Initial commit with github.

.gitignore

@@ -0,0 +1,3 @@
+*.o
+*.a
+ctty

Makefile

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+CC = gcc
+CFLAGS = -std=gnu99 -Wall -Wextra -pedantic -O3
+AR = ar
+ARFLAGS = rcs
+RANLIB = ranlib
+
+
+all: libctty.a ctty
+
+libctty.a: libctty.c libctty.h
+	$(CC) $(CFLAGS) -c libctty.c
+	$(AR) $(ARFLAGS) libctty.a libctty.o
+	$(RANLIB) libctty.a
+
+ctty: libctty.o ctty.c
+	$(CC) $(CFLAGS) -L. -o ctty ctty.c -lctty
+
+clean: 
+	rm libctty.o libctty.a ctty

ctty.c

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+
+/**********************************************************************
+ *
+ *	ctty : 2013-03-20
+ *
+ *		emptymonkey's tool for mapping sessions by their controlling tty.
+ *              
+ *
+ *	Example use:
+ *
+ *		empty@monkey:~$ ctty /dev/pts/2
+ *		--------------------------------
+ *		TTY: /dev/pts/2
+ *		USER: empty
+ *		
+ *		SID  PGID  PID  FDs
+ *		---  ----  ---  ---
+ *		1263
+ *		     1263
+ *		           1263
+ *		                0
+ *		                1
+ *		                2
+ *		                255
+ *		     1790
+ *		           1790
+ *		                0
+ *		                1
+ *		                2
+ *		--------------------------------
+ *	
+ *
+ *	If run w/out an argument, it will attempt to return results for all ttys.
+ *	(This will probably fail for most ttys unless you are root.)
+ *
+ **********************************************************************/
+
+
+#include "libctty.h"
+
+void ctty_print_session(struct sid_node *session_list);
+
+#define MAX_INT_LEN 10
+
+
+int main(int argc, char **argv){
+	int i, retval;
+	struct sid_node *session_head = NULL, *session_tail = NULL, *session_tmp;	
+	glob_t pglob;
+
+
+	if(argc > 2){
+		error(-1, 0, "usage: %s [TTY_NAME]", program_invocation_short_name);
+	}
+
+	if(argc == 2){	
+		if((session_head = ctty_get_session(argv[1])) == NULL){
+			error(-1, errno, "ctty_get_session(%s)", argv[1]);
+		}
+	}else{
+		if((retval = glob("/dev/tty*", 0, NULL, &pglob))){
+			error(-1, errno, "glob(%s, %d, %p, %lx)", \
+					"/dev/tty*", 0, NULL, (unsigned long) &pglob);
+		}
+
+		if((retval = glob("/dev/pts/[0-9]*", GLOB_APPEND, NULL, &pglob))){
+			error(-1, errno, "glob(%s, %d, %p, %lx)", \
+					"/dev/pts/[0-9]*", 0, NULL, (unsigned long) &pglob);
+		}
+		for(i = 0; i < (int) pglob.gl_pathc; i++){
+			if(((session_tmp = ctty_get_session(pglob.gl_pathv[i])) == NULL) && (errno)){
+				error(-1, errno, "ctty_get_session(%s)", pglob.gl_pathv[i]);
+			}else if(session_tmp){
+
+				if(!session_head){
+					session_head = session_tmp;
+					session_tail = session_tmp;
+				}else{
+					session_tail->next = session_tmp;
+					session_tail = session_tmp;
+				}
+			}
+		}
+		globfree(&pglob);
+	}
+	ctty_print_session(session_head);
+
+	return(0);
+}
+
+
+void ctty_print_session(struct sid_node *session_list){
+	int i;
+
+	char uid[MAX_INT_LEN + 1];
+
+	struct sid_node *session;
+	struct pgid_node *pgroup;
+	struct pid_node *proc;
+
+	session = session_list;
+	while(session){
+
+		memset(uid, 0, MAX_INT_LEN + 1);
+		snprintf(uid, MAX_INT_LEN, "%d", session->uid);
+
+		printf("--------------------------------\n");
+		printf("TTY: %s\n", session->ctty);
+		printf("USER: %s\n\n", cuserid(uid));
+		printf("SID\tPGID\tPID\tFDs\n");
+		printf("---\t----\t---\t---\n");
+
+		printf("%d\n", session->sid);
+		pgroup = session->pgid_head;
+		while(pgroup){
+			printf("\t%d\n", pgroup->pgid);
+
+			proc = pgroup->pid_head;
+			while(proc){
+				printf("\t\t%d\n", proc->pid);
+
+				for(i = 0; i < proc->fd_count; i++){
+					printf("\t\t\t%d\n", proc->fds[i]);
+				}
+				proc = proc->next;
+			}
+
+			pgroup = pgroup->next;
+		}
+		session = session->next;
+	}
+	printf("--------------------------------\n");
+}