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-rw-r--r--com32/rosh/rosh.c810
1 files changed, 810 insertions, 0 deletions
diff --git a/com32/rosh/rosh.c b/com32/rosh/rosh.c
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+++ b/com32/rosh/rosh.c
@@ -0,0 +1,810 @@
+/* ----------------------------------------------------------------------- *
+ *
+ * Copyright 2008 Gene Cumm - All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, Inc., 53 Temple Place Ste 330,
+ * Boston MA 02111-1307, USA; either version 2 of the License, or
+ * (at your option) any later version; incorporated herein by reference.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * rosh.c
+ *
+ * Read-Only shell; Simple shell system designed for SYSLINUX-derivitives.
+ * Provides minimal commands utilizing the console via stdout/stderr as the
+ * sole output devices. Designed to compile for Linux for testing/debugging.
+ */
+
+/*
+ * ToDos:
+ * Change functions to use pwdstr
+ * In rosh_run() Reparse cmdstr relative to pwdstr
+ */
+
+// #define DO_DEBUG 1
+ /* Uncomment the above line for debugging output; Comment to remove */
+// #define DO_DEBUG2 1
+ /* Uncomment the above line for super-debugging output; Must have regular debugging enabled; Comment to remove */
+
+#include "rosh.h"
+
+#define APP_LONGNAME "Read-Only Shell"
+#define APP_NAME "rosh"
+#define APP_AUTHOR "Gene Cumm"
+#define APP_YEAR "2008"
+#define APP_VER "beta-b032"
+
+void rosh_version()
+{
+ printf("%s v %s; (c) %s %s.\n", APP_LONGNAME, APP_VER, APP_YEAR, \
+ APP_AUTHOR);
+}
+
+void rosh_help(int type)
+{
+ rosh_version();
+ switch (type) {
+ case 2: puts(rosh_help_str2);
+ break;
+ case 1: default:
+ puts(rosh_help_str1);
+ }
+}
+
+/* Determine if a character is whitespace
+ * inc input character
+ * returns 0 if not whitespace
+ */
+int rosh_issp(char inc)
+{
+ int rv;
+ switch (inc){
+ case ' ': case '\t':
+ rv = 1; break;
+ default: rv = 0;
+ }
+ return rv;
+} /* ros_issp */
+
+/* Search a string for first non-space (' ') character, starting at ipos
+ * istr input string to parse
+ * ipos input position to start at
+ */
+int rosh_search_nonsp(const char *istr, const int ipos)
+{
+ int curpos;
+ char c;
+
+ curpos = ipos;
+ c = istr[curpos];
+ while (rosh_issp(c) && c != 0)
+ c = istr[++curpos];
+ return curpos;
+}
+
+/* Search a string for space (' '), returning the position of the next space
+ * or the '\0' at end of string
+ * istr input string to parse
+ * ipos input position to start at
+ */
+int rosh_search_sp(const char *istr, const int ipos)
+{
+ int curpos;
+ char c;
+
+ curpos = ipos;
+ c = istr[curpos];
+ while (!(rosh_issp(c)) && c != 0)
+ c = istr[++curpos];
+ return curpos;
+}
+
+/* Parse a string for the first non-space string, returning the end position
+ * from src
+ * dest string to contain the first non-space string
+ * src string to parse
+ * ipos Position to start in src
+ */
+int rosh_parse_sp_1(char *dest, const char *src, const int ipos)
+{
+ int bpos, epos; /* beginning and ending position of source string
+ to copy to destination string */
+
+ bpos = 0;
+ epos = 0;
+/* //HERE-error condition checking */
+ bpos = rosh_search_nonsp(src, ipos);
