit/netkit-telnet-%{version}.tar.gz
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Url: http://web.archive.org/web/20070819111735/www.hcs.harvard.edu/~dholland/computers/old-netkit.html
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# telnet-client tarball is snapshot of the OpenBSD client telnet
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@ -39,13 +38,13 @@ Patch27: telnet-0.17-force-ipv6-ipv4.patch
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Patch28: netkit-telnet-0.17-core-dump.patch
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Patch29: netkit-telnet-0.17-gcc7.patch
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Patch30: netkit-telnet-0.17-manpage.patch
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Patch31: netkit-telnet-0.17-covscan.patch
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Patch31: netkit-telnet-0.17-telnetrc.patch
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Patch32: telnet-log-address.patch
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Patch33: telnet-0.17-overflow-exploit.patch
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Patch34: telnet-0.17-pty-retry.patch
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Patch35: telnet-0.17-sigpipe-segfault.patch
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BuildRequires: ncurses-devel systemd
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BuildRequires: make
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BuildRequires: ncurses-devel systemd gcc gcc-c++
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BuildRequires: perl-interpreter
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%description
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@ -57,7 +56,6 @@ Requires: systemd
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Requires(post): systemd
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Requires(preun): systemd
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Requires(postun): systemd
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Group: System Environment/Daemons
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Summary: The server program for the Telnet remote login protocol
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%description server
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@ -98,11 +96,10 @@ mv telnet telnet-NETKIT
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%patch28 -p1 -b .core-dump
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%patch29 -p1 -b .gcc7
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%patch30 -p1 -b .manpage
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%patch31 -p1 -b .covscan
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%patch31 -p1 -b .telnetrc
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%patch32 -p1 -b .log-address
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%patch33 -p1 -b .overflow
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%patch34 -p1 -b .pty-retry
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%patch35 -p1 -b .sigpipe
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%build
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%ifarch s390 s390x
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@ -111,9 +108,9 @@ mv telnet telnet-NETKIT
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export CC_FLAGS="$RPM_OPT_FLAGS -fpie"
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%endif
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export LD_FLAGS="$LD_FLAGS -z now -pie"
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export LD_FLAGS="$RPM_LD_FLAGS -z now -pie"
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sh configure --with-c-compiler=gcc
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sh configure --with-c-compiler=%{__cc}
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perl -pi -e '
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s,-O2,\$(CC_FLAGS),;
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s,LDFLAGS=.*,LDFLAGS=\$(LD_FLAGS),;
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@ -129,20 +126,19 @@ perl -pi -e 's|install[ ]+-s|install|g' \
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./telnetlogin/Makefile \
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./telnet-NETKIT/Makefile
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make %{?_smp_mflags}
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%{make_build}
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%install
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mkdir -p ${RPM_BUILD_ROOT}%{_bindir}
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mkdir -p ${RPM_BUILD_ROOT}%{_sbindir}
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mkdir -p ${RPM_BUILD_ROOT}%{_unitdir}
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mkdir -p ${RPM_BUILD_ROOT}%{_mandir}/man1
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mkdir -p ${RPM_BUILD_ROOT}%{_mandir}/man5
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mkdir -p ${RPM_BUILD_ROOT}%{_mandir}/man8
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make INSTALLROOT=${RPM_BUILD_ROOT} install
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install -p -m644 %SOURCE5 ${RPM_BUILD_ROOT}%{_unitdir}/telnet@.service
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install -p -m644 %SOURCE6 ${RPM_BUILD_ROOT}%{_unitdir}/telnet.socket
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install -D -p -m644 %SOURCE5 ${RPM_BUILD_ROOT}%{_unitdir}/telnet@.service
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install -D -p -m644 %SOURCE6 ${RPM_BUILD_ROOT}%{_unitdir}/telnet.socket
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%post server
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%systemd_post telnet.socket
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@ -155,12 +151,10 @@ install -p -m644 %SOURCE6 ${RPM_BUILD_ROOT}%{_unitdir}/telnet.socket
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%files
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%doc README
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%defattr(-,root,root,-)
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%{_bindir}/telnet
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%{_mandir}/man1/telnet.1*
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%files server
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%defattr(-,root,root,-)
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%{_unitdir}/*
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%{_sbindir}/in.telnetd
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%{_mandir}/man5/issue.net.5*
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@ -168,18 +162,48 @@ install -p -m644 %SOURCE6 ${RPM_BUILD_ROOT}%{_unitdir}/telnet.socket
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%{_mandir}/man8/telnetd.8*
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%changelog
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* Tue Dec 15 2020 Michal Ruprich <mruprich@redhat.com> - 1:0.17-76
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- Resolves: #1895387 - telnet crashes on stack overflow due to infinite recursion
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* Tue Aug 10 2021 Mohan Boddu <mboddu@redhat.com> - 1:0.17-85
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- Rebuilt for IMA sigs, glibc 2.34, aarch64 flags
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Related: rhbz#1991688
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* Tue Oct 27 2020 Michal Ruprich <mruprich@redhat.com> - 1:0.17-75
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- Resolves: #1881335 - in.telnetd needs to tolerate temporary EIO errors
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* Fri Apr 16 2021 Mohan Boddu <mboddu@redhat.com> - 1:0.17-84
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- Rebuilt for RHEL 9 BETA on Apr 15th 2021. Related: rhbz#1947937
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* Thu Mar 26 2020 Michal Ruprich <michalruprich@gmail.com> - 1:0.17-74
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- Resolves: #1814474 - Arbitrary remote code execution in utility.c via short writes or urgent data
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* Wed Jan 27 2021 Fedora Release Engineering <releng@fedoraproject.org> - 1:0.17-83
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- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
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* Thu Oct 04 2018 Michal Ruprich <mruprich@redhat.com> - 1:0.17-73
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- Resolves: #1602711 - Please review important issues found by covscan
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- Resolves: #1637085 - Option -i is missing in telnet in el8 but is available in el7
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* Thu Nov 19 2020 Michal Ruprich <mruprich@redhat.com> - 1:0.17-82
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- Changing LD_FLAGS to RPM_LD_FLAGS
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- Use make_build macro and remove hard-coded gcc
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- https://docs.fedoraproject.org/en-US/packaging-guidelines/#_parallel_make
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* Fri Sep 25 2020 Michal Ruprich <mruprich@redhat.com> - 1:0.17-81
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- Resolves: #1882606 - in.telnetd needs to tolerate temporary EIO errors
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* Wed Jul 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1:0.17-80
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- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
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* Fri Mar 27 2020 Michal Ruprich <mruprich@redhat.com> - 1:0.17-79
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- Resolves: #1814478 - Arbitrary remote code execution in utility.c via short writes or urgent data
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* Fri Jan 31 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1:0.17-78
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- Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild
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* Sat Jul 27 2019 Fedora Release Engineering <releng@fedoraproject.org> - 1:0.17-77
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- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
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* Sun Feb 03 2019 Fedora Release Engineering <releng@fedoraproject.org> - 1:0.17-76
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- Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild
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* Wed Oct 10 2018 Michal Ruprich <mruprich@redhat.com> - 1:0.17-75
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- Adding -i option for disabling reverse DNS lookup
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* Mon Jul 23 2018 Michal Ruprich <mruprich@redhat.com> - 1:0.17-74
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- Resolves: #1606506 - telnet: FTBFS in Fedora rawhide
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- Resolves: #1505954 - telnet failing to parse .telnetrc due to strncpy used on overlaping buffers
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* Sat Jul 14 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1:0.17-73
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- Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild
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* Fri Feb 09 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1:0.17-72
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- Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
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|
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Reference in New Issue
Block a user