The cat_opts and decomp_opts fields in struct compressor are unused

so just remove them.  Also mark functions private to main.c as
static.  For SMALL, longopts can be NULL instead of an empty array.
OK kn@

diff --git a/usr.bin/compress/main.c b/usr.bin/compress/main.c
index 09be764..99e57e2 100644 (file)
--- a/usr.bin/compress/main.c
+++ b/usr.bin/compress/main.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: main.c,v 1.102 2022/10/22 14:41:27 millert Exp $      */
+/*     $OpenBSD: main.c,v 1.103 2022/10/23 19:06:35 millert Exp $      */
 
 /*
  * Copyright (c) 1992, 1993
@@ -61,9 +61,7 @@ const struct compressor {
        const char *name;
        const char *suffix;
        const u_char *magic;
-       const char *comp_opts;
-       const char *decomp_opts;
-       const char *cat_opts;
+       const char *opts;
        void *(*ropen)(int, char *, int);
        int (*read)(void *, char *, int);
 #ifndef SMALL
@@ -78,8 +76,6 @@ const struct compressor {
                ".gz",
                "\037\213",
                "123456789ab:cdfhkLlNnOo:qrS:tVv",
-               "cfhkLlNno:qrtVv",
-               "fhqr",
                gz_ropen,
                gz_read,
 #ifndef SMALL
@@ -95,8 +91,6 @@ const struct compressor {
                ".Z",
                "\037\235",
                "123456789ab:cdfghlNnOo:qrS:tv",
-               "cfhlNno:qrtv",
-               "fghqr",
                z_ropen,
                zread,
                z_wopen,
@@ -109,8 +103,6 @@ const struct compressor {
                ".zip",
                "PK",
                NULL,
-               "cfhkLlNno:qrtVv",
-               "fhqr",
                zip_ropen,
                zip_read,
                NULL,
@@ -127,8 +119,6 @@ const struct compressor null_method = {
        ".nul",
        "XX",
        "123456789ab:cdfghlNnOo:qrS:tv",
-       "cfhlNno:qrtv",
-       "fghqr",
        null_ropen,
        null_read,
        null_wopen,
@@ -137,19 +127,19 @@ const struct compressor null_method = {
 };
 #endif /* SMALL */
 
-int permission(const char *);
-__dead void usage(int);
-int docompress(const char *, char *, const struct compressor *,
+static int permission(const char *);
+static __dead void usage(int);
+static int docompress(const char *, char *, const struct compressor *,
     int, struct stat *);
-int dodecompress(const char *, char *, struct stat *);
-const struct compressor *check_method(int);
-const char *check_suffix(const char *);
-char *set_outfile(const char *, char *, size_t);
-void list_stats(const char *, const struct compressor *, struct z_info *);
-void verbose_info(const char *, off_t, off_t, u_int32_t);
+static int dodecompress(const char *, char *, struct stat *);
+static const char *check_suffix(const char *);
+static char *set_outfile(const char *, char *, size_t);
+static void list_stats(const char *, const struct compressor *,
+    struct z_info *);
+static void verbose_info(const char *, off_t, off_t, u_int32_t);
 
-const struct option longopts[] = {
 #ifndef SMALL
+const struct option longopts[] = {
        { "ascii",      no_argument,            0, 'a' },
        { "stdout",     no_argument,            0, 'c' },
        { "to-stdout",  no_argument,            0, 'c' },
@@ -170,9 +160,11 @@ const struct option longopts[] = {
        { "version",    no_argument,            0, 'V' },
        { "fast",       no_argument,            0, '1' },
        { "best",       no_argument,            0, '9' },
-#endif /* SMALL */
        { NULL }
 };
+#else /* SMALL */
+const struct option *longopts = NULL;
+#endif /* SMALL */
 
 int
 main(int argc, char *argv[])
@@ -202,7 +194,7 @@ main(int argc, char *argv[])
                method = M_COMPRESS;
 #endif /* SMALL */
        }
-       optstr = method->comp_opts;
+       optstr = method->opts;
 
        decomp = 0;
        pmode = MODE_COMP;
@@ -617,7 +609,7 @@ docompress(const char *in, char *out, const struct compressor *method,
 #endif
 }
 
-const struct compressor *
+static const struct compressor *
 check_method(int fd)
 {
        const struct compressor *method;
@@ -640,7 +632,7 @@ check_method(int fd)
        return (NULL);
 }
 
-int
+static int
 dodecompress(const char *in, char *out, struct stat *sb)
 {
        const struct compressor *method;
@@ -690,7 +682,7 @@ dodecompress(const char *in, char *out, struct stat *sb)
                return (FAILURE);
        }
        if (storename && oldname[0] != '\0') {
-               char *oldbase = basename(oldname);
+               const char *oldbase = basename(oldname);
                char *cp = strrchr(out, '/');
                if (cp != NULL) {
                        *(cp + 1) = '\0';
@@ -834,7 +826,7 @@ setfile(const char *name, int fd, struct stat *fs)
                warn("futimens: %s", name);
 }
 
-int
+static int
 permission(const char *fname)
 {
        int ch, first;
@@ -851,7 +843,7 @@ permission(const char *fname)
 /*
  * Check infile for a known suffix and return the suffix portion or NULL.
  */
-const char *
+static const char *
 check_suffix(const char *infile)
 {
        int i;
@@ -878,7 +870,7 @@ check_suffix(const char *infile)
  * Set outfile based on the suffix.  In most cases we just strip
  * off the suffix but things like .tgz and .taz are special.
  */
-char *
+static char *
 set_outfile(const char *infile, char *outfile, size_t osize)
 {
        const char *s;
@@ -905,7 +897,7 @@ set_outfile(const char *infile, char *outfile, size_t osize)
 /*
  * Print output for the -l option.
  */
-void
+static void
 list_stats(const char *name, const struct compressor *method,
     struct z_info *info)
 {
@@ -954,7 +946,7 @@ list_stats(const char *name, const struct compressor *method,
        }
 }
 
-void
+static void
 verbose_info(const char *file, off_t compressed, off_t uncompressed,
     u_int32_t hlen)
 {
@@ -973,7 +965,7 @@ verbose_info(const char *file, off_t compressed, off_t uncompressed,
            (long long)(decomp ? uncompressed : compressed));
 }
 
-__dead void
+static __dead void
 usage(int status)
 {
        const bool gzip = (__progname[0] == 'g');