mdsms.c

   1 #include "config.h"
   2 #ifndef lint
   3 static char rcsid[] ATTR_UNUSED = "$Id$";
   4 #endif
   5
   6 #include "setup.h"
   7
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #include <string.h>
  11 #include <signal.h>
  12 #include <stdarg.h>
  13 #include <limits.h>
  14 #include <ctype.h>
  15 #include <string.h>
  16 #include <termios.h>
  17 #include <unistd.h>
  18 #include <assert.h>
  19 #include <sys/types.h>
  20 #include <sys/stat.h>
  21 #include <fcntl.h>
  22 #include <errno.h>
  23 #include <signal.h>
  24 #include <time.h>
  25
  26 #ifdef HAVE_GETOPT_LONG
  27 #include <getopt.h>
  28 #else
  29 #include "getopt.h"
  30 #endif
  31
  32 #define NELEM(x) (sizeof((x))/sizeof(*(x)))
  33
  34 #ifndef DEBUG
  35 #define dbg(cmd)
  36 #else
  37 #define dbg(cmd) cmd
  38 #endif
  39 /* ANSI C does not allow macro with variable arguments */
  40 #define dO stderr
  41 #define dB(a) dbg(fprintf a)
  42
  43 #define d1(n1)          dB((dO,n1         ))
  44 #define d2(n1,n2)       dB((dO,n1,n2      ))
  45 #define d3(n1,n2,n3)    dB((dO,n1,n2,n3   ))
  46 #define d4(n1,n2,n3,n4) dB((dO,n1,n2,n3,n4))
  47
  48 static const char version[]="This is MobilDock SMS sender (" PACKAGE " " VERSION ")\n";
  49
  50 static int verbose
  51 #ifdef DEBUG
  52         =0xFFFF
  53 #endif
  54         ;
  55 static char *pname;
  56 static int dis_cleanup=0,devfd=-1;
  57
  58 static char *phone,*body,*device,*logname,*lockfile,*smsc,*maxretry,*readtime,*chartime,*cmdtime;
  59 static int readbody;
  60 static long maxretryn=DEF_MAXRETRY,readtimen=DEF_READTIME,chartimen=DEF_CHARTIME,cmdtimen=DEF_CMDTIME;
  61 static size_t bodylen;
  62
  63 static char *devicename; /* path stripped */
  64 static char lockreal[512],locked;
  65
  66 static struct termios restios,tios;
  67 static char restios_yes;
  68 static FILE *logf;
  69
  70 static void vlogmsg(
  71 #ifndef PRINTF_WORKS_PM
  72                 char outerr,
  73 #endif
  74                 const char *fmt,va_list ap)
  75 {
  76 time_t stamp;
  77 char *ctm,*s;
  78 pid_t mypid=-1;
  79 char host[LINE_MAX];
  80
  81         if (!logf) return;
  82         if (mypid==-1) {
  83                 mypid=getpid();
  84                 if (gethostname(host,sizeof(host))) strcpy(host,"<ERROR>");
  85                 }
  86         time(&stamp);
  87         ctm=ctime(&stamp);
  88         if ((s=strchr(ctm,'\n'))) *s='\0';
  89         fprintf(logf,"%s %s %s[%d]: ",ctm,host,pname,mypid);
  90         vfprintf(logf,fmt,ap);
  91 #ifndef PRINTF_WORKS_PM
  92         if (outerr) fputs(strerror(errno),logf);
  93 #endif
  94         fputc('\n',logf);
  95         fflush(logf);
  96 }
  97
  98 static void logmsg(const char *fmt,...)
  99 {
 100 va_list ap;
 101         va_start(ap,fmt);
 102         vlogmsg(
 103 #ifndef PRINTF_WORKS_PM
 104                 0,
 105 #endif
 106                 fmt,ap);
 107         va_end(ap);
 108 }
 109
 110 static void error(const char *fmt,...)
