liblist.c File Reference

#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <dirent.h>
#include <sys/stat.h>
#include <errno.h>
#include <stdlib.h>

Include dependency graph for liblist.c:

Go to the source code of this file.

Macros
#define	BUFSIZE   1000000
#define	TRIGSIZE   1000
#define	NLIBMAX   200

Functions
char **	parsedir (char *directory, int *argc)
int	main (int argc, char **argv)

Variables
char *	optarg
int	optind
int	opterr
int	optopt

Macro Definition Documentation

#define BUFSIZE   1000000

Definition at line 41 of file liblist.c.

#define NLIBMAX   200

Definition at line 43 of file liblist.c.

#define TRIGSIZE   1000

Definition at line 42 of file liblist.c.

Function Documentation

int main	(	int	argc,
		char **	argv
	)

Definition at line 127 of file liblist.c.

                                 {

  char static buffer[BUFSIZE],*bufferPtr,workbuf[256];
  char *ptr,*p,**pp,**pp1,**pp2,*directory=0,*libpath=0;
  char **rargv;
  char *libname=0;
  int i,optl=0,optm=0,swapping,c,rargc;
  FILE *fp;

#if defined ( _WIN32 ) || defined ( __CYGWIN__ ) || defined ( __CYGWIN32__ )
  char *ntg4tmp=0,*ntg4tmp1=0;
  int nti; 
#endif

  struct libmap_
    {
      char *lib;      /* Library name, e.g., G4run. */
      char *trigger;  /* Source directory, e.g., source/run/.  */
      int used;       /* True if used by these dependency files.  */
      char **uses;    /* List of library names which this library uses.  */
      struct libmap_ *next;
  };

  struct libmap_ *libmap=0,*libmapPtr=0,*libmapPtr1=0,*libmapPtr2=0,
    *prevPtr1,*prevPtr2,*tmpp,*userLibmapPtr;

  while((c=getopt(argc,argv,"ld: m:"))!=EOF)
    {
      switch(c)
    {
    case 'l':
      optl=1;
      break;
    case 'd':
      directory=strdup(optarg);
      break;
        case 'm':
          optm=1;
      libpath=strdup(optarg);
          break;
    }
    }
      
  /*Adjust parameters after parsing options */

  if(optind<argc)
    {
      rargv=&argv[optind];
      rargc=argc-optind;
    }
  else
    {
      rargv=0;
      rargc=0;
    }

  if(directory)
    {
      if(rargc==0)
    {
      rargv=parsedir(directory,&rargc);
    }
      else
    {
      fprintf
        (stderr,
         "  ERROR: If you specify a directory don't also specify files\n");
      exit(1);
    }
    }

  if(optl)fprintf(stderr,"  Reading library name map file...\n");
  while (!feof(stdin))
    {
      /* Get library name... */
      fgets(buffer,BUFSIZE,stdin);
      if(feof(stdin)) break;
      if (strlen(buffer) >= BUFSIZE-1)
      {
         fprintf(stderr,
       " Internal ERROR: BUFSIZE too small to read library name map file\n");
     exit(1);
      }
           /* discarded trailing \n, as gets() was doing */
      if ( buffer[strlen(buffer)-1] == '\n') 
        {   buffer[strlen(buffer)-1]='\0'; }  

      ptr=strtok(buffer,":\n");

      /* Check for duplicate names... */
      for(libmapPtr1=libmap;libmapPtr1;libmapPtr1=libmapPtr1->next)
    {
      if(strcmp(libmapPtr1->lib,ptr)==0)
        {
          fprintf(stderr,"  ERROR: Duplicate library name: %s\n",ptr);
          fprintf(stderr,
              "  Perhaps a duplicate subdirectory with"
              " a GNUmakefile with the same library name.\n"
              );
          exit(1);
        }
    }

      if(libmap)
    {
      libmapPtr->next=(struct libmap_*) malloc(sizeof(struct libmap_));
      libmapPtr=libmapPtr->next;
    }
      else /* First time through anchor libmapPtr to libmap. */
    {
      libmap=(struct libmap_*) malloc(sizeof(struct libmap_));
      libmapPtr=libmap;
    }
      libmapPtr->next=0;      
      libmapPtr->lib=strdup(ptr);
      libmapPtr->used=0;
      libmapPtr->uses=(char**)calloc(NLIBMAX,sizeof(char*));