+ epos = rosh_search_sp(src, bpos);
+ if (epos > bpos) {
+ memcpy(dest, src + bpos, epos-bpos);
+ if (dest[epos - bpos] != 0)
+ dest[epos - bpos] = 0;
+ } else {
+ epos = strlen(src);
+ dest[0] = 0;
+ }
+ return epos;
+}
+
+/* Handle most/all errors
+ * ierrno Input Error number
+ * cmdstr Command being executed to cause error
+ * filestr File/parameter causing error
+ */
+void rosh_error(const int ierrno, const char *cmdstr, const char *filestr)
+{
+ printf("--ERROR: %s '%s': ", cmdstr, filestr);
+ switch (ierrno) {
+ case EACCES: printf("Access DENIED\n");
+ break;
+ case ENOENT: printf("not found\n");
+ /* SYSLinux-3.72 COM32 API returns this for a
+ directory or empty file */
+ ROSH_COM32(" (COM32) could be a directory or empty file\n");
+ break;
+ case ENOTDIR: printf("not a directory\n");
+ ROSH_COM32(" (COM32) could be directory\n");
+ break;
+ case ENOSYS: printf("not implemented");
+ break;
+ default: printf("returns error; errno=%d\n", ierrno);
+ }
+}
+
+/* Concatenate command line arguments into one string
+ * cmdstr Output command string
+ * argc Argument Count
+ * argv Argument Values
+ * barg Beginning Argument
+ */
+int rosh_argcat(char *cmdstr, const int argc, char *argv[], const int barg)
+{
+ int i, arglen, curpos; /* index, argument length, current position
+ in cmdstr */
+ curpos = 0;
+ cmdstr[0] = '\0'; /* Nullify string just to be sure */
+ for (i = barg; i < argc; i++) {
+ arglen = strlen(argv[i]);
+ /* Theoretically, this should never be met in SYSLINUX */
+ if ((curpos + arglen) > (ROSH_CMD_SZ - 1))
+ arglen = (ROSH_CMD_SZ - 1) - curpos;
+ memcpy(cmdstr + curpos, argv[i], arglen);
+ curpos += arglen;
+ if (curpos >= (ROSH_CMD_SZ - 1)) {
+ /* Hopefully, curpos should not be greater than
+ (ROSH_CMD_SZ - 1) */
+ /* Still need a '\0' at the last character */
+ cmdstr[(ROSH_CMD_SZ - 1)] = 0;
+ break; /* Escape out of the for() loop;
+ We can no longer process anything more */
+ } else {
+ cmdstr[curpos] = ' ';
+ curpos += 1;
+ cmdstr[curpos] = 0;
+ }
+ }
+ /* If there's a ' ' at the end, remove it. This is normal unless
+ the maximum length is met/exceeded. */
+ if (cmdstr[curpos - 1] == ' ')
+ cmdstr[--curpos] = 0;
+ return curpos;
+} /* rosh_argcat */
+
+/*
+ * Prints a lot of the data in a struct termios
+ */
+/*
+void rosh_print_tc(struct termios *tio)
+{
+ printf(" -- termios: ");
+ printf(".c_iflag=%04X ", tio->c_iflag);
+ printf(".c_oflag=%04X ", tio->c_oflag);
+ printf(".c_cflag=%04X ", tio->c_cflag);
+ printf(".c_lflag=%04X ", tio->c_lflag);
+ printf(".c_cc[VTIME]='%d' ", tio->c_cc[VTIME]);
+ printf(".c_cc[VMIN]='%d'", tio->c_cc[VMIN]);
+ printf("\n");
+}
+*/
+
+/*
+ * Switches console over to raw input mode. Allows get_key to get just
+ * 1 key sequence (without delay or display)
+ */
+void rosh_console_raw()
+{
+// struct termios itio, ntio;
+// tcgetattr(0, &itio);
+// rosh_print_tc(&itio);
+/* ntio = itio;
+ ntio.c_lflag &= ~(ICANON|ECHO);
+ tcsetattr(0, TCSAFLUSH, &ntio);*/
+ console_ansi_raw(); /* Allows get_key to get just 1 key sequence
+ (w/o delay or display */
+// tcgetattr(0, &ntio);
+// rosh_print_tc(&ntio);
+}
+
+/*
+ * Switches back to standard getline mode.