 111 {
 112 va_list ap;
 113 char fatal=*fmt;
 114 #ifndef PRINTF_WORKS_PM
 115 char pm,*nfmt;
 116 size_t fmtl;
 117 #endif
 118
 119         if (fatal=='!' || fatal=='.' || fatal=='\n') fmt++;
 120         else fatal=0;
 121
 122 #ifndef PRINTF_WORKS_PM
 123         if (!(nfmt=strdup(fmt))) return;
 124         fmtl=strlen(fmt);
 125         if ((pm=(fmtl>=2 && !strcmp(fmt+fmtl-2,"%m")))) nfmt[fmtl-2]='\0';
 126 #endif
 127
 128         fprintf(stderr,"%s: ",pname);
 129         va_start(ap,fmt);
 130         vfprintf(stderr,
 131 #ifdef PRINTF_WORKS_PM
 132                 fmt
 133 #else
 134                 nfmt
 135 #endif
 136                 ,ap);
 137         if (fatal=='!') vlogmsg(
 138 #ifdef PRINTF_WORKS_PM
 139                 fmt
 140 #else
 141                 pm,nfmt
 142 #endif
 143                 ,ap);
 144         va_end(ap);
 145
 146 #ifndef PRINTF_WORKS_PM
 147         if (pm) {
 148                 fputs(strerror(errno),stderr);
 149                 free(nfmt);
 150                 }
 151 #endif
 152
 153         if (fatal!='\n') fputc((fatal=='.'?'.':'!'),stderr);
 154         fputc('\n',stderr);
 155         if (fatal=='!') exit(EXIT_FAILURE);
 156 }
 157
 158 static void chk(void *p)
 159 {
 160         if (p) return;
 161         error("!Virtual memory exhausted");
 162 }
 163
 164 static void cleanup(void)
 165 {
 166         d1("cleanup()\n");
 167         if (dis_cleanup) return;
 168         if (restios_yes) {
 169                 if (tcsetattr(devfd,TCSANOW,&restios))
 170                         error("Error restoring termios for device: %m");
 171                 restios_yes=0;
 172                 }
 173         if (locked && *lockreal) {
 174                 d2("Removing lockfile \"%s\"\n",lockreal);
 175                 if (unlink(lockreal))
 176                         error("Error removing my device lockfile \"%s\": %m",lockreal);
 177                 locked=0;
 178                 }
 179         dis_cleanup=1;
 180         exit(EXIT_FAILURE);
 181 }
 182
 183 static void usage(void)
 184 {
 185         fprintf(stderr,"\
 186 \n\
 187 %s\
 188 \n\
 189 Usage: " PACKAGE " [-c|--config <cfgfile>] [-d|--device <device>]\n\
 190              [-L|--log <file>]\n\
 191              [-l|--lockfile <lock>] [-s|--smsc <smsc #>] [-m|--maxretry <#>]\n\
 192              [-r|--readtime <sec>] [-t|--chartime <msec>] [-T|--cmdtime <msec>]\n\
 193              [-f|--file] [-v|--verbose] [-h|--help] [-V|--version]\n\
 194              <dest. phone> <msg text|msg filename>\n\
 195 \n\
 196  -c, --config\tRead this additional config file\n\
 197 \t\t(def. \"" CONFIG_MAIN "\" and \"$HOME" CONFIG_HOME "\")\n\
 198  -d, --device\tMobilDock on this serial device (def. \"" DEF_DEVICE "\")\n\
 199  -L, --log\tLog all important messages to this file (def. \"" DEF_LOGNAME "\")\n\
 200  -l, --lockfile\tLock serial port by this file, \"%%s\" is basename of device\n\
 201 \t\t(def. \"%s\")\n\
 202  -s, --smsc\tUse this SMS Center number (def. query from Siemens A1)\n\
 203  -m, --maxretry\tMaximum retries of any command before giving up (def. %d)\n\
 204  -r, --readtime\tSeconds for maximum wait time for response (def. %ds)\n\
 205  -t, --chartime\tMilliseconds between each char on baud 19200 (def. %dms)\n\
 206  -T, --cmdtime\tMilliseconds before each whole AT command (def. %dms)\n\
 207  -f, --file\tRead contents of message from file instead\n\
 208  -v, --verbose\tIncrease verbosity level, more \"-v\"s give more messages\n\
 209  -h, --help\tPrint a summary of the options\n\
 210  -V, --version\tPrint the version number\n\
 211 \n",version,DEF_LOCKFILE,DEF_MAXRETRY,DEF_READTIME,DEF_CHARTIME,DEF_CMDTIME);
 212         exit(EXIT_FAILURE);
 213 }
 214
 215 static const struct option longopts[]={
 216 {"config"  ,1,0,'c'},
 217 {"device"  ,1,0,'d'},
 218 {"log"     ,1,0,'L'},
 219 {"lockfile",1,0,'l'},
 220 {"smsc"    ,1,0,'s'},
 221 {"maxretry",1,0,'m'},
 222 {"readtime",1,0,'r'},
 223 {"chartime",1,0,'t'},
 224 {"cmdtime" ,1,0,'T'},
 225 {"file"    ,0,0,'f'},
 226 {"verbose" ,0,0,'v'},
 227 {"help"    ,0,0,'h'},
 228 {"version" ,0,0,'V'}};
 229
 230 static void processargs(int argp,char **args,const char *from);
 231
 232 static char *cfgstack[MAXCFGLOOP];
 233 static unsigned cfgstacki=0;
 234
 235 static void chkfclose(FILE *f,const char *fname)
 236 {
 237         if (fclose(f))
 238                 error("Error closing \"%s\": %m",fname);
 239 }
 240
 241 static void readfile(const char *fname,char quiet)
 242 {
 243 FILE *f;
 244 size_t got;
 245 char *args[MAXCFGARGS],*d,*s,blank,quote;
 246 unsigned argp;
 247 char *buf;
 248 long size;
 249 static unsigned tot=0;
 250
 251         if (tot++>=MAXCFGNUM) {
 252                 if (tot==MAXCFGNUM+1) error("Too many config files to read, max is %d, break-out",MAXCFGNUM);
 253                 return;
 254                 }
 255         if (!(f=fopen(fname,"rt"))) {
 256                 if (!quiet) error("Can't open config file \"%s\" for r/o: %m",fname);
 257                 return;
 258                 }
 259         if (verbose>=2) error(".Reading config file \"%s\"",fname);
