mdsms.c

   1 #include "config.h"
   2 #ifndef lint
   3 static char rcsid[] ATTR_UNUSED = "$Id$";
   4 #endif
   5
   6 /*
   7  * $Log$
   8  * Revision 1.2  1999/06/03 10:38:52  short
   9  * Implemented remaining communication timeouts and maximum retry count.
  10  *
  11  * Revision 1.1.1.1  1999/05/26 13:06:26  short
  12  * First alpha release.
  13  *
  14  */
  15
  16 #include "setup.h"
  17
  18 #include <stdio.h>
  19 #include <stdlib.h>
  20 #include <string.h>
  21 #include <signal.h>
  22 #include <stdarg.h>
  23 #include <limits.h>
  24 #include <ctype.h>
  25 #include <string.h>
  26 #include <termios.h>
  27 #include <unistd.h>
  28 #include <assert.h>
  29 #include <sys/types.h>
  30 #include <sys/stat.h>
  31 #include <fcntl.h>
  32 #include <errno.h>
  33 #include <signal.h>
  34
  35 #ifdef HAVE_GETOPT_LONG
  36 #include <getopt.h>
  37 #else
  38 #include "getopt.h"
  39 #endif
  40
  41 #if 0
  42 char *strdup(const char *s);
  43 int kill(pid_t pid,int sig);
  44 int snprintf(char *str,size_t n,const char *format,...);
  45 int vsnprintf(char *str,size_t n,const char *format,va_list ap);
  46 void usleep(unsigned long usec);
  47 #endif
  48
  49 #define NELEM(x) (sizeof((x))/sizeof(*(x)))
  50
  51 #ifndef DEBUG
  52 #define dbg(cmd)
  53 #else
  54 #define dbg(cmd) cmd
  55 #endif
  56 /* ANSI C does not allow macro with variable arguments */
  57 #define dO stderr
  58 #define dB(a) dbg(fprintf a)
  59
  60 #define d1(n1)          dB((dO,n1         ))
  61 #define d2(n1,n2)       dB((dO,n1,n2      ))
  62 #define d3(n1,n2,n3)    dB((dO,n1,n2,n3   ))
  63 #define d4(n1,n2,n3,n4) dB((dO,n1,n2,n3,n4))
  64
  65 static const char version[]="This is MobilDock SMS sender (" PACKAGE " " VERSION ")\n";
  66
  67 static int verbose
  68 #ifdef DEBUG
  69         =0xFFFF
  70 #endif
  71         ;
  72 static char *pname;
  73 static int dis_cleanup=0,devfd=-1;
  74
  75 static char *phone,*body,*device,*lockfile,*smsc,*maxretry,*readtime,*chartime,*cmdtime;
  76 static int readbody;
  77 static long maxretryn=DEF_MAXRETRY,readtimen=DEF_READTIME,chartimen=DEF_CHARTIME,cmdtimen=DEF_CMDTIME;
  78 static size_t bodylen;
  79
  80 static char *devicename; /* path stripped */
  81 static char lockreal[512],locked;
  82
  83 static struct termios restios;
  84 static char restios_yes;
  85
  86 static void error(const char *fmt,...)
