diff options
Diffstat (limited to '')
| -rw-r--r-- | daemon/daemon_aux.c | 121 |
1 files changed, 117 insertions, 4 deletions
diff --git a/daemon/daemon_aux.c b/daemon/daemon_aux.c index ce47f37..00841de 100644 --- a/daemon/daemon_aux.c +++ b/daemon/daemon_aux.c @@ -23,10 +23,25 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.* #if 1 #undef __DBG #endif + +#define __DBG_2 +#if 1 +#undef __DBG_2 +#endif + +#define CLEAN_UP() \ + do{\ + fclose(log_file);\ + fclose(mutator_config);\ + close(client_sock);\ + close(socket_desc);\ + }\ + while(0) /**********************************************************************************************************************/ /*inclusion directive*/ #include "daemon_aux.h" /*standard headers*/ +#include <errno.h> #include <stdio.h> #include <stdlib.h> #include <string.h> @@ -59,6 +74,7 @@ bool cleanser(char cleansee[]) return (cleansee_health && nullterminated); } + /**********************************************************************************************************************/ int mutator_server(FILE* log_file) { @@ -67,9 +83,14 @@ int mutator_server(FILE* log_file) char client_message[2000]; FILE* clientistream; + FILE* mutator_config; char runresponse[4000]; - char NOOUT[]="command did not return any output. could be an error or not.\n"; - char BADOUT[]="what are you exactly trying to do?"; + const char NOOUT[]="command did not return any output. could be an error or not.\n"; + const char BADOUT[]="what are you exactly trying to do?"; + const char STD_OUT[]="stdout returned:\n"; + const char EMPTY_CONFIG[]="error: empty config file.\n"; + const char NFOUND_CONFIG[]="error: cant find config file in the default path.\n"; + const char SERVER_TERM[]="server terminated.\n"; /*create socket*/ socket_desc = socket(AF_INET, SOCK_STREAM, 0); @@ -89,6 +110,7 @@ int mutator_server(FILE* log_file) /*Bind*/ if (bind(socket_desc, (struct sockaddr*)&server, sizeof(server)) < 0) { + close(socket_desc); perror("bind failed.error.\n"); return 1; } @@ -120,18 +142,104 @@ int mutator_server(FILE* log_file) fprintf(log_file, "%s", "got command from client.\n"); + mutator_config = fopen("/home/bloodstalker/devi/hell2/daemon/mutator.config", "r"); + + if (mutator_config == NULL) + { + write(client_sock, NFOUND_CONFIG, strlen(NFOUND_CONFIG)); + write(client_sock, SERVER_TERM, strlen(SERVER_TERM)); + fprintf(log_file, "%s", NFOUND_CONFIG); + fprintf(log_file, "%s%d%s", "fopen returned: ", errno, "\n"); + fprintf(log_file, "%s", SERVER_TERM); + + fclose(log_file); + close(client_sock); + close(socket_desc); + + return errno; + } + + char configline[100]; + const char delimiter[2]="="; + char* token_var; + const char mutator_home_var[]="MUTATOR_HOME"; + const char driver_name[] = "/mutator.sh "; + char* full_command; + char* temp; + char* dummy; + + /*checking for an empty config-file. could also mean the config file was not found.*/ + if(fgets(configline,sizeof(configline), mutator_config) == NULL) + { + write(client_sock, EMPTY_CONFIG, strlen(EMPTY_CONFIG)); + write(client_sock, SERVER_TERM, strlen(SERVER_TERM)); + fprintf(log_file, "%s", EMPTY_CONFIG); + fprintf(log_file, "%s", SERVER_TERM); + CLEAN_UP(); + /*@DEVI-return SIGPIPE*/ + return 141; + } + + rewind(mutator_config); + + while (fgets(configline,sizeof(configline), mutator_config) != NULL) + { + temp = strstr(configline, mutator_home_var); + + if (temp != NULL) + { + memmove(temp, configline + strlen(mutator_home_var) + 1, strlen(configline) - strlen(mutator_home_var) - 1); + + break; + } + } + + /*@DEVI-null-terminating temp*/ + temp[strlen(temp) - strlen(mutator_home_var) - 2] = '\0'; + /*@DEVI-checks whether the line-break char was also sent.if yes, then removes it.*/ + if (client_message[read_size - 1] == '\n') + { + client_message[read_size - 1] = '\0'; + } + + full_command = malloc(strlen(temp) + read_size + strlen(driver_name) + 1); + + strcpy(full_command,temp); + strcat(full_command, driver_name); + /*@DEVI-client_message is not null-terminated but strcat takes care of that.*/ + strcat(full_command, client_message); + +#if defined(__DBG_2) + fprintf(log_file, "%s%s%s", "temp is: ", temp, "\n"); + fprintf(log_file, "%s%s%s", "driver_name is: ",driver_name, "\n"); +#endif + fprintf(log_file, "%s%s%s", "full_command is: ", full_command, "\n"); + if (cleanser(client_message) == true) { +#ifndef __DBG + clientistream = popen(full_command, "r"); +#endif + +#if defined(__DBG) /*open pipe, run command*/ clientistream = popen(client_message, "r"); + //clientistream = popen(full_command, "r"); +#endif } else { fprintf(log_file, "%s", "what are you trying to do exactly?"); write(client_sock, BADOUT, strlen(BADOUT)); + free(full_command); + fclose(mutator_config); continue; } + fprintf(log_file, "%s", "freeing memory reserved for command.\n"); + free(full_command); + fclose(mutator_config); + if (clientistream == NULL) { perror("client command did not run successfully."); @@ -146,16 +254,21 @@ int mutator_server(FILE* log_file) if (fgets(runresponse, sizeof(runresponse), clientistream) == NULL) { /*say there was nothing on stdout to send.*/ + fprintf(log_file, "%s", "command returned no stdout.\n"); write(client_sock, NOOUT, strlen(NOOUT)); } + else + { + fprintf(log_file, "%s", "command returned stdout.\n"); + write(client_sock, STD_OUT, strlen(STD_OUT)); + } rewind(clientistream); while (fgets(runresponse, sizeof(runresponse), clientistream) != NULL) { #if defined(__DBG) - fscanf(log_file, "%s", "command stdout:"); - fscanf(log_file, "%s", runresponse); + fprintf(log_file, "%s", "command stdout:\n"); #endif write(client_sock, runresponse, strlen(runresponse)); fprintf(log_file, "%s", runresponse); |