mdsms.c

   1 #include "config.h"
   2 #ifndef lint
   3 static char rcsid[] ATTR_UNUSED = "$Id$";
   4 #endif
   5
   6 /*
   7  * $Log$
   8  * Revision 1.5  1999/07/19 10:02:51  short
   9  * Removed '\xXY' chars for compatibility with Digital UNIX vendor "cc".
  10  *
  11  * Revision 1.4  1999/07/14 01:01:11  short
  12  * Termios made compatible with Digital UNIX 4.0, cfset[io]speed() missing.
  13  *
  14  * Revision 1.3  1999/06/03 11:46:41  short
  15  * Logging (--log) implemented.
  16  *
  17  * Revision 1.2  1999/06/03 10:38:52  short
  18  * Implemented remaining communication timeouts and maximum retry count.
  19  *
  20  * Revision 1.1.1.1  1999/05/26 13:06:26  short
  21  * First alpha release.
  22  *
  23  */
  24
  25 #include "setup.h"
  26
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30 #include <signal.h>
  31 #include <stdarg.h>
  32 #include <limits.h>
  33 #include <ctype.h>
  34 #include <string.h>
  35 #include <termios.h>
  36 #include <unistd.h>
  37 #include <assert.h>
  38 #include <sys/types.h>
  39 #include <sys/stat.h>
  40 #include <fcntl.h>
  41 #include <errno.h>
  42 #include <signal.h>
  43 #include <time.h>
  44
  45 #ifdef HAVE_GETOPT_LONG
  46 #include <getopt.h>
  47 #else
  48 #include "getopt.h"
  49 #endif
  50
  51 #if 0
  52 char *strdup(const char *s);
  53 int kill(pid_t pid,int sig);
  54 int snprintf(char *str,size_t n,const char *format,...);
  55 int vsnprintf(char *str,size_t n,const char *format,va_list ap);
  56 void usleep(unsigned long usec);
  57 #endif
  58
  59 #define NELEM(x) (sizeof((x))/sizeof(*(x)))
  60
  61 #ifndef DEBUG
  62 #define dbg(cmd)
  63 #else
  64 #define dbg(cmd) cmd
  65 #endif
  66 /* ANSI C does not allow macro with variable arguments */
  67 #define dO stderr
  68 #define dB(a) dbg(fprintf a)
  69
  70 #define d1(n1)          dB((dO,n1         ))
  71 #define d2(n1,n2)       dB((dO,n1,n2      ))
  72 #define d3(n1,n2,n3)    dB((dO,n1,n2,n3   ))
  73 #define d4(n1,n2,n3,n4) dB((dO,n1,n2,n3,n4))
  74
  75 static const char version[]="This is MobilDock SMS sender (" PACKAGE " " VERSION ")\n";
  76
  77 static int verbose
  78 #ifdef DEBUG
  79         =0xFFFF
  80 #endif
  81         ;
  82 static char *pname;
  83 static int dis_cleanup=0,devfd=-1;
  84
  85 static char *phone,*body,*device,*logname,*lockfile,*smsc,*maxretry,*readtime,*chartime,*cmdtime;
  86 static int readbody;
  87 static long maxretryn=DEF_MAXRETRY,readtimen=DEF_READTIME,chartimen=DEF_CHARTIME,cmdtimen=DEF_CMDTIME;
  88 static size_t bodylen;
  89
  90 static char *devicename; /* path stripped */
  91 static char lockreal[512],locked;
  92
  93 static struct termios restios,tios;
  94 static char restios_yes;
  95 static FILE *logf;
  96
  97 static void vlogmsg(
  98 #ifndef PRINTF_WORKS_PM
  99                 char outerr,
 100 #endif
 101                 const char *fmt,va_list ap)
 102 {
 103 time_t stamp;
 104 char *ctm,*s;
 105 pid_t mypid=-1;
 106 char host[LINE_MAX];
 107
 108         if (!logf) return;
 109         if (mypid==-1) {
 110                 mypid=getpid();
 111                 if (gethostname(host,sizeof(host))) strcpy(host,"<ERROR>");
 112                 }
 113         time(&stamp);
 114         ctm=ctime(&stamp);
 115         if ((s=strchr(ctm,'\n'))) *s='\0';
 116         fprintf(logf,"%s %s %s[%d]: ",ctm,host,pname,mypid);
 117         vfprintf(logf,fmt,ap);
 118 #ifndef PRINTF_WORKS_PM
 119         if (outerr) fputs(strerror(errno),logf);
 120 #endif
 121         fputc('\n',logf);
 122         fflush(logf);
 123 }
 124
 125 static void logmsg(const char *fmt,...)
 126 {
 127 va_list ap;
 128         va_start(ap,fmt);
 129         vlogmsg(
 130 #ifndef PRINTF_WORKS_PM
 131                 0,
 132 #endif
 133                 fmt,ap);
 134         va_end(ap);
 135 }
 136
 137 static void error(const char *fmt,...)