 260         if (fseek(f,0,SEEK_END))
 261                 error("Error seeking to end of \"s\": %m",fname);
 262         if ((size=ftell(f))<0)
 263                 size=0,error("Error measuring \"%s\": %m",fname);
 264         if (size>MAXCONFIG)
 265                 error("File \"%s\" is too long, read only %ld bytes",fname,MAXCONFIG);
 266         chk(buf=malloc((size?size:MAXCONFIG)+1));
 267         rewind(f);
 268         got=fread(buf,1,(size?size:MAXCONFIG),f);
 269         if (size && got!=size)
 270                 error("File \"%s\" read error, got only %u bytes of %ld",fname,got,size);
 271         chkfclose(f,fname);
 272         buf[got]='\0';
 273         args[0]=pname;
 274         for (argp=1,d=s=buf,blank=1,quote=0;s<buf+got;s++) {
 275 char c=*s;
 276
 277                 if (!quote && isspace(c)) {
 278                         if (!blank) {
 279                                 *d='\0';
 280                                 blank=1;
 281                                 if (verbose>=2) error("\nConfig \"%s\": arg#%d: %s",fname,argp-1,args[argp-1]);
 282                                 }
 283                         continue;
 284                         }
 285                 if (blank) {
 286                         if (argp>=NELEM(args)-1) {
 287                                 error("Too many arguments in \"%s\", from offset %d ignored",fname,s-buf);
 288                                 break;
 289                                 }
 290                         args[argp++]=s;
 291                         d=s;
 292                         blank=0;
 293                         }
 294                 if (c=='\\') { *d++=*++s; continue; }
 295                 if (c=='"' || c=='\'') {
 296                         if (!quote   ) { quote=c; continue; }
 297                         if ( quote==c) { quote=0; continue; }
 298                         /* FALLTHRU */
 299                         }
 300                 *d++=c;
 301                 }
 302         args[argp]=NULL;
 303         processargs(argp,args,fname);
 304         free(buf);
 305 }
 306
 307 static struct {
 308         const char c;
 309         char **const var;
 310         unsigned stamp;
 311         } optset[]={
 312                 { 'd',&device   },
 313                 { 'L',&logname  },
 314                 { 'l',&lockfile },
 315                 { 's',&smsc     },
 316                 { 'm',&maxretry },
 317                 { 'r',&readtime },
 318                 { 't',&chartime },
 319                 { 'T',&cmdtime  },
 320         };
 321
 322 static void processargs(int argp,char **args,const char *from)
 323 {
 324 int optc;
 325 static unsigned seq=0;
 326 int i;
 327
 328         seq++;
 329         optarg=NULL; optind=0; /* FIXME: Possible portability problem. */
 330         while ((optc=getopt_long(argp,args,"c:d:L:l:s:m:r:t:T:fvhV",longopts,NULL))!=EOF) switch (optc) {
 331                 case 'c':
 332                         if (cfgstacki>=NELEM(cfgstack)) {
 333                                 error("Looping (%d) during attempt to read config file \"%s\", break-out",NELEM(cfgstack),optind);
 334                                 break;
 335                                 }
 336                         chk(cfgstack[cfgstacki++]=strdup(optarg));
 337                         break;
 338                 case 'd': case 'L': case 'l': case 's': case 'm': case 'r': case 't': case 'T':
 339                         for (i=0;i<NELEM(optset);i++)
 340                                 if (optset[i].c==optc) {
 341                                         if (optset[i].stamp && optset[i].stamp!=seq) {
 342                                                 assert(!!*optset[i].var);
 343                                                 break;
 344                                                 }
 345                                         free(*optset[i].var);
 346                                         chk(*optset[i].var=strdup(optarg));
 347                                         optset[i].stamp=seq;
 348                                         break;
 349                                         }
 350                         assert(i<NELEM(optset));
 351                         break;
 352                 case 'f':
 353                         readbody++;
 354                         break;
 355                 case 'v':
 356                         verbose++;
 357                         break;
 358                 case 'V':
 359                         fprintf(stderr,version);
 360                         exit(EXIT_FAILURE);
 361                 default:
 362                         if (optc!='h')
 363                                 error("\nLast getopt(3) error occured during parsing option %d from \"%s\"! Follows help:",optind-1,from);
 364                         usage();
 365                         break;
 366                 }
 367         if (!phone && optind<argp)
 368                 chk(phone=strdup(args[optind++]));
 369         if (!body && optind<argp) {
 370 char *d;
 371 int i;
 372
 373                 for (i=optind,bodylen=argp-optind;i<argp;i++)