  87 {
  88 va_list ap;
  89 char fatal=*fmt;
  90 #ifndef PRINTF_WORKS_PM
  91 char pm,*nfmt;
  92 size_t fmtl;
  93 #endif
  94
  95         if (fatal=='!' || fatal=='.' || fatal=='\n') fmt++;
  96         else fatal=0;
  97
  98 #ifndef PRINTF_WORKS_PM
  99         if (!(nfmt=strdup(fmt))) return;
 100         fmtl=strlen(fmt);
 101         if ((pm=(fmtl>=2 && !strcmp(fmt+fmtl-2,"%m")))) nfmt[fmtl-2]='\0';
 102 #endif
 103
 104         fprintf(stderr,"%s: ",pname);
 105         va_start(ap,fmt);
 106         vfprintf(stderr,
 107 #ifdef PRINTF_WORKS_PM
 108                 fmt
 109 #else
 110                 nfmt
 111 #endif
 112                 ,ap);
 113         va_end(ap);
 114
 115 #ifndef PRINTF_WORKS_PM
 116         if (pm) {
 117                 fputs(strerror(errno),stderr);
 118                 free(nfmt);
 119                 }
 120 #endif
 121
 122         if (fatal!='\n') fputc((fatal=='.'?'.':'!'),stderr);
 123         fputc('\n',stderr);
 124         if (fatal=='!') exit(EXIT_FAILURE);
 125 }
 126
 127 static void chk(void *p)
 128 {
 129         if (p) return;
 130         error("!Virtual memory exhausted");
 131 }
 132
 133 static void cleanup(void)
 134 {
 135         d1("cleanup()\n");
 136         if (dis_cleanup) return;
 137         if (restios_yes) {
 138                 if (tcsetattr(devfd,TCSANOW,&restios))
 139                         error("Error restoring termios for device: %m");
 140                 restios_yes=0;
 141                 }
 142         if (locked && *lockreal) {
 143                 d2("Removing lockfile \"%s\"\n",lockreal);
 144                 if (unlink(lockreal))
 145                         error("Error removing my device lockfile \"%s\": %m",lockreal);
 146                 locked=0;
 147                 }
 148         dis_cleanup=1;
 149         exit(EXIT_FAILURE);
 150 }
 151
 152 static void usage(void)
 153 {
 154         fprintf(stderr,"\
 155 \n\
 156 %s\
 157 \n\
 158 Usage: " PACKAGE " [-c|--config <cfgfile>] [-d|--device <device>]\n\
 159              [-l|--lockfile <lock>] [-s|--smsc <smsc #>] [-m|--maxretry <#>]\n\
 160              [-r|--readtime <sec>] [-t|--chartime <msec>] [-T|--cmdtime <msec>]\n\
 161              [-f|--file] [-v|--verbose] [-h|--help] [-V|--version]\n\
 162              <dest. phone> <msg text|msg filename>\n\
 163 \n\
 164  -c, --config\tRead this additional config file\n\
 165 \t\t(def. \"" CONFIG_MAIN "\" and \"$HOME" CONFIG_HOME "\")\n\
 166  -d, --device\tMobilDock on this serial device (def. \"" DEF_DEVICE "\")\n\
 167  -l, --lockfile\tLock serial port by this file, \"%%s\" is basename of device\n\
 168 \t\t(def. \"%s\")\n\
 169  -s, --smsc\tUse this SMS Center number (def. query from Siemens A1)\n\
 170  -m, --maxretry\tMaximum retries of any command before giving up (def. %d)\n\
 171  -r, --readtime\tSeconds for maximum wait time for response (def. %ds)\n\
 172  -t, --chartime\tMilliseconds between each char on baud 19200 (def. %dms)\n\
 173  -T, --cmdtime\tMilliseconds before each whole AT command (def. %dms)\n\
 174  -f, --file\tRead contents of message from file instead\n\
 175  -v, --verbose\tIncrease verbosity level, more \"-v\"s give more messages\n\
 176  -h, --help\tPrint a summary of the options\n\
 177  -V, --version\tPrint the version number\n\
 178 \n",version,DEF_LOCKFILE,DEF_MAXRETRY,DEF_READTIME,DEF_CHARTIME,DEF_CMDTIME);
 179         exit(EXIT_FAILURE);
 180 }
 181
 182 static const struct option longopts[]={
 183 {"config"  ,1,0,'c'},
 184 {"device"  ,1,0,'d'},
 185 {"lockfile",1,0,'l'},
 186 {"smsc"    ,1,0,'s'},
 187 {"maxretry",1,0,'m'},
 188 {"readtime",1,0,'r'},
 189 {"chartime",1,0,'t'},
 190 {"cmdtime" ,1,0,'T'},
 191 {"file"    ,0,0,'f'},
 192 {"verbose" ,0,0,'v'},
 193 {"help"    ,0,0,'h'},
 194 {"version" ,0,0,'V'}};
 195
 196 static void processargs(int argp,char **args,const char *from);
 197
 198 static char *cfgstack[MAXCFGLOOP];
 199 static unsigned cfgstacki=0;
 200
 201 static void chkfclose(FILE *f,const char *fname)
 202 {
 203         if (fclose(f))
 204                 error("Error closing \"%s\": %m",fname);
 205 }
 206
 207 static void readfile(const char *fname,char quiet)
 208 {
 209 FILE *f;
 210 size_t got;
 211 char *args[MAXCFGARGS],*d,*s,blank,quote;
 212 unsigned argp;
 213 char *buf;
 214 long size;
 215 static unsigned tot=0;
 216
 217         if (tot++>=MAXCFGNUM) {
 218                 if (tot==MAXCFGNUM+1) error("Too many config files to read, max is %d, break-out",MAXCFGNUM);
 219                 return;
 220                 }
 221         if (!(f=fopen(fname,"rt"))) {
 222                 if (!quiet) error("Can't open config file \"%s\" for r/o: %m",fname);
 223                 return;
 224                 }
 225         if (verbose>=2) error(".Reading config file \"%s\"",fname);
 226         if (fseek(f,0,SEEK_END))
 227                 error("Error seeking to end of \"s\": %m",fname);
 228         if ((size=ftell(f))<0)
 229                 size=0,error("Error measuring \"%s\": %m",fname);
