756 if (
l->mode[0] !=
'\0' && (strcmp(
l->mode,
"r") == 0))
762 else if (strcmp(
l->mode,
"w") == 0) mode =
"w";
763 else if (strcmp(
l->mode,
"fork") == 0) mode =
"fork";
764 else if (strcmp(
l->mode,
"tcp") == 0) mode =
"tcp";
765 else if (strcmp(
l->mode,
"connect") == 0) mode =
"connect";
774 if (
l->name[0] ==
'\0')
776 if (strcmp(mode,
"fork")==0)
789 if (pid == -1 && errno == EAGAIN)
802 sigemptyset(&sigint);
803 sigaddset(&sigint, SIGINT);
804 sigprocmask(SIG_BLOCK, &sigint,
NULL);
823 #ifdef HAVE_SIMPLEIPC 825 #endif // HAVE_SIMPLEIPC 826 si_close(pc[1]); si_close(cp[0]);
863 si_close(pc[0]); si_close(cp[1]);
875 Werror(
"fork failed (%d)",errno);
882 else if (strcmp(mode,
"tcp")==0)
884 int sockfd, newsockfd, portno, clilen;
885 struct sockaddr_in serv_addr, cli_addr;
886 sockfd = socket(AF_INET, SOCK_STREAM, 0);
889 WerrorS(
"ERROR opening socket");
894 memset((
char *) &serv_addr,0,
sizeof(serv_addr));
896 serv_addr.sin_family = AF_INET;
897 serv_addr.sin_addr.s_addr = INADDR_ANY;
901 serv_addr.sin_port = htons(portno);
904 WerrorS(
"ERROR on binding (no free port available?)");
910 while(bind(sockfd, (
struct sockaddr *) &serv_addr,
sizeof(serv_addr)) < 0);
913 newsockfd = si_accept(sockfd, (
struct sockaddr *) &cli_addr, (socklen_t *)&clilen);
921 PrintS(
"client accepted\n");
925 d->
f_write = fdopen(newsockfd,
"w");
932 Werror(
"invalid mode >>%s<< for ssi",mode);
942 if(strcmp(mode,
"tcp")==0)
944 int sockfd, newsockfd, portno, clilen;
945 struct sockaddr_in serv_addr, cli_addr;
946 sockfd = socket(AF_INET, SOCK_STREAM, 0);
949 WerrorS(
"ERROR opening socket");
954 memset((
char *) &serv_addr,0,
sizeof(serv_addr));
956 serv_addr.sin_family = AF_INET;
957 serv_addr.sin_addr.s_addr = INADDR_ANY;
961 serv_addr.sin_port = htons(portno);
964 WerrorS(
"ERROR on binding (no free port available?)");
969 while(bind(sockfd, (
struct sockaddr *) &serv_addr,
sizeof(serv_addr)) < 0);
972 char* cli_host = (
char*)
omAlloc(256);
973 char* path = (
char*)
omAlloc(1024);
974 int r = si_sscanf(
l->name,
"%255[^:]:%s",cli_host,path);
977 WerrorS(
"ERROR: no host specified");
986 WarnS(
"program not specified, using /usr/local/bin/Singular");
987 strcpy(path,
"/usr/local/bin/Singular");
989 char* ssh_command = (
char*)
omAlloc(256);
990 char* ser_host = (
char*)
omAlloc(64);
991 gethostname(ser_host,64);
992 sprintf(ssh_command,
"ssh %s %s -q --batch --link=ssi --MPhost=%s --MPport=%d &",cli_host,path,ser_host,portno);
1000 clilen =
sizeof(cli_addr);
1001 newsockfd = si_accept(sockfd, (
struct sockaddr *) &cli_addr, (socklen_t *)&clilen);
1013 d->
f_write = fdopen(newsockfd,
"w");
1025 else if(strcmp(mode,
"connect")==0)
1027 char* host = (
char*)
omAlloc(256);
1029 struct sockaddr_in serv_addr;
1030 struct hostent *server;
1032 si_sscanf(
l->name,
"%255[^:]:%d",host,&portno);
1036 sockfd = socket(AF_INET, SOCK_STREAM, 0);
1037 if (sockfd < 0) {
WerrorS(
"ERROR opening socket");
return TRUE; }
1038 server = gethostbyname(host);
1040 memset((
char *) &serv_addr, 0,
sizeof(serv_addr));
1041 serv_addr.sin_family = AF_INET;
1042 memcpy((
char *)&serv_addr.sin_addr.s_addr,
1043 (
char *)server->h_addr,
1045 serv_addr.sin_port = htons(portno);
1046 if (si_connect(sockfd,(sockaddr*)&serv_addr,
sizeof(serv_addr)) < 0)
1047 {
Werror(
"ERROR connecting(errno=%d)",errno);
return TRUE; }
1051 d->
f_write=fdopen(sockfd,
"w");
1068 char *filename=
l->name;
1070 if(filename[0]==
'>')
1072 if (filename[1]==
'>')
1083 outfile=
myfopen(filename,mode);
1086 if (strcmp(
l->mode,
"r")==0)
char *(* fe_fgets_stdin)(const char *pr, char *s, int size)
Class used for (list of) interpreter objects.
BOOLEAN ssiWrite(si_link l, leftv data)
#define omFreeSize(addr, size)
char * fe_fgets_dummy(const char *, char *, int)
void WerrorS(const char *s)
#define SI_LINK_SET_CLOSE_P(l)
#define SI_LINK_SET_OPEN_P(l, flag)
BOOLEAN singular_in_batchmode
FILE * myfopen(const char *path, const char *mode)
void PrintS(const char *s)
leftv ssiRead1(si_link l)
#define SI_LINK_SET_RW_OPEN_P(l)
#define SIPC_MAX_SEMAPHORES
void CleanUp(ring r=currRing)
#define omFreeBin(addr, bin)
int sem_acquired[SIPC_MAX_SEMAPHORES]
s_buff s_open_by_name(const char *n)
void Werror(const char *fmt,...)