 138 {
 139 va_list ap;
 140 char fatal=*fmt;
 141 #ifndef PRINTF_WORKS_PM
 142 char pm,*nfmt;
 143 size_t fmtl;
 144 #endif
 145
 146         if (fatal=='!' || fatal=='.' || fatal=='\n') fmt++;
 147         else fatal=0;
 148
 149 #ifndef PRINTF_WORKS_PM
 150         if (!(nfmt=strdup(fmt))) return;
 151         fmtl=strlen(fmt);
 152         if ((pm=(fmtl>=2 && !strcmp(fmt+fmtl-2,"%m")))) nfmt[fmtl-2]='\0';
 153 #endif
 154
 155         fprintf(stderr,"%s: ",pname);
 156         va_start(ap,fmt);
 157         vfprintf(stderr,
 158 #ifdef PRINTF_WORKS_PM
 159                 fmt
 160 #else
 161                 nfmt
 162 #endif
 163                 ,ap);
 164         if (fatal=='!') vlogmsg(
 165 #ifdef PRINTF_WORKS_PM
 166                 fmt
 167 #else
 168                 pm,nfmt
 169 #endif
 170                 ,ap);
 171         va_end(ap);
 172
 173 #ifndef PRINTF_WORKS_PM
 174         if (pm) {
 175                 fputs(strerror(errno),stderr);
 176                 free(nfmt);
 177                 }
 178 #endif
 179
 180         if (fatal!='\n') fputc((fatal=='.'?'.':'!'),stderr);
 181         fputc('\n',stderr);
 182         if (fatal=='!') exit(EXIT_FAILURE);
 183 }
 184
 185 static void chk(void *p)
 186 {
 187         if (p) return;
 188         error("!Virtual memory exhausted");
 189 }
 190
 191 static void cleanup(void)
 192 {
 193         d1("cleanup()\n");
 194         if (dis_cleanup) return;
 195         if (restios_yes) {
 196                 if (tcsetattr(devfd,TCSANOW,&restios))
 197                         error("Error restoring termios for device: %m");
 198                 restios_yes=0;
 199                 }
 200         if (locked && *lockreal) {
 201                 d2("Removing lockfile \"%s\"\n",lockreal);
 202                 if (unlink(lockreal))
 203                         error("Error removing my device lockfile \"%s\": %m",lockreal);
 204                 locked=0;
 205                 }
 206         dis_cleanup=1;
 207         exit(EXIT_FAILURE);
 208 }
 209
 210 static void usage(void)
 211 {
 212         fprintf(stderr,"\
 213 \n\
 214 %s\
 215 \n\
 216 Usage: " PACKAGE " [-c|--config <cfgfile>] [-d|--device <device>]\n\
 217              [-L|--log <file>]\n\
 218              [-l|--lockfile <lock>] [-s|--smsc <smsc #>] [-m|--maxretry <#>]\n\
 219              [-r|--readtime <sec>] [-t|--chartime <msec>] [-T|--cmdtime <msec>]\n\
 220              [-f|--file] [-v|--verbose] [-h|--help] [-V|--version]\n\
 221              <dest. phone> <msg text|msg filename>\n\
 222 \n\
 223  -c, --config\tRead this additional config file\n\
 224 \t\t(def. \"" CONFIG_MAIN "\" and \"$HOME" CONFIG_HOME "\")\n\
 225  -d, --device\tMobilDock on this serial device (def. \"" DEF_DEVICE "\")\n\
 226  -L, --log\tLog all important messages to this file (def. \"" DEF_LOGNAME "\")\n\
 227  -l, --lockfile\tLock serial port by this file, \"%%s\" is basename of device\n\
 228 \t\t(def. \"%s\")\n\
 229  -s, --smsc\tUse this SMS Center number (def. query from Siemens A1)\n\
 230  -m, --maxretry\tMaximum retries of any command before giving up (def. %d)\n\
 231  -r, --readtime\tSeconds for maximum wait time for response (def. %ds)\n\
 232  -t, --chartime\tMilliseconds between each char on baud 19200 (def. %dms)\n\
 233  -T, --cmdtime\tMilliseconds before each whole AT command (def. %dms)\n\
 234  -f, --file\tRead contents of message from file instead\n\
 235  -v, --verbose\tIncrease verbosity level, more \"-v\"s give more messages\n\
 236  -h, --help\tPrint a summary of the options\n\
 237  -V, --version\tPrint the version number\n\
 238 \n",version,DEF_LOCKFILE,DEF_MAXRETRY,DEF_READTIME,DEF_CHARTIME,DEF_CMDTIME);
 239         exit(EXIT_FAILURE);
 240 }
 241
 242 static const struct option longopts[]={
 243 {"config"  ,1,0,'c'},
 244 {"device"  ,1,0,'d'},
 245 {"log"     ,1,0,'l'},
 246 {"lockfile",1,0,'l'},
 247 {"smsc"    ,1,0,'s'},
 248 {"maxretry",1,0,'m'},
 249 {"readtime",1,0,'r'},
 250 {"chartime",1,0,'t'},
 251 {"cmdtime" ,1,0,'T'},
 252 {"file"    ,0,0,'f'},
 253 {"verbose" ,0,0,'v'},
 254 {"help"    ,0,0,'h'},
 255 {"version" ,0,0,'V'}};
 256
 257 static void processargs(int argp,char **args,const char *from);
 258
 259 static char *cfgstack[MAXCFGLOOP];
 260 static unsigned cfgstacki=0;
 261
 262 static void chkfclose(FILE *f,const char *fname)
 263 {
 264         if (fclose(f))
 265                 error("Error closing \"%s\": %m",fname);
 266 }
 267
 268 static void readfile(const char *fname,char quiet)
