Fair enough. I'm fine standardizing either way. strn?cmp() is probably more "correct". As it stands, though, the check in core is not actually checking everything that log.c will handle.
> On 18 Apr 2018, at 10:15, William A Rowe Jr <wr...@rowe-clan.net> wrote: > > On Wed, Apr 18, 2018 at 7:17 AM, Jim Riggs <jim...@riggs.me> wrote: >> I didn't think of this before, but there is one edge case this would miss: >> if someone (for whatever reason) wants a relative ErrorLog *file* named >> `syslog*', for example `ErrorLog "syslog-httpd.log"' or `ErrorLog >> "syslog.log"'. It appears that this is already broken in server/log.c, >> though. Also, log.c is using str(n)casecmp. The following would make things >> consistent and handle this weird edge case. Thoughts? >> >> Index: server/core.c >> =================================================================== >> --- server/core.c (revision 1829431) >> +++ server/core.c (working copy) >> @@ -4867,7 +4867,8 @@ >> static int check_errorlog_dir(apr_pool_t *p, server_rec *s) >> { >> if (!s->error_fname || s->error_fname[0] == '|' >> - || strcmp(s->error_fname, "syslog") == 0) { >> + || strcasecmp(s->error_fname, "syslog") == 0 >> + || strncasecmp(s->error_fname, "syslog:", 7) == 0) { >> return APR_SUCCESS; >> } >> else { >> @@ -5281,7 +5282,9 @@ >> apr_file_printf(out, "ServerRoot: \"%s\"\n", ap_server_root); >> tmp = ap_server_root_relative(p, sconf->ap_document_root); >> apr_file_printf(out, "Main DocumentRoot: \"%s\"\n", tmp); >> - if (s->error_fname[0] != '|' && strcmp(s->error_fname, "syslog") != 0) >> + if (s->error_fname[0] != '|' >> + && strcasecmp(s->error_fname, "syslog") != 0 >> + && strncasecmp(s->error_fname, "syslog:", 7) != 0) >> tmp = ap_server_root_relative(p, s->error_fname); >> else >> tmp = s->error_fname; >> @@ -5456,4 +5459,3 @@ >> core_cmds, /* command apr_table_t */ >> register_hooks /* register hooks */ >> }; >> - >> Index: server/log.c >> =================================================================== >> --- server/log.c (revision 1829431) >> +++ server/log.c (working copy) >> @@ -396,7 +396,8 @@ >> } >> >> #ifdef HAVE_SYSLOG >> - else if (!strncasecmp(s->error_fname, "syslog", 6)) { >> + else if (strcasecmp(s->error_fname, "syslog") == 0 >> + || strncasecmp(s->error_fname, "syslog:", 7) == 0) { >> if ((fname = strchr(s->error_fname, ':'))) { >> /* s->error_fname could be [level]:[tag] (see #60525) */ >> const char *tag; > > Shouldn't we normalize the use of strcmp instead of strcasecmp? > In any case it must be entirely normalized to one or the other. > > Linux is a case-sensitive OS in the first place, and if configured > with SYSLOG: today it is broken when you hit core, which ignores > that code path. Since the behavior has always been syslog: I'm > not seeing a benefit to case insensitivity.