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