 269 {
 270 FILE *f;
 271 size_t got;
 272 char *args[MAXCFGARGS],*d,*s,blank,quote;
 273 unsigned argp;
 274 char *buf;
 275 long size;
 276 static unsigned tot=0;
 277
 278         if (tot++>=MAXCFGNUM) {
 279                 if (tot==MAXCFGNUM+1) error("Too many config files to read, max is %d, break-out",MAXCFGNUM);
 280                 return;
 281                 }
 282         if (!(f=fopen(fname,"rt"))) {
 283                 if (!quiet) error("Can't open config file \"%s\" for r/o: %m",fname);
 284                 return;
 285                 }
 286         if (verbose>=2) error(".Reading config file \"%s\"",fname);
 287         if (fseek(f,0,SEEK_END))
 288                 error("Error seeking to end of \"s\": %m",fname);
 289         if ((size=ftell(f))<0)
 290                 size=0,error("Error measuring \"%s\": %m",fname);
 291         if (size>MAXCONFIG)
 292                 error("File \"%s\" is too long, read only %ld bytes",fname,MAXCONFIG);
 293         chk(buf=malloc((size?size:MAXCONFIG)+1));
 294         rewind(f);
 295         got=fread(buf,1,(size?size:MAXCONFIG),f);
 296         if (size && got!=size)
 297                 error("File \"%s\" read error, got only %u bytes of %ld",fname,got,size);
 298         chkfclose(f,fname);
 299         buf[got]='\0';
 300         args[0]=pname;
 301         for (argp=1,d=s=buf,blank=1,quote=0;s<buf+got;s++) {
 302 char c=*s;
 303
 304                 if (!quote && isspace(c)) {
 305                         if (!blank) {
 306                                 *d='\0';
 307                                 blank=1;
 308                                 if (verbose>=2) error("\nConfig \"%s\": arg#%d: %s",fname,argp-1,args[argp-1]);
 309                                 }
 310                         continue;
 311                         }
 312                 if (blank) {
 313                         if (argp>=NELEM(args)-1) {
 314                                 error("Too many arguments in \"%s\", from offset %d ignored",fname,s-buf);
 315                                 break;
 316                                 }
 317                         args[argp++]=s;
 318                         d=s;
 319                         blank=0;
 320                         }
 321                 if (c=='\\') { *d++=*++s; continue; }
 322                 if (c=='"' || c=='\'') {
 323                         if (!quote   ) { quote=c; continue; }
 324                         if ( quote==c) { quote=0; continue; }
 325                         /* FALLTHRU */
 326                         }
 327                 *d++=c;
 328                 }
 329         args[argp]=NULL;
 330         processargs(argp,args,fname);
 331         free(buf);
 332 }
 333
 334 static struct {
 335         const char c;
 336         char **const var;
 337         unsigned stamp;
 338         } optset[]={
 339                 { 'd',&device   },
 340                 { 'L',&logname  },
 341                 { 'l',&lockfile },
 342                 { 's',&smsc     },
 343                 { 'm',&maxretry },
 344                 { 'r',&readtime },
 345                 { 't',&chartime },
 346                 { 'T',&cmdtime  },
 347         };
 348
 349 static void processargs(int argp,char **args,const char *from)
 350 {
 351 int optc;
 352 static unsigned seq=0;
 353 int i;
 354
 355         seq++;
 356         optarg=NULL; optind=0; /* FIXME: Possible portability problem. */
 357         while ((optc=getopt_long(argp,args,"c:d:L:l:s:m:r:t:T:fvhV",longopts,NULL))!=EOF) switch (optc) {
 358                 case 'c':
 359                         if (cfgstacki>=NELEM(cfgstack)) {
 360                                 error("Looping (%d) during attempt to read config file \"%s\", break-out",NELEM(cfgstack),optind);
 361                                 break;
 362                                 }
 363                         chk(cfgstack[cfgstacki++]=strdup(optarg));
 364                         break;
 365                 case 'd': case 'L': case 'l': case 's': case 'm': case 'r': case 't': case 'T':
 366                         for (i=0;i<NELEM(optset);i++)
 367                                 if (optset[i].c==optc) {
 368                                         if (optset[i].stamp && optset[i].stamp!=seq) {
 369                                                 assert(!!*optset[i].var);
 370                                                 break;
 371                                                 }