 230         if (size>MAXCONFIG)
 231                 error("File \"%s\" is too long, read only %ld bytes",fname,MAXCONFIG);
 232         chk(buf=malloc((size?size:MAXCONFIG)+1));
 233         rewind(f);
 234         got=fread(buf,1,(size?size:MAXCONFIG),f);
 235         if (size && got!=size)
 236                 error("File \"%s\" read error, got only %u bytes of %ld",fname,got,size);
 237         chkfclose(f,fname);
 238         buf[got]='\0';
 239         args[0]=pname;
 240         for (argp=1,d=s=buf,blank=1,quote=0;s<buf+got;s++) {
 241 char c=*s;
 242
 243                 if (!quote && isspace(c)) {
 244                         if (!blank) {
 245                                 *d='\0';
 246                                 blank=1;
 247                                 if (verbose>=2) error("\nConfig \"%s\": arg#%d: %s",fname,argp-1,args[argp-1]);
 248                                 }
 249                         continue;
 250                         }
 251                 if (blank) {
 252                         if (argp>=NELEM(args)-1) {
 253                                 error("Too many arguments in \"%s\", from offset %d ignored",fname,s-buf);
 254                                 break;
 255                                 }
 256                         args[argp++]=s;
 257                         d=s;
 258                         blank=0;
 259                         }
 260                 if (c=='\\') { *d++=*++s; continue; }
 261                 if (c=='"' || c=='\'') {
 262                         if (!quote   ) { quote=c; continue; }
 263                         if ( quote==c) { quote=0; continue; }
 264                         /* FALLTHRU */
 265                         }
 266                 *d++=c;
 267                 }
 268         args[argp]=NULL;
 269         processargs(argp,args,fname);
 270         free(buf);
 271 }
 272
 273 static struct {
 274         const char c;
 275         char **const var;
 276         unsigned stamp;
 277         } optset[]={
 278                 { 'd',&device   },
 279                 { 'l',&lockfile },
 280                 { 's',&smsc     },
 281                 { 'm',&maxretry },
 282                 { 'r',&readtime },
 283                 { 't',&chartime },
 284                 { 'T',&cmdtime  },
 285         };
 286
 287 static void processargs(int argp,char **args,const char *from)
 288 {
 289 int optc;
 290 static unsigned seq=0;
 291 int i;
 292
 293         seq++;
 294         optarg=NULL; optind=0; /* FIXME: Possible portability problem. */
 295         while ((optc=getopt_long(argp,args,"c:d:l:s:m:r:t:T:fvhV",longopts,NULL))!=EOF) switch (optc) {
 296                 case 'c':
 297                         if (cfgstacki>=NELEM(cfgstack)) {
 298                                 error("Looping (%d) during attempt to read config file \"%s\", break-out",NELEM(cfgstack),optind);
 299                                 break;
 300                                 }
 301                         chk(cfgstack[cfgstacki++]=strdup(optarg));
 302                         break;
 303                 case 'd': case 'l': case 's': case 'm': case 'r': case 't': case 'T':
 304                         for (i=0;i<NELEM(optset);i++)
 305                                 if (optset[i].c==optc) {
 306                                         if (optset[i].stamp && optset[i].stamp!=seq) {
 307                                                 assert(!!*optset[i].var);
 308                                                 break;
 309                                                 }
 310                                         free(*optset[i].var);
 311                                         chk(*optset[i].var=strdup(optarg));
 312                                         optset[i].stamp=seq;
 313                                         break;
 314                                         }
 315                         assert(i<NELEM(optset));
 316                         break;
 317                 case 'f':
 318                         readbody++;
 319                         break;
 320                 case 'v':
 321                         verbose++;
 322                         break;
 323                 case 'V':
 324                         fprintf(stderr,version);
 325                         exit(EXIT_FAILURE);
 326                 default:
 327                         if (optc!='h')
 328                                 error("\nLast getopt(3) error occured during parsing option %d from \"%s\"! Follows help:",optind-1,from);
 329                         usage();
 330                         break;
 331                 }
 332         if (!phone && optind<argp)
 333                 chk(phone=strdup(args[optind++]));
 334         if (!body && optind<argp) {
 335 char *d;
 336 int i;
 337
 338                 for (i=optind,bodylen=argp-optind;i<argp;i++)
 339                         bodylen+=strlen(args[i]);
 340                 chk(body=malloc(bodylen));
