1 /*- 2 * Copyright (c) 2014 Baptiste Daroussin <bapt@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer 10 * in this position and unchanged. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $FreeBSD: head/usr.bin/soelim/soelim.c 283197 2015-05-21 08:26:24Z bapt $ 27 */ 28 29 #include <sys/types.h> 30 31 #include <ctype.h> 32 #include <err.h> 33 #include <limits.h> 34 #define _WITH_GETLINE 35 #include <stdio.h> 36 #include <stdlib.h> 37 #include <string.h> 38 #include <stringlist.h> 39 #include <unistd.h> 40 41 #define C_OPTION 0x1 42 43 static StringList *includes; 44 45 static void 46 usage(void) 47 { 48 49 fprintf(stderr, "usage: soelim [-Crtv] [-I dir] [files]\n"); 50 51 exit(EXIT_FAILURE); 52 } 53 54 static FILE * 55 soelim_fopen(const char *name) 56 { 57 FILE *f; 58 char path[PATH_MAX]; 59 size_t i; 60 61 if (strcmp(name, "-") == 0) 62 return (stdin); 63 64 if ((f = fopen(name, "r")) != NULL) 65 return (f); 66 67 if (*name == '/') { 68 warn("can't open '%s'", name); 69 return (NULL); 70 } 71 72 for (i = 0; i < includes->sl_cur; i++) { 73 snprintf(path, sizeof(path), "%s/%s", includes->sl_str[i], 74 name); 75 if ((f = fopen(path, "r")) != NULL) 76 return (f); 77 } 78 79 warn("can't open '%s'", name); 80 81 return (f); 82 } 83 84 static int 85 soelim_file(FILE *f, int flag) 86 { 87 char *line = NULL; 88 char *walk, *cp; 89 size_t linecap = 0; 90 ssize_t linelen; 91 92 if (f == NULL) 93 return (1); 94 95 while ((linelen = getline(&line, &linecap, f)) > 0) { 96 if (strncmp(line, ".so", 3) != 0) { 97 printf("%s", line); 98 continue; 99 } 100 101 walk = line + 3; 102 if (!isspace(*walk) && ((flag & C_OPTION) == 0)) { 103 printf("%s", line); 104 continue; 105 } 106 107 while (isspace(*walk)) 108 walk++; 109 110 cp = walk; 111 while (*cp != '\0' && !isspace(*cp)) 112 cp++; 113 *cp = 0; 114 if (cp < line + linelen) 115 cp++; 116 117 if (*walk == '\0') { 118 printf("%s", line); 119 continue; 120 } 121 if (soelim_file(soelim_fopen(walk), flag) == 1) { 122 free(line); 123 return (1); 124 } 125 if (*cp != '\0') 126 printf("%s", cp); 127 } 128 129 free(line); 130 fclose(f); 131 132 return (0); 133 } 134 135 int 136 main(int argc, char **argv) 137 { 138 int ch, i; 139 int ret = 0; 140 int flags = 0; 141 142 includes = sl_init(); 143 if (includes == NULL) 144 err(EXIT_FAILURE, "sl_init()"); 145 146 while ((ch = getopt(argc, argv, "CrtvI:")) != -1) { 147 switch (ch) { 148 case 'C': 149 flags |= C_OPTION; 150 break; 151 case 'r': 152 case 'v': 153 case 't': 154 /* stub compatibility with groff's soelim */ 155 break; 156 case 'I': 157 sl_add(includes, optarg); 158 break; 159 default: 160 sl_free(includes, 0); 161 usage(); 162 } 163 } 164 165 argc -= optind; 166 argv += optind; 167 168 if (argc == 0) 169 ret = soelim_file(stdin, flags); 170 171 for (i = 0; i < argc; i++) 172 ret = soelim_file(soelim_fopen(argv[i]), flags); 173 174 sl_free(includes, 0); 175 176 return (ret); 177 } 178