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Move main to the end.

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Remove fwd dcls.
This commit is contained in:
Jim Meyering
1995-11-09 23:16:13 +00:00
parent b951477c80
commit 2b3ce6fab9
1 changed files with 134 additions and 137 deletions
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271
src/ln.c
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@@ -31,10 +31,10 @@
#include "version.h"
#include "error.h"
int link (const char *, const char *); /* Some systems don't declare this anywhere. */
int link (); /* Some systems don't declare this anywhere. */
#ifdef S_ISLNK
int symlink (const char *, const char *);
int symlink ();
#endif
/* Construct a string NEW_DEST by concatenating DEST, a slash, and
@@ -57,16 +57,13 @@ int symlink (const char *, const char *);
} \
while (0)
char *basename (char *);
char *basename ();
enum backup_type get_version ();
int isdir ();
int yesno ();
void strip_trailing_slashes ();
char *stpcpy ();
static void usage (int status);
static int do_link (char *source, char *dest);
/* The name by which the program was run, for error messages. */
char *program_name;
@@ -117,137 +114,6 @@ static struct option const long_options[] =
{NULL, 0, NULL, 0}
};
void
main (int argc, char **argv)
{
int c;
int errors;
int make_backups = 0;
char *version;
version = getenv ("SIMPLE_BACKUP_SUFFIX");
if (version)
simple_backup_suffix = version;
version = getenv ("VERSION_CONTROL");
program_name = argv[0];
linkfunc = link;
symbolic_link = remove_existing_files = interactive = verbose
= hard_dir_link = 0;
errors = 0;
while ((c = getopt_long (argc, argv, "bdfinsvFS:V:", long_options, (int *) 0))
!= EOF)
{
switch (c)
{
case 0: /* Long-named option. */
break;
case 'b':
make_backups = 1;
break;
case 'd':
case 'F':
hard_dir_link = 1;
break;
case 'f':
remove_existing_files = 1;
interactive = 0;
break;
case 'i':
remove_existing_files = 0;
interactive = 1;
break;
case 'n':
dereference_dest_dir_symlinks = 0;
break;
case 's':
#ifdef S_ISLNK
symbolic_link = 1;
#else
error (1, 0, "symbolic links are not supported on this system");
#endif
break;
case 'v':
verbose = 1;
break;
case 'S':
simple_backup_suffix = optarg;
break;
case 'V':
version = optarg;
break;
default:
usage (1);
break;
}
}
if (show_version)
{
printf ("ln - %s\n", version_string);
exit (0);
}
if (show_help)
usage (0);
if (optind == argc)
{
error (0, 0, "missing file argument");
usage (1);
}
if (make_backups)
backup_type = get_version (version);
#ifdef S_ISLNK
if (symbolic_link)
linkfunc = symlink;
#endif
if (optind == argc - 1)
errors = do_link (argv[optind], ".");
else if (optind == argc - 2)
{
struct stat source_stats;
char *source;
char *dest;
char *new_dest;
source = argv[optind];
dest = argv[optind + 1];
/* When the destination is specified with a trailing slash and the
source exists but is not a directory, convert the user's command
`ln source dest/' to `ln source dest/basename(source)'. */
if (dest[strlen (dest) - 1] == '/'
&& lstat (source, &source_stats) == 0
&& !S_ISDIR (source_stats.st_mode))
{
PATH_BASENAME_CONCAT (new_dest, dest, source);
}
else
{
new_dest = dest;
}
errors = do_link (source, new_dest);
}
else
{
char *to;
to = argv[argc - 1];
if (!isdir (to))
error (1, 0, "when making multiple links, last argument must be a directory");
for (; optind < argc - 1; ++optind)
errors += do_link (argv[optind], to);
}
exit (errors != 0);
}
/* Make a link DEST to the (usually) existing file SOURCE.
Symbolic links to nonexistent files are allowed.
If DEST is a directory, put the link to SOURCE in that directory.
@@ -429,3 +295,134 @@ version control may be set with VERSION_CONTROL, values are:\n\
}
exit (status);
}
void
main (int argc, char **argv)
{
int c;
int errors;
int make_backups = 0;
char *version;
version = getenv ("SIMPLE_BACKUP_SUFFIX");
if (version)
simple_backup_suffix = version;
version = getenv ("VERSION_CONTROL");
program_name = argv[0];
linkfunc = link;
symbolic_link = remove_existing_files = interactive = verbose
= hard_dir_link = 0;
errors = 0;
while ((c = getopt_long (argc, argv, "bdfinsvFS:V:", long_options, (int *) 0))
!= EOF)
{
switch (c)
{
case 0: /* Long-named option. */
break;
case 'b':
make_backups = 1;
break;
case 'd':
case 'F':
hard_dir_link = 1;
break;
case 'f':
remove_existing_files = 1;
interactive = 0;
break;
case 'i':
remove_existing_files = 0;
interactive = 1;
break;
case 'n':
dereference_dest_dir_symlinks = 0;
break;
case 's':
#ifdef S_ISLNK
symbolic_link = 1;
#else
error (1, 0, "symbolic links are not supported on this system");
#endif
break;
case 'v':
verbose = 1;
break;
case 'S':
simple_backup_suffix = optarg;
break;
case 'V':
version = optarg;
break;
default:
usage (1);
break;
}
}
if (show_version)
{
printf ("ln - %s\n", version_string);
exit (0);
}
if (show_help)
usage (0);
if (optind == argc)
{
error (0, 0, "missing file argument");
usage (1);
}
if (make_backups)
backup_type = get_version (version);
#ifdef S_ISLNK
if (symbolic_link)
linkfunc = symlink;
#endif
if (optind == argc - 1)
errors = do_link (argv[optind], ".");
else if (optind == argc - 2)
{
struct stat source_stats;
char *source;
char *dest;
char *new_dest;
source = argv[optind];
dest = argv[optind + 1];
/* When the destination is specified with a trailing slash and the
source exists but is not a directory, convert the user's command
`ln source dest/' to `ln source dest/basename(source)'. */
if (dest[strlen (dest) - 1] == '/'
&& lstat (source, &source_stats) == 0
&& !S_ISDIR (source_stats.st_mode))
{
PATH_BASENAME_CONCAT (new_dest, dest, source);
}
else
{
new_dest = dest;
}
errors = do_link (source, new_dest);
}
else
{
char *to;
to = argv[argc - 1];
if (!isdir (to))
error (1, 0, "when making multiple links, last argument must be a directory");
for (; optind < argc - 1; ++optind)
errors += do_link (argv[optind], to);
}
exit (errors != 0);
}