 341                 for (d=body,i=optind;i<argp;i++) {
 342 size_t l=strlen(args[i]);
 343                         memcpy(d,args[i],l);
 344                         d+=l;
 345                         *d++=' ';
 346                         assert(d<=body+bodylen);
 347                         }
 348                 assert(d==body+bodylen);
 349                 d[-1]='\0';
 350                 bodylen--;
 351                 }
 352         while (cfgstacki) {
 353 char *s=cfgstack[--cfgstacki];
 354
 355                 assert(cfgstacki>=0);
 356                 readfile(s,0);
 357                 free(s);
 358                 assert(cfgstacki>=0 && cfgstacki<NELEM(cfgstack));
 359                 }
 360 }
 361
 362 static const struct {
 363         char **var;
 364         const char *name;
 365         } nullcheck[]={
 366                 {&phone,"destination phone number"},
 367 #if 0
 368                 {&body ,"body text"},
 369                 {&device,"device for communication"},
 370 #endif
 371         };
 372 static char **emptycheck[]={&smsc,&body};
 373
 374 static void lockclose(int fd)
 375 {
 376         if (close(fd))
 377                 error("Error closing lockfile \"%s\"",lockreal);
 378 }
 379
 380 static inline void lockdevice(void)
 381 {
 382 int fd=-1;
 383 char buf[64];
 384 ssize_t got;
 385 int delay=0;
 386 char empty=0;
 387 pid_t pid;
 388
 389         for (;;) {
 390                 if (fd!=-1) lockclose(fd);
 391 recheck:
 392                 if (delay) sleep(delay);
 393                 delay=DEVLOCK_PERIOD;
 394                 if (verbose>=3) error(".Checking the lockfile \"%s\"..",lockreal);
 395                 if ((fd=open(lockreal,O_RDONLY))==-1) break;
 396                 if ((got=read(fd,buf,sizeof(buf)-1))<=0) {
 397 isempty:
 398                         if (empty>=DEVLOCK_MAXEMPTY) {
 399                                 error(".Lockfile \"%s\" is still not valid, removing it",lockreal);
 400                                 goto remove;
 401                                 }
 402                         empty++;
 403                         continue;
 404                         }
 405                 assert(got<sizeof(buf));
 406                 buf[got]='\0';
 407                 if (sscanf(buf,"%d",&pid)!=1) goto isempty;
 408                 empty=0;
 409                 errno=0;
 410                 if (kill(pid,0) && errno!=ESRCH && errno!=EPERM)
 411                         error("Error during checking consciousness of PID %d: %m",pid);
 412                 if (errno!=ESRCH) continue;
 413                 error(".Lockfile \"%s\" is stale (PID %d), removing it",lockreal,pid);
 414 remove:
 415                 lockclose(fd);
 416                 if (unlink(lockreal))
 417                         error("Error removing foreign lockfile \"%s\": %m",lockreal);
 418                 break;
 419                 }
 420         errno=0;
 421         if ((fd=open(lockreal,O_WRONLY|O_CREAT|O_EXCL,0644))==-1) {
 422                 if (errno==EEXIST) goto recheck;
 423                 error("!Error creating lockfile \"%s\": %m",lockreal);
 424                 }
 425         locked=1;
 426         got=VARPRINTF(buf,"%010d\n",getpid()); assert(got==11);
 427         if (write(fd,buf,got)!=got)
 428                 error("!Error writing data to lockfile \"%s\": %m",lockreal);
 429         lockclose(fd);
 430 }
 431
 432 static void sigalarm(int signo)
 433 {
 434         signal(SIGALRM,(RETSIGTYPE (*)(int))sigalarm);
 435         if (verbose>=1) error("Timed out");
 436 }
 437
 438 static void blocking(char yes)
 439 {
 440 static char state=-1;
 441         if (state==yes) return;
 442         if (fcntl(devfd,F_SETFL,(yes?0:O_NONBLOCK)))
 443                 error("!fcntl() on device for %sblocking mode: %m",(yes?"":"non-"));
 444         state=yes;
 445 }
 446
 447 static const char *record;
 448 static char *catchdata;
 449 static size_t catchdatal,catchdatasiz;
 450
 451 static void catched(const char *end)
 452 {
 453 size_t len;
 454 void *p;
 455
 456         if (!record) return;
 457         assert(end>=record);
 458         if ((p=memchr(record,'\n',end-record))) end=p;
 459         if ((len=end-record)) {
 460                 if (catchdatal+len>catchdatasiz)
 461                         chk(catchdata=realloc(catchdata,
 462                                 (catchdatasiz=MAX(LINE_MAX,(catchdatal+len)*2))));
 463                 memcpy(catchdata+catchdatal,record,len);
 464                 catchdatal+=len;
 465                 }
 466         record=(p?NULL:end);
 467         assert(catchdatal<=catchdatasiz);
 468 }
 469
 470 static void retrying(void)
 471 {
 472 static int cnt=0;
 473
 474         if (++cnt>maxretryn) error("!Maximum command retry count (%d) exceeded",maxretryn);
 475         if (verbose>=2) error(".Retrying phase, %d out of %d..",cnt,maxretryn);
 476 }
 477
 478 static char *devcmd(const char *term,const char *catch,const char *send,...)
