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 303526 2016-07-30 01:07:47Z bapt $ 27 */ 28 29 #include <sys/types.h> 30 31 #include <ctype.h> 32 #include <err.h> 33 #include <limits.h> 34 #include <stdio.h> 35 #include <stdlib.h> 36 #include <string.h> 37 #include <stringlist.h> 38 #include <unistd.h> 39 40 #define C_OPTION 0x1 41 42 static StringList *includes; 43 44 static void 45 usage(void) 46 { 47 48 fprintf(stderr, "usage: soelim [-Crtv] [-I dir] [files]\n"); 49 50 exit(EXIT_FAILURE); 51 } 52 53 static FILE * 54 soelim_fopen(const char *name) 55 { 56 FILE *f; 57 char path[PATH_MAX]; 58 size_t i; 59 60 if (strcmp(name, "-") == 0) 61 return (stdin); 62 63 if ((f = fopen(name, "r")) != NULL) 64 return (f); 65 66 if (*name == '/') { 67 warn("can't open '%s'", name); 68 return (NULL); 69 } 70 71 for (i = 0; i < includes->sl_cur; i++) { 72 snprintf(path, sizeof(path), "%s/%s", includes->sl_str[i], 73 name); 74 if ((f = fopen(path, "r")) != NULL) 75 return (f); 76 } 77 78 warn("can't open '%s'", name); 79 80 return (f); 81 } 82 83 static int 84 soelim_file(FILE *f, int flag) 85 { 86 char *line = NULL; 87 char *walk, *cp; 88 size_t linecap = 0; 89 ssize_t linelen; 90 91 if (f == NULL) 92 return (1); 93 94 while ((linelen = getline(&line, &linecap, f)) > 0) { 95 if (strncmp(line, ".so", 3) != 0) { 96 printf("%s", line); 97 continue; 98 } 99 100 walk = line + 3; 101 if (!isspace(*walk) && ((flag & C_OPTION) == 0)) { 102 printf("%s", line); 103 continue; 104 } 105 106 while (isspace(*walk)) 107 walk++; 108 109 cp = walk; 110 while (*cp != '\0' && !isspace(*cp)) 111 cp++; 112 *cp = 0; 113 if (cp < line + linelen) 114 cp++; 115 116 if (*walk == '\0') { 117 printf("%s", line); 118 continue; 119 } 120 if (soelim_file(soelim_fopen(walk), flag) == 1) { 121 free(line); 122 return (1); 123 } 124 if (*cp != '\0') 125 printf("%s", cp); 126 } 127 128 free(line); 129 fclose(f); 130 131 return (0); 132 } 133 134 int 135 main(int argc, char **argv) 136 { 137 int ch, i; 138 int ret = 0; 139 int flags = 0; 140 141 includes = sl_init(); 142 if (includes == NULL) 143 err(EXIT_FAILURE, "sl_init()"); 144 145 while ((ch = getopt(argc, argv, "CrtvI:")) != -1) { 146 switch (ch) { 147 case 'C': 148 flags |= C_OPTION; 149 break; 150 case 'r': 151 case 'v': 152 case 't': 153 /* stub compatibility with groff's soelim */ 154 break; 155 case 'I': 156 sl_add(includes, optarg); 157 break; 158 default: 159 sl_free(includes, 0); 160 usage(); 161 } 162 } 163 164 argc -= optind; 165 argv += optind; 166 167 if (argc == 0) 168 ret = soelim_file(stdin, flags); 169 170 for (i = 0; i < argc; i++) 171 ret = soelim_file(soelim_fopen(argv[i]), flags); 172 173 sl_free(includes, 0); 174 175 return (ret); 176 } 177