On Fri, Dec 15, 2017 at 05:40:15PM -0800, Cy Schubert wrote:
> In message <201712060944.vb69izqe027...@repo.freebsd.org>, Baptiste 
> Daroussin w
> rites:
> > Author: bapt
> > Date: Wed Dec  6 09:44:35 2017
> > New Revision: 326617
> > URL: https://svnweb.freebsd.org/changeset/base/326617
> >
> > Log:
> >   Allow newsyslog to execute compression commands which
> >   have a semantic different than the traditional gzip(1)
> >   
> >   This is done to allow to use zstd(1) as a compression tool without
> >   having to patch it to change its default behavior.
> >
> > Modified:
> >   head/usr.sbin/newsyslog/newsyslog.c
> >
> > Modified: head/usr.sbin/newsyslog/newsyslog.c
> > =============================================================================
> > =
> > --- head/usr.sbin/newsyslog/newsyslog.c     Wed Dec  6 06:49:53 2017
> >     (r326616)
> > +++ head/usr.sbin/newsyslog/newsyslog.c     Wed Dec  6 09:44:35 2017
> >     (r326617)
> > @@ -151,14 +151,23 @@ struct compress_types {
> >     const char *flag;       /* Flag in configuration file */
> >     const char *suffix;     /* Compression suffix */
> >     const char *path;       /* Path to compression program */
> > +   char **args;    /* Comrpession arguments */
> >  };
> >  
> > +static char f_arg[] = "-f";
> > +static char q_arg[] = "-q";
> > +static char rm_arg[] = "--rm";
> > +static char *gz_args[] ={ NULL, f_arg, NULL, NULL };
> > +#define bzip2_args gz_args
> > +#define xz_args gz_args
> > +static char *zstd_args[] = { NULL, q_arg, rm_arg, NULL, NULL };
> > +
> >  static const struct compress_types compress_type[COMPRESS_TYPES] = {
> > -   { "", "", "" },                                 /* no compression */
> > -   { "Z", COMPRESS_SUFFIX_GZ, _PATH_GZIP },        /* gzip compression */
> > -   { "J", COMPRESS_SUFFIX_BZ2, _PATH_BZIP2 },      /* bzip2 compression */
> > -   { "X", COMPRESS_SUFFIX_XZ, _PATH_XZ },          /* xz compression */
> > -   { "Y", COMPRESS_SUFFIX_ZST, _PATH_ZSTD }        /* zst compression */
> > +   { "", "", "", NULL},                                    /* none */
> > +   { "Z", COMPRESS_SUFFIX_GZ, _PATH_GZIP, gz_args},        /* gzip */
> > +   { "J", COMPRESS_SUFFIX_BZ2, _PATH_BZIP2, bzip2_args},   /* bzip2 */
> > +   { "X", COMPRESS_SUFFIX_XZ, _PATH_XZ, xz_args },         /* xz */
> > +   { "Y", COMPRESS_SUFFIX_ZST, _PATH_ZSTD, zstd_args }     /* zst */
> >  };
> >  
> >  struct conf_entry {
> > @@ -2001,6 +2010,8 @@ do_zipwork(struct zipwork_entry *zwork)
> >     int errsav, fcount, zstatus;
> >     pid_t pidzip, wpid;
> >     char zresult[MAXPATHLEN];
> > +   char command[BUFSIZ];
> > +   char **args;
> >     int c;
> >  
> >     assert(zwork != NULL);
> > @@ -2013,6 +2024,7 @@ do_zipwork(struct zipwork_entry *zwork)
> >                             pgm_path = compress_type[c].path;
> >                             (void) strlcat(zresult,
> >                                 compress_type[c].suffix, sizeof(zresult));
> > +                           args = compress_type[c].args;
> >                             break;
> >                     }
> >             }
> > @@ -2026,6 +2038,13 @@ do_zipwork(struct zipwork_entry *zwork)
> >     else
> >             pgm_name++;
> >  
> > +   args[0] = strdup(pgm_name);
> > +   if (args[0] == NULL)
> > +           err(1, "strdup()");
> > +   for (c = 0; args[c] != NULL; c++)
> > +           ;
> > +   args[c] = zwork->zw_fname;
> > +
> >     if (zwork->zw_swork != NULL && zwork->zw_swork->sw_runcmd == 0 &&
> >         zwork->zw_swork->sw_pidok <= 0) {
> >             warnx(
> > @@ -2035,6 +2054,11 @@ do_zipwork(struct zipwork_entry *zwork)
