1 /* ----------------------------------------------------------------------- * 2 * 3 * Copyright 2008-2009 Gene Cumm - All Rights Reserved 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation, Inc., 53 Temple Place Ste 330, 8 * Boston MA 02111-1307, USA; either version 2 of the License, or 9 * (at your option) any later version; incorporated herein by reference. 10 * 11 * ----------------------------------------------------------------------- */ 12 13 /* 14 * rosh.h 15 * 16 * Read-Only shell; Header 17 */ 18 19 /* 20 * History 21 * b034 Improve debug functions to simpler code 22 * b021 Move much PreProcessing stuff to rosh.h 23 * b018 Create rosh_debug() macro 24 * b012 Version of rosh.c at time of creating this file. 25 */ 26 27 #ifndef ROSH_H 28 #define ROSH_H 29 30 #include <stdio.h> 31 #include <stdlib.h> 32 #include <stdbool.h> /* macro: true false */ 33 #include <string.h> /* strcpy() strlen() memcpy() strchr() */ 34 #include <sys/types.h> 35 #include <limits.h> 36 #include <sys/stat.h> /* fstat() */ 37 #include <fcntl.h> /* open(); open mode macros */ 38 #include <dirent.h> /* fdopendir() opendir() readdir() closedir() DIR */ 39 #include <unistd.h> /* getcwd() getopt() */ 40 #include <errno.h> /* errno; error macros */ 41 #include <netinet/in.h> /* For htonl/ntohl/htons/ntohs */ 42 #include <ctype.h> /* isspace() */ 43 44 #include <getkey.h> 45 #include <consoles.h> /* console_ansi_raw() console_ansi_std() */ 46 // #include <getopt.h> /* getopt_long() */ 47 48 #ifdef DO_DEBUG 49 # define ROSH_DEBUG printf 50 # define ROSH_DEBUG_ARGV_V rosh_pr_argv_v 51 /* define ROSH_DEBUG(f, ...) printf (f, ## __VA_ARGS__) */ 52 # ifdef DO_DEBUG2 53 # define ROSH_DEBUG2 printf 54 # define ROSH_DEBUG2_ARGV_V rosh_pr_argv_v 55 # else /* DO_DEBUG2 */ 56 /* This forces a format argument into the function call */ 57 # define ROSH_DEBUG2(f, ...) ((void)0) 58 # define ROSH_DEBUG2_ARGV_V(argc, argv) ((void)0) 59 # endif /* DO_DEBUG2 */ 60 #else /* DO_DEBUG */ 61 # define ROSH_DEBUG(f, ...) ((void)0) 62 # define ROSH_DEBUG_ARGV_V(argc, argv) ((void)0) 63 # define ROSH_DEBUG2(f, ...) ((void)0) 64 # define ROSH_DEBUG2_ARGV_V(argc, argv) ((void)0) 65 #endif /* DO_DEBUG */ 66 #define ROSH_DEBUG2_STAT(f, ...) ((void)0) 67 // #define ROSH_DEBUG2_STAT ROSH_DEBUG2 68 69 #ifdef __COM32__ 70 #define ROSH_IS_COM32 1 71 #include <console.h> /* openconsole() */ 72 #include <syslinux/config.h> /* Has info on the SYSLINUX variant */ 73 #include <syslinux/boot.h> /* syslinux_run_command() */ 74 #include <syslinux/reboot.h> 75 #define ROSH_COM32(f, ...) printf (f, ## __VA_ARGS__) 76 #define rosh_console_std() console_ansi_std() 77 #define rosh_console_raw() console_ansi_raw() 78 79 int stat(const char *pathname, struct stat *buf) 80 { 81 int fd, status, ret = -1; 82 DIR *d; 83 84 ROSH_DEBUG2_STAT("stat:opendir(%s) ", pathname); 85 d = opendir(pathname); 86 if (d != NULL) { 87 ROSH_DEBUG2_STAT("stat:closedir() "); 88 closedir(d); 89 ret = 0; 90 buf->st_mode = S_IFDIR | 0555; 91 buf->st_size = 0; 92 } else if ((errno == 0) || (errno == ENOENT) || (errno == ENOTDIR)) { 93 ROSH_DEBUG2_STAT("(%d)stat:open() ", errno); 94 fd = open(pathname, O_RDONLY); 95 if (fd != -1) { 96 ROSH_DEBUG2_STAT("(%d)stat:fstat() ", fd); 97 status = fstat(fd, buf); 98 (void)status; 99 ROSH_DEBUG2_STAT("stat:close() "); 100 close(fd); 101 ret = 0; 102 } 103 } 104 return ret; 105 } 106 107 int rosh_get_env_ver(char *dest, size_t n) 108 { 109 const struct syslinux_version *slv = syslinux_version(); 110 strncpy(dest, slv->version_string, n); 111 return 0; 112 } 113 114 #else 115 # include <termios.h> 116 # include <sys/ioctl.h> 117 # include <sys/utsname.h> 118 # define ROSH_IS_COM32 0 119 120 static inline char *syslinux_config_file(void) 121 { 122 return ""; 123 } 124 125 int rosh_get_env_ver(char *dest, size_t n) 126 { 127 int ret, len; 128 struct utsname env; 129 ret= uname(&env); 130 if (ret >= 0) { 131 strncpy(dest, env.sysname, n); 132 len = strlen(dest); 133 strncpy(dest + len, " ", (n - len)); 134 len = strlen(dest); 135 strncpy(dest + len, env.release, (n - len)); 136 } 137 return ret; 138 } 139 140 static inline int getscreensize(int fd, int *rows, int *cols) 141 { 142 char *str; 143 int rv; 144 struct winsize ws; 145 if (rows) 146 *rows = 0; 147 if (cols) 148 *cols = 0; 149 str = NULL; 150 if (fd == 1) { 151 ioctl(0, TIOCGWINSZ, &ws); 152 if (rows) 153 *rows = ws.ws_row; 154 if (cols) 155 *cols = ws.ws_col; 156 if (rows && !