4.3BSD - /usr/src/new/spms/src/bin/prmdir/prmdir.c

   1: static char *rcsid = "$Header$";
   2: /*
   3:  * prmdir - remove a project directory
   4:  *
   5:  * Author: Peter J. Nicklin
   6:  */
   7: #include <sys/param.h>
   8: #include <signal.h>
   9: #include <stdio.h>
  10: #include "getarg.h"
  11: #include "macro.h"
  12: #include "null.h"
  13: #include "path.h"
  14: #include "pdb.h"
  15: #include "pld.h"
  16: #include "slist.h"
  17: #include "spms.h"
  18: #include "system.h"
  19: #include "yesno.h"
  20: 
  21: char CWD[PATHSIZE];         /* current working directory */
  22: char *CWP;              /* current working project */
  23: char *RMFLAG = "";          /* rm "-f" flag */
  24: char *PGN = "prmdir";           /* program name */
  25: int RECURSIVE = 0;          /* remove project dirs recursively */
  26: int UNDEFINE = 0;           /* remove proj dir definitions only */
  27: int WANT_TO_EXIT = 0;           /* advisory exit flag */
  28: 
  29: main(argc, argv)
  30:     int argc;
  31:     char **argv;
  32: {
  33:     extern int PPDEBUG;     /* project pathname debug flag */
  34:     char *getcwp();         /* get current working project */
  35:     char *getwd();          /* get current working directory */
  36:     int isfg();         /* is process in foreground? */
  37:     int onintr();           /* process signals */
  38:     int rmpdir();           /* remove a project directory */
  39:     int rmtyp();            /* remove project dir type labels */
  40:     int unpdir();           /* undefine project directory */
  41:     int status = 0;         /* exit status */
  42:     int xppath();           /* expand project pathname */
  43:     PATH pathbuf;           /* pathname struct buffer */
  44:     SLIST *pdirtyp;         /* project directory type labels list */
  45:     SLIST *slinit();        /* initialize singly-linked list */
  46:     void typargtolist();        /* type labels -> pdirtyp list */
  47: 
  48:     pdirtyp = slinit();
  49:     {
  50:     register char *s;       /* option pointer */
  51:     while (--argc > 0 && **++argv == '-')
  52:         {
  53:         for (s = argv[0]+1; *s != '\0'; s++)
  54:             switch (*s)
  55:                 {
  56:                 case 'D':
  57:                     PPDEBUG = YES;
  58:                     break;
  59:                 case 'T':
  60:                     typargtolist(GETARG(s), pdirtyp);
  61:                     if (*s == '\0')
  62:                         status = 1;
  63:                     goto endfor;
  64:                 case 'f':
  65:                     RMFLAG = "-f";
  66:                     break;
  67:                 case 'r':
  68:                     RECURSIVE++;
  69:                     break;
  70:                 case 'u':
  71:                     UNDEFINE++;
  72:                     break;
  73:                 default:
  74:                     warn("bad option -%c", *s);
  75:                     status = 1;
  76:                     goto endfor;
  77:                 }
  78:         endfor: continue;
  79:         }
  80:     }
  81:     if (status == 1 || argc < 1)
  82:         fatal("usage: prmdir [-fru] [-T type[,type...]] pdirname ...");
  83: 
  84:     if ((CWP = getcwp()) == NULL)
  85:         fatal("no project environment");
  86:     if (getwd(CWD) == NULL)
  87:         fatal("can't find current working directory");
  88:     if (isfg() == YES)
  89:         {
  90:         signal(SIGHUP, onintr);
  91:         signal(SIGINT, onintr);
  92:         signal(SIGQUIT, onintr);
  93:         }
  94: 
  95:     for (; argc > 0; ++argv, --argc)
  96:         {
  97:         if (xppath(*argv, &pathbuf) == -1)
  98:             {
  99:             patherr(*argv);
 100:             status = 1;
 101:             continue;
 102:             }
 103:         switch (pathbuf.p_mode & P_IFMT)
 104:             {
 105:             case P_IFPDIR:
 106:                 if (SLNUM(pdirtyp) > 0)
 107:                     status |= rmtyp(*argv, pdirtyp, &pathbuf);
 108:                 else if (UNDEFINE)
 109:                     status |= unpdir(&pathbuf);
 110:                 else
 111:                     status |= rmpdir(*argv, &pathbuf);
 112:                 break;
 113:             case P_IFHOME:
 114:             case P_IFPROOT:
 115:                 warn("%s is a project root directory", *argv);
 116:                 status = 1;
 117:                 break;
 118:             case P_IFNEW:
 119:             case P_IFREG:
 120:                 warn("%s: no such project directory", *argv);
 121:                 status = 1;
 122:                 break;
 123:             }
 124:         if (WANT_TO_EXIT)
 125:             exit(1);
 126:         }
 127:     exit(status);
 128: }
 129: 
 130: 
 131: 
 132: /*
 133:  * onintr() resets interrupt, quit, and hangup signals, and sets a flag
 134:  * which advises the process to exit at the first opportunity.