 372                                         free(*optset[i].var);
 373                                         chk(*optset[i].var=strdup(optarg));
 374                                         optset[i].stamp=seq;
 375                                         break;
 376                                         }
 377                         assert(i<NELEM(optset));
 378                         break;
 379                 case 'f':
 380                         readbody++;
 381                         break;
 382                 case 'v':
 383                         verbose++;
 384                         break;
 385                 case 'V':
 386                         fprintf(stderr,version);
 387                         exit(EXIT_FAILURE);
 388                 default:
 389                         if (optc!='h')
 390                                 error("\nLast getopt(3) error occured during parsing option %d from \"%s\"! Follows help:",optind-1,from);
 391                         usage();
 392                         break;
 393                 }
 394         if (!phone && optind<argp)
 395                 chk(phone=strdup(args[optind++]));
 396         if (!body && optind<argp) {
 397 char *d;
 398 int i;
 399
 400                 for (i=optind,bodylen=argp-optind;i<argp;i++)
 401                         bodylen+=strlen(args[i]);
 402                 chk(body=malloc(bodylen));
 403                 for (d=body,i=optind;i<argp;i++) {
 404 size_t l=strlen(args[i]);
 405                         memcpy(d,args[i],l);
 406                         d+=l;
 407                         *d++=' ';
 408                         assert(d<=body+bodylen);
 409                         }
 410                 assert(d==body+bodylen);
 411                 d[-1]='\0';
 412                 bodylen--;
 413                 }
 414         while (cfgstacki) {
 415 char *s=cfgstack[--cfgstacki];
 416
 417                 assert(cfgstacki>=0);
 418                 readfile(s,0);
 419                 free(s);
 420                 assert(cfgstacki>=0 && cfgstacki<NELEM(cfgstack));
 421                 }
 422 }
 423
 424 static const struct {
 425         char **var;
 426         const char *name;
 427         } nullcheck[]={
 428                 {&phone,"destination phone number"},
 429 #if 0
 430                 {&body ,"body text"},
 431                 {&device,"device for communication"},
 432 #endif
 433         };
 434 static char **emptycheck[]={&logname,&smsc,&body};
 435
 436 static void lockclose(int fd)
 437 {
 438         if (close(fd))
 439                 error("Error closing lockfile \"%s\"",lockreal);
 440 }
 441
 442 static inline void lockdevice(void)
 443 {
 444 int fd=-1;
 445 char buf[64];
 446 ssize_t got;
 447 int delay=0;
 448 char empty=0;
 449 pid_t pid;
 450
 451         for (;;) {
 452                 if (fd!=-1) lockclose(fd);
 453 recheck:
 454                 if (delay) sleep(delay);
 455                 delay=DEVLOCK_PERIOD;
 456                 if (verbose>=3) error(".Checking the lockfile \"%s\"..",lockreal);
 457                 if ((fd=open(lockreal,O_RDONLY))==-1) break;
 458                 if ((got=read(fd,buf,sizeof(buf)-1))<=0) {
 459 isempty:
 460                         if (empty>=DEVLOCK_MAXEMPTY) {
 461                                 error(".Lockfile \"%s\" is still not valid, removing it",lockreal);
 462                                 goto remove;
 463                                 }
 464                         empty++;
 465                         continue;
 466                         }
 467                 assert(got<sizeof(buf));
 468                 buf[got]='\0';
 469                 if (sscanf(buf,"%d",&pid)!=1) goto isempty;
 470                 empty=0;
 471                 errno=0;
 472                 if (kill(pid,0) && errno!=ESRCH && errno!=EPERM)
 473                         error("Error during checking consciousness of PID %d: %m",pid);
 474                 if (errno!=ESRCH) continue;
 475                 error(".Lockfile \"%s\" is stale (PID %d), removing it",lockreal,pid);
 476 remove:
 477                 lockclose(fd);
 478                 if (unlink(lockreal))
 479                         error("Error removing foreign lockfile \"%s\": %m",lockreal);
 480                 break;
 481                 }
 482         errno=0;
 483         if ((fd=open(lockreal,O_WRONLY|O_CREAT|O_EXCL,0644))==-1) {
 484                 if (errno==EEXIST) goto recheck;