      /* If option -l not specified, fill uses list... */
      if(!optl && !optm)
    {
      pp=libmapPtr->uses;
      if(ptr)
        {
          ptr=strtok(NULL," \n");
          while (ptr)
        {
          *pp=strdup(ptr);
          pp++;
          ptr=strtok(NULL," \n");
        }
        }
    }

      if(!optm)
        {
          /* Get directory name... */
          fgets(buffer,BUFSIZE,stdin);
      if (strlen(buffer) >= BUFSIZE-1)
      {
             fprintf(stderr,
           " Internal ERROR: BUFSIZE too small to read directory name\n");
         exit(1);
      }
           /* discarded trailing \n, as gets() was doing */
          if ( buffer[strlen(buffer)-1] == '\n') 
             {   buffer[strlen(buffer)-1]='\0'; }  

          ptr=strtok(buffer,"/");
          if(!ptr)
        {
          fprintf(stderr,"  ERROR: \"/\" before \"source\" expected.\n");
          exit(1);
        }
          while(ptr&&strcmp (ptr,"source"))ptr=strtok(NULL,"/");
          ptr=strtok(NULL,"/");
          if(!ptr)
        {
          fprintf(stderr,"  ERROR: \"source\" expected.\n");
          exit(1);
        }
          libmapPtr->trigger=(char*)malloc(TRIGSIZE);
      if(strlen(ptr)>TRIGSIZE)
          {
            fprintf(stderr,"  ERROR: String overflow for: %s\n", ptr);
            exit(1);
          }
          strcpy(libmapPtr->trigger,ptr);
          ptr=strtok(NULL,"/");
          while(ptr&&strcmp(ptr,"GNUmakefile"))
        {
          strncat(libmapPtr->trigger,"/",1);
          strncat(libmapPtr->trigger,ptr,strlen(ptr));
          ptr=strtok(NULL,"/");
        }
          if(!ptr)
        {
          fprintf
            (stderr,
             "  ERROR: \"source/<unique-sub-path>/GNUmakefile\" expected.\n");
          exit(1);
        }
    }
    }

  if(optl)fprintf(stderr,"  Reading dependency files...\n");

#if defined ( _WIN32 ) || defined ( __CYGWIN__ ) || defined ( __CYGWIN32__ )
      ntg4tmp=getenv("G4TMP");
      if ( ! ntg4tmp ) 
        {
           fprintf(stderr,"  ERROR: Cannot find environment variable G4TMP\n");
           exit(1);
        }
      ntg4tmp1=strdup(ntg4tmp);
#endif

  for(i=0;i<rargc;i++)
    {
      fp=fopen(rargv[i],"r");
      fgets(buffer,BUFSIZE,fp);

#if defined ( _WIN32 ) || defined ( __CYGWIN__ ) || defined ( __CYGWIN32__ )
      ptr=strchr(ntg4tmp1,':');

      while ( ptr=strchr(buffer,'\\') ) *ptr='/';
 
      while (ntg4tmp1!=NULL &&  (ptr=strstr(buffer,ntg4tmp1))!=NULL )
        {
          for(nti=0;nti<strlen(ntg4tmp1);nti++) ptr[nti]=' ';
        }
#endif
     
      /* Clip target out of dependency file... */
      ptr=strtok(buffer,":");
      