 374                         bodylen+=strlen(args[i]);
 375                 chk(body=malloc(bodylen));
 376                 for (d=body,i=optind;i<argp;i++) {
 377 size_t l=strlen(args[i]);
 378                         memcpy(d,args[i],l);
 379                         d+=l;
 380                         *d++=' ';
 381                         assert(d<=body+bodylen);
 382                         }
 383                 assert(d==body+bodylen);
 384                 d[-1]='\0';
 385                 bodylen--;
 386                 }
 387         while (cfgstacki) {
 388 char *s=cfgstack[--cfgstacki];
 389
 390                 assert(cfgstacki>=0);
 391                 readfile(s,0);
 392                 free(s);
 393                 assert(cfgstacki>=0 && cfgstacki<NELEM(cfgstack));
 394                 }
 395 }
 396
 397 static const struct {
 398         char **var;
 399         const char *name;
 400         } nullcheck[]={
 401                 {&phone,"destination phone number"},
 402 #if 0
 403                 {&body ,"body text"},
 404                 {&device,"device for communication"},
 405 #endif
 406         };
 407 static char **emptycheck[]={&logname,&smsc,&body};
 408
 409 static void lockclose(int fd)
 410 {
 411         if (close(fd))
 412                 error("Error closing lockfile \"%s\"",lockreal);
 413 }
 414
 415 static inline void lockdevice(void)
 416 {
 417 int fd=-1;
 418 char buf[64];
 419 ssize_t got;
 420 int delay=0;
 421 char empty=0;
 422 pid_t pid;
 423
 424         for (;;) {
 425                 if (fd!=-1) lockclose(fd);
 426 recheck:
 427                 if (delay) sleep(delay);
 428                 delay=DEVLOCK_PERIOD;
 429                 if (verbose>=3) error(".Checking the lockfile \"%s\"..",lockreal);
 430                 if ((fd=open(lockreal,O_RDONLY))==-1) break;
 431                 if ((got=read(fd,buf,sizeof(buf)-1))<=0) {
 432 isempty:
 433                         if (empty>=DEVLOCK_MAXEMPTY) {
 434                                 error(".Lockfile \"%s\" is still not valid, removing it",lockreal);
 435                                 goto remove;
 436                                 }
 437                         empty++;
 438                         continue;
 439                         }
 440                 assert(got<sizeof(buf));
 441                 buf[got]='\0';
 442                 if (sscanf(buf,"%d",&pid)!=1) goto isempty;
 443                 empty=0;
 444                 errno=0;
 445                 if (kill(pid,0) && errno!=ESRCH && errno!=EPERM)
 446                         error("Error during checking consciousness of PID %d: %m",pid);
 447                 if (errno!=ESRCH) continue;
 448                 error(".Lockfile \"%s\" is stale (PID %d), removing it",lockreal,pid);
 449 remove:
 450                 lockclose(fd);
 451                 if (unlink(lockreal))
 452                         error("Error removing foreign lockfile \"%s\": %m",lockreal);
 453                 break;
 454                 }
 455         errno=0;
 456         if ((fd=open(lockreal,O_WRONLY|O_CREAT|O_EXCL,0644))==-1) {
 457                 if (errno==EEXIST) goto recheck;
 458                 error("!Error creating lockfile \"%s\": %m",lockreal);
 459                 }
 460         locked=1;
 461         got=VARPRINTF(buf,"%010d\n",getpid()); assert(got==11);
 462         if (write(fd,buf,got)!=got)
 463                 error("!Error writing data to lockfile \"%s\": %m",lockreal);
 464         lockclose(fd);
 465 }
 466
 467 static char wasalarm=0;
 468 static void sigalarm(int signo)
 469 {
 470         signal(SIGALRM,(RETSIGTYPE (*)(int))sigalarm);
 471         wasalarm=1;
 472         if (verbose>=1) error("Timed out");
 473 }
 474
 475 static void blocking(char yes)
 476 {
 477 static char state=-1;
 478         if (state==yes) return;
 479         if (fcntl(devfd,F_SETFL,(yes?0:O_NONBLOCK)))
 480                 error("!fcntl() on device for %sblocking mode: %m",(yes?"":"non-"));
 481         state=yes;
 482 }
 483
 484 static const char *record;
 485 static char *catchdata;
 486 static size_t catchdatal,catchdatasiz;
 487
 488 static void catched(const char *end)
 489 {
 490 size_t len;
 491 void *p;
 492
 493         if (!record) return;
 494         assert(end>=record);
 495         if ((p=memchr(record,'\n',end-record))) end=p;
 496         if ((len=end-record)) {
 497                 if (catchdatal+len>catchdatasiz)
 498                         chk(catchdata=realloc(catchdata,
 499                                 (catchdatasiz=MAX(LINE_MAX,(catchdatal+len)*2))));
 500                 memcpy(catchdata+catchdatal,record,len);
 501                 catchdatal+=len;
 502                 }
 503         record=(p?NULL:end);
 504         assert(catchdatal<=catchdatasiz);
 505 }
 506
 507 static int retrycnt=0;
 508 static void retrying(void)
 509 {
 510         if (++retrycnt>maxretryn) error("!Maximum command retry count (%d) exceeded",maxretryn);
 511         if (verbose>=2) error(".Retrying phase, %d out of %d..",retrycnt,maxretryn);
 512 }
 513
 514 static char *devcmd(const char *term,const char *catch,const char *send,...)
