853 if (
l->mode[0] !=
'\0' && (strcmp(
l->mode,
"r") == 0))
859 else if (strcmp(
l->mode,
"w") == 0) mode =
"w";
860 else if (strcmp(
l->mode,
"fork") == 0) mode =
"fork";
861 else if (strcmp(
l->mode,
"tcp") == 0) mode =
"tcp";
862 else if (strcmp(
l->mode,
"connect") == 0) mode =
"connect";
872 if (
l->name[0] ==
'\0')
874 if (strcmp(mode,
"fork")==0)
887 if (pid == -1 && errno == EAGAIN)
900 sigemptyset(&sigint);
901 sigaddset(&sigint, SIGINT);
902 sigprocmask(SIG_BLOCK, &sigint,
NULL);
920 #ifdef HAVE_SIMPLEIPC
923 si_close(pc[1]); si_close(cp[0]);
962 si_close(pc[0]); si_close(cp[1]);
974 Werror(
"fork failed (%d)",errno);
981 else if (strcmp(mode,
"tcp")==0)
983 int sockfd, newsockfd, portno, clilen;
984 struct sockaddr_in serv_addr, cli_addr;
985 sockfd = socket(AF_INET, SOCK_STREAM, 0);
988 WerrorS(
"ERROR opening socket");
993 memset((
char *) &serv_addr,0,
sizeof(serv_addr));
995 serv_addr.sin_family = AF_INET;
996 serv_addr.sin_addr.s_addr = INADDR_ANY;
1000 serv_addr.sin_port = htons(portno);
1003 WerrorS(
"ERROR on binding (no free port available?)");
1009 while(bind(sockfd, (
struct sockaddr *) &serv_addr,
sizeof(serv_addr)) < 0);
1012 newsockfd = si_accept(sockfd, (
struct sockaddr *) &cli_addr, (socklen_t *)&clilen);
1020 PrintS(
"client accepted\n");
1024 d->
f_write = fdopen(newsockfd,
"w");
1031 Werror(
"invalid mode >>%s<< for ssi",mode);
1041 if(strcmp(mode,
"tcp")==0)
1043 int sockfd, newsockfd, portno, clilen;
1044 struct sockaddr_in serv_addr, cli_addr;
1045 sockfd = socket(AF_INET, SOCK_STREAM, 0);
1048 WerrorS(
"ERROR opening socket");
1053 memset((
char *) &serv_addr,0,
sizeof(serv_addr));
1055 serv_addr.sin_family = AF_INET;
1056 serv_addr.sin_addr.s_addr = INADDR_ANY;
1060 serv_addr.sin_port = htons(portno);
1063 WerrorS(
"ERROR on binding (no free port available?)");
1068 while(bind(sockfd, (
struct sockaddr *) &serv_addr,
sizeof(serv_addr)) < 0);
1071 char* cli_host = (
char*)
omAlloc(256);
1072 char* path = (
char*)
omAlloc(1024);
1073 int r = si_sscanf(
l->name,
"%255[^:]:%s",cli_host,path);
1076 WerrorS(
"ERROR: no host specified");
1085 WarnS(
"program not specified, using /usr/local/bin/Singular");
1087 strcpy(path,
"/usr/local/bin/Singular");
1089 char* ssh_command = (
char*)
omAlloc(256);
1090 char* ser_host = (
char*)
omAlloc(64);
1091 gethostname(ser_host,64);
1092 sprintf(ssh_command,
"ssh %s %s -q --batch --link=ssi --MPhost=%s --MPport=%d &",cli_host,path,ser_host,portno);
1100 clilen =
sizeof(cli_addr);
1101 newsockfd = si_accept(sockfd, (
struct sockaddr *) &cli_addr, (socklen_t *)&clilen);
1113 d->
f_write = fdopen(newsockfd,
"w");
1125 else if(strcmp(mode,
"connect")==0)
1127 char* host = (
char*)
omAlloc(256);
1129 struct sockaddr_in serv_addr;
1130 struct hostent *server;
1132 si_sscanf(
l->name,
"%255[^:]:%d",host,&portno);
1136 sockfd = socket(AF_INET, SOCK_STREAM, 0);
1137 if (sockfd < 0) {
WerrorS(
"ERROR opening socket");
return TRUE; }
1138 server = gethostbyname(host);
1140 memset((
char *) &serv_addr, 0,
sizeof(serv_addr));
1141 serv_addr.sin_family = AF_INET;
1142 memcpy((
char *)&serv_addr.sin_addr.s_addr,
1143 (
char *)server->h_addr,
1145 serv_addr.sin_port = htons(portno);
1146 if (si_connect(sockfd,(sockaddr*)&serv_addr,
sizeof(serv_addr)) < 0)
1147 {
Werror(
"ERROR connecting(errno=%d)",errno);
return TRUE; }
1151 d->
f_write=fdopen(sockfd,
"w");
1168 char *filename=
l->name;
1170 if(filename[0]==
'>')
1172 if (filename[1]==
'>')
1183 outfile=
myfopen(filename,mode);
1186 if (strcmp(
l->mode,
"r")==0)
Class used for (list of) interpreter objects.
VAR BOOLEAN singular_in_batchmode
FILE * myfopen(const char *path, const char *mode)
VAR char my_yylinebuf[80]
char *(* fe_fgets_stdin)(const char *pr, char *s, int size)
char * fe_fgets_dummy(const char *, char *, int)
EXTERN_VAR omBin sleftv_bin
#define omFreeBin(addr, bin)
void PrintS(const char *s)
s_buff s_open_by_name(const char *n)
VAR int sem_acquired[SIPC_MAX_SEMAPHORES]
#define SI_LINK_SET_OPEN_P(l, flag)
#define SI_LINK_OPEN_P(l)
#define SIPC_MAX_SEMAPHORES