 479 {
 480 size_t l,bufl,terml,catchl,fragl,offs;
 481 char buf[LINE_MAX];
 482 ssize_t got;
 483 char *hit,*s;
 484 va_list ap;
 485 char errout;
 486
 487         if (!term) term="\nOK\n";
 488         if ((errout=(*send=='!'))) send++;
 489         if (0) {
 490 err:
 491                 alarm(0);
 492                 if (errout) return(NULL);
 493                 retrying();
 494                 }
 495         catchdatal=0;
 496         va_start(ap,send);
 497         l=VARVPRINTF(buf,send,ap); bufl=l+1;
 498         va_end(ap);
 499         if (bufl>=sizeof(buf)-1) error("!Command too big (%d>%d)",bufl,sizeof(buf)-1);
 500         if (verbose>=2) error(".devcmd(send=\"%s\",term=\"%s\",catch=\"%s\")",buf,term,catch);
 501         buf[l]='\r'; buf[l+1]='\n';
 502         for (offs=0,got=0;offs<bufl;offs++) {
 503                 alarm(MAXSENDTIME);
 504                 usleep((offs?chartimen:cmdtimen)*1000);
 505                 if (!offs && tcflush(devfd,TCIOFLUSH))
 506                         error("Error flushing I/O queue of device: %m");
 507                 if (write(devfd,buf+offs,1)!=1) break;
 508                 got++;
 509                 if (tcdrain(devfd))
 510                         error("Error forcing output of char %d of cmd \"%s\": %m",offs,buf);
 511                 }
 512         alarm(0);
 513         if (got!=bufl) {
 514                 error("Wrote only %d of %d bytes of command: %m",got,bufl);
 515                 goto err;
 516                 }
 517
 518         if (!(terml=strlen(term))) {
 519                 assert(!catch);
 520                 return(NULL);
 521                 }
 522         if (catch) {
 523                 catchl=strlen(catch);
 524                 fragl=MAX(terml,catchl);
 525                 }
 526         else fragl=terml;
 527         fragl=MAX(fragl,MAX(strlen(ERROR_SUBSTR1),strlen(ERROR_SUBSTR2)));
 528         bufl=0;
 529         record=NULL;
 530         alarm(readtimen);
 531         for (;;) {
 532                 blocking(0);
 533                 errno=0;
 534                 got=read(devfd,buf+bufl,sizeof(buf)-1-bufl);
 535                 if (got==-1 && errno==EAGAIN) {
 536                         blocking(1);
 537                         errno=0;
 538                         got=read(devfd,buf+bufl,1);
 539                         }
 540                 if (got<=0) {
 541                         error("Could read device data (ret=%d): %m",got);
 542                         goto err;
 543                         }
 544                 s=buf+bufl;
 545                 bufl+=got;
 546                 /* FIXME: '\0' conversion */
 547                 while (buf+bufl>s && (s=memchr(s,'\r',buf+bufl-s))) *s='\n';
 548                 catched(buf+bufl); assert(!record || record==buf+bufl);
 549                 assert(bufl<sizeof(buf));
 550                 if (bufl>=fragl) {
 551                         buf[bufl]='\0';
 552                         assert(strlen(buf)==bufl);
 553                         /* d3(">%s|%s<\n",buf,term); */
 554                         if (strstr(buf,ERROR_SUBSTR1) || strstr(buf,ERROR_SUBSTR2)) {
 555                                 error("Found ERROR response on command \"%s\"",send);
 556                                 goto err;
 557                                 }
 558                         if (catch && bufl>=catchl && (hit=strstr(buf,catch))) {
 559                                 record=hit+catchl;
 560                                 catched(buf+bufl); assert(!record || record==buf+bufl);
 561                                 }
 562                         if (         bufl>= terml && (hit=strstr(buf,term))) break;
 563                         memmove(buf,buf+bufl-(fragl-1),fragl-1);