      /* Look for a "user" library... */
      for(libmapPtr=libmap;libmapPtr;libmapPtr=libmapPtr->next)
    {
      if(strlen(libmapPtr->lib)>256)
          {
            fprintf(stderr,"  ERROR: String overflow for: %s\n", libmapPtr->lib);
            exit(1);
          }
          strcpy(workbuf,libmapPtr->lib);
      /* Add trailing "/" to distinguish track/ and tracking/, etc. */
      strncat(workbuf,"/",1);
      if(strstr(ptr,workbuf)) break;
    }
      if(libmapPtr)
    {
      userLibmapPtr=libmapPtr;
    }
      else
    {
      userLibmapPtr=0;
    }

      if(!optm)
    {
      /* Look for a "used" library and add it to the "user" uses list... */
      bufferPtr=strtok(NULL,"\n");  /* Start *after* ":". */
      if (!bufferPtr) 
        {
          fprintf(stderr,"  WARNING: It seems there is nothing after \':\' in dependency file %s.\n", rargv[i]);
        }
      else {
      do
        {
          for(libmapPtr=libmap;libmapPtr;libmapPtr=libmapPtr->next)
            {
          /* Look for trigger string. */
              if(strlen(libmapPtr->trigger)>256)
                  {
                    fprintf(stderr,"  ERROR: String overflow for: %s\n", libmapPtr->trigger);
                    exit(1);
                  }
                  strcpy(workbuf,libmapPtr->trigger);
          strncat(workbuf,"/include",8);
          ptr=strstr(bufferPtr,workbuf);
          if(ptr && (userLibmapPtr != libmapPtr))
            {
              libmapPtr->used=1;
              if(userLibmapPtr)
                {
              for(pp=userLibmapPtr->uses;*pp;pp++)
                {
                  if(strcmp(*pp,libmapPtr->lib)==0)break;
                }
              if(!*pp)*pp=libmapPtr->lib;
                }
            }
          /* Also look for library name in case header files are
             placed in temporary directories under a subdirectory
             with the same name as the library name.  This can
             happen with Objectivity which makes header files
             from .ddl files and places them in a temporary
             directory. */
              if(strlen(libmapPtr->lib)>256)
                  {
                    fprintf(stderr,"  ERROR: String overflow for: %s\n", libmapPtr->lib);
                    exit(1);
                  }
          strcpy(workbuf,libmapPtr->lib);
          strncat(workbuf,"/",1);
          ptr=strstr(bufferPtr,workbuf);
          if(ptr && (userLibmapPtr != libmapPtr))
            {
              libmapPtr->used=1;
              if(userLibmapPtr)
                {
              for(pp=userLibmapPtr->uses;*pp;pp++)
                {
                  if(strcmp(*pp,libmapPtr->lib)==0)break;
                }
              if(!*pp)*pp=libmapPtr->lib;
                }
            }
            }
          fgets(buffer,BUFSIZE,fp);
          bufferPtr=buffer;

#if defined ( _WIN32 ) || defined ( __CYGWIN__ ) || defined ( __CYGWIN32__ )
          while ( ptr=strchr(buffer,'\\') ) *ptr='/';

          while (ntg4tmp1 &&  (ptr=strstr(buffer,ntg4tmp1)) )
            {
          for(nti=0;nti<strlen(ntg4tmp1);nti++) ptr[nti]=' ';
            }
#endif

        } while(!feof(fp));
      fclose(fp);
        }
      }
    }

#if defined ( _WIN32 ) || defined ( __CYGWIN__ ) || defined ( __CYGWIN32__ )
      free(ntg4tmp1);
#endif

