https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=8f00fa7f36af6d35cd5f1f3c910b9215d7cb3e41
commit 8f00fa7f36af6d35cd5f1f3c910b9215d7cb3e41 Author: Corinna Vinschen <[email protected]> Date: Tue Mar 17 11:40:12 2015 +0100 Avoid name change if script is called via symlink from execvp et al. * spawn.cc (find_exec): Fix a name change in case of a symlink which can be opened as is. Signed-off-by: Corinna Vinschen <[email protected]> Diff: --- winsup/cygwin/ChangeLog | 5 +++++ winsup/cygwin/release/1.7.36 | 3 +++ winsup/cygwin/spawn.cc | 12 ++++++------ 3 files changed, 14 insertions(+), 6 deletions(-) diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog index 18dcc25..97b8104 100644 --- a/winsup/cygwin/ChangeLog +++ b/winsup/cygwin/ChangeLog @@ -1,3 +1,8 @@ +2015-03-17 Corinna Vinschen <[email protected]> + + * spawn.cc (find_exec): Fix a name change in case of a symlink which + can be opened as is. + 2015-03-12 Jon TURNEY <[email protected]> * exceptions.cc (stack_info): Add sigstackptr member. diff --git a/winsup/cygwin/release/1.7.36 b/winsup/cygwin/release/1.7.36 index 1f89a97..2879777 100644 --- a/winsup/cygwin/release/1.7.36 +++ b/winsup/cygwin/release/1.7.36 @@ -15,3 +15,6 @@ Bug Fixes - Fix potential premature SIGHUP in pty code. Addresses: https://cygwin.com/ml/cygwin/2015-03/msg00070.html + +- Fix a name change from symlink to target name in calls to execvp, system, etc. + Addresses: https://cygwin.com/ml/cygwin/2015-03/msg00270.html diff --git a/winsup/cygwin/spawn.cc b/winsup/cygwin/spawn.cc index 720a943..1cc5cf3 100644 --- a/winsup/cygwin/spawn.cc +++ b/winsup/cygwin/spawn.cc @@ -104,13 +104,13 @@ find_exec (const char *name, path_conv& buf, const char *search, if ((has_slash || opt & FE_CWD) && (suffix = perhaps_suffix (name, buf, err, opt)) != NULL) { + /* Overwrite potential symlink target with original path. + See comment preceeding this method. */ + tmp_path = tmp; if (!has_slash) - { - /* Overwrite potential symlink target with original path. - See comment preceeding this method. */ - stpcpy (stpcpy (tmp, "./"), name); - buf.set_posix (tmp); - } + tmp_path = stpcpy (tmp, "./"); + stpcpy (tmp_path, name); + buf.set_posix (tmp); retval = buf.get_posix (); goto out; }