*rows) { 157 str = getenv("LINES"); 158 if (str) 159 *rows = atoi(str); 160 } 161 if (cols && !*cols) { 162 str = getenv("COLUMNS"); 163 if (str) 164 *cols = atoi(str); 165 } 166 } 167 if (!rows || !cols) 168 rv = -1; 169 else if (!*rows || !*cols) 170 rv = -2; 171 else 172 rv = 0; 173 return rv; 174 } 175 176 /* 177 * Switches console over to raw input mode. Allows get_key to get just 178 * 1 key sequence (without delay or display) 179 */ 180 void rosh_console_raw(void) 181 { 182 struct termios tio; 183 184 console_ansi_raw(); /* Allows get_key to get just 1 key sequence 185 (w/o delay or display */ 186 /* Deal with the changes that haven't been replicated to ansiraw.c */ 187 tcgetattr(0, &tio); 188 tio.c_iflag &= ~IGNCR; 189 tcsetattr(0, TCSAFLUSH, &tio); 190 } 191 192 /* 193 * Switches back to standard getline mode. 194 */ 195 void rosh_console_std(void) 196 { 197 struct termios tio; 198 199 console_ansi_std(); 200 tcgetattr(0, &tio); 201 tio.c_iflag |= ICRNL; 202 tio.c_iflag &= ~IGNCR; 203 tcsetattr(0, TCSANOW, &tio); 204 } 205 206 void syslinux_reboot(int warm) 207 { 208 printf("Test Reboot(%d)\n", warm); 209 } 210 211 #define ROSH_COM32(f, ...) ((void)0) 212 #define syslinux_run_command(f) ((void)0) 213 #endif /* __COM32__ */ 214 215 #define SEP '/' 216 217 /* Size of buffer string */ 218 #define ROSH_BUF_SZ 16384 219 /* Size of screen output buffer (80*40) //HERE */ 220 #define ROSH_SBUF_SZ ((80 + 2) * 40) 221 222 /* Size of command buffer string */ 223 #ifdef MAX_CMDLINE_LEN 224 # define ROSH_CMD_SZ MAX_CMDLINE_LEN 225 #elif COMMAND_LINE_SIZE 226 # define ROSH_CMD_SZ COMMAND_LINE_SIZE 227 #else 228 # define ROSH_CMD_SZ_LG2 12 229 # define ROSH_CMD_SZ (1 << ROSH_CMD_SZ_LG2) 230 #endif /* MAX_CMDLINE_LEN */ 231 232 /* Size of path buffer string */ 233 #ifdef PATH_MAX 234 # define ROSH_PATH_SZ PATH_MAX 235 #elif NAME_MAX 236 # define ROSH_PATH_SZ NAME_MAX 237 #elif FILENAME_MAX 238 # define ROSH_PATH_SZ FILENAME_MAX 239 #else 240 # define ROSH_PATH_SZ_LG2 8 241 # define ROSH_PATH_SZ (1 << ROSH_PATH_SZ_LG2) 242 #endif /* PATH_MAX */ 243 244 #define ROSH_OPT_SZ 8 245 246 const char rosh_beta_str[] = 247 " ROSH is currently beta. Constructive feedback is appreciated"; 248 249 const char rosh_cd_norun_str[] = 250 " -- cd (Change Directory) not implemented for use with run and exit.\n"; 251 252 const char rosh_help_cd_str[] = "cd Change directory\n\ 253 with no argument, return to original directory from entry to rosh\n\ 254 with one argument, change to that directory"; 255 256 const char rosh_help_ls_str[] = "ls List contents of current directory\n\ 257 -l Long format\n\ 258 -i Inode; print Inode of file\n\ 259 -F Classify; Add a 1-character suffix to classify files"; 260 261 const char rosh_help_str1[] = 262 "Commands: ? cat cd cfg dir exit help less ls man more pwd run quit ver"; 263 264 const char rosh_help_str2[] = 265 "Commands: (short generally non-ambiguous abreviations are also allowed)\n\ 266 h HELP\n ALSO ? help man\n ALSO help <command>\n\ 267 cat Concatenate file to console\n cat <file>\n\ 268 cd Change to directory <dir>\n cd <dir>\n\ 269 less Page a file with rewind\n\ 270 ls List contents of current directory\n ls <dir>\n\ 271 ALSO l dir\n\ 272 more Page a file\n\ 273 pwd display Present Working Directory\n\ 274 run Run a program/kernel with options\n\ 275 r Reboot (if COM32)\n Also reboot\n\ 276 exit Exit to previous environment\n ALSO quit"; 277 278 const char rosh_help_str_adv[] = "No additional help available for '%s'"; 279 280 const char rosh_ls_opt_str[] = "lFi"; 281 282 #endif /* Not ROSH_H */ 283
