/* List Directory based on cmdstr and pwdstr
* cmdstr command string to process
* pwdstr Present Working Directory string
*/
void rosh_ls(const char *cmdstr)
{
char filestr[ROSH_PATH_SZ];
char optstr[ROSH_OPT_SZ]; /* Options string */
int cmdpos, tpos; /* Position within cmdstr, temp position */
int numargs; /* number of non-option arguments */
int argpos; /* number of non-option arguments processed */
int optarr[3];
ROSH_DEBUG("CMD: '%s'\n", cmdstr);
/* Initialization */
filestr[0] = 0;
optstr[0] = 0;
cmdpos = 0;
numargs = 0;
argpos = 0;
/* skip the first word */
cmdpos = rosh_parse_sp_1(filestr, cmdstr, cmdpos);
tpos = rosh_parse_sp_1(filestr, cmdstr, cmdpos);
/* If there are no real arguments, substitute PWD */
if (strlen(filestr) == 0) {
strcpy(filestr, ".");
cmdpos = tpos;
} else { /* Parse for command line options */
while (strlen(filestr) > 0) {
numargs += rosh_ls_parse_opt(filestr, optstr);
tpos = rosh_parse_sp_1(filestr, cmdstr, tpos);
}
if (numargs == 0) {
strcpy(filestr, ".");
cmdpos = tpos;
} else {
cmdpos = rosh_parse_sp_1(filestr, cmdstr, cmdpos);
}
}
#ifdef DO_DEBUG
if (!strchr(optstr, 'l'))
strcat(optstr, "l");
#endif /* DO_DEBUG */
rosh_ls_arg_opt(optstr, optarr);
ROSH_DEBUG("\tfopt: '%s'\n", optstr);
while (strlen(filestr) > 0) {
if (rosh_ls_parse_opt(filestr, NULL)) {
rosh_ls_arg(filestr, optarr);
argpos++;
}
if (argpos < numargs)
cmdpos = rosh_parse_sp_1(filestr, cmdstr, cmdpos);
else
break;
}
} /* rosh_ls */
/* Concatenate multiple files to stdout
* cmdstr command string to process
*/
void rosh_cat(const char *cmdstr)
{
FILE *f;
char filestr[ROSH_PATH_SZ];
char buf[ROSH_BUF_SZ];
int numrd;
int cmdpos;
ROSH_DEBUG("CMD: '%s'\n", cmdstr);
/* 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);
errno = 0;
}
cmdpos = rosh_parse_sp_1(filestr, cmdstr, cmdpos);
}
} /* rosh_cat */
/* 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
* optarr Option Array
*/
void rosh_ls_arg(const char *filestr, const int *optarr)
{
struct stat fdstat;
int status;
// char filestr[ROSH_PATH_SZ];
// int filepos;
DIR *d;
struct dirent de;
/* Initialization; make filestr based on leading character of ifilstr
and pwdstr */
// rosh_qualify_filestr(filestr, ifilstr, pwdstr);
fdstat.st_mode = 0;
fdstat.st_size = 0;
ROSH_DEBUG("\topt[0]=%d\topt[1]=%d\topt[2]=%d\n", optarr[0], optarr[1],
optarr[2]);
/* Now, the real work */
errno = 0;
status = stat(filestr, &fdstat);
if (status == 0) {
if (S_ISDIR(fdstat.st_mode)) {
ROSH_DEBUG("PATH '%s' is a directory\n", filestr);
d = opendir(filestr);
rosh_ls_arg_dir(filestr, d, optarr);
closedir(d);
} else {
de.d_ino = rosh_ls_d_ino(&fdstat);
de.d_type = (IFTODT(fdstat.st_mode));
strcpy(de.d_name, filestr);
if (S_ISREG(fdstat.st_mode)) {
ROSH_DEBUG("PATH '%s' is a regular file\n", filestr);
} else {
ROSH_DEBUG("PATH '%s' is some other file\n", filestr);
}
rosh_ls_arg_dir_de(&de, optarr);
/* if (ifilstr[0] == SEP)
rosh_ls_arg_dir_de(NULL, &de, optarr);
else
rosh_ls_arg_dir_de(pwdstr, &de, optarr);*/
}
} else {
rosh_error(errno, "ls", filestr);
errno = 0;
}
return;
} /* rosh_ls_arg */
/* Page through a buffer string
* buf Buffer to page through
*/
void rosh_more_buf(char *buf, int buflen, int rows, int cols, char *scrbuf)
{
char *bufp, *bufeol, *bufeol2; /* Pointer to current and next
end-of-line position in buffer */
int bufpos, bufcnt; /* current position, count characters */
int inc;
int i, numln; /* Index, Number of lines */
int elpl; /* Extra lines per line read */
(void)cols;
bufpos = 0;
bufp = buf + bufpos;
bufeol = bufp;
numln = rows - 1;
ROSH_DEBUG("--(%d)\n", buflen);
while (bufpos < buflen) {
for (i = 0; i < numln; i++) {
bufeol2 = strchr(bufeol, '\n');