  if(optl) /* This option is used for compiling the file libname.map
          from all the dependencies. */
    {
      fprintf(stderr,"  Checking for circular dependencies...\n");
      for(libmapPtr=libmap;libmapPtr;libmapPtr=libmapPtr->next)
    {
      for(pp=libmapPtr->uses;*pp;pp++)
        {
          for(libmapPtr1=libmap;libmapPtr1!=libmapPtr;
          libmapPtr1=libmapPtr1->next)
        {
          if(strcmp(libmapPtr1->lib,*pp)==0)
            {
              for(pp1=libmapPtr1->uses;*pp1;pp1++)
            {
              if(strcmp(*pp1,libmapPtr->lib)==0)break;
            }
              if(*pp1)
            {
              fprintf
                (stderr,
                 "  WARNING: %s and %s use each other.\n",
                 libmapPtr->lib,
                 libmapPtr1->lib);
            }
            }
          else 
            {
              /* Not right yet...
              for(pp1=libmapPtr1->uses;*pp1;pp1++)
            {
              for(libmapPtr0=libmap;libmapPtr0!=libmapPtr1;
                  libmapPtr0=libmapPtr0->next)
                {
                  if(libmapPtr0==*pp)
                {
                  fprintf
                    (stderr,
                     "  WARNING: triangular dependecy:\n"
                     "  %s uses %s uses %s uses %s.\n",
                     libmapPtr->lib,
                     libmapPtr1->lib,
                     libmapPtr0->lib,
                     libmapPtr->lib);
                }
                }
            }
              */
            }
        }
        }
    }

      fprintf(stderr,"  Reordering according to dependencies...\n");
      do
    {
      swapping=0;
      prevPtr2=0;
      for(libmapPtr=libmap;libmapPtr;libmapPtr=libmapPtr->next)
        {
          for(pp=libmapPtr->uses;*pp;pp++)
        {
          prevPtr1=0;
          for(libmapPtr1=libmap;libmapPtr1!=libmapPtr;
              libmapPtr1=libmapPtr1->next)
            {
              if(strcmp(libmapPtr1->lib,*pp)==0)
            {
              /* Check that 1st doesn't use 2nd... */
              for(pp1=libmapPtr1->uses;*pp1;pp1++)
                {
                  if(strcmp(*pp1,libmapPtr->lib)==0)break;
                }
              if(!*pp1) /* If not... */
                {
                  swapping=1;
                  /* Make previous of 1st now point to 2nd... */
                  if(prevPtr1)
                {
                  prevPtr1->next=libmapPtr;
                }
                  else
                {
                  libmap=libmapPtr;
                }
                  /* Make 2nd now point to what 1st did, unless
                 it's adjacent, in which case make it point
                 to 1st itself... */
                  tmpp=libmapPtr->next;
                  if(libmapPtr1->next==libmapPtr)
                {
                  libmapPtr->next=libmapPtr1;
                }
                  else
                {
                  libmapPtr->next=libmapPtr1->next;
                }
                  /* Make previous of 2nd point to 1st, unless
                 it's adjacent, in which case leave it... */
                  if(libmapPtr1->next!=libmapPtr)
                {
                  prevPtr2->next=libmapPtr1;
                }
                  /* Make 1st now point to what 2nd did... */
                  libmapPtr1->next=tmpp;
                  break;
                }
            }
              prevPtr1=libmapPtr1;
            }
          if(swapping)break;
        }
          prevPtr2=libmapPtr;
          if(swapping)break;
        }
    }while(swapping);

      fprintf(stderr,"  Writing new library map file...\n");
      for(libmapPtr=libmap;libmapPtr;libmapPtr=libmapPtr->next)
    {
      printf("%s:",libmapPtr->lib);
      for(pp=libmapPtr->uses;*pp;pp++)
        {
          printf(" %s",*pp);
        }
      printf("\n");
      printf("source/%s/GNUmakefile\n",libmapPtr->trigger);
    }
    }
  else if (optm)
    {
      /* create tmp. string libname */ 
      int libname_usable_size=24;
      if ( ! libname ) libname=malloc(libname_usable_size+16);