 515 {
 516 size_t l,bufl,terml,catchl,fragl,offs;
 517 char buf[LINE_MAX];
 518 ssize_t got;
 519 char *hit,*s;
 520 va_list ap;
 521 char errout;
 522
 523         if (!term) term="\nOK\n";
 524         if ((errout=(*send=='!'))) send++;
 525         if (0) {
 526 err:
 527                 alarm(0);
 528                 if (errout) return(NULL);
 529                 retrying();
 530                 }
 531         catchdatal=0;
 532         va_start(ap,send);
 533         l=VARVPRINTF(buf,send,ap); bufl=l+1;
 534         va_end(ap);
 535         if (bufl>=sizeof(buf)-1) error("!Command too big (%d>%d)",bufl,sizeof(buf)-1);
 536         if (verbose>=2) error(".devcmd(send=\"%s\",term=\"%s\",catch=\"%s\")",buf,term,catch);
 537         buf[l]='\r'; buf[l+1]='\n';
 538         for (offs=0,got=0;offs<bufl;offs++) {
 539                 alarm(MAXSENDTIME);
 540                 usleep((offs?chartimen:cmdtimen)*1000);
 541                 if (!offs && tcflush(devfd,TCIOFLUSH))
 542                         error("Error flushing I/O queue of device: %m");
 543                 if (write(devfd,buf+offs,1)!=1) break;
 544                 got++;
 545                 if (tcdrain(devfd))
 546                         error("Error forcing output of char %d of cmd \"%s\": %m",offs,buf);
 547                 }
 548         alarm(0);
 549         if (got!=bufl) {
 550                 error("Wrote only %d of %d bytes of command: %m",got,bufl);
 551                 goto err;
 552                 }
 553
 554         if (!(terml=strlen(term))) {
 555                 assert(!catch);
 556                 return(NULL);
 557                 }
 558         if (catch) {
 559                 catchl=strlen(catch);
 560                 fragl=MAX(terml,catchl);
 561                 }
 562         else fragl=terml;
 563         fragl=MAX(fragl,MAX(strlen(ERROR_SUBSTR1),strlen(ERROR_SUBSTR2)));
 564         bufl=0;
 565         record=NULL;
 566         wasalarm=0;
 567         alarm(readtimen);
 568         for (;;) {
 569                 blocking(0);
 570                 errno=0;
 571                 got=read(devfd,buf+bufl,sizeof(buf)-1-bufl);
 572                 if (got==-1 && errno==EAGAIN) {
 573                         blocking(1);
 574                         errno=0;
 575                         got=read(devfd,buf+bufl,1);
 576                         }
 577                 if (got<=0) {
 578                         if (wasalarm) error("!Maximum response timeout (%ds) exceeded",readtimen);
 579                         error("Couldn't read device data (ret=%d): %m",got);
 580                         goto err;
 581                         }
 582                 s=buf+bufl;
 583                 bufl+=got;
 584                 /* FIXME: '\0' conversion */
 585                 while (buf+bufl>s && (s=memchr(s,'\r',buf+bufl-s))) *s='\n';
 586                 catched(buf+bufl); assert(!record || record==buf+bufl);
 587                 assert(bufl<sizeof(buf));
 588                 if (bufl>=fragl) {
 589                         buf[bufl]='\0';
 590                         assert(strlen(buf)==bufl);
 591                         /* d3(">%s|%s<\n",buf,term); */
 592                         if (strstr(buf,ERROR_SUBSTR1) || strstr(buf,ERROR_SUBSTR2)) {
 593                                 error("Found ERROR response on command \"%s\"",send);
 594                                 goto err;
 595                                 }
 596                         if (catch && bufl>=catchl && (hit=strstr(buf,catch))) {
 597                                 record=hit+catchl;
 598                                 catched(buf+bufl); assert(!record || record==buf+bufl);
 599                                 }
 600                         if (         bufl>= terml && (hit=strstr(buf,term))) break;
 601                         memmove(buf,buf+bufl-(fragl-1),fragl-1);
 602                         bufl=fragl-1;
 603                         if (record) record=buf+bufl;
 604                         }
 605                 }
 606         alarm(0);
 607         if (!catchdatal) {