if (bufeol2 == NULL) {
bufeol = buf + buflen;
i = numln;
} else {
elpl = ((bufeol2 - bufeol - 1) / cols);
if (elpl < 0)
elpl = 0;
i += elpl;
ROSH_DEBUG2(" %d/%d ", elpl, i+1);
/* If this will not push too much, use it */
/* but if it's the first line, use it */
/* //HERE: We should probably snip the line off */
if ((i < numln) || (i == elpl))
bufeol = bufeol2 + 1;
}
}
ROSH_DEBUG2("\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;
}
}
} /* rosh_more_buf */
/* Page through a file like the more command
* cmdstr command string to process
* ipwdstr Initial PWD
*/
void rosh_more(const char *cmdstr)
{
int fd;
char filestr[ROSH_PATH_SZ];
int cmdpos;
int rows, cols;
ROSH_DEBUG("CMD: '%s'\n", cmdstr);
/* 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("\tUSE ROWS='%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);
errno = 0;
}
cmdpos = rosh_parse_sp_1(filestr, cmdstr, cmdpos);
}
rosh_console_std();
}
} /* rosh_more */
/* Output a single entry
* filestr directory name to list
* de directory entry
* optarr Array of options
*/
void rosh_ls_arg_dir_de(struct dirent *de, const int *optarr)
{
int de_size;
mode_t st_mode;
char st_mode_str[11];
st_mode = 0;
if (optarr[2] > -1)
printf("%10d ", (int)de->d_ino);
if (optarr[0] > -1) {
de_size = rosh_ls_de_size_mode(de, &st_mode);
rosh_st_mode2str(st_mode, st_mode_str);
ROSH_DEBUG2("%04X ", st_mode);
printf("%s %10d ", st_mode_str, de_size);
}
ROSH_DEBUG("'");
printf("%s", de->d_name);
ROSH_DEBUG("'");
if (optarr[1] > -1)
printf("%c", rosh_d_type2char_lssuf(de->d_type));
printf("\n");
} /* rosh_ls_arg_dir_de */
/* Parse options that may be present in the cmdstr
* filestr Possible option string to parse
* optstr Current options
* returns 1 if filestr does not begin with '-' else 0
*/
int rosh_ls_parse_opt(const char *filestr, char *optstr)
{
int ret;
if (filestr[0] == '-') {
ret = 0;
if (optstr)
strcat(optstr, filestr + 1);
} else {
ret = 1;
}
ROSH_DEBUG("ParseOpt: '%s'\n\topt: '%s'\n\tret: %d\n", filestr, optstr,
ret);
return ret;
} /* rosh_ls_parse_opt */
//HERE: minor pagination issue; sometimes prints 1 less than rows
void rosh_more_buf(char *buf, int buflen, int rows, int cols)
{
char *bufp, *bufeol, *bufeol2; /* 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 */
(void)cols;
bufpos = 0;
bufp = buf + bufpos;
bufeol = bufp;
numln = rows - 1;
ROSH_DEBUG("--(%d)\n", buflen);
while (bufpos < buflen) {
for (i = 0; i < numln; i++) {
bufeol2 = strchr(bufeol, '\n');
if (bufeol2 == NULL) {
bufeol = buf + buflen;
i = numln;
} else {
i += ((bufeol2 - bufeol) / cols);
bufeol = bufeol2 + 1;
}
}
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;
}
}
} /* rosh_more_buf */
/* Run a boot string, calling syslinux_run_command
* cmdstr command string to process
*/
void rosh_run(const char *cmdstr)
{
int cmdpos;
char *cmdptr;
cmdpos = 0;
ROSH_DEBUG("CMD: '%s'\n", cmdstr);
/* 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);
syslinux_run_command(cmdptr);
} /* rosh_run */
/* Output listing of a regular directory
* filestr directory name to list
* d the open DIR
* optarr Array of options
NOTE:This is where I could use qsort
*/
void rosh_ls_arg_dir(const char *filestr, DIR * d, const int *optarr)
{
struct dirent *de;
int filepos;
filepos = 0;
while ((de = readdir(d))) {
filepos++;
rosh_ls_arg_dir_de(de, optarr);
}
if (errno)
rosh_error(errno, "ls:arg_dir", filestr);
else if (filepos == 0)
ROSH_DEBUG("0 files found");
} /* rosh_ls_arg_dir */
/*
* Qualifies a filename relative to the working directory
* filestr Filename to qualify
* pwdstr working directory
* returns qualified file name string
*/
void rosh_qualify_filestr(char *filestr, const char *ifilstr,