      /* Write out full library list... */      
      for(libmapPtr=libmap;libmapPtr;libmapPtr=libmapPtr->next)
      {
    if ( strlen(libpath)+strlen(libmapPtr->lib) > libname_usable_size ) {
      libname_usable_size=(strlen(libpath)+strlen(libmapPtr->lib))*2;
      free(libname);
      libname=malloc(libname_usable_size+16);
    }
        /* Check existance of libraries and print out only installed ones */
      
    
    sprintf(libname, "%s/lib%s.a", libpath, libmapPtr->lib);
        if (access(libname,R_OK))
    {
      sprintf(libname, "%s/lib%s.so", libpath, libmapPtr->lib);
          if (!access(libname,R_OK))
      {
            printf("-l%s ",libmapPtr->lib);
      }
          else  /* case MacOS .dylib */
          {
        sprintf(libname, "%s/lib%s.dylib", libpath, libmapPtr->lib);
            if (!access(libname,R_OK))
        {
              printf("-l%s ",libmapPtr->lib);
        }
          }
    }
        else
    {
          printf("-l%s ",libmapPtr->lib);
    }
    libmapPtr=libmapPtr->next;
      }
    }
  else
    {
      /* Add dependent libraries... */
      for(libmapPtr=libmap;libmapPtr;libmapPtr=libmapPtr->next)
    {
      if(libmapPtr->used)
        {
          for(pp=libmapPtr->uses;*pp;pp++)
        {
          for(libmapPtr1=libmap;libmapPtr1;libmapPtr1=libmapPtr1->next)
            {
              if(strcmp(libmapPtr1->lib,*pp)==0)
            {
              libmapPtr1->used=1;
            }
            }
        }         
        }
    }

      /* Write out library list... */
      for(libmapPtr=libmap;libmapPtr;libmapPtr=libmapPtr->next)
    {
      if(libmapPtr->used)
        {
          printf("-l%s ",libmapPtr->lib);
        }
    }
    }
      
  exit(0);
  
}

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char** parsedir	(	char *	directory,
		int *	argc
	)

Definition at line 48 of file liblist.c.

{
  DIR *actualdir;
  FILE *actualfile;
  struct dirent *entry; 
  char *buffer=0;
  struct stat status;
  char **targv=0,**ptr,**phelp;
  int len,targc,s;

  /*Open the actual directory*/
  actualdir=opendir(directory);

  if(!actualdir) return targv;

  /*Loop over all entries */
  for(entry=readdir(actualdir);entry!=NULL;entry=readdir(actualdir))
    {
      /* Throw away . and .. */
      if(strcmp(entry->d_name,".")==0 ||
     strcmp(entry->d_name,"..")==0) continue;
      /* Obtain the status information of that entry */
      if(buffer) free(buffer);
      buffer=(char*) malloc((strlen(directory)+
                 strlen(entry->d_name)+2)*sizeof(char));
      strcpy(buffer,directory);
      strncat(buffer,"/",1);
      strncat(buffer,entry->d_name,strlen(entry->d_name));
      s=stat(buffer,&status);
      if(s==0)
    {
      if(S_ISDIR(status.st_mode))
        {
          /* a directory, so we are going recursive*/
          targc=0;
          ptr=parsedir(buffer,&targc);
          if(targc)
        {
          phelp=targv;
          targv=(char**) malloc((*argc+targc)*sizeof(char*));
          memcpy(targv,phelp,*argc*sizeof(char*));
          memcpy(&targv[*argc],ptr,targc*sizeof(char*));
          *argc+=targc;
          free(phelp);
          free(ptr);
        }
        }
      else if(S_ISREG(status.st_mode))
        {
          /* a regular file is it .d? */
          len=strlen(entry->d_name);
          if(entry->d_name[len-2]=='.' && entry->d_name[len-1]=='d')
        {
          phelp=targv;
          targv=(char**) malloc((*argc+1)*sizeof(char*));
          memcpy(targv,phelp,*argc*sizeof(char*));
          targv[*argc]=strdup(buffer);
          (*argc)++;
          free(phelp);
        }
        }
    }
      else
    {
      fprintf
        (stderr,
         "  No status - perhaps file %s does not exist.\n",
         directory);
      exit(1);
    }
    }

  if(buffer) free(buffer);
  closedir(actualdir);

  return targv;
}

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Variable Documentation

char* optarg

int opterr

int optind

int optopt