--- libaitcli/src/aitcli.c 2010/06/08 08:05:12 1.2.2.14 +++ libaitcli/src/aitcli.c 2012/07/22 22:36:21 1.4.2.2 @@ -3,9 +3,46 @@ * by Michael Pounov * * $Author: misho $ -* $Id: aitcli.c,v 1.2.2.14 2010/06/08 08:05:12 misho Exp $ +* $Id: aitcli.c,v 1.4.2.2 2012/07/22 22:36:21 misho Exp $ * -*************************************************************************/ +************************************************************************** +The ELWIX and AITNET software is distributed under the following +terms: + +All of the documentation and software included in the ELWIX and AITNET +Releases is copyrighted by ELWIX - Sofia/Bulgaria + +Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 + by Michael Pounov . All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions +are met: +1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. +2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. +3. All advertising materials mentioning features or use of this software + must display the following acknowledgement: +This product includes software developed by Michael Pounov +ELWIX - Embedded LightWeight unIX and its contributors. +4. Neither the name of AITNET nor the names of its contributors + may be used to endorse or promote products derived from this software + without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +SUCH DAMAGE. +*/ #include "global.h" #include "cli.h" @@ -374,12 +411,12 @@ bufComp(int idx, void * __restrict buffer) if (!buffer || idx < 0 || idx > MAX_BINDKEY) return RETCODE_ERR; - str = strdup(buf->line_buf); + str = io_strdup(buf->line_buf); if (!str) return RETCODE_ERR; else { s = str; - io_TrimStr((u_char*) s); + io_TrimStr(s); } i = j = 0; @@ -391,14 +428,17 @@ bufComp(int idx, void * __restrict buffer) *app ? i++ : i, *app ? app++ : app); if (i) { - SLIST_FOREACH(cmd, &buf->line_cmds, cmd_next) + SLIST_FOREACH(cmd, &buf->line_cmds, cmd_next) { if (cmd->cmd_level == buf->line_level && !strncmp(cmd->cmd_name, items[0], strlen(items[0]))) { - j++; - c = cmd; - strlcat(szLine, " ", STRSIZ); - strlcat(szLine, cmd->cmd_name, STRSIZ); + if (strncmp(cmd->cmd_name, CLI_CMD_SEP, strlen(CLI_CMD_SEP))) { + j++; + c = cmd; + strlcat(szLine, " ", STRSIZ); + strlcat(szLine, cmd->cmd_name, STRSIZ); + } } + } if (i > 1 && c) { /* we are on argument of command and has complition info */ @@ -414,10 +454,12 @@ bufComp(int idx, void * __restrict buffer) /* we on 0 position of prompt, show commands for this level */ SLIST_FOREACH(cmd, &buf->line_cmds, cmd_next) { if (cmd->cmd_level == buf->line_level) - j++; - c = cmd; - strlcat(szLine, " ", STRSIZ); - strlcat(szLine, cmd->cmd_name, STRSIZ); + if (strncmp(cmd->cmd_name, CLI_CMD_SEP, strlen(CLI_CMD_SEP))) { + j++; + c = cmd; + strlcat(szLine, " ", STRSIZ); + strlcat(szLine, cmd->cmd_name, STRSIZ); + } } } @@ -446,7 +488,7 @@ bufComp(int idx, void * __restrict buffer) } endcomp: - free(str); + io_free(str); return ret; } @@ -502,9 +544,10 @@ cli_Printf(linebuffer_t * __restrict buffer, char *fmt inline void cli_PrintHelp(linebuffer_t * __restrict buffer) { - if (buffer) + if (buffer) { bufHelp(0, buffer); - else + clrscrEOL(buffer); + } else cli_SetErr(EINVAL, "Error:: invalid input parameters ..."); } @@ -557,7 +600,7 @@ cli_addCommand(linebuffer_t * __restrict buffer, const return RETCODE_ERR; } - cmd = malloc(sizeof(struct tagCommand)); + cmd = io_malloc(sizeof(struct tagCommand)); if (!cmd) { LOGERR; return RETCODE_ERR; @@ -597,7 +640,7 @@ cli_delCommand(linebuffer_t * __restrict buffer, const if (cmd->cmd_level == cliLevel && !strcmp(cmd->cmd_name, csCmd)) { ret = 1; SLIST_REMOVE(&buffer->line_cmds, cmd, tagCommand, cmd_next); - free(cmd); + io_free(cmd); break; } @@ -660,7 +703,7 @@ cli_addHistory(linebuffer_t * __restrict buffer, const return RETCODE_ERR; } - if (!(h = malloc(sizeof(struct tagHistory)))) { + if (!(h = io_malloc(sizeof(struct tagHistory)))) { LOGERR; return RETCODE_ERR; } else @@ -668,19 +711,19 @@ cli_addHistory(linebuffer_t * __restrict buffer, const if (str) { if (!*str) { - free(h); + io_free(h); return RETCODE_OK; } h->hist_len = strlcpy(h->hist_line, str, BUFSIZ); } else { if (!*buffer->line_buf || buffer->line_len < 2) { - free(h); + io_free(h); return RETCODE_OK; } memcpy(h->hist_line, buffer->line_buf, (h->hist_len = buffer->line_len)); - io_TrimStr((u_char*) h->hist_line); + io_TrimStr(h->hist_line); h->hist_len = strlen(h->hist_line); } @@ -764,9 +807,9 @@ cli_loadHistory(linebuffer_t * __restrict buffer, cons if (!*buf || *buf == '#') continue; else - io_TrimStr((u_char*) buf); + io_TrimStr(buf); - if (!(h = malloc(sizeof(struct tagHistory)))) { + if (!(h = io_malloc(sizeof(struct tagHistory)))) { LOGERR; fclose(f); return RETCODE_ERR; @@ -806,9 +849,9 @@ cli_freeLine(linebuffer_t * __restrict buffer) if (buffer) { if (buffer->line_buf) - free(buffer->line_buf); + io_free(buffer->line_buf); - buffer->line_buf = malloc(BUFSIZ); + buffer->line_buf = io_malloc(BUFSIZ); if (buffer->line_buf) { memset(buffer->line_buf, 0, BUFSIZ); buffer->line_eol = buffer->line_bol; @@ -834,13 +877,13 @@ cli_setPrompt(linebuffer_t * __restrict buffer, const { if (buffer) { if (buffer->line_prompt) { - free(buffer->line_prompt); + io_free(buffer->line_prompt); buffer->line_prompt = NULL; buffer->line_bol = 0; } if (prompt) { - buffer->line_prompt = strdup(prompt); + buffer->line_prompt = io_strdup(prompt); if (buffer->line_prompt) { buffer->line_bol = strlen(buffer->line_prompt); buffer->line_eol = buffer->line_bol; @@ -867,22 +910,22 @@ cliEnd(linebuffer_t * __restrict buffer) if (buffer) { while ((c = SLIST_FIRST(&buffer->line_cmds))) { SLIST_REMOVE_HEAD(&buffer->line_cmds, cmd_next); - free(c); + io_free(c); } while ((h = TAILQ_FIRST(&buffer->line_history))) { TAILQ_REMOVE(&buffer->line_history, h, hist_next); - free(h); + io_free(h); } if (buffer->line_prompt) - free(buffer->line_prompt); + io_free(buffer->line_prompt); if (buffer->line_keys) - free(buffer->line_keys); + io_free(buffer->line_keys); if (buffer->line_buf) - free(buffer->line_buf); + io_free(buffer->line_buf); - free(buffer); + io_free(buffer); buffer = NULL; } else cli_SetErr(EINVAL, "Error:: invalid input parameters ..."); @@ -901,11 +944,9 @@ cliInit(int fin, int fout, const char *prompt) linebuffer_t *buffer; bindkey_t *keys; register int i; - struct termios t; - memset(&t, 0, sizeof t); /* init buffer */ - buffer = malloc(sizeof (linebuffer_t)); + buffer = io_malloc(sizeof(linebuffer_t)); if (!buffer) { LOGERR; return NULL; @@ -919,33 +960,33 @@ cliInit(int fin, int fout, const char *prompt) SLIST_INIT(&buffer->line_cmds); if (prompt) { - buffer->line_prompt = strdup(prompt); + buffer->line_prompt = io_strdup(prompt); if (!buffer->line_prompt) { LOGERR; - free(buffer); + io_free(buffer); return NULL; } else buffer->line_eol = buffer->line_bol = strlen(buffer->line_prompt); } } - buffer->line_buf = malloc(BUFSIZ); + buffer->line_buf = io_malloc(BUFSIZ); if (!buffer->line_buf) { LOGERR; if (buffer->line_prompt) - free(buffer->line_prompt); - free(buffer); + io_free(buffer->line_prompt); + io_free(buffer); return NULL; } else { memset(buffer->line_buf, 0, BUFSIZ); buffer->line_len = 1 + buffer->line_eol; } - keys = calloc(MAX_BINDKEY + 1, sizeof(bindkey_t)); + keys = io_calloc(MAX_BINDKEY + 1, sizeof(bindkey_t)); if (!keys) { LOGERR; if (buffer->line_prompt) - free(buffer->line_prompt); - free(buffer->line_buf); - free(buffer); + io_free(buffer->line_prompt); + io_free(buffer->line_buf); + io_free(buffer); return NULL; } else memset(keys, 0, sizeof(bindkey_t) * (MAX_BINDKEY + 1)); @@ -953,6 +994,7 @@ cliInit(int fin, int fout, const char *prompt) /* add helper functions */ cli_addCommand(buffer, "exit", 0, cli_Cmd_Exit, "exit ", "Exit from console"); cli_addCommand(buffer, "help", 0, cli_Cmd_Help, "help [command] ", "Help screen"); + cli_addCommand(buffer, "-------", 0, NULL, "-------------------------", NULL); /* fill key bindings */ // ascii chars & ctrl+chars @@ -1142,21 +1184,33 @@ cliInit(int fin, int fout, const char *prompt) memcpy(keys[i].key_ch, K_F12, keys[i].key_len); i++; + buffer->line_keys = keys; + return buffer; +} + +/* + * cliInitLine() Init CLI input line terminal + * @buffer = CLI buffer + * return: none +*/ +int +cliInitLine(linebuffer_t * __restrict buffer) +{ + struct termios t; + + memset(&t, 0, sizeof t); tcgetattr(buffer->line_in, &t); t.c_lflag &= ~(ICANON | ISIG | IEXTEN | ECHO | ECHOCTL | ECHOE | ECHOK | ECHOKE | ECHONL | ECHOPRT); t.c_iflag |= IGNBRK; t.c_cc[VMIN] = 1; t.c_cc[VTIME] = 0; - tcsetattr(buffer->line_in, TCSANOW, &t); - - buffer->line_keys = keys; - return buffer; + return tcsetattr(buffer->line_in, TCSANOW, &t); } /* * cliReadLine() Read line from opened CLI session * @buffer = CLI buffer - * return: NULL if error or !=NULL readed line, must be free after use! + * return: NULL if error or !