 564                         bufl=fragl-1;
 565                         if (record) record=buf+bufl;
 566                         }
 567                 }
 568         alarm(0);
 569         if (!catchdatal) {
 570                 if (!catch) return(NULL);
 571                 error("Data requested on command \"%s\" but no found after term \"%s\"",send,term);
 572                 goto err;
 573                 }
 574         assert(!!catch);
 575         record=buf;
 576         buf[0]='\0';
 577         catched(buf+1);
 578         if (verbose>=2) error(".Returning data \"%s\" for cmd \"%s\"",catchdata,send);
 579         return(catchdata);
 580 }
 581
 582 static int prepaddr(unsigned char *d,const char *addr)
 583 {
 584 int tot=0;
 585 char flip=0,plus;
 586 unsigned char n;
 587
 588         if ((plus=(*addr=='+'))) addr++;
 589         *++d=(plus?ADDR_INT:ADDR_NAT);
 590         while (*addr) {
 591                 if (*addr<'0' || *addr>'9')
 592                         error("!Error during conversion of number at: %s",addr);
 593                 tot++;
 594                 n=(*addr++)-'0';
 595                 if ((flip=!flip)) *++d=0xF0|n;
 596                 else *d=(*d&0x0F)|(n<<4U);
 597                 }
 598         return(tot);
 599 }
 600
 601 static char *finalsmsc;
 602 #define SMSCBINSIZE (1+1+(MAXNUMLEN+1)/2)
 603 static char pdusmsc[SMSCBINSIZE*2+1];
 604
 605 static inline char tohex(unsigned char x)
 606 {
 607         x&=0x0F;
 608         if (x<10) return(x   +'0');
 609                   return(x-10+'A');
 610 }
 611
 612 static void textconv(char *d,unsigned char *s,size_t len)
 613 {
 614         while (len--) {
 615                 *d++=tohex(*s>>4U);
 616                 *d++=tohex(*s    );
 617                 s++;
 618                 }
 619         *d='\0';
 620 }
 621
 622 static inline void smscset(void)
 623 {
 624 char *s,*t,*e,*serr;
 625 long l;
 626 unsigned char bin[2+(MAXNUMLEN+1)/2];
 627
 628         if (smsc) devcmd(NULL,NULL,"\r\nAT+CSCA=\"%s\"",smsc);
 629         s=devcmd(NULL,"\n+CSCA:","\r\nAT+CSCA?");
 630         while (isspace(*s)) s++;
 631         if (!*s || !strcmp(s,"EMPTY"))
 632                 error("!No SMS set in A1 found");
 633         if (verbose>=1) error("\nFound default SMSC in A1: %s",s);
 634         if (*s!='"') error("!No left-quote found in: %s",s);
 635         if (!(t=strrchr(s+1,'"'))) error("!No right-quote found in: %s",s);
 636         e=t++;
 637         while (isspace(*t)) t++;
 638         if (*t++!=',') error("!No comma found after quotes in: %s",s);
 639         while (isspace(*t)) t++;
 640         l=strtol(t,&serr,10);
 641         if ((l!=ADDR_NAT && l!=ADDR_INT) || (serr && *serr))
 642                 error("!Type parse error in: %s",s);
 643         if (l==ADDR_NAT || s[1]=='+') s++;
 644         else *s='+';
 645         *e='\0';
 646         chk(finalsmsc=strdup(s));
 647         if (verbose>=2) error("\nDecoded SMSC address: %s",finalsmsc);
 648         bin[0]=1+(prepaddr(bin,finalsmsc)+1)/2;
 649         textconv(pdusmsc,bin,bin[0]+1);
 650 }
 651
 652 static char *pdudata;
 653
 654 static inline unsigned char charconv(char c,size_t offs)
 655 {
 656         if ((c>='A' && c<='Z') || (c>='a' && c<='z') || (c>='0' && c<='9')) return(c);
 657         switch (c) {
 658                 case '@': return(0);
 659                 case '$': return(2);
 660                 case '"': return(96);
 661                 case ' ':
 662                         return(c);
 663                 case 0: assert(0);
 664                 }
 665         error("Can't convert character '%c' (0x%02X) at offs %d (0-based), substituted '?'",
 666                 c,(unsigned char)c,offs);
 667         return('?');
