diff options
Diffstat (limited to 'soelim.c')
| -rw-r--r-- | soelim.c | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/soelim.c b/soelim.c new file mode 100644 index 00000000..de6911f3 --- /dev/null +++ b/soelim.c @@ -0,0 +1,178 @@ +/*- + * 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 <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> + +#define _WITH_GETLINE +#include <stdio.h> +#include <unistd.h> +#include <stdlib.h> +#include <stdbool.h> +#include <string.h> +#include <stringlist.h> +#include <err.h> +#include <ctype.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[MAXPATHLEN]; + 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); +} |