 485                 error("!Error creating lockfile \"%s\": %m",lockreal);
 486                 }
 487         locked=1;
 488         got=VARPRINTF(buf,"%010d\n",getpid()); assert(got==11);
 489         if (write(fd,buf,got)!=got)
 490                 error("!Error writing data to lockfile \"%s\": %m",lockreal);
 491         lockclose(fd);
 492 }
 493
 494 static char wasalarm=0;
 495 static void sigalarm(int signo)
 496 {
 497         signal(SIGALRM,(RETSIGTYPE (*)(int))sigalarm);
 498         wasalarm=1;
 499         if (verbose>=1) error("Timed out");
 500 }
 501
 502 static void blocking(char yes)
 503 {
 504 static char state=-1;
 505         if (state==yes) return;
 506         if (fcntl(devfd,F_SETFL,(yes?0:O_NONBLOCK)))
 507                 error("!fcntl() on device for %sblocking mode: %m",(yes?"":"non-"));
 508         state=yes;
 509 }
 510
 511 static const char *record;
 512 static char *catchdata;
 513 static size_t catchdatal,catchdatasiz;
 514
 515 static void catched(const char *end)
 516 {
 517 size_t len;
 518 void *p;
 519
 520         if (!record) return;
 521         assert(end>=record);
 522         if ((p=memchr(record,'\n',end-record))) end=p;
 523         if ((len=end-record)) {
 524                 if (catchdatal+len>catchdatasiz)
 525                         chk(catchdata=realloc(catchdata,
 526                                 (catchdatasiz=MAX(LINE_MAX,(catchdatal+len)*2))));
 527                 memcpy(catchdata+catchdatal,record,len);
 528                 catchdatal+=len;
 529                 }
 530         record=(p?NULL:end);
 531         assert(catchdatal<=catchdatasiz);
 532 }
 533
 534 static int retrycnt=0;
 535 static void retrying(void)
 536 {
 537         if (++retrycnt>maxretryn) error("!Maximum command retry count (%d) exceeded",maxretryn);
 538         if (verbose>=2) error(".Retrying phase, %d out of %d..",retrycnt,maxretryn);
 539 }
 540
 541 static char *devcmd(const char *term,const char *catch,const char *send,...)
 542 {
 543 size_t l,bufl,terml,catchl,fragl,offs;
 544 char buf[LINE_MAX];
 545 ssize_t got;
 546 char *hit,*s;
 547 va_list ap;
 548 char errout;
 549
 550         if (!term) term="\nOK\n";
 551         if ((errout=(*send=='!'))) send++;
 552         if (0) {
 553 err:
 554                 alarm(0);
 555                 if (errout) return(NULL);
 556                 retrying();
 557                 }
 558         catchdatal=0;
 559         va_start(ap,send);
 560         l=VARVPRINTF(buf,send,ap); bufl=l+1;
 561         va_end(ap);
 562         if (bufl>=sizeof(buf)-1) error("!Command too big (%d>%d)",bufl,sizeof(buf)-1);
 563         if (verbose>=2) error(".devcmd(send=\"%s\",term=\"%s\",catch=\"%s\")",buf,term,catch);
 564         buf[l]='\r'; buf[l+1]='\n';
 565         for (offs=0,got=0;offs<bufl;offs++) {
 566                 alarm(MAXSENDTIME);
 567                 usleep((offs?chartimen:cmdtimen)*1000);
 568                 if (!offs && tcflush(devfd,TCIOFLUSH))
 569                         error("Error flushing I/O queue of device: %m");
 570                 if (write(devfd,buf+offs,1)!=1) break;
 571                 got++;
 572                 if (tcdrain(devfd))
 573                         error("Error forcing output of char %d of cmd \"%s\": %m",offs,buf);
 574                 }
 575         alarm(0);
 576         if (got!=bufl) {
 577                 error("Wrote only %d of %d bytes of command: %m",got,bufl);
 578                 goto err;
 579                 }
 580
 581         if (!(terml=strlen(term))) {
 582                 assert(!catch);
 583                 return(NULL);
 584                 }
 585         if (catch) {
 586                 catchl=strlen(catch);
 587                 fragl=MAX(terml,catchl);
 588                 }
 589         else fragl=terml;
 590         fragl=MAX(fragl,MAX(strlen(ERROR_SUBSTR1),strlen(ERROR_SUBSTR2)));
 591         bufl=0;
 592         record=NULL;
 593         wasalarm=0;
 594         alarm(readtimen);
 595         for (;;) {
 596                 blocking(0);
 597                 errno=0;
 598                 got=read(devfd,buf+bufl,sizeof(buf)-1-bufl);
 599                 if (got==-1 && errno==EAGAIN) {
 600                         blocking(1);
 601                         errno=0;
 602                         got=read(devfd,buf+bufl,1);
 603                         }
 604                 if (got<=0) {
 605                         if (wasalarm) error("!Maximum response timeout (%ds) exceeded",readtimen);
