gstrfuncs.c

   1 /* GLIB - Library of useful routines for C programming
   2  * Copyright (C) 1995-1997  Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 /*
  21  * Modified by the GLib Team and others 1997-1999.  See the AUTHORS
  22  * file for a list of people on the GLib Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GLib at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 /*
  28  * MT safe
  29  */
  30
  31 #ifdef HAVE_CONFIG_H
  32 #include <config.h>
  33 #endif
  34
  35 #include <stdarg.h>
  36 #include <stdio.h>
  37 #include <stdlib.h>
  38 #include <string.h>
  39 #include <locale.h>
  40 #include <ctype.h>              /* For tolower() */
  41 #if !defined (HAVE_STRSIGNAL) || !defined(NO_SYS_SIGLIST_DECL)
  42 #include <signal.h>
  43 #endif
  44 #include "glib.h"
  45 /* do not include <unistd.h> in this place since it
  46  * inteferes with g_strsignal() on some OSes
  47  */
  48
  49 gchar*
  50 g_strdup (const gchar *str)
  51 {
  52   gchar *new_str;
  53
  54   if (str)
  55     {
  56       new_str = g_new (char, strlen (str) + 1);
  57       strcpy (new_str, str);
  58     }
  59   else
  60     new_str = NULL;
  61
  62   return new_str;
  63 }
  64
  65 gpointer
  66 g_memdup (gconstpointer mem,
  67           guint         byte_size)
  68 {
  69   gpointer new_mem;
  70
  71   if (mem)
  72     {
  73       new_mem = g_malloc (byte_size);
  74       memcpy (new_mem, mem, byte_size);
  75     }
  76   else
  77     new_mem = NULL;
  78
  79   return new_mem;
  80 }
  81
  82 gchar*
  83 g_strndup (const gchar *str,
  84            guint        n)
  85 {
  86   gchar *new_str;
  87
  88   if (str)
  89     {
  90       new_str = g_new (gchar, n + 1);
  91       strncpy (new_str, str, n);
  92       new_str[n] = '\0';
  93     }
  94   else
  95     new_str = NULL;
  96
  97   return new_str;
  98 }
  99
 100 gchar*
 101 g_strnfill (guint length,
 102             gchar fill_char)
 103 {
 104   register gchar *str, *s, *end;
 105
 106   str = g_new (gchar, length + 1);
 107   s = str;
 108   end = str + length;
 109   while (s < end)
 110     *(s++) = fill_char;
 111   *s = 0;
 112
 113   return str;
 114 }
 115
 116 gchar*
 117 g_strdup_vprintf (const gchar *format,
 118                   va_list      args1)
 119 {
 120   gchar *buffer;
 121   va_list args2;
 122
 123   G_VA_COPY (args2, args1);
 124
 125   buffer = g_new (gchar, g_printf_string_upper_bound (format, args1));
 126
 127   vsprintf (buffer, format, args2);
 128   va_end (args2);
 129
 130   return buffer;
 131 }
 132
 133 gchar*
 134 g_strdup_printf (const gchar *format,
 135                  ...)
 136 {
 137   gchar *buffer;
 138   va_list args;
 139
 140   va_start (args, format);
 141   buffer = g_strdup_vprintf (format, args);
 142   va_end (args);
 143
 144   return buffer;
 145 }
 146
 147 gchar*
 148 g_strconcat (const gchar *string1, ...)
 149 {
 150   guint   l;
 151   va_list args;
 152   gchar   *s;
 153   gchar   *concat;
 154
 155   g_return_val_if_fail (string1 != NULL, NULL);
 156
 157   l = 1 + strlen (string1);
 158   va_start (args, string1);
 159   s = va_arg (args, gchar*);
 160   while (s)
 161     {
 162       l += strlen (s);
 163       s = va_arg (args, gchar*);
 164     }
 165   va_end (args);
 166
 167   concat = g_new (gchar, l);
 168   concat[0] = 0;
 169
 170   strcat (concat, string1);
 171   va_start (args, string1);
 172   s = va_arg (args, gchar*);
 173   while (s)
 174     {
 175       strcat (concat, s);
 176       s = va_arg (args, gchar*);
 177     }
 178   va_end (args);
 179
 180   return concat;
 181 }
 182
 183 gdouble
 184 g_strtod (const gchar *nptr,
 185           gchar **endptr)
 186 {
 187   gchar *fail_pos_1;
 188   gchar *fail_pos_2;
 189   gdouble val_1;
 190   gdouble val_2 = 0;
 191
 192   g_return_val_if_fail (nptr != NULL, 0);
 193
 194   fail_pos_1 = NULL;
 195   fail_pos_2 = NULL;
 196
 197   val_1 = strtod (nptr, &fail_pos_1);
 198
 199   if (fail_pos_1 && fail_pos_1[0] != 0)
 200     {
 201       gchar *old_locale;
 202
 203       old_locale = setlocale (LC_NUMERIC, "C");
 204       val_2 = strtod (nptr, &fail_pos_2);
 205       setlocale (LC_NUMERIC, old_locale);
 206     }
 207
 208   if (!fail_pos_1 || fail_pos_1[0] == 0 || fail_pos_1 >= fail_pos_2)
 209     {
 210       if (endptr)
 211         *endptr = fail_pos_1;
 212       return val_1;
 213     }
 214   else
 215     {
 216       if (endptr)
 217         *endptr = fail_pos_2;