 135:  */
 136: onintr()
 137: {
 138:     signal(SIGINT, onintr);
 139:     signal(SIGQUIT, onintr);
 140:     signal(SIGHUP, onintr);
 141: 
 142:     WANT_TO_EXIT = 1;
 143: }
 144: 
 145: 
 146: 
 147: /*
 148:  * pbrmtyp() removes type labels from database buffer.
 149:  */
 150: void
 151: pbrmtyp(ppathname, typlist)
 152:     char *ppathname;        /* project pathname */
 153:     SLIST *typlist;         /* type labels list */
 154: {
 155:     char *pbgetstring();        /* get specified string field */
 156:     char *pdtfind();        /* find type label in buffer */
 157:     char *slget();          /* get next key from list */
 158:     char *tp;           /* pointer to type label */
 159:     char typbuf[TYPBUFSIZE];    /* project directory types buffer */
 160:     int pbaddstring();      /* add string field */
 161:     int strlen();           /* string length */
 162:     void slrewind();        /* rewind list */
 163:     void pdtrm();           /* remove type label */
 164: 
 165:     pbgetstring(PDIRTYPE, typbuf);
 166:     slrewind(typlist);
 167:     while ((tp = slget(typlist)) != NULL)
 168:         {
 169:         if (pdtfind(tp, typbuf) != NULL)
 170:             pdtrm(tp, typbuf);
 171:         else
 172:             warn("%s: \"%s\" type label not found", ppathname, tp);
 173:         }
 174:     pbaddstring(PDIRTYPE, typbuf);
 175: }
 176: 
 177: 
 178: 
 179: /*
 180:  * rmd() removes a project directory. rmd() returns the status of the rm
 181:  * command or 1 if the user decides not to remove a project directory.
 182:  */
 183: rmd(pathname)
 184:     char *pathname;         /* full pathname of directory */
 185: {
 186:     char cmdbuf[PATHSIZE+9];    /* command buffer */
 187:     char *sprintf();        /* print output to string */
 188:     int status;         /* return status */
 189:     int yes();          /* is reply yes? */
 190: 
 191:     if (RECURSIVE)
 192:         {
 193:         sprintf(cmdbuf, "rm %s -r %s", RMFLAG, pathname);
 194:         printf("%s? [yn](n): ", cmdbuf);
 195:         if (!yes())
 196:             return(1);
 197:         status = system(cmdbuf);
 198:         status >>= NBBY;
 199:         status &= 0xff;
 200:         }
 201:     else    {
 202:         status = RM_DIR(pathname);
 203:         }
 204:     return(status);
 205: }
 206: 
 207: 
 208: 
 209: /*
 210:  * rmpdir() removes a project directory. Returns 0 is successful, otherwise 1.