+ */
+void rosh_console_std()
+{
+// struct termios itio, ntio;
+ console_ansi_std();
+// tcsetattr(0, TCSANOW, &itio);
+}
+
+/*
+ * Attempts to get a single key from the console
+ * returns key pressed
+ */
+int rosh_getkey()
+{
+ int inc;
+
+ inc = KEY_NONE;
+// rosh_console_raw();
+ while (inc == KEY_NONE){
+ inc = get_key(stdin, 6000);
+ }
+// rosh_console_std();
+ return inc;
+} /* rosh_getkey */
+
+/* Template for command functions
+ * cmdstr command string to process
+ * pwdstr Present Working Directory string
+ * ipwdstr Initial PWD
+ */
+void rosh_1(const char *cmdstr, const char *pwdstr, const char *ipwdstr)
+{
+ ROSH_DEBUG("CMD: '%s'\npwd: '%s'\npwd: '%s'\n", cmdstr, pwdstr, \
+ ipwdstr);
+} /* rosh_1 */
+
+/* Concatenate multiple files to stdout
+ * cmdstr command string to process
+ * pwdstr Present Working Directory string
+ */
+void rosh_cat(const char *cmdstr, const char *pwdstr)
+{
+ FILE *f;
+ char filestr[ROSH_PATH_SZ + 1];
+ char buf[ROSH_BUF_SZ];
+ int numrd;
+ int cmdpos;
+
+ ROSH_DEBUG("CMD: '%s'\npwd: '%s'\n", cmdstr, pwdstr);
+ /* Initialization */
+ filestr[0] = 0;
+ cmdpos = 0;
+ /* skip the first word */
+ cmdpos = rosh_parse_sp_1(filestr, cmdstr, cmdpos);
+ cmdpos = rosh_parse_sp_1(filestr, cmdstr, cmdpos);
+ while (strlen(filestr) > 0) {
+ printf("--File = '%s'\n", filestr);
+ f = fopen(filestr, "r");
+ if (f != NULL) {
+ numrd = fread(buf, 1, ROSH_BUF_SZ, f);
+ while (numrd > 0) {
+ fwrite(buf, 1, numrd, stdout);
+ numrd = fread(buf, 1, ROSH_BUF_SZ, f);
+ }
+ fclose(f);
+ } else {
+ rosh_error(errno, "cat", filestr);
+ }
+ cmdpos = rosh_parse_sp_1(filestr, cmdstr, cmdpos);
+ }
+} /* rosh_cat */
+
+/* Change PWD (Present Working Directory)
+ * cmdstr command string to process
+ * pwdstr Present Working Directory string
+ * ipwdstr Initial PWD
+ */
+void rosh_cd(const char *cmdstr, char *pwdstr, const char *ipwdstr)
+{
+ int rv;
+ char filestr[ROSH_PATH_SZ + 1];
+ int cmdpos;
+ ROSH_DEBUG("CMD: '%s'\npwd: '%s'\n", cmdstr, pwdstr);
+ /* Initialization */
+ filestr[0] = 0;
+ cmdpos = 0;
+ rv = 0;
+ /* skip the first word */
+ cmdpos = rosh_parse_sp_1(filestr, cmdstr, cmdpos);
+ cmdpos = rosh_parse_sp_1(filestr, cmdstr, cmdpos);
+ ROSH_COM32(" -- cd (Change Directory) not implemented for use with run and exit.\n");
+ if (strlen(filestr) != 0)
+ rv = chdir(filestr);
+ else
+ rv = chdir(ipwdstr);
+ if (rv != 0) {
+ rosh_error(errno, "cd", filestr);
+ } else {
+ getcwd(pwdstr, ROSH_PATH_SZ + 1);
+ printf(" %s\n", pwdstr);
+ }
+} /* rosh_cd */
+
+/* Print the syslinux config file name
+ * cmdstr command string to process
+ * pwdstr Present Working Directory string
+ */
+void rosh_cfg(const char *cmdstr, const char *pwdstr)
+{
+ ROSH_DEBUG("CMD: '%s'\npwd: '%s'\n", cmdstr, pwdstr);
+ printf("CFG: '%s'\n", syslinux_config_file());
+} /* rosh_cfg */
+
+/* Simple directory listing for one argument (file/directory) based on
+ * filestr and pwdstr
+ * ifilstr input filename/directory name to list
+ * pwdstr Present Working Directory string
+ */
+void rosh_dir_arg(const char *ifilstr, const char *pwdstr)
+{
+ struct stat fdstat;
+ int status;
+ int fd;
+ char filestr[ROSH_PATH_SZ + 1];
+ int filepos;
+ DIR *d;
+ struct dirent *de;
+#ifdef DO_DEBUG
+ char filestr2[ROSH_PATH_SZ + 1];
+ int fd2, file2pos;
