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Telnetsrv: TELNETSRV_CMDFLAG_PUSHINTPOOLQ cmds get fifo

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Previously, only the first out of multiple telnet commands with
TELNETSRV_CMDFLAG_PUSHINTPOOLQ option would get a pointer to the fifo
queue, which is fixed in this commit.

Further, add_telnetcmd() now checks whether TELNET_MAXCMD is reached,
and prints and error.

Reformatted/simplified the function.
This commit is contained in:
Arash Sahbafard
2022-08-26 13:44:26 +02:00
committed by laurent
parent e28fccc7fb
commit 25bd5fb915
1 changed files with 25 additions and 16 deletions
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common/utils/telnetsrv/telnetsrv.c
+25 -16
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@@ -845,33 +845,42 @@ int telnetsrv_autoinit(void) {
* function at init time. the telnet server is delivered with a set of commands which
* will be loaded or not depending on the telnet section of the config file
*/
int add_telnetcmd(char *modulename, telnetshell_vardef_t *var, telnetshell_cmddef_t *cmd) {
int i;
notifiedFIFO_t *afifo=NULL;
int add_telnetcmd(char *modulename, telnetshell_vardef_t *var, telnetshell_cmddef_t *cmd)
{
if( modulename == NULL || var == NULL || cmd == NULL) {
fprintf(stderr,"[TELNETSRV] Telnet server, add_telnetcmd: invalid parameters\n");
return -1;
}
int i;
for (i=0; i<TELNET_MAXCMD ; i++) {
if (telnetparams.CmdParsers[i].var == NULL) {
strncpy(telnetparams.CmdParsers[i].module,modulename,sizeof(telnetparams.CmdParsers[i].module)-1);
telnetparams.CmdParsers[i].cmd = cmd;
telnetparams.CmdParsers[i].var = var;
if (cmd->cmdflags & TELNETSRV_CMDFLAG_PUSHINTPOOLQ) {
if (afifo == NULL) {
afifo = malloc(sizeof(notifiedFIFO_t));
initNotifiedFIFO(afifo);
}
cmd->qptr = afifo;
}
cmdparser_t *CmdParser = &telnetparams.CmdParsers[i];
if (CmdParser->var == NULL) {
strncpy(CmdParser->module, modulename, sizeof(CmdParser->module) - 1);
CmdParser->cmd = cmd;
CmdParser->var = var;
printf("[TELNETSRV] Telnet server: module %i = %s added to shell\n",
i,telnetparams.CmdParsers[i].module);
i, CmdParser->module);
break;
}
}
if (i == TELNET_MAXCMD) {
fprintf(stderr, "[TELNETSRV] TELNET_MAXCMD reached, cannot add new module %s\n", modulename);
return -1;
}
notifiedFIFO_t *afifo = NULL;
for (int k = 0; cmd[k].cmdfunc != NULL ; k++) {
if (cmd[k].cmdflags & TELNETSRV_CMDFLAG_PUSHINTPOOLQ) {
if (afifo == NULL) {
afifo = malloc(sizeof(notifiedFIFO_t));
initNotifiedFIFO(afifo);
}
cmd[k].qptr = afifo;
}
}
return 0;
}