> >             return;
> >     }
> >  
> > +   strlcpy(command, pgm_path, sizeof(command));
> > +   for (c = 1; args[c] != NULL; c++) {
> > +           strlcat(command, " ", sizeof(command));
> > +           strlcat(command, args[c], sizeof(command));
> > +   }
> >     if (noaction) {
> >             printf("\t%s %s\n", pgm_name, zwork->zw_fname);
> >             change_attrs(zresult, zwork->zw_conf);
> > @@ -2058,8 +2082,8 @@ do_zipwork(struct zipwork_entry *zwork)
> >     }
> >     if (!pidzip) {
> >             /* The child process executes the compression command */
> > -           execl(pgm_path, pgm_path, "-f", zwork->zw_fname, (char *)0);
> > -           err(1, "execl(`%s -f %s')", pgm_path, zwork->zw_fname);
> > +           execv(pgm_path, (char *const*) args);
> > +           err(1, "execv(`%s')", command);
> >     }
> >  
> >     wpid = waitpid(pidzip, &zstatus, 0);
> > @@ -2069,13 +2093,12 @@ do_zipwork(struct zipwork_entry *zwork)
> >             return;
> >     }
> >     if (!WIFEXITED(zstatus)) {
> > -           warnx("`%s -f %s' did not terminate normally", pgm_name,
> > -               zwork->zw_fname);
> > +           warnx("`%s' did not terminate normally", command);
> >             return;
> >     }
> >     if (WEXITSTATUS(zstatus)) {
> > -           warnx("`%s -f %s' terminated with a non-zero status (%d)",
> > -               pgm_name, zwork->zw_fname, WEXITSTATUS(zstatus));
> > +           warnx("`%s' terminated with a non-zero status (%d)", command,
> > +               WEXITSTATUS(zstatus));
> >             return;
> >     }
> >  
> >
> 
> Ever since this revision I'm seeing the following errors:
> 
> bzip2: Can't open input file ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ: No such 
> file or directory.
> newsyslog: `/usr/bin/bzip2 -f ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ 
> /var/log/debug.log.0' terminated with a non-zero status (1)
> bzip2: Bad flag `--rm'
> bzip2, a block-sorting file compressor.  Version 1.0.6, 6-Sept-2010.
> 
>    usage: bzip2 [flags and input files in any order]
> 
>    -h --help           print this message
>    -d --decompress     force decompression
>    -z --compress       force compression
>    -k --keep           keep (don't delete) input files
>    -f --force          overwrite existing output files
>    -t --test           test compressed file integrity
>    -c --stdout         output to standard out
>    -q --quiet          suppress noncritical error messages
>    -v --verbose        be verbose (a 2nd -v gives more)
>    -L --license        display software version & license
>    -V --version        display software version & license
>    -s --small          use less memory (at most 2500k)
>    -1 .. -9            set block size to 100k .. 900k
>    --fast              alias for -1
>    --best              alias for -9
> 
>    If invoked as `bzip2', default action is to compress.
>               as `bunzip2',  default action is to decompress.
>               as `bzcat', default action is to decompress to stdout.
> 
>    If no file names are given, bzip2 compresses or decompresses
>    from standard input to standard output.  You can combine
>    short flags, so `-v -4' means the same as -v4 or -4v, &c.
> 
> newsyslog: `/usr/bin/bzip2 -f ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ
> ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ 
> ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ /var/log/messages.0 -q --rm' 
> terminated with a non-zero status (1)

Should be fixed in r326930.

Sorry about that,
Best regards,
Bapt

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