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/* $Id$ */
/*
* Copyright (c) 2014 Baptiste Daroussin <bapt@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer
* in this position and unchanged.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include <sys/types.h>
#include <ctype.h>
#if HAVE_ERR
#include <err.h>
#endif
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if HAVE_STRINGLIST
#include <stringlist.h>
#else
#include "compat_stringlist.h"
#endif
#include <unistd.h>
#define C_OPTION 0x1
static StringList *includes;
static void
usage(void)
{
fprintf(stderr, "usage: soelim [-Crtv] [-I dir] [files]\n");
exit(EXIT_FAILURE);
}
static FILE *
soelim_fopen(const char *name)
{
FILE *f;
char path[PATH_MAX];
size_t i;
if (strcmp(name, "-") == 0)
return (stdin);
if ((f = fopen(name, "r")) != NULL)
return (f);
if (*name == '/') {
warn("can't open '%s'", name);
return (NULL);
}
for (i = 0; i < includes->sl_cur; i++) {
snprintf(path, sizeof(path), "%s/%s", includes->sl_str[i],
name);
if ((f = fopen(path, "r")) != NULL)
return (f);
}
warn("can't open '%s'", name);
return (f);
}
static int
soelim_file(FILE *f, int flag)
{
char *line = NULL;
char *walk, *cp;
size_t linecap = 0;
ssize_t linelen;
if (f == NULL)
return (1);
while ((linelen = getline(&line, &linecap, f)) > 0) {
if (strncmp(line, ".so", 3) != 0) {
printf("%s", line);
continue;
}
walk = line + 3;
if (!isspace(*walk) && ((flag & C_OPTION) == 0)) {
printf("%s", line);
continue;
}
while (isspace(*walk))
walk++;
cp = walk;
while (*cp != '\0' && !isspace(*cp))
cp++;
*cp = 0;
if (cp < line + linelen)
cp++;
if (*walk == '\0') {
printf("%s", line);
continue;
}
if (soelim_file(soelim_fopen(walk), flag) == 1) {
free(line);
return (1);
}
if (*cp != '\0')
printf("%s", cp);
}
free(line);
fclose(f);
return (0);
}
int
main(int argc, char **argv)
{
int ch, i;
int ret = 0;
int flags = 0;
includes = sl_init();
if (includes == NULL)
err(EXIT_FAILURE, "sl_init()");
while ((ch = getopt(argc, argv, "CrtvI:")) != -1) {
switch (ch) {
case 'C':
flags |= C_OPTION;
break;
case 'r':
case 'v':
case 't':
/* stub compatibility with groff's soelim */
break;
case 'I':
sl_add(includes, optarg);
break;
default:
sl_free(includes, 0);
usage();
}
}
argc -= optind;
argv += optind;
if (argc == 0)
ret = soelim_file(stdin, flags);
for (i = 0; i < argc; i++)
ret = soelim_file(soelim_fopen(argv[i]), flags);
sl_free(includes, 0);
return (ret);
}
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