 606                         error("Couldn't read device data (ret=%d): %m",got);
 607                         goto err;
 608                         }
 609                 s=buf+bufl;
 610                 bufl+=got;
 611                 /* FIXME: '\0' conversion */
 612                 while (buf+bufl>s && (s=memchr(s,'\r',buf+bufl-s))) *s='\n';
 613                 catched(buf+bufl); assert(!record || record==buf+bufl);
 614                 assert(bufl<sizeof(buf));
 615                 if (bufl>=fragl) {
 616                         buf[bufl]='\0';
 617                         assert(strlen(buf)==bufl);
 618                         /* d3(">%s|%s<\n",buf,term); */
 619                         if (strstr(buf,ERROR_SUBSTR1) || strstr(buf,ERROR_SUBSTR2)) {
 620                                 error("Found ERROR response on command \"%s\"",send);
 621                                 goto err;
 622                                 }
 623                         if (catch && bufl>=catchl && (hit=strstr(buf,catch))) {
 624                                 record=hit+catchl;
 625                                 catched(buf+bufl); assert(!record || record==buf+bufl);
 626                                 }
 627                         if (         bufl>= terml && (hit=strstr(buf,term))) break;
 628                         memmove(buf,buf+bufl-(fragl-1),fragl-1);
 629                         bufl=fragl-1;
 630                         if (record) record=buf+bufl;
 631                         }
 632                 }
 633         alarm(0);
 634         if (!catchdatal) {
 635                 if (!catch) return(NULL);
 636                 error("Data requested on command \"%s\" but no found after term \"%s\"",send,term);
 637                 goto err;
 638                 }
 639         assert(!!catch);
 640         record=buf;
 641         buf[0]='\0';
 642         catched(buf+1);
 643         if (verbose>=2) error(".Returning data \"%s\" for cmd \"%s\"",catchdata,send);
 644         return(catchdata);
 645 }
 646
 647 static int prepaddr(unsigned char *d,const char *addr)
 648 {
 649 int tot=0;
 650 char flip=0,plus;
 651 unsigned char n;
 652
 653         if ((plus=(*addr=='+'))) addr++;
 654         *++d=(plus?ADDR_INT:ADDR_NAT);
 655         while (*addr) {
 656                 if (*addr<'0' || *addr>'9')
 657                         error("!Error during conversion of number at: %s",addr);
 658                 tot++;
 659                 n=(*addr++)-'0';
 660                 if ((flip=!flip)) *++d=0xF0|n;
 661                 else *d=(*d&0x0F)|(n<<4U);
 662                 }
 663         return(tot);
 664 }
 665
 666 static char *finalsmsc;
 667 #define SMSCBINSIZE (1+1+(MAXNUMLEN+1)/2)
 668 static char pdusmsc[SMSCBINSIZE*2+1];
 669
 670 static inline char tohex(unsigned char x)
 671 {
 672         x&=0x0F;
 673         if (x<10) return(x   +'0');
 674                   return(x-10+'A');
 675 }
 676
 677 static void textconv(char *d,unsigned char *s,size_t len)
 678 {
 679         while (len--) {
 680                 *d++=tohex(*s>>4U);
 681                 *d++=tohex(*s    );
 682                 s++;
 683                 }
 684         *d='\0';
 685 }
 686
 687 static inline void smscset(void)
 688 {
 689 char *s,*t,*e,*serr;
 690 long l;
 691 unsigned char bin[2+(MAXNUMLEN+1)/2];
 692
 693         if (smsc) devcmd(NULL,NULL,"\r\nAT+CSCA=\"%s\"",smsc);
 694         s=devcmd(NULL,"\n+CSCA:","\r\nAT+CSCA?");
 695         while (isspace(*s)) s++;
 696         if (!*s || !strcmp(s,"EMPTY"))
 697                 error("!No SMS set in A1 found");
 698         if (verbose>=1) error("\nFound default SMSC in A1: %s",s);
 699         if (*s!='"') error("!No left-quote found in: %s",s);
 700         if (!(t=strrchr(s+1,'"'))) error("!No right-quote found in: %s",s);
 701         e=t++;
 702         while (isspace(*t)) t++;
 703         if (*t++!=',') error("!No comma found after quotes in: %s",s);
 704         while (isspace(*t)) t++;
 705         l=strtol(t,&serr,10);
 706         if ((l!=ADDR_NAT && l!=ADDR_INT) || (serr && *serr))
 707                 error("!Type parse error in: %s",s);
 708         if (l==ADDR_NAT || s[1]=='+') s++;
 709         else *s='+';
 710         *e='\0';
 711         chk(finalsmsc=strdup(s));
 712         if (verbose>=2) error("\nDecoded SMSC address: %s",finalsmsc);
 713         bin[0]=1+(prepaddr(bin,finalsmsc)+1)/2;
 714         textconv(pdusmsc,bin,bin[0]+1);
 715 }
 716