+#ifdef __COM32__
+// int inchar;
+ char ty;
+#endif /* __COM32__ */
+#endif /* DO_DEBUG */
+
+ /* Initialization; make filestr based on leading character of ifilstr
+ and pwdstr */
+ if (ifilstr[0] == SEP) {
+ strcpy(filestr, ifilstr);
+ } else {
+ strcpy(filestr, pwdstr);
+ filepos = strlen(pwdstr);
+ if (filestr[filepos-1] != SEP)
+ filestr[filepos++] = SEP;
+ strcpy(filestr + filepos, ifilstr);
+ROSH_DEBUG("--'%s'\n", filestr);
+ }
+ fd = open(filestr, O_RDONLY);
+ if (fd != -1) {
+ status = fstat(fd, &fdstat);
+ if (S_ISDIR(fdstat.st_mode)) {
+ ROSH_DEBUG("PATH '%s' is a directory\n", ifilstr);
+ d = fdopendir(fd);
+ de = readdir(d);
+ while (de != NULL) {
+#ifdef DO_DEBUG
+ filestr2[0] = 0;
+ file2pos = strlen(filestr);
+ memcpy(filestr2, filestr, file2pos);
+ filestr2[file2pos] = '/';
+ strcpy(filestr2+file2pos+1, de->d_name);
+ fd2 = open(filestr2, O_RDONLY);
+ status = fstat(fd2, &fdstat);
+ printf("@%8d:%8d:", (int)de->d_ino, (int)fdstat.st_size);
+ fd2 = close(fd2);
+#endif /* DO_DEBUG */
+ printf("%s\n", de->d_name);
+#ifdef DO_DEBUG
+// inchar = fgetc(stdin);
+#endif /* DO_DEBUG */
+ de = readdir(d);
+ }
+ closedir(d);
+ } else if (S_ISREG(fdstat.st_mode)) {
+ ROSH_DEBUG("PATH '%s' is a regular file\n", ifilstr);
+ printf("%8d:%s\n", (int)fdstat.st_size, ifilstr);
+ } else {
+ ROSH_DEBUG("PATH '%s' is some other file\n", ifilstr);
+ printf(" :%s\n", ifilstr);
+ }
+ } else {
+#ifdef __COM32__
+ if (filestr[strlen(filestr)-1] == SEP) {
+ /* Directory */
+ filepos = 0;
+ d = opendir(filestr);
+ if (d != NULL) {
+printf("DIR:'%s' %8d %8d\n", d->dd_name, d->dd_fd, d->dd_sect);
+ de = readdir(d);
+ while (de != NULL) {
+ filepos++;
+#ifdef DO_DEBUG
+// if (strlen(de->d_name) > 25) de->d_name[25] = 0;
+ switch (de->d_mode) {
+ case 16 : ty = 'D'; break;
+ case 32 : ty = 'F'; break;
+ default : ty = '*';
+ }
+ printf("@%8d:%8d:%4d ", (int)de->d_ino, (int)de->d_size, de->d_mode);
+#endif /* DO_DEBUG */
+// printf("%s\n", de->d_name);
+printf("'%s'\n", de->d_name);
+#ifdef DO_DEBUG
+// inchar = fgetc(stdin);
+// fgets(instr, ROSH_CMD_SZ, stdin);
+#endif /* DO_DEBUG */
+ free(de);
+ de = readdir(d);
+// if(filepos>15){ de = NULL; printf("Force Break\n");}
+ }
+printf("Dir.dd_fd: '%8d'\n", d->dd_fd);
+ closedir(d);
+ } else {
+ rosh_error(0, "dir:NULL", filestr);
+ }
+ } else {
+ rosh_error(errno, "dir_c32", filestr);
+ }
+#else
+ rosh_error(errno, "dir", filestr);
+#endif /* __COM32__ */
+ }
+} /* rosh_dir_arg */
+
+/* Simple directory listing based on cmdstr and pwdstr
+ * cmdstr command string to process
+ * pwdstr Present Working Directory string
+ */
+void rosh_dir(const char *cmdstr, const char *pwdstr)
+{
+ char filestr[ROSH_PATH_SZ + 1];
+ int cmdpos; /* Position within cmdstr */
+
+ ROSH_DEBUG("CMD: '%s'\npwd: '%s'\n", cmdstr, pwdstr);
+ /* Initialization */
+ filestr[0] = 0;
+ cmdpos = 0;
+ /* skip the first word */
+ cmdpos = rosh_parse_sp_1(filestr, cmdstr, cmdpos);
+ cmdpos = rosh_parse_sp_1(filestr, cmdstr, cmdpos);
+ /* If there are no real arguments, substitute PWD */
+ if (strlen(filestr) == 0)
+ strcpy(filestr, pwdstr);
+ while (strlen(filestr) > 0) {
+ rosh_dir_arg(filestr, pwdstr);
+ cmdpos = rosh_parse_sp_1(filestr, cmdstr, cmdpos);
+ }
+} /* rosh_dir */
+
+/* List Directory; Calls rosh_dir() for now.
