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 ((f = fopen(name, "r")) != NULL) 61 return (f); 62 63 if (*name == '/') { 64 warn("can't open '%s'", name); 65 return (NULL); 66 } 67 68 for (i = 0; i < includes->sl_cur; i++) { 69 snprintf(path, sizeof(path), "%s/%s", includes->sl_str[i], 70 name); 71 if ((f = fopen(path, "r")) != NULL) 72 return (f); 73 } 74 75 warn("can't open '%s'", name); 76 77 return (f); 78 } 79 80 static int 81 soelim_file(FILE *f) 82 { 83 char *line = NULL; 84 char *walk; 85 size_t linecap = 0; 86 ssize_t linelen; 87 88 if (f == NULL) 89 return (1); 90 91 while ((linelen = getline(&line, &linecap, f)) > 0) { 92 if (strncmp(line, ".so", 3) != 0) { 93 printf("%s", line); 94 continue; 95 } 96 walk = line + 3; 97 while (isspace(*walk)) 98 walk++; 99 100 while (isspace(walk[strlen(walk) - 1])) 101 walk[strlen(walk) - 1] = '\0'; 102 if (soelim_file(soelim_fopen(walk)) == 1) { 103 free(line); 104 return (1); 105 } 106 } 107 108 free(line); 109 fclose(f); 110 111 return (0); 112 } 113 114 int 115 main(int argc, char **argv) 116 { 117 int ch, i; 118 int ret = 0; 119 120 includes = sl_init(); 121 if (includes == NULL) 122 err(EXIT_FAILURE, "sl_init()"); 123 124 while ((ch = getopt(argc, argv, "CrtvI:")) != -1) { 125 switch (ch) { 126 case 'C': 127 case 'r': 128 case 'v': 129 case 't': 130 /* stub compatibility with groff's soelim */ 131 break; 132 case 'I': 133 sl_add(includes, optarg); 134 break; 135 default: 136 sl_free(includes, 0); 137 usage(); 138 } 139 } 140 141 argc -= optind; 142 argv += optind; 143 144 if (argc == 0) 145 ret = soelim_file(stdin); 146 147 for (i = 0; i < argc; i++) 148 ret = soelim_file(soelim_fopen(argv[i])); 149 150 sl_free(includes, 0); 151 152 return (ret); 153 } 154