lib2,gitignore: correct wrong config, add loss files.

Author: holishing

.gitignore

@@ -1,5 +1,4 @@
 /wdbbs.conf
-*.c
 *.o
 *.a
 *.p

lib2/sys/args.c

@@ -0,0 +1,79 @@
+/*  initsetproctitle() 是從 sendmail 的 source code 裡面挖來的...
+ *  setproctitle() 我重寫過... countproctitle() 是寫好玩的...
+ *  試試看... 有毛病記得告訴我... :)
+ *                                      -- Beagle
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#define newstr(s)    strcpy(malloc(strlen(s) + 1), s)
+
+/*
+**  Pointers for setproctitle.
+**This allows "ps" listings to give more useful information.
+*/
+
+char            **Argv = NULL;          /* pointer to argument vector */
+char            *LastArgv = NULL;       /* end of argv */
+
+void initsetproctitle(argc, argv, envp)
+        int argc;
+        char **argv;
+        char **envp;
+{
+        register int i;
+        extern char **environ;
+
+        /*
+        **  Move the environment so setproctitle can use the space at
+        **  the top of memory.
+        */
+
+        for (i = 0; envp[i] != NULL; i++)
+                continue;
+        environ = (char **) malloc(sizeof (char *) * (i + 1));
+        for (i = 0; envp[i] != NULL; i++)
+                environ[i] = newstr(envp[i]);
+        environ[i] = NULL;
+
+        /*
+        **  Save start and extent of argv for setproctitle.
+        */
+
+        Argv = argv;
+        if (i > 0)
+                LastArgv = envp[i - 1] + strlen(envp[i - 1]);
+        else
+                LastArgv = argv[argc - 1] + strlen(argv[argc - 1]);
+}
+
+void setproctitle(const char* cmdline) {
+        char buf[256], *p;
+        int i;
+
+        strncpy(buf, cmdline, 256);
+        buf[255] = '\0';
+        i = strlen(buf);
+        if (i > LastArgv - Argv[0] - 2) {
+                i = LastArgv - Argv[0] - 2;
+        }
+        strcpy(Argv[0], buf);
+        p=&Argv[0][i];
+        while (p < LastArgv) *p++='\0';
+        Argv[1] = NULL;
+}
+
+void printpt(const char* format, ...) {
+    char buf[256];
+    va_list args;
+    va_start(args, format);
+    vsprintf(buf, format,args);
+    setproctitle(buf);
+    va_end(args);
+}
+
+int countproctitle() {
+  return (LastArgv - Argv[0] - 2);
+}
+

lib2/sys/sem.c

@@ -0,0 +1,41 @@
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/sem.h>
+
+/* ----------------------------------------------------- */
+/* semaphore : for critical section                      */
+/* ----------------------------------------------------- */
+
+#define SEM_FLG        0600    /* semaphore mode */
+
+
+void              /*  sem_init(BSEM_KEY,&ap_semid)  */
+sem_init(int semkey,int *semid)
+{
+#if defined ( __linux__ ) || defined ( __CYGWIN__ )
+  int semval = 1;
+#else  
+  union semun semval;  // 解決某些 OS 會把 1 認為是 int 之問題
+  semval.val = 1;
+#endif  
+
+  *semid = semget(semkey, 1, 0);
+  if (*semid == -1)
+  {
+    *semid = semget(semkey, 1, IPC_CREAT | SEM_FLG);
+//    if (*semid == -1)
+//      attach_err(semkey, "semget");
+    semctl(*semid, 0, SETVAL, semval);
+  }
+}
+
+void
+sem_lock(int op,int semid)   /*  sem_lock(SEM_LEAVE,ap_semid)  */
+{
+  struct sembuf sops;
+
+  sops.sem_num = 0;
+  sops.sem_flg = SEM_UNDO;
+  sops.sem_op = op;
+  semop(semid, &sops, 1);
+}

lib2/sys/shm.c

@@ -0,0 +1,37 @@
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+
+
+void *
+shm_new(shmkey, shmsize)
+  int shmkey, shmsize;
+{
+  void *shmptr;
+  int shmid;
+
+  shmid = shmget(shmkey, shmsize, 0);
+  if (shmid < 0)
+  {
+    shmid = shmget(shmkey, shmsize, IPC_CREAT | 0600);
+    if (shmid < 0)
+      exit(-1);
+  }
+  else
+  {
+    shmsize = 0;
+  }
+
+  shmptr = (void *) shmat(shmid, 0, 0);
+  if (shmptr == (void *) -1)
+    exit(-2);
+
+  if (shmsize)
+    memset(shmptr, 0, shmsize);
+
+  return shmptr;
+}
+