+ * cmdstr command string to process
+ * pwdstr Present Working Directory string
+ */
+void rosh_ls(const char *cmdstr, const char *pwdstr)
+{
+ printf(" ls implemented as dir (for now)\n");
+ rosh_dir(cmdstr, pwdstr);
+} /* rosh_ls */
+
+/* Page through a buffer string
+ * buf Buffer to page through
+ */
+void rosh_more_buf(char *buf, int buflen, int rows, int cols)
+{
+ char *bufp, *bufeol; /* Pointer to current and next end-of-line
+ position in buffer */
+ int bufpos, bufcnt; /* current position, count characters */
+ char scrbuf[ROSH_SBUF_SZ];
+ int inc;
+ int i, numln; /* Index, Number of lines */
+
+ bufpos = 0;
+ bufp = buf + bufpos;
+ bufeol = bufp;
+ numln = rows - 1;
+printf("--(%d)\n", buflen);
+// printf("--termIOS CONSTS: ");
+// printf("ISIG=%08X ", ISIG);
+// printf("ICANON=%08X ", ICANON);
+// printf("ECHO=%08X ", ECHO);
+// printf("=%08X", );
+// printf("\n");
+ while (bufpos < buflen) {
+ for (i=0; i<numln; i++){
+ bufeol = strchr(bufeol, '\n');
+ if (bufeol == NULL) {
+ bufeol = buf + buflen;
+ i = numln;
+ } else {
+ bufeol++;
+ }
+// printf("--readln\n");
+ }
+ bufcnt = bufeol - bufp;
+printf("--(%d/%d @%d)\n", bufcnt, buflen, bufpos);
+ memcpy(scrbuf, bufp, bufcnt);
+ scrbuf[bufcnt] = 0;
+ printf("%s", scrbuf);
+ bufp = bufeol;
+ bufpos += bufcnt;
+ if (bufpos == buflen) break;
+ inc = rosh_getkey();
+ numln = 1;
+ switch (inc){
+ case KEY_CTRL('c'): case 'q': case 'Q':
+ bufpos = buflen; break;
+ case ' ':
+ numln = rows - 1;
+// default:
+ }
+ }
+/*tcgetattr(0, &tio);
+rosh_print_tc(&tio);
+printf("\n--END\n");*/
+} /* rosh_more_buf */
+
+/* Page through a single file using the open file stream
+ * fd File Descriptor
+ */
+void rosh_more_fd(int fd, int rows, int cols)
+{
+ struct stat fdstat;
+ int status;
+ char *buf;
+ int bufpos;
+ int numrd;
+ FILE *f;
+
+ status = fstat(fd, &fdstat);
+ if (S_ISREG(fdstat.st_mode)) {
+ buf = malloc((int)fdstat.st_size);
+ if (buf != NULL) {
+ f = fdopen(fd, "r");
+ bufpos = 0;
+ numrd = fread(buf, 1, (int)fdstat.st_size, f);
+ while (numrd > 0) {
+ bufpos += numrd;
+ numrd = fread(buf+bufpos, 1, \
+ ((int)fdstat.st_size - bufpos), f);
+ }
+ fclose(f);
+ rosh_more_buf(buf, bufpos, rows, cols);
+ }
+ } else {
+ }
+
+} /* rosh_more_fd */
+
+/* Page through a file like the more command
+ * cmdstr command string to process
+ * pwdstr Present Working Directory string
+ * ipwdstr Initial PWD
+ */
+void rosh_more(const char *cmdstr, const char *pwdstr)
+ /*, const char *ipwdstr)*/
+{
+ int fd;
+ char filestr[ROSH_PATH_SZ + 1];
+ int cmdpos;
+ int rows, cols;
+
+ ROSH_DEBUG("CMD: '%s'\npwd: '%s'\n", cmdstr, pwdstr);
+ /* Initialization */
+ filestr[0] = 0;
+ cmdpos = 0;
+ if (getscreensize(1, &rows, &cols)) {
+ ROSH_DEBUG("getscreensize() fail; fall back\n");