 717 static char *pdudata;
 718
 719 static inline unsigned char charconv(char c,size_t offs)
 720 {
 721         if ((c>='A' && c<='Z') || (c>='a' && c<='z') || (c>='0' && c<='9')) return(c);
 722         switch (c) {
 723                 case '@': return(0);
 724                 case '$': return(2);
 725                 case '"': return(96);
 726                 case ' ':
 727                         return(c);
 728                 case 0: assert(0);
 729                 }
 730         error("Can't convert character '%c' (0x%02X) at offs %d (0-based), substituted '?'",
 731                 c,(unsigned char)c,offs);
 732         return('?');
 733 }
 734
 735 static inline void genpdu(void)
 736 {
 737 static unsigned char pdu[64+MAXNUMLEN/2+(MAXBODYLEN*7)/8];
 738 unsigned char *d=pdu;
 739 int i;
 740 char inb=0,outb=0,xb;
 741 unsigned char inreg;
 742 size_t offs=0;
 743
 744         *d++=PDU_TYPE;
 745         *d++=PDU_MR;
 746         i=prepaddr(d,phone);
 747         *d=i; d+=1+1+(i+1)/2;
 748         *d++=PDU_PID;
 749         *d++=PDU_DCS;
 750         *d++=PDU_VP;
 751         if (bodylen>MAXBODYLEN) {
 752                 error("Body too large (%d>%d), cut",bodylen,MAXBODYLEN);
 753                 bodylen=MAXBODYLEN;
 754                 }
 755         *d=bodylen;
 756         assert(d<pdu+sizeof(pdu));
 757         while (bodylen || inb) {
 758                 if (!inb) {
 759                         assert(bodylen>0); assert(!!*body);
 760                         inreg=charconv(*body++,offs++);
 761                         bodylen--;
 762                         inb=7;
 763                         }
 764                 if (!outb) {
 765                         *++d=0x00;
 766                         outb=8;
 767                         }
 768                 xb=MIN(inb,outb);
 769                 d4("inb=%d,outb=%d,xb=%d\n",inb,outb,xb);
 770                 *d|=((inreg>>(unsigned)(7-inb))&((1<<xb)-1))<<(unsigned)(8-outb);
 771                 inb-=xb; outb-=xb;
 772                 }
 773         d++;
 774         assert(d<pdu+sizeof(pdu));
 775         pdudata=malloc(2*(d-pdu)+1);
 776         textconv(pdudata,pdu,d-pdu);
 777 }
 778
 779 static struct {
 780         char **sp;
 781         long *ip;
 782         const char *const msg;
 783         } numarg[]={
 784                 { &maxretry,&maxretryn,"maxretry" },
 785                 { &readtime,&readtimen,"readtime" },
 786                 { &chartime,&chartimen,"chartime" },
 787                 { &cmdtime ,&cmdtimen ,"cmdtime"  },
 788         };
 789
 790 int main(int argc,char **argv)
 791 {
 792 char *s,*finame;
 793 FILE *fin;
 794 int i;
 795 unsigned fatal=0;
 796
 797         if ((s=strrchr((pname=*argv),'/'))) pname=s+1;
 798         atexit(cleanup);
 799         signal(SIGTERM,(RETSIGTYPE (*)(int))cleanup);
 800         signal(SIGQUIT,(RETSIGTYPE (*)(int))cleanup);
 801         signal(SIGINT ,(RETSIGTYPE (*)(int))cleanup);
 802         signal(SIGHUP ,(RETSIGTYPE (*)(int))cleanup);
 803         processargs(argc,argv,"<command-line>");
 804         if ((s=getenv("HOME"))) {
 805 size_t l=strlen(s);
 806 char *buf=malloc(l+50);
 807
 808                 memcpy(buf,s,l);
 809                 strcpy(buf+l,CONFIG_HOME);
 810                 readfile(buf,1);
 811                 free(buf);
 812                 }
 813         readfile(CONFIG_MAIN,1);
 814
 815         for (i=0;i<NELEM(nullcheck);i++)
 816                 if (!*nullcheck[i].var) {
 817                         error("Missing parameter \"%s\"",nullcheck[i].name);
 818                         fatal++;
 819                         }
 820         if (fatal) error("!Previous error%s considered unrecoverable",(fatal==1?"":"s"));
 821         for (i=0;i<NELEM(emptycheck);i++)
 822                 if (*emptycheck[i] && !**emptycheck[i]) {
 823                         free(*emptycheck[i]);
 824                              *emptycheck[i]=NULL;
 825                         }
 826         if (!logname) logname=DEF_LOGNAME;
 827         if (!lockfile) lockfile=DEF_LOCKFILE;
 828         if (!device) device=DEF_DEVICE;
 829         if (body && readbody) {
 830                 finame=body;
 831                 body=NULL;
 832                 }
 833         else fin=stdin;
 834         if (!body) {
 835                 readbody=0;
 836                 if (verbose>=1)
 837                         error("\nPlease enter the SMS text body, end with EOF (ctrl-D):");