 668 }
 669
 670 static inline void genpdu(void)
 671 {
 672 static unsigned char pdu[64+MAXNUMLEN/2+(MAXBODYLEN*7)/8];
 673 unsigned char *d=pdu;
 674 int i;
 675 char inb=0,outb=0,xb;
 676 unsigned char inreg;
 677 size_t offs=0;
 678
 679         *d++=PDU_TYPE;
 680         *d++=PDU_MR;
 681         i=prepaddr(d,phone);
 682         *d=i; d+=1+1+(i+1)/2;
 683         *d++=PDU_PID;
 684         *d++=PDU_DCS;
 685         *d++=PDU_VP;
 686         if (bodylen>MAXBODYLEN) {
 687                 error("Body too large (%d>%d), cut",bodylen,MAXBODYLEN);
 688                 bodylen=MAXBODYLEN;
 689                 }
 690         *d=bodylen;
 691         assert(d<pdu+sizeof(pdu));
 692         while (bodylen || inb) {
 693                 if (!inb) {
 694                         assert(bodylen>0); assert(!!*body);
 695                         inreg=charconv(*body++,offs++);
 696                         bodylen--;
 697                         inb=7;
 698                         }
 699                 if (!outb) {
 700                         *++d=0x00;
 701                         outb=8;
 702                         }
 703                 xb=MIN(inb,outb);
 704                 d4("inb=%d,outb=%d,xb=%d\n",inb,outb,xb);
 705                 *d|=((inreg>>(unsigned)(7-inb))&((1<<xb)-1))<<(unsigned)(8-outb);
 706                 inb-=xb; outb-=xb;
 707                 }
 708         d++;
 709         assert(d<pdu+sizeof(pdu));
 710         pdudata=malloc(2*(d-pdu)+1);
 711         textconv(pdudata,pdu,d-pdu);
 712 }
 713
 714 static struct {
 715         char **sp;
 716         long *ip;
 717         const char *const msg;
 718         } numarg[]={
 719                 { &maxretry,&maxretryn,"maxretry" },
 720                 { &readtime,&readtimen,"readtime" },
 721                 { &chartime,&chartimen,"chartime" },
 722                 { &cmdtime ,&cmdtimen ,"cmdtime"  },
 723         };
 724
 725 int main(int argc,char **argv)
 726 {
 727 char *s,*finame;
 728 FILE *fin;
 729 int i;
 730 unsigned fatal=0;
 731 struct termios tios;
 732
 733         pname=*argv;
 734         atexit(cleanup);
 735         signal(SIGTERM,(RETSIGTYPE (*)(int))cleanup);
 736         signal(SIGQUIT,(RETSIGTYPE (*)(int))cleanup);
 737         signal(SIGINT ,(RETSIGTYPE (*)(int))cleanup);
 738         signal(SIGHUP ,(RETSIGTYPE (*)(int))cleanup);
 739         processargs(argc,argv,"<command-line>");
 740         if ((s=getenv("HOME"))) {
 741 size_t l=strlen(s);
 742 char *buf=malloc(l+50);
 743
 744                 memcpy(buf,s,l);
 745                 strcpy(buf+l,CONFIG_HOME);
 746                 readfile(buf,1);
 747                 free(buf);
 748                 }
 749         readfile(CONFIG_MAIN,1);
 750
 751         for (i=0;i<NELEM(nullcheck);i++)
 752                 if (!*nullcheck[i].var) {
 753                         error("Missing parameter \"%s\"",nullcheck[i].name);
 754                         fatal++;
 755                         }
 756         if (fatal) error("!Previous error%s considered unrecoverable",(fatal==1?"":"s"));
 757         for (i=0;i<NELEM(emptycheck);i++)
 758                 if (*emptycheck[i] && !**emptycheck[i]) {
 759                         free(*emptycheck[i]);
 760                              *emptycheck[i]=NULL;
 761                         }
 762         if (!lockfile) lockfile=DEF_LOCKFILE;
 763         if (!device) device=DEF_DEVICE;
 764         if (body && readbody) {
 765                 finame=body;
 766                 body=NULL;
 767                 }
 768         else fin=stdin;
 769         if (!body) {
 770                 readbody=0;
 771                 if (verbose>=1)
 772                         error("\nPlease enter the SMS text body, end with EOF (ctrl-D):");