+ ROSH_DEBUG("\tROWS='%d'\tCOLS='%d'\n", rows, cols);
+ /* If either fail, go under normal size, just in case */
+ if (!rows)
+ rows = 20;
+ if (!cols)
+ cols = 75;
+ }
+ ROSH_DEBUG("\tROWS='%d'\tCOLS='%d'\n", rows, cols);
+
+ /* skip the first word */
+ cmdpos = rosh_parse_sp_1(filestr, cmdstr, cmdpos);
+ cmdpos = rosh_parse_sp_1(filestr, cmdstr, cmdpos);
+ if (strlen(filestr) > 0) {
+ /* There is no need to mess up the console if we don't have a
+ file */
+ rosh_console_raw();
+ while (strlen(filestr) > 0) {
+ printf("--File = '%s'\n", filestr);
+ fd = open(filestr, O_RDONLY);
+ if (fd != -1) {
+ rosh_more_fd(fd, rows, cols);
+ close(fd);
+ } else {
+ rosh_error(errno, "more", filestr);
+ }
+ cmdpos = rosh_parse_sp_1(filestr, cmdstr, cmdpos);
+ }
+ rosh_console_std();
+ }
+} /* rosh_more */
+
+/* Page a file with rewind
+ * cmdstr command string to process
+ * pwdstr Present Working Directory string
+ * ipwdstr Initial PWD
+ */
+void rosh_less(const char *cmdstr, const char *pwdstr)
+{
+ printf(" less implemented as more (for now)\n");
+ rosh_more(cmdstr, pwdstr);
+} /* rosh_less */
+
+/* Show PWD
+ * cmdstr command string to process
+ * pwdstr Present Working Directory string
+ */
+void rosh_pwd(const char *cmdstr, const char *pwdstr)
+{
+ int istr;
+ ROSH_DEBUG("CMD: '%s'\npwd: '%s'\n", cmdstr, pwdstr);
+ printf("%s\n", pwdstr);
+ istr = htonl(*(int*)pwdstr);
+ ROSH_DEBUG(" --%08X\n", istr);
+} /* rosh_pwd */
+
+/* Run a boot string, calling syslinux_run_command
+ * cmdstr command string to process
+ * pwdstr Present Working Directory string
+ * ipwdstr Initial PWD
+ */
+void rosh_run(const char *cmdstr, const char *pwdstr, const char *ipwdstr)
+{
+ int cmdpos;
+ char *cmdptr;
+ char istr[ROSH_CMD_SZ]; /* input command string */
+
+ cmdpos = 0;
+ ROSH_DEBUG("CMD: '%s'\npwd: '%s'\n", cmdstr, pwdstr);
+ /* skip the first word */
+ cmdpos = rosh_search_sp(cmdstr, cmdpos);
+ /* skip spaces */
+ cmdpos = rosh_search_nonsp(cmdstr, cmdpos);
+ cmdptr = (char *)(cmdstr + cmdpos);
+ printf("--run: '%s'\n", cmdptr);
+ /* //HERE--Reparse if pwdstr != ipwdstr; seems a little daunting as
+ detecting params vs filenames is difficult/impossible */
+ if (strcmp(pwdstr, ipwdstr) != 0) {
+ /* For now, just prompt for verification */
+ printf(" from directory '%s'? (y/N):", pwdstr);
+ fgets(istr, ROSH_CMD_SZ, stdin);
+ if ((istr[0] != 'y') && (istr[0] != 'Y')) {
+ printf("Aborting run\n");
+ return;
+ }
+ printf("Run anyways\n");
+ }
+ syslinux_run_command(cmdptr);
+} /* rosh_run */
+
+/* Process a single command string and call handling function
+ * cmdstr command string to process
+ * pwdstr Present Working Directory string
+ * ipwdstr Initial Present Working Directory string
+ * returns Whether to exit prompt
+ */
+char rosh_command(const char *cmdstr, char *pwdstr, const char *ipwdstr)
