761 if (
l->mode[0] !=
'\0' && (strcmp(
l->mode,
"r") == 0))
767 else if (strcmp(
l->mode,
"w") == 0) mode =
"w";
768 else if (strcmp(
l->mode,
"fork") == 0) mode =
"fork";
769 else if (strcmp(
l->mode,
"tcp") == 0) mode =
"tcp";
770 else if (strcmp(
l->mode,
"connect") == 0) mode =
"connect";
779 if (
l->name[0] ==
'\0')
781 if (strcmp(mode,
"fork")==0)
794 if (pid == -1 && errno == EAGAIN)
807 sigemptyset(&sigint);
808 sigaddset(&sigint, SIGINT);
809 sigprocmask(SIG_BLOCK, &sigint,
NULL);
828 #ifdef HAVE_SIMPLEIPC 830 #endif // HAVE_SIMPLEIPC 831 si_close(pc[1]); si_close(cp[0]);
870 si_close(pc[0]); si_close(cp[1]);
882 Werror(
"fork failed (%d)",errno);
889 else if (strcmp(mode,
"tcp")==0)
891 int sockfd, newsockfd, portno, clilen;
892 struct sockaddr_in serv_addr, cli_addr;
893 sockfd = socket(AF_INET, SOCK_STREAM, 0);
896 WerrorS(
"ERROR opening socket");
901 memset((
char *) &serv_addr,0,
sizeof(serv_addr));
903 serv_addr.sin_family = AF_INET;
904 serv_addr.sin_addr.s_addr = INADDR_ANY;
908 serv_addr.sin_port = htons(portno);
911 WerrorS(
"ERROR on binding (no free port available?)");
917 while(bind(sockfd, (
struct sockaddr *) &serv_addr,
sizeof(serv_addr)) < 0);
920 newsockfd = si_accept(sockfd, (
struct sockaddr *) &cli_addr, (socklen_t *)&clilen);
928 PrintS(
"client accepted\n");
932 d->
f_write = fdopen(newsockfd,
"w");
939 Werror(
"invalid mode >>%s<< for ssi",mode);
949 if(strcmp(mode,
"tcp")==0)
951 int sockfd, newsockfd, portno, clilen;
952 struct sockaddr_in serv_addr, cli_addr;
953 sockfd = socket(AF_INET, SOCK_STREAM, 0);
956 WerrorS(
"ERROR opening socket");
961 memset((
char *) &serv_addr,0,
sizeof(serv_addr));
963 serv_addr.sin_family = AF_INET;
964 serv_addr.sin_addr.s_addr = INADDR_ANY;
968 serv_addr.sin_port = htons(portno);
971 WerrorS(
"ERROR on binding (no free port available?)");
976 while(bind(sockfd, (
struct sockaddr *) &serv_addr,
sizeof(serv_addr)) < 0);
979 char* cli_host = (
char*)
omAlloc(256);
980 char* path = (
char*)
omAlloc(1024);
981 int r = si_sscanf(
l->name,
"%255[^:]:%s",cli_host,path);
984 WerrorS(
"ERROR: no host specified");
993 WarnS(
"program not specified, using /usr/local/bin/Singular");
995 strcpy(path,
"/usr/local/bin/Singular");
997 char* ssh_command = (
char*)
omAlloc(256);
998 char* ser_host = (
char*)
omAlloc(64);
999 gethostname(ser_host,64);
1000 sprintf(ssh_command,
"ssh %s %s -q --batch --link=ssi --MPhost=%s --MPport=%d &",cli_host,path,ser_host,portno);
1008 clilen =
sizeof(cli_addr);
1009 newsockfd = si_accept(sockfd, (
struct sockaddr *) &cli_addr, (socklen_t *)&clilen);
1021 d->
f_write = fdopen(newsockfd,
"w");
1033 else if(strcmp(mode,
"connect")==0)
1035 char* host = (
char*)
omAlloc(256);
1037 struct sockaddr_in serv_addr;
1038 struct hostent *server;
1040 si_sscanf(
l->name,
"%255[^:]:%d",host,&portno);
1044 sockfd = socket(AF_INET, SOCK_STREAM, 0);
1045 if (sockfd < 0) {
WerrorS(
"ERROR opening socket");
return TRUE; }
1046 server = gethostbyname(host);
1048 memset((
char *) &serv_addr, 0,
sizeof(serv_addr));
1049 serv_addr.sin_family = AF_INET;
1050 memcpy((
char *)&serv_addr.sin_addr.s_addr,
1051 (
char *)server->h_addr,
1053 serv_addr.sin_port = htons(portno);
1054 if (si_connect(sockfd,(sockaddr*)&serv_addr,
sizeof(serv_addr)) < 0)
1055 {
Werror(
"ERROR connecting(errno=%d)",errno);
return TRUE; }
1059 d->
f_write=fdopen(sockfd,
"w");
1076 char *filename=
l->name;
1078 if(filename[0]==
'>')
1080 if (filename[1]==
'>')
1091 outfile=
myfopen(filename,mode);
1094 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,...)
#define SI_LINK_OPEN_P(l)