 838                 chk(body=malloc(BODYLOAD));
 839                 bodylen=fread(body,1,BODYLOAD,fin);
 840                 if (bodylen==-1)
 841                         error("!Error reading stream \"%s\": %m",(finame?finame:"<stdin>"));
 842                 }
 843         if (fin!=stdin) {
 844                 chkfclose(fin,finame);
 845                 free(finame);
 846                 }
 847
 848         for (i=0;i<NELEM(numarg);i++) {
 849 char *serr;
 850                 if (!*numarg[i].sp) continue;
 851                 *numarg[i].ip=strtol(*numarg[i].sp,&serr,0);
 852                 if (*numarg[i].ip<0 || *numarg[i].ip>=LONG_MAX || !serr || *serr)
 853                         error("!Number parse error for parameter \"%s\" of \"%s\" at: %s",
 854                                 numarg[i].msg,*numarg[i].sp,serr);
 855                 }
 856
 857         if (!strchr(device,'/')) {
 858 size_t l=strlen(device);
 859                 chk(s=malloc(5+l+1));
 860                 strcpy(s,"/dev/");
 861                 strcpy(s+5,device);
 862                 free(device);
 863                 device=s;
 864                 }
 865         devicename=strrchr(device,'/')+1; assert(!!(devicename-1));
 866         for (i=0,s=lockfile;*s;s++) {
 867                 if (*s!='%') continue;
 868                 s++;
 869                 if (*s=='%') continue;
 870                 if (*s=='s') {
 871                         if (i) error("!Only one \"%%s\" permitted in lockfile format-string");
 872                         i=1; continue;
 873                         }
 874                 error("!Invalid format-character '%c' in lockfile format-string, only \"%%s\" allowed",*s);
 875                 }
 876
 877         if (*logname) {
 878                 if (!(logf=fopen(logname,"a")))
 879                         error("!Error opening log \"%s\" for append: %m",logname);
 880                 logmsg("Starting up: " PACKAGE " " VERSION);
 881                 }
 882         genpdu();
 883
 884         if (lockfile && *lockfile && VARPRINTF(lockreal,lockfile,devicename)>0) {
 885 time_t start,end;
 886                 if (verbose>=1) error(".Locking device \"%s\" by \"%s\"..",device,lockreal);
 887                 time(&start);
 888                 lockdevice();
 889                 time(&end);
 890                 if ((end-=start)>LOCKREPORT)
 891                         logmsg("Device lock succeeded after %d seconds",end);
 892                 }
 893         if (verbose>=1) error(".Opening device \"%s\"..",device);
 894         if ((devfd=open(device,O_RDWR|O_NDELAY))<0)
 895                 error("!Cannot open device \"%s\" for rw-access: %m",device);
 896
 897         if (tcgetattr(devfd,&restios))
 898                 error("Unable to get termios settings: %m");
 899         else {
 900                 restios.c_cflag=(restios.c_cflag&~(CBAUD|CBAUDEX))|B0|HUPCL;
 901                 restios_yes=1;
 902                 }
 903         tios.c_iflag=IGNBRK|IGNPAR|IXON|IXOFF;
 904         tios.c_oflag=0;
 905         tios.c_cflag=CS8|CREAD|CLOCAL|B19200|HUPCL;
 906         tios.c_lflag=IEXTEN|NOFLSH;
 907         memset(tios.c_cc,_POSIX_VDISABLE,sizeof(tios.c_cc));
 908         tios.c_cc[VTIME]=0;
 909         tios.c_cc[VMIN ]=1;
 910             cfsetispeed(&tios,B19200);
 911         if (cfsetospeed(&tios,B19200)|cfsetispeed(&tios,B19200))
 912                 error("Error setting termios baudrate on device: %m");
 913         if (tcflush(devfd,TCIOFLUSH))
 914                 error("Error flushing termios (TCIOFLUSH) on device: %m");
 915         if (tcsetattr(devfd,TCSANOW,&tios))
 916                 error("!Unable to set initial termios device settings: %m");
 917
 918         signal(SIGALRM,(RETSIGTYPE (*)(int))sigalarm);
 919         do {
 920                 devcmd("",NULL,"\r\nAT\032");
 921                 devcmd(NULL,NULL,"\r\nAT");
 922                 smscset();
 923                 devcmd(NULL,NULL,"\r\nAT+CMGF=0");
 924                 devcmd("\n> ",NULL,"\r\nAT+CMGS=%d",(strlen(pdusmsc)+strlen(pdudata))/2);
 925                 if (!(s=devcmd(NULL,"\n+CMGS:","!%s%s\032",pdusmsc,pdudata))) retrying();
 926                 } while (!s);
 927         while (isspace(*s)) s++;
 928         if (verbose>=1) error("\nMessage successfuly sent with MR: %s",s);
 929         devcmd(NULL,NULL,"\r\nAT");
 930
 931         logmsg("SMS sent (after %d retries), message reference: %s",retrycnt,s);
 932         return(EXIT_SUCCESS);
 933 }