+{
+ char do_exit;
+ do_exit = false;
+ ROSH_DEBUG("--cmd:'%s'\n", cmdstr);
+ switch (cmdstr[0]) {
+ case 'e': case 'E': case 'q': case 'Q':
+ do_exit = true; break;
+ case 'c': case 'C': /* run 'cd' 'cat' 'cfg' */
+ switch (cmdstr[1]) {
+ case 'a': case 'A':
+ rosh_cat(cmdstr, pwdstr); break;
+ case 'd': case 'D':
+ rosh_cd(cmdstr, pwdstr, ipwdstr); break;
+ case 'f': case 'F':
+ rosh_cfg(cmdstr, pwdstr); break;
+ default: rosh_help(1);
+ }
+ break;
+ case 'd': case 'D': /* run 'dir' */
+ rosh_dir(cmdstr, pwdstr); break;
+ case 'h': case 'H': case '?': rosh_help(2);
+ break;
+ case 'l': case 'L': /* run 'ls' 'less' */
+ switch (cmdstr[1]) {
+ case 0: case 's': case 'S':
+ rosh_ls(cmdstr, pwdstr); break;
+ case 'e': case 'E':
+ rosh_less(cmdstr, pwdstr); break;
+ default: rosh_help(1);
+ }
+ break;
+ case 'm': case 'M':
+ switch (cmdstr[1]) {
+ case 'a': case 'A':
+ rosh_help(2);
+ break;
+ case 'o': case 'O':
+ rosh_more(cmdstr, pwdstr);
+ break;
+ default: rosh_help(1);
+ }
+ break;
+ case 'p': case 'P': /* run 'pwd' */
+ rosh_pwd(cmdstr, pwdstr); break;
+ case 'r': case 'R': /* run 'run' */
+ rosh_run(cmdstr, pwdstr, ipwdstr); break;
+ case 'v': case 'V':
+ rosh_version(); break;
+ case 0: case '\n': break;
+ default : rosh_help(1);
+ } /* switch(cmdstr[0]) */
+ return do_exit;
+} /* rosh_command */
+
+/* Process the prompt for commands as read from stdin and call rosh_command
+ * to process command line string
+ * icmdstr Initial command line string
+ * returns Exit status
+ */
+int rosh_prompt(const char *icmdstr)
+{
+ int rv;
+ char cmdstr[ROSH_CMD_SZ];
+ char pwdstr[ROSH_PATH_SZ + 1], ipwdstr[ROSH_PATH_SZ + 1];
+/* int numchar;
+*/ char do_exit;
+ char *c;
+
+ rv = 0;
+ do_exit = false;
+ strcpy(pwdstr, "/");
+ getcwd(pwdstr, ROSH_PATH_SZ + 1);
+ strcpy(ipwdstr, pwdstr); /* Retain the original PWD */
+ if (icmdstr[0] != '\0')
+ do_exit = rosh_command(icmdstr, pwdstr, ipwdstr);
+ while (!(do_exit)) {
+ console_ansi_std();
+ printf("\nrosh: ");
+ /* Read a line from console */
+ fgets(cmdstr, ROSH_CMD_SZ, stdin);
+ /* remove newline from input string */
+ c = strchr(cmdstr, '\n');
+ *c = 0;
+ do_exit = rosh_command(cmdstr, pwdstr, ipwdstr);
+ }
+ if (strcmp(pwdstr, ipwdstr) != 0) {
+ /* Change directory to the original directory */
+ strcpy(cmdstr, "cd ");
+ strcpy(cmdstr + 3, ipwdstr);
+ rosh_cd(cmdstr, pwdstr, ipwdstr);
+ }
+ return rv;
+}
+
+int main(int argc, char *argv[])
+{
+ int rv;
+ char cmdstr[ROSH_CMD_SZ];
+
+ /* Initialization */
+ rv = 0;
+ console_ansi_std();
+// console_ansi_raw();
+ if (argc != 1) {
+ rv = rosh_argcat(cmdstr, argc, argv, 1);
+ } else {
+ rosh_version();
+ cmdstr[0] = '\0';
+ }
+ rv = rosh_prompt(cmdstr);
+ printf("--Exiting '%s'\n", APP_NAME);
+ console_ansi_std();
+ return rv;
+}