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/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include <sys/param.h> 31 32 #define _WITH_GETLINE 33 #include <stdio.h> 34 #include <unistd.h> 35 #include <stdlib.h> 36 #include <stdbool.h> 37 #include <string.h> 38 #include <stringlist.h> 39 #include <err.h> 40 #include <ctype.h> 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[MAXPATHLEN]; 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) 85 { 86 char *line = NULL; 87 char *walk; 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 walk = line + 3; 100 while (isspace(*walk)) 101 walk++; 102 103 while (isspace(walk[strlen(walk) - 1])) 104 walk[strlen(walk) - 1] = '\0'; 105 if (soelim_file(soelim_fopen(walk)) == 1) { 106 free(line); 107 return (1); 108 } 109 } 110 111 free(line); 112 fclose(f); 113 114 return (0); 115 } 116 117 int 118 main(int argc, char **argv) 119 { 120 int ch, i; 121 int ret = 0; 122 123 includes = sl_init(); 124 if (includes == NULL) 125 err(EXIT_FAILURE, "sl_init()"); 126 127 while ((ch = getopt(argc, argv, "CrtvI:")) != -1) { 128 switch (ch) { 129 case 'C': 130 case 'r': 131 case 'v': 132 case 't': 133 /* stub compatibility with groff's soelim */ 134 break; 135 case 'I': 136 sl_add(includes, optarg); 137 break; 138 default: 139 sl_free(includes, 0); 140 usage(); 141 } 142 } 143 144 argc -= optind; 145 argv += optind; 146 147 if (argc == 0) 148 ret = soelim_file(stdin); 149 150 for (i = 0; i < argc; i++) 151 ret = soelim_file(soelim_fopen(argv[i])); 152 153 sl_free(includes, 0); 154 155 return (ret); 156 } 157