=NULL readed line, must be io_free after use! */ char * cliReadLine(linebuffer_t * __restrict buffer) @@ -1190,7 +1244,7 @@ cliReadLine(linebuffer_t * __restrict buffer) } if (!readLen) { if (buffer->line_buf) - str = strdup(buffer->line_buf); + str = io_strdup(buffer->line_buf); else cli_SetErr(EPIPE, "Error:: unknown state ..."); return str; @@ -1222,7 +1276,7 @@ recheck: } if (code != RETCODE_ERR && code != RETCODE_EOF && buffer->line_buf) - str = strdup(buffer->line_buf); + str = io_strdup(buffer->line_buf); return str; } @@ -1232,53 +1286,47 @@ recheck: * @buffer = CLI buffer * @csHistFile = History file name * @sock = client socket - * @term = stdin termios - * @win = window size of tty * return: RETCODE_ERR error, RETCODE_OK ok */ int -cliNetLoop(linebuffer_t * __restrict buffer, const char *csHistFile, int sock, - struct termios *term, struct winsize *win) +cliNetLoop(linebuffer_t * __restrict buffer, const char *csHistFile, int sock) { u_char buf[BUFSIZ]; - int pty, r, s, alen, attrlen, flg, ret = 0; + int pid, stat, pty, r, s, alen, flg, attrlen = 0, ret = 0; fd_set fds; struct timeval tv = { DEFAULT_SOCK_TIMEOUT, 0 }; struct telnetAttrs *a, Attr[10]; - switch (forkpty(&pty, NULL, term, win)) { + switch ((pid = forkpty(&pty, NULL, NULL, NULL))) { case -1: LOGERR; return -1; case 0: - close(sock); - - if (buffer) - ret = cliLoop(buffer, csHistFile) < 0 ? 1 : 0; - else + if (!buffer) { cli_SetErr(EINVAL, "Error:: invalid input parameters ..."); + return -1; + } else + close(sock); - /* spawn Shell mode */ - /* - execl("/bin/tcsh", "tcsh", NULL); - */ + ret = cliLoop(buffer, csHistFile) < 0 ? 1 : 0; + cliEnd(buffer); - _exit(ret); + exit(ret); default: - /* spawn Shell mode */ - telnet_SetCmd(Attr + 0, DO, TELOPT_TTYPE); - telnet_SetCmd(Attr + 1, WILL, TELOPT_ECHO); - telnet_Set_SubOpt(Attr + 2, TELOPT_LFLOW, LFLOW_OFF, NULL, 0); - telnet_Set_SubOpt(Attr + 3, TELOPT_LFLOW, LFLOW_RESTART_XON, NULL, 0); - telnet_SetCmd(Attr + 4, DO, TELOPT_LINEMODE); - if ((ret = telnetSend(sock, Attr, 5, NULL, 0, 0)) == -1) { - cli_Errno = telnet_GetErrno(); - strlcpy(cli_Error, telnet_GetError(), STRSIZ); + cli_telnet_SetCmd(Attr + 0, DO, TELOPT_TTYPE); + cli_telnet_SetCmd(Attr + 1, WILL, TELOPT_ECHO); + cli_telnet_Set_SubOpt(Attr + 2, TELOPT_LFLOW, LFLOW_OFF, NULL, 0); + cli_telnet_Set_SubOpt(Attr + 3, TELOPT_LFLOW, LFLOW_RESTART_XON, NULL, 0); + cli_telnet_SetCmd(Attr + 4, DO, TELOPT_LINEMODE); + if ((ret = cli_telnetSend(sock, Attr, 5, NULL, 0, 0)) == -1) return -1; - } else + else flg = 0; while (42) { + if (waitpid(pid, &stat, WNOHANG)) + break; + FD_ZERO(&fds); FD_SET(sock, &fds); FD_SET(pty, &fds); @@ -1292,43 +1340,54 @@ cliNetLoop(linebuffer_t * __restrict buffer, const cha r = FD_ISSET(sock, &fds) ? sock : pty; s = FD_ISSET(sock, &fds) ? pty : sock; - if ((ret = telnetRecv(r, &a, &alen, buf, BUFSIZ)) < 0) { + if (FD_ISSET(sock, &fds)) { + memset(buf, 0, BUFSIZ); + if ((ret = cli_telnetRecv(sock, &a, &alen, buf, BUFSIZ)) < 0) { + if (a) + io_free(a); + + if (-2 == ret) + continue; + // EOF + if (-3 == ret) + shutdown(sock, SHUT_RD); + break; + } + attrlen = 0; + if (1 == flg && alen) { + cli_telnet_SetCmd(&Attr[attrlen++], DONT, TELOPT_SGA); + cli_telnet_SetCmd(&Attr[attrlen++], DO, TELOPT_ECHO); + } + if (2 == flg && alen) { + cli_telnet_SetCmd(&Attr[attrlen++], WILL, TELOPT_ECHO); + cli_telnet_Set_SubOpt(&Attr[attrlen++], TELOPT_LFLOW, + LFLOW_OFF, NULL, 0); + cli_telnet_Set_SubOpt(&Attr[attrlen++], TELOPT_LFLOW, + LFLOW_RESTART_XON, NULL, 0); + cli_telnet_SetCmd(&Attr[attrlen++], DONT, TELOPT_LINEMODE); + } if (a) - free(a); + io_free(a); - if (-2 == ret) - continue; - // EOF - if (-3 == ret) - shutdown(r, SHUT_RD); - else { - cli_Errno = telnet_GetErrno(); - strlcpy(cli_Error, telnet_GetError(), STRSIZ); + if ((ret = write(pty, buf, ret)) == -1) { + LOGERR; + break; } - break; } - attrlen = 0; - if (1 == flg && alen) { - telnet_SetCmd(&Attr[attrlen++], DONT, TELOPT_SGA); - telnet_SetCmd(&Attr[attrlen++], DO, TELOPT_ECHO); - } - if (2 == flg && alen) { - telnet_SetCmd(&Attr[attrlen++], WILL, TELOPT_ECHO); - telnet_Set_SubOpt(&Attr[attrlen++], TELOPT_LFLOW, - LFLOW_OFF, NULL, 0); - telnet_Set_SubOpt(&Attr[attrlen++], TELOPT_LFLOW, - LFLOW_RESTART_XON, NULL, 0); - telnet_SetCmd(&Attr[attrlen++], DONT, TELOPT_LINEMODE); - } - if (a) - free(a); - if ((ret = telnetSend(s, Attr, pty == s ? 0 : attrlen, buf, ret, 0)) == -1) { - cli_Errno = telnet_GetErrno(); - strlcpy(cli_Error, telnet_GetError(), STRSIZ); - break; - } else - flg++; + if (FD_ISSET(pty, &fds)) { + memset(buf, 0, BUFSIZ); + if ((ret = read(pty, buf, BUFSIZ)) == -1) { + LOGERR; + break; + } + + if ((ret = cli_telnetSend(sock, Attr, pty == s ? 0 : attrlen, + buf, ret, 0)) == -1) + break; + else + flg++; + } } close(pty); @@ -1352,6 +1411,7 @@ cliLoop(linebuffer_t * __restrict buffer, const char * struct tagCommand *cmd; /* --- main body of CLI --- */ + cliInitLine(buffer); if (cli_loadHistory(buffer, csHistFile) == RETCODE_ERR) return RETCODE_ERR; @@ -1364,9 +1424,9 @@ cliLoop(linebuffer_t * __restrict buffer, const char * } else cli_addHistory(buffer, NULL); // clear whitespaces - for (s = line; isspace(*s); s++); + for (s = line; isspace((int) *s); s++); if (*s) { - for (t = s + strlen(s) - 1; t > s && isspace(*t); t--); + for (t = s + strlen(s) - 1; t > s && isspace((int) *t); t--); *++t = 0; } @@ -1388,12 +1448,18 @@ cliLoop(linebuffer_t * __restrict buffer, const char * cli_Printf(buffer, "\nCommand '%s' not found!\n", items[0]); ret = -1; } else - ret = cmd->cmd_func(buffer, i, items); + if (cmd->cmd_func) { + cli_Printf(buffer, "\n"); + ret = cmd->cmd_func(buffer, i, items); + } else { + clrscrEOL(buffer); + printfCR(buffer, 1); + } } cli_freeLine(buffer); cli_resetHistory(buffer); - free(line); + io_free(line); } while (ret < 1); cli_saveHistory(buffer, csHistFile, HISTORY_LINES);