 211:  */
 212: rmpdir(ppathname, pb)
 213:     char *ppathname;        /* project directory pathname */
 214:     PATH *pb;           /* pathname struct buffer */
 215: {
 216:     int _closepdb();        /* close database without updating */
 217:     int closepdb();         /* close database */
 218:     int errpdb();           /* print database error */
 219:     int plen;           /* length of regular pathname */
 220:     int pputent();          /* write buffer to database */
 221:     int status = 0;         /* return status */
 222:     int strlen();           /* string length */
 223:     int strncmp();          /* compare n characters */
 224:     PATH *pd;           /* pathname struct pointer */
 225:     PATH *readpld();        /* read project link directory entry */
 226:     PDB *openpdb();         /* open database */
 227:     PDB *pldp;          /* project link directory stream */
 228: 
 229:     plen = strlen(pb->p_path);
 230:     if (strncmp(pb->p_path, CWD, plen) == 0)
 231:         {
 232:         warn("can't remove %s from current directory", ppathname);
 233:         return(1);
 234:         }
 235:     if ((pldp = openpdb(PLDNAME, pb->p_project, "rw")) == NULL)
 236:         return(errpdb((PDB *) NULL));
 237:     while ((pd = readpld(pldp)) != NULL)
 238:         if (EQUAL(pb->p_alias, pd->p_alias))
 239:             continue;   /* the directory itself */
 240:         else if (strncmp(pb->p_path, pd->p_path, plen) == 0)
 241:             {       /* nest project directories */
 242:             if (pd->p_mode == P_IFPROOT)
 243:                 {   /* don't clobber projects */
 244:                 warn("can't remove %s because project %s exists",
 245:                      ppathname, pd->p_path);
 246:                 status = 1;
 247:                 break;
 248:                 }
 249:             }
 250:         else    {
 251:             pputent(pldp);
 252:             }
 253:     if (status == 1)
 254:         _closepdb(pldp);
 255:     else    {
 256:         if ((status = rmd(pb->p_path)) != 0)
 257:             _closepdb(pldp);
 258:         else
 259:             status = closepdb(pldp);
 260:         }
 261:     return(status);
 262: }
 263: 
 264: 
 265: 
 266: /*
 267:  * rmtyp() removes type labels from an existing project directory.
 268:  */
 269: rmtyp(ppathname, pdirtyp, pb)
 270:     char *ppathname;        /* project directory pathname */
 271:     SLIST *pdirtyp;         /* project directory type labels list */
 272:     PATH *pb;           /* pathname struct buffer */
 273: {
 274:     char *pbfndkey();       /* find key */
 275:     int closepdb();         /* close database */
 276:     int errpdb();           /* print database error */
 277:     int pgetent();          /* load next entry into buffer */
 278:     int pputent();          /* write buffer to database */
 279:     int status = 0;         /* return status */
 280:     PDB *openpdb();         /* open database */
 281:     PDB *pldp;          /* project link directory stream */
 282:     void pbrmtyp();         /* remove type labels from buffer */
 283: 
 284:     if ((pldp = openpdb(PLDNAME, pb->p_project, "rw")) == NULL)
 285:         return(errpdb((PDB *) NULL));
 286:     while (pgetent(pldp) != EOF)
 287:         {
 288:         if (pbfndkey(pb->p_alias) != NULL)
 289:             pbrmtyp(ppathname, pdirtyp);
 290:         pputent(pldp);
 291:         }
 292:     status = closepdb(pldp);
 293:     return(status);
 294: }
 295: 
 296: 
 297: 
 298: /*
 299:  * typargtolist() prepends comma-separated type labels specified in typarg
 300:  * to typlist.
 301:  */
 302: void
 303: typargtolist(typarg, typlist)
 304:     register char *typarg;      /* type labels argument */
 305:     SLIST *typlist;         /* type labels list */
 306: {
 307:     register char *t;       /* type label argument pointer */
 308:     char *slprepend();      /* prepend singly-linked list key */
 309: 
 310:     for (t = typarg; *t != '\0'; t++)
 311:         continue;
 312:     for (; t >= typarg; t--)
 313:         if (t[0] == ',')
 314:             {
 315:             if (t[1] != '\0')
 316:                 slprepend(t+1, typlist);
 317:             t[0] = '\0';
 318:             }
 319:     slprepend(typarg, typlist);
 320: }
 321: 
 322: 
 323: 
 324: /*
 325:  * unpdir() undefines a project directory. Returns 0 is successful, otherwise 1.
 326:  */
 327: unpdir(pb)
 328:     PATH *pb;           /* pathname struct buffer */
 329: {
 330:     int closepdb();         /* close database */
 331:     int errpdb();           /* print database error */
 332:     int pputent();          /* write buffer to database */
 333:     PATH *pd;           /* pathname struct pointer */
 334:     PATH *readpld();        /* read project link directory entry */
 335:     PDB *openpdb();         /* open database */
 336:     PDB *pldp;          /* project link directory stream */
 337: 
 338:     if ((pldp = openpdb(PLDNAME, pb->p_project, "rw")) == NULL)
 339:         return(errpdb((PDB *) NULL));
 340:     while ((pd = readpld(pldp)) != NULL)
 341:         if (EQUAL(pb->p_alias, pd->p_alias))
 342:             continue;
 343:         else
 344:             pputent(pldp);
 345:     return(closepdb(pldp));
 346: }

Defined functions

Defined variables