 773                 chk(body=malloc(BODYLOAD));
 774                 bodylen=fread(body,1,BODYLOAD,fin);
 775                 if (bodylen==-1)
 776                         error("!Error reading stream \"%s\": %m",(finame?finame:"<stdin>"));
 777                 }
 778         if (fin!=stdin) {
 779                 chkfclose(fin,finame);
 780                 free(finame);
 781                 }
 782
 783         for (i=0;i<NELEM(numarg);i++) {
 784 char *serr;
 785                 if (!*numarg[i].sp) continue;
 786                 *numarg[i].ip=strtol(*numarg[i].sp,&serr,0);
 787                 if (*numarg[i].ip<0 || *numarg[i].ip>=LONG_MAX || !serr || *serr)
 788                         error("!Number parse error for parameter \"%s\" of \"%s\" at: %s",
 789                                 numarg[i].msg,*numarg[i].sp,serr);
 790                 }
 791
 792         if (!strchr(device,'/')) {
 793 size_t l=strlen(device);
 794                 chk(s=malloc(5+l+1));
 795                 strcpy(s,"/dev/");
 796                 strcpy(s+5,device);
 797                 free(device);
 798                 device=s;
 799                 }
 800         devicename=strrchr(device,'/')+1; assert(!!(devicename-1));
 801         for (i=0,s=lockfile;*s;s++) {
 802                 if (*s!='%') continue;
 803                 s++;
 804                 if (*s=='%') continue;
 805                 if (*s=='s') {
 806                         if (i) error("!Only one \"%%s\" permitted in lockfile format-string");
 807                         i=1; continue;
 808                         }
 809                 error("!Invalid format-character '%c' in lockfile format-string, only \"%%s\" allowed",*s);
 810                 }
 811         genpdu();
 812
 813         if (lockfile && *lockfile && VARPRINTF(lockreal,lockfile,devicename)>0) {
 814                 if (verbose>=1) error(".Locking device \"%s\" by \"%s\"..",device,lockreal);
 815                 lockdevice();
 816                 }
 817         if (verbose>=1) error(".Opening device \"%s\"..",device);
 818         if ((devfd=open(device,O_RDWR|O_NDELAY))<0)
 819                 error("!Cannot open device \"%s\" for rw-access: %m",device);
 820
 821         if (tcgetattr(devfd,&restios))
 822                 error("Unable to get termios settings: %m");
 823         else {
 824                 restios.c_cflag=(restios.c_cflag&~(CBAUD|CBAUDEX))|B0|HUPCL;
 825                 restios_yes=1;
 826                 }
 827         tios.c_iflag=IGNBRK|IGNPAR|IXON|IXOFF;
 828         tios.c_oflag=0;
 829         tios.c_cflag=CS8|CREAD|CLOCAL|B19200|HUPCL;
 830         tios.c_lflag=IEXTEN|NOFLSH;
 831         memset(tios.c_cc,_POSIX_VDISABLE,sizeof(tios.c_cc));
 832         tios.c_cc[VTIME]=0;
 833         tios.c_cc[VMIN ]=1;
 834         if (tcflush(devfd,TCIOFLUSH))
 835                 error("Error flushing termios (TCIOFLUSH) on device: %m");
 836         if (tcsetattr(devfd,TCSANOW,&tios))
 837                 error("!Unable to set initial termios device settings");
 838
 839         signal(SIGALRM,(RETSIGTYPE (*)(int))sigalarm);
 840         do {
 841                 devcmd("",NULL,"\r\nAT\x1A");
 842                 devcmd(NULL,NULL,"\r\nAT");
 843                 smscset();
 844                 devcmd(NULL,NULL,"\r\nAT+CMGF=0");
 845                 devcmd("\n> ",NULL,"\r\nAT+CMGS=%d",(strlen(pdusmsc)+strlen(pdudata))/2);
 846                 if (!(s=devcmd(NULL,"\n+CMGS:","!%s%s\x1A",pdusmsc,pdudata))) retrying();
 847                 } while (!s);
 848         while (isspace(*s)) s++;
 849         if (verbose>=1) error("\nMessage successfuly sent with MR: %s",s);
 850         devcmd(NULL,NULL,"\r\nAT");
 851
 852         return(EXIT_SUCCESS);
 853 }