1 /* displayq.c 4.6 83/06/15 */ 2 /* 3 * Routines to display the state of the queue. 4 */ 5 6 #include "lp.h" 7 8 #define JOBCOL 40 /* column for job # in -l format */ 9 #define OWNCOL 7 /* start of Owner column in normal */ 10 #define SIZCOL 62 /* start of Size column in normal */ 11 12 /* 13 * Stuff for handling job specifications 14 */ 15 extern char *user[]; /* users to process */ 16 extern int users; /* # of users in user array */ 17 extern int requ[]; /* job number of spool entries */ 18 extern int requests; /* # of spool requests */ 19 20 static int lflag; /* long output option */ 21 static char current[40]; /* current file being printed */ 22 static int garbage; /* # of garbage cf files */ 23 static int rank; /* order to be printed (-1=none, 0=active) */ 24 static long totsize; /* total print job size in bytes */ 25 static int first; /* first file in ``files'' column? */ 26 static int col; /* column on screen */ 27 static int sendtorem; /* are we sending to a remote? */ 28 static char file[132]; /* print file name */ 29 30 static char *head0 = "Rank Owner Job Files"; 31 static char *head1 = "Total Size\n"; 32 33 /* 34 * Display the current state of the queue. Format = 1 if long format. 35 */ 36 displayq(format) 37 int format; 38 { 39 register struct queue *q; 40 register int i, nitems, fd; 41 struct queue **queue; 42 struct stat statb; 43 FILE *fp; 44 45 lflag = format; 46 totsize = 0; 47 rank = -1; 48 49 if ((i = pgetent(line, printer)) < 0) 50 fatal("cannot open printer description file"); 51 else if (i == 0) 52 fatal("unknown printer"); 53 if ((LP = pgetstr("lp", &bp)) == NULL) 54 LP = DEFDEVLP; 55 if ((RP = pgetstr("rp", &bp)) == NULL) 56 RP = DEFLP; 57 if ((SD = pgetstr("sd", &bp)) == NULL) 58 SD = DEFSPOOL; 59 if ((LO = pgetstr("lo", &bp)) == NULL) 60 LO = DEFLOCK; 61 if ((ST = pgetstr("st", &bp)) == NULL) 62 ST = DEFSTAT; 63 RM = pgetstr("rm", &bp); 64 65 /* 66 * If there is no local printer, then print the queue on 67 * the remote machine and then what's in the queue here. 68 * Note that a file in transit may not show up in either queue. 69 */ 70 if (*LP == '\0') { 71 register char *cp; 72 char c; 73 74 sendtorem++; 75 (void) sprintf(line, "%c%s", format + '\3', RP); 76 cp = line; 77 for (i = 0; i < requests; i++) { 78 cp += strlen(cp); 79 (void) sprintf(cp, " %d", requ[i]); 80 } 81 for (i = 0; i < users; i++) { 82 cp += strlen(cp); 83 *cp++ = ' '; 84 strcpy(cp, user[i]); 85 } 86 strcat(line, "\n"); 87 fd = getport(RM); 88 if (fd < 0) { 89 if (from != host) 90 printf("%s: ", host); 91 printf("connection to %s is down\n", RM); 92 } else { 93 i = strlen(line); 94 if (write(fd, line, i) != i) 95 fatal("Lost connection"); 96 while ((i = read(fd, line, sizeof(line))) > 0) 97 (void) fwrite(line, 1, i, stdout); 98 (void) close(fd); 99 } 100 } 101 /* 102 * Find all the control files in the spooling directory 103 */ 104 if (chdir(SD) < 0) 105 fatal("cannot chdir to spooling directory"); 106 if ((nitems = getq(&queue)) < 0) 107 fatal("cannot examine spooling area\n"); 108 if (stat(LO, &statb) >= 0 && (statb.st_mode & 010)) { 109 if (sendtorem) 110 printf("\n%s: ", host); 111 printf("Warning: %s queue is turned off\n", printer); 112 } 113 if (nitems == 0) { 114 if (!sendtorem) 115 printf("no entries\n"); 116 return(0); 117 } 118 fp = fopen(LO, "r"); 119 if (fp == NULL || flock(fileno(fp), LOCK_SH|LOCK_NB) == 0) { 120 if (fp != NULL) 121 fclose(fp); 122 garbage = nitems; 123 if (sendtorem) 124 printf("\n%s: ", host); 125 if (stat(LO, &statb) >= 0 && (statb.st_mode & 0100)) 126 printf("Warning: %s is down\n", printer); 127 else 128 printf("Warning: no daemon present\n"); 129 } else { 130 register char *cp = current; 131 132 /* skip daemon pid */ 133 while ((*cp = getc(fp)) != EOF && *cp != '\n'); 134 /* read current file name */ 135 while ((*cp = getc(fp)) != EOF && *cp != '\n') 136 cp++; 137 *cp = '\0'; 138 fclose(fp); 139 /* 140 * Print the status file to show what the daemon is doing. 