 608                 if (!catch) return(NULL);
 609                 error("Data requested on command \"%s\" but no found after term \"%s\"",send,term);
 610                 goto err;
 611                 }
 612         assert(!!catch);
 613         record=buf;
 614         buf[0]='\0';
 615         catched(buf+1);
 616         if (verbose>=2) error(".Returning data \"%s\" for cmd \"%s\"",catchdata,send);
 617         return(catchdata);
 618 }
 619
 620 static int prepaddr(unsigned char *d,const char *addr)
 621 {
 622 int tot=0;
 623 char flip=0,plus;
 624 unsigned char n;
 625
 626         if ((plus=(*addr=='+'))) addr++;
 627         *++d=(plus?ADDR_INT:ADDR_NAT);
 628         while (*addr) {
 629                 if (*addr<'0' || *addr>'9')
 630                         error("!Error during conversion of number at: %s",addr);
 631                 tot++;
 632                 n=(*addr++)-'0';
 633                 if ((flip=!flip)) *++d=0xF0|n;
 634                 else *d=(*d&0x0F)|(n<<4U);
 635                 }
 636         return(tot);
 637 }
 638
 639 static char *finalsmsc;
 640 #define SMSCBINSIZE (1+1+(MAXNUMLEN+1)/2)
 641 static char pdusmsc[SMSCBINSIZE*2+1];
 642
 643 static inline char tohex(unsigned char x)
 644 {
 645         x&=0x0F;
 646         if (x<10) return(x   +'0');
 647                   return(x-10+'A');
 648 }
 649
 650 static void textconv(char *d,unsigned char *s,size_t len)
 651 {
 652         while (len--) {
 653                 *d++=tohex(*s>>4U);
 654                 *d++=tohex(*s    );
 655                 s++;
 656                 }
 657         *d='\0';
 658 }
 659
 660 static inline void smscset(void)
 661 {
 662 char *s,*t,*e,*serr;
 663 long l;
 664 unsigned char bin[2+(MAXNUMLEN+1)/2];
 665
 666         if (smsc) devcmd(NULL,NULL,"\r\nAT+CSCA=\"%s\"",smsc);
 667         s=devcmd(NULL,"\n+CSCA:","\r\nAT+CSCA?");
 668         while (isspace(*s)) s++;
 669         if (!*s || !strcmp(s,"EMPTY"))
 670                 error("!No SMS set in A1 found");
 671         if (verbose>=1) error("\nFound default SMSC in A1: %s",s);
 672         if (*s!='"') error("!No left-quote found in: %s",s);
 673         if (!(t=strrchr(s+1,'"'))) error("!No right-quote found in: %s",s);
 674         e=t++;
 675         while (isspace(*t)) t++;
 676         if (*t++!=',') error("!No comma found after quotes in: %s",s);
 677         while (isspace(*t)) t++;
 678         l=strtol(t,&serr,10);
 679         if ((l!=ADDR_NAT && l!=ADDR_INT) || (serr && *serr))
 680                 error("!Type parse error in: %s",s);
 681         if (l==ADDR_NAT || s[1]=='+') s++;
 682         else *s='+';
 683         *e='\0';
 684         chk(finalsmsc=strdup(s));
 685         if (verbose>=2) error("\nDecoded SMSC address: %s",finalsmsc);
 686         bin[0]=1+(prepaddr(bin,finalsmsc)+1)/2;
 687         textconv(pdusmsc,bin,bin[0]+1);
 688 }
 689
 690 static char *pdudata;
 691
 692 static inline unsigned char charconv(char c,size_t offs)
 693 {
 694         switch (c) {
 695                 case '@': return(0);
 696                 case '$': return(2);
 697                 case 0: assert(0);
 698                 default:
 699                         return(c&0x7F);
 700                 }
 701 #if 0
 702         if ((c>='A' && c<='Z') || (c>='a' && c<='z') || (c>='0' && c<='9')) return(c);
 703         error("Can't convert character '%c' (0x%02X) at offs %d (0-based), substituted '?'",
 704                 c,(unsigned char)c,offs);
 705         return('?');
 706 #endif
 707 }
 708
 709 static inline void genpdu(void)
 710 {
 711 static unsigned char pdu[64+MAXNUMLEN/2+(MAXBODYLEN*7)/8];
 712 unsigned char *d=pdu;
 713 int i;
 714 char inb=0,outb=0,xb;
 715 unsigned char inreg;
 716 size_t offs=0;
 717
 718         *d++=PDU_TYPE;
 719         *d++=PDU_MR;
 720         i=prepaddr(d,phone);
 721         *d=i; d+=1+1+(i+1)/2;
 722         *d++=PDU_PID;
 723         *d++=PDU_DCS;
 724         *d++=PDU_VP;
 725         if (bodylen>MAXBODYLEN) {
 726                 error("Body too large (%d>%d), cut",bodylen,MAXBODYLEN);