const char *pwdstr)
{
int filepos = 0;
if ((filestr) && (pwdstr) && (ifilstr)) {
if (ifilstr[0] != SEP) {
strcpy(filestr, pwdstr);
filepos = strlen(pwdstr);
if (filestr[filepos - 1] != SEP)
filestr[filepos++] = SEP;
}
strcpy(filestr + filepos, ifilstr);
ROSH_DEBUG("--'%s'\n", filestr);
}
}
/* Show PWD
* cmdstr command string to process
*/
void rosh_pwd(const char *cmdstr)
{
int istr;
char pwdstr[ROSH_PATH_SZ];
if (cmdstr)
istr = 0;
ROSH_DEBUG("CMD: '%s'\n", cmdstr);
errno = 0;
if (getcwd(pwdstr, ROSH_PATH_SZ)) {
printf("%s\n", pwdstr);
} else {
rosh_error(errno, "pwd", "");
errno = 0;
}
istr = htonl(*(int *)pwdstr);
ROSH_DEBUG2(" --%08X\n", istr);
} /* rosh_pwd */
/* Process a single command string and call handling function
* cmdstr command string to process
* ipwdstr Initial Present Working Directory string
* returns Whether to exit prompt
*/
char rosh_command(const char *cmdstr, const char *ipwdstr)
{
char do_exit;
char tstr[ROSH_CMD_SZ];
int tlen;
do_exit = false;
ROSH_DEBUG("--cmd:'%s'\n", cmdstr);
tlen = rosh_parse_sp_1(tstr, cmdstr, 0);
switch (cmdstr[0]) {
case 'e':
case 'E':
case 'q':
case 'Q':
if ((strncasecmp("exit", tstr, tlen) == 0) ||
(strncasecmp("quit", tstr, tlen) == 0))
do_exit = true;
else
rosh_help(1, NULL);
break;
case 'c':
case 'C': /* run 'cd' 'cat' 'cfg' */
switch (cmdstr[1]) {
case 'a':
case 'A':
if (strncasecmp("cat", tstr, tlen) == 0)
rosh_cat(cmdstr);
else
rosh_help(1, NULL);
break;
case 'd':
case 'D':
if (strncasecmp("cd", tstr, tlen) == 0)
rosh_cd(cmdstr, ipwdstr);
else
rosh_help(1, NULL);
break;
case 'f':
case 'F':
if (strncasecmp("cfg", tstr, tlen) == 0)
rosh_cfg();
else
rosh_help(1, NULL);
break;
default:
rosh_help(1, NULL);
}
break;
case 'd':
case 'D': /* run 'dir' */
if (strncasecmp("dir", tstr, tlen) == 0)
rosh_dir(cmdstr);
else
rosh_help(1, NULL);
break;
case 'h':
case 'H':
case '?':
if ((strncasecmp("help", tstr, tlen) == 0) || (tlen == 1))
rosh_help(2, cmdstr);
else
rosh_help(1, NULL);
break;
case 'l':
case 'L': /* run 'ls' 'less' */
switch (cmdstr[1]) {
case 0:
case ' ':
case 's':
case 'S':
if (strncasecmp("ls", tstr, tlen) == 0)
rosh_ls(cmdstr);
else
rosh_help(1, NULL);
break;
case 'e':
case 'E':
if (strncasecmp("less", tstr, tlen) == 0)
rosh_less(cmdstr);
else
rosh_help(1, NULL);
break;
default:
rosh_help(1, NULL);
}
break;
case 'm':
case 'M':
switch (cmdstr[1]) {
case 'a':
case 'A':
if (strncasecmp("man", tstr, tlen) == 0)
rosh_help(2, cmdstr);
else
rosh_help(1, NULL);
break;
case 'o':
case 'O':
if (strncasecmp("more", tstr, tlen) == 0)
rosh_more(cmdstr);
else
rosh_help(1, NULL);
break;
default:
rosh_help(1, NULL);
}
break;
case 'p':
case 'P': /* run 'pwd' */
if (strncasecmp("pwd", tstr, tlen) == 0)
rosh_pwd(cmdstr);
else
rosh_help(1, NULL);
break;
case 'r':
case 'R': /* run 'run' */
switch (cmdstr[1]) {
case 0:
case ' ':
case 'e':
case 'E':
if (strncasecmp("reboot", tstr, tlen) == 0)
rosh_reboot();
else
rosh_help(1, NULL);
break;
case 'u':
case 'U':
if (strncasecmp("run", tstr, tlen) == 0)
rosh_run(cmdstr);
else
rosh_help(1, NULL);
break;
}
break;
case 'v':
case 'V':
if (strncasecmp("version", tstr, tlen) == 0)
rosh_version(1);
else
rosh_help(1, NULL);
break;
case 0:
case '\n':
break;
default:
rosh_help(1, NULL);
} /* switch(cmdstr[0]) */
return do_exit;
} /* rosh_command */
/* Simple directory listing; calls rosh_ls()
* cmdstr command string to process
* pwdstr Present Working Directory string
*/
void rosh_dir(const char *cmdstr)
{
ROSH_DEBUG(" dir implemented as ls\n");
rosh_ls(cmdstr);
} /* rosh_dir */
void print_beta(void)
{
puts(rosh_beta_str);
ROSH_DEBUG("DO_DEBUG active\n");
ROSH_DEBUG2("DO_DEBUG2 active\n");
}