141 */ 142 if (sendtorem) 143 printf("\n%s: ", host); 144 fd = open(ST, O_RDONLY); 145 if (fd >= 0) { 146 (void) flock(fd, LOCK_SH); 147 while ((i = read(fd, line, sizeof(line))) > 0) 148 (void) fwrite(line, 1, i, stdout); 149 (void) close(fd); 150 } else 151 putchar('\n'); 152 } 153 /* 154 * Now, examine the control files and print out the jobs to 155 * be done for each user. 156 */ 157 if (!lflag) 158 header(); 159 for (i = 0; i < nitems; i++) { 160 q = queue[i]; 161 inform(q->q_name); 162 free(q); 163 } 164 free(queue); 165 return(nitems-garbage); 166 } 167 168 /* 169 * Print the header for the short listing format 170 */ 171 static 172 header() 173 { 174 printf(head0); 175 col = strlen(head0)+1; 176 blankfill(SIZCOL); 177 printf(head1); 178 } 179 180 static 181 inform(cf) 182 char *cf; 183 { 184 register int j, k; 185 register char *cp; 186 FILE *cfp; 187 188 /* 189 * There's a chance the control file has gone away 190 * in the meantime; if this is the case just keep going 191 */ 192 if ((cfp = fopen(cf, "r")) == NULL) 193 return; 194 195 if (rank < 0) 196 rank = 0; 197 if (sendtorem || garbage || strcmp(cf, current)) 198 rank++; 199 j = 0; 200 while (getline(cfp)) { 201 switch (line[0]) { 202 case 'P': /* Was this file specified in the user's list? */ 203 if (!inlist(line+1, cf)) { 204 fclose(cfp); 205 return; 206 } 207 if (lflag) { 208 printf("\n%s: ", line+1); 209 col = strlen(line+1) + 2; 210 prank(rank); 211 blankfill(JOBCOL); 212 printf(" [job %s]\n", cf+3); 213 } else { 214 col = 0; 215 prank(rank); 216 blankfill(OWNCOL); 217 printf("%-10s %-3d ", line+1, atoi(cf+3)); 218 col += 16; 219 first = 1; 220 } 221 continue; 222 default: /* some format specifer and file name? */ 223 if (line[0] < 'a' || line[0] > 'z') 224 continue; 225 if (j == 0 || strcmp(file, line+1) != 0) 226 strcpy(file, line+1); 227 j++; 228 continue; 229 case 'N': 230 show(line+1, file, j); 231 file[0] = '\0'; 232 j = 0; 233 } 234 } 235 fclose(cfp); 236 if (!lflag) { 237 blankfill(SIZCOL); 238 printf("%D bytes\n", totsize); 239 totsize = 0; 240 } 241 } 242 243 static 244 inlist(name, file) 245 char *name, *file; 246 { 247 register int *r, n; 248 register char **u, *cp; 249 250 if (users == 0 && requests == 0) 251 return(1); 252 /* 253 * Check to see if it's in the user list 254 */ 255 for (u = user; u < &user[users]; u++) 256 if (!strcmp(*u, name)) 257 return(1); 258 /* 259 * Check the request list 260 */ 261 for (n = 0, cp = file+3; isdigit(*cp); ) 262 n = n * 10 + (*cp++ - '0'); 263 for (r = requ; r < &requ[requests]; r++) 264 if (*r == n && !strcmp(cp, from)) 265 return(1); 266 return(0); 267 } 268 269 static 270 show(nfile, file, copies) 271 register char *nfile, *file; 272 { 273 if (strcmp(nfile, " ") == 0) 274 nfile = "(standard input)"; 275 if (lflag) 276 ldump(nfile, file, copies); 277 else 278 dump(nfile, file, copies); 279 } 280 281 /* 282 * Fill the line with blanks to the specified column 283 */ 284 static 285 blankfill(n) 286 register int n; 287 { 288 while (col++ < n) 289 putchar(' '); 290 } 291 292 /* 293 * Give the abbreviated dump of the file names 294 */ 295 static 296 dump(nfile, file, copies) 297 char *nfile, *file; 298 { 299 register short n, fill; 300 struct stat lbuf; 301 302 /* 303 * Print as many files as will fit 304 * (leaving room for the total size) 305 */ 306 fill = first ? 0 : 2; /* fill space for ``, '' */ 307 if (((n = strlen(nfile)) + col + fill) >= SIZCOL-4) { 308 if (col < SIZCOL) { 309 printf(" ..."), col += 4; 310 blankfill(SIZCOL); 311 } 312 } else { 313 if (first) 314 first = 0; 315 else 316 printf(", "); 317 printf("%s", nfile); 318 col += n+fill; 319 } 320 if (*file && !stat(file, &lbuf)) 321 totsize += copies * lbuf.st_size; 322 } 323 324 /* 325 * Print the long info about the file 326 */ 327 static 328 ldump(nfile, file, copies) 329 char *nfile, *file; 330 { 331 struct stat lbuf; 332 333 putchar('\t'); 334 if (copies > 1) 335 printf("%-2d copies of %-19s", copies, nfile); 336 else 337 printf("%-32s", nfile); 338 if (*file && !stat(file, &lbuf)) 339 printf(" %D bytes", lbuf.st_size); 340 else 341 printf(" ??? bytes"); 342 putchar('\n'); 343 } 344 345 /* 346 * Print the job's rank in the queue, 347 * update col for screen management 348 */ 349 static 350 prank(n) 351 { 352 char line[100]; 353 static char *r[] = { 354 "th", "st", "nd", "rd", "th", "th", "th", "th", "th", "th" 355 }; 356 357 if (n == 0) { 358 printf("active"); 359 col += 6; 360 return; 361 } 362 if ((n/10) == 1) 363 (void) sprintf(line, "%dth", n); 364 else 365 (void) sprintf(line, "%d%s", n, r[n%10]); 366 col += strlen(line); 367 printf("%s", line); 368 } 369