 727                 bodylen=MAXBODYLEN;
 728                 }
 729         *d=bodylen;
 730         assert(d<pdu+sizeof(pdu));
 731         while (bodylen || inb) {
 732                 if (!inb) {
 733                         assert(bodylen>0); assert(!!*body);
 734                         inreg=charconv(*body++,offs++);
 735                         bodylen--;
 736                         inb=7;
 737                         }
 738                 if (!outb) {
 739                         *++d=0x00;
 740                         outb=8;
 741                         }
 742                 xb=MIN(inb,outb);
 743                 d4("inb=%d,outb=%d,xb=%d\n",inb,outb,xb);
 744                 *d|=((inreg>>(unsigned)(7-inb))&((1<<xb)-1))<<(unsigned)(8-outb);
 745                 inb-=xb; outb-=xb;
 746                 }
 747         d++;
 748         assert(d<pdu+sizeof(pdu));
 749         pdudata=malloc(2*(d-pdu)+1);
 750         textconv(pdudata,pdu,d-pdu);
 751 }
 752
 753 static struct {
 754         char **sp;
 755         long *ip;
 756         const char *const msg;
 757         } numarg[]={
 758                 { &maxretry,&maxretryn,"maxretry" },
 759                 { &readtime,&readtimen,"readtime" },
 760                 { &chartime,&chartimen,"chartime" },
 761                 { &cmdtime ,&cmdtimen ,"cmdtime"  },
 762         };
 763
 764 int main(int argc,char **argv)
 765 {
 766 char *s,*finame;
 767 FILE *fin;
 768 int i;
 769 unsigned fatal=0;
 770
 771         if ((s=strrchr((pname=*argv),'/'))) pname=s+1;
 772         atexit(cleanup);
 773         signal(SIGTERM,(RETSIGTYPE (*)(int))cleanup);
 774         signal(SIGQUIT,(RETSIGTYPE (*)(int))cleanup);
 775         signal(SIGINT ,(RETSIGTYPE (*)(int))cleanup);
 776         signal(SIGHUP ,(RETSIGTYPE (*)(int))cleanup);
 777         processargs(argc,argv,"<command-line>");
 778         if ((s=getenv("HOME"))) {
 779 size_t l=strlen(s);
 780 char *buf=malloc(l+50);
 781
 782                 memcpy(buf,s,l);
 783                 strcpy(buf+l,CONFIG_HOME);
 784                 readfile(buf,1);
 785                 free(buf);
 786                 }
 787         readfile(CONFIG_MAIN,1);
 788
 789         for (i=0;i<NELEM(nullcheck);i++)
 790                 if (!*nullcheck[i].var) {
 791                         error("Missing parameter \"%s\"",nullcheck[i].name);
 792                         fatal++;
 793                         }
 794         if (fatal) error("!Previous error%s considered unrecoverable",(fatal==1?"":"s"));
 795         for (i=0;i<NELEM(emptycheck);i++)
 796                 if (*emptycheck[i] && !**emptycheck[i]) {
 797                         free(*emptycheck[i]);
 798                              *emptycheck[i]=NULL;
 799                         }
 800         if (!logname) logname=DEF_LOGNAME;
 801         if (!lockfile) lockfile=DEF_LOCKFILE;
 802         if (!device) device=DEF_DEVICE;
 803         if (body && readbody) {
 804                 finame=body;
 805                 body=NULL;
 806                 }
 807         else {
 808                 finame=NULL;
 809                 fin=stdin;
 810                 }
 811         if (!body) {
 812                 readbody=0;
 813                 if (!finame) {
 814                         if (verbose>=1)
 815                                 error("\nPlease enter the SMS text body, end with EOF (ctrl-D):");
 816                         }
 817                 else {
 818                         if (!(fin=fopen(finame,"rt")))
 819                                 error("!Can't open data file \"%s\" for r/o: %m",finame);
 820                         }
 821                 chk(body=malloc(BODYLOAD));
 822                 bodylen=fread(body,1,BODYLOAD,fin);
 823                 if (bodylen==-1)
 824                         error("!Error reading stream \"%s\": %m",(finame?finame:"<stdin>"));
 825                 if (finame) {
 826                         chkfclose(fin,finame);
 827                         free(finame);
 828                         }
 829                 }
 830
 831         for (i=0;i<NELEM(numarg);i++) {
 832 char *serr;
 833                 if (!*numarg[i].sp) continue;
 834                 *numarg[i].ip=strtol(*numarg[i].sp,&serr,0);
 835                 if (*numarg[i].ip<0 || *numarg[i].ip>=LONG_MAX || !serr || *serr)
 836                         error("!Number parse error for parameter \"%s\" of \"%s\" at: %s",
 837                                 numarg[i].msg,*numarg[i].sp,serr);
 838                 }
 839
 840         if (!strchr(device,'/')) {
 841 size_t l=strlen(device);
 842                 chk(s=malloc(5+l+1));
 843                 strcpy(s,"/dev/");
 844                 strcpy(s+5,device);
 845                 free(device);
 846                 device=s;
 847                 }
 848         devicename=strrchr(device,'/')+1; assert(!!(devicename-1));
 849         for (i=0,s=lockfile;*s;s++) {
 850                 if (*s!='%') continue;
 851                 s++;
 852                 if (*s=='%') continue;
 853                 if (*s=='s') {
 854                         if (i) error("!Only one \"%%s\" permitted in lockfile format-string");
 855                         i=1; continue;
 856                         }
 857                 error("!Invalid format-character '%c' in lockfile format-string, only \"%%s\" allowed",*s);
 858                 }
 859
 860         if (*logname) {
 861                 if (!(logf=fopen(logname,"a")))
 862                         error("!Error opening log \"%s\" for append: %m",logname);
 863                 logmsg("Starting up: " PACKAGE " " VERSION);
 864                 }
 865         genpdu();
 866
 867         if (lockfile && *lockfile && VARPRINTF(lockreal,lockfile,devicename)>0) {
 868 time_t start,end;
 869                 if (verbose>=1) error(".Locking device \"%s\" by \"%s\"..",device,lockreal);
 870                 time(&start);
 871                 lockdevice();
 872                 time(&end);
 873                 if ((end-=start)>LOCKREPORT)
 874                         logmsg("Device lock succeeded after %d seconds",end);
 875                 }
 876         if (verbose>=1) error(".Opening device \"%s\"..",device);
 877         if ((devfd=open(device,O_RDWR|O_NDELAY))<0)
 878                 error("!Cannot open device \"%s\" for rw-access: %m",device);
 879
 880         if (tcgetattr(devfd,&restios))
 881                 error("Unable to get termios settings: %m");
 882         else {
 883                 restios.c_cflag=(restios.c_cflag&~(CBAUD|CBAUDEX))|B0|HUPCL;
 884                 restios_yes=1;
 885                 }
 886         tios.c_iflag=IGNBRK|IGNPAR|IXON|IXOFF;
 887         tios.c_oflag=0;
 888         tios.c_cflag=CS8|CREAD|CLOCAL|B19200|HUPCL;
 889         tios.c_lflag=IEXTEN|NOFLSH;
 890         memset(tios.c_cc,_POSIX_VDISABLE,sizeof(tios.c_cc));
 891         tios.c_cc[VTIME]=0;
 892         tios.c_cc[VMIN ]=1;
 893             cfsetispeed(&tios,B19200);
 894         if (cfsetospeed(&tios,B19200)|cfsetispeed(&tios,B19200))
 895                 error("Error setting termios baudrate on device: %m");
 896         if (tcflush(devfd,TCIOFLUSH))
 897                 error("Error flushing termios (TCIOFLUSH) on device: %m");
 898         if (tcsetattr(devfd,TCSANOW,&tios))
 899                 error("!Unable to set initial termios device settings: %m");
 900
 901         signal(SIGALRM,(RETSIGTYPE (*)(int))sigalarm);
 902         do {
 903                 devcmd("",NULL,"\r\nAT\032");
 904                 devcmd(NULL,NULL,"\r\nAT");
 905                 smscset();
 906                 devcmd(NULL,NULL,"\r\nAT+CMGF=0");
 907                 devcmd("\n> ",NULL,"\r\nAT+CMGS=%d",(strlen(pdusmsc)+strlen(pdudata))/2);
 908                 if (!(s=devcmd(NULL,"\n+CMGS:","!%s%s\032",pdusmsc,pdudata))) retrying();
 909                 } while (!s);
 910         while (isspace(*s)) s++;
 911         if (verbose>=1) error("\nMessage successfuly sent with MR: %s",s);
 912         devcmd(NULL,NULL,"\r\nAT");
 913
 914         logmsg("SMS sent (after %d retries), message reference: %s",retrycnt,s);
 915         return(EXIT_SUCCESS);
 916 }