 218       return val_2;
 219     }
 220 }
 221
 222 gchar*
 223 g_strerror (gint errnum)
 224 {
 225   static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
 226   char *msg;
 227
 228 #ifdef HAVE_STRERROR
 229   return strerror (errnum);
 230 #elif NO_SYS_ERRLIST
 231   switch (errnum)
 232     {
 233 #ifdef E2BIG
 234     case E2BIG: return "argument list too long";
 235 #endif
 236 #ifdef EACCES
 237     case EACCES: return "permission denied";
 238 #endif
 239 #ifdef EADDRINUSE
 240     case EADDRINUSE: return "address already in use";
 241 #endif
 242 #ifdef EADDRNOTAVAIL
 243     case EADDRNOTAVAIL: return "can't assign requested address";
 244 #endif
 245 #ifdef EADV
 246     case EADV: return "advertise error";
 247 #endif
 248 #ifdef EAFNOSUPPORT
 249     case EAFNOSUPPORT: return "address family not supported by protocol family";
 250 #endif
 251 #ifdef EAGAIN
 252     case EAGAIN: return "try again";
 253 #endif
 254 #ifdef EALIGN
 255     case EALIGN: return "EALIGN";
 256 #endif
 257 #ifdef EALREADY
 258     case EALREADY: return "operation already in progress";
 259 #endif
 260 #ifdef EBADE
 261     case EBADE: return "bad exchange descriptor";
 262 #endif
 263 #ifdef EBADF
 264     case EBADF: return "bad file number";
 265 #endif
 266 #ifdef EBADFD
 267     case EBADFD: return "file descriptor in bad state";
 268 #endif
 269 #ifdef EBADMSG
 270     case EBADMSG: return "not a data message";
 271 #endif
 272 #ifdef EBADR
 273     case EBADR: return "bad request descriptor";
 274 #endif
 275 #ifdef EBADRPC
 276     case EBADRPC: return "RPC structure is bad";
 277 #endif
 278 #ifdef EBADRQC
 279     case EBADRQC: return "bad request code";
 280 #endif
 281 #ifdef EBADSLT
 282     case EBADSLT: return "invalid slot";
 283 #endif
 284 #ifdef EBFONT
 285     case EBFONT: return "bad font file format";
 286 #endif
 287 #ifdef EBUSY
 288     case EBUSY: return "mount device busy";
 289 #endif
 290 #ifdef ECHILD
 291     case ECHILD: return "no children";
 292 #endif
 293 #ifdef ECHRNG
 294     case ECHRNG: return "channel number out of range";
 295 #endif
 296 #ifdef ECOMM
 297     case ECOMM: return "communication error on send";
 298 #endif
 299 #ifdef ECONNABORTED
 300     case ECONNABORTED: return "software caused connection abort";
 301 #endif
 302 #ifdef ECONNREFUSED
 303     case ECONNREFUSED: return "connection refused";
 304 #endif
 305 #ifdef ECONNRESET
 306     case ECONNRESET: return "connection reset by peer";
 307 #endif
 308 #if defined(EDEADLK) && (!defined(EWOULDBLOCK) || (EDEADLK != EWOULDBLOCK))
 309     case EDEADLK: return "resource deadlock avoided";
 310 #endif
 311 #ifdef EDEADLOCK
 312     case EDEADLOCK: return "resource deadlock avoided";
 313 #endif
 314 #ifdef EDESTADDRREQ
 315     case EDESTADDRREQ: return "destination address required";
 316 #endif
 317 #ifdef EDIRTY
 318     case EDIRTY: return "mounting a dirty fs w/o force";
 319 #endif
 320 #ifdef EDOM
 321     case EDOM: return "math argument out of range";
 322 #endif
 323 #ifdef EDOTDOT
 324     case EDOTDOT: return "cross mount point";
 325 #endif
 326 #ifdef EDQUOT
 327     case EDQUOT: return "disk quota exceeded";
 328 #endif
 329 #ifdef EDUPPKG
 330     case EDUPPKG: return "duplicate package name";
 331 #endif
 332 #ifdef EEXIST
 333     case EEXIST: return "file already exists";
 334 #endif
 335 #ifdef EFAULT
 336     case EFAULT: return "bad address in system call argument";
 337 #endif
 338 #ifdef EFBIG
 339     case EFBIG: return "file too large";
 340 #endif
 341 #ifdef EHOSTDOWN
 342     case EHOSTDOWN: return "host is down";
 343 #endif
 344 #ifdef EHOSTUNREACH
 345     case EHOSTUNREACH: return "host is unreachable";
 346 #endif
 347 #ifdef EIDRM
 348     case EIDRM: return "identifier removed";
 349 #endif
 350 #ifdef EINIT
 351     case EINIT: return "initialization error";
 352 #endif
 353 #ifdef EINPROGRESS
 354     case EINPROGRESS: return "operation now in progress";
 355 #endif
 356 #ifdef EINTR
 357     case EINTR: return "interrupted system call";
 358 #endif
 359 #ifdef EINVAL
 360     case EINVAL: return "invalid argument";
 361 #endif
 362 #ifdef EIO
 363     case EIO: return "I/O error";
 364 #endif
 365 #ifdef EISCONN
 366     case EISCONN: return "socket is already connected";
 367 #endif
 368 #ifdef EISDIR
 369     case EISDIR: return "illegal operation on a directory";
 370 #endif
 371 #ifdef EISNAME
 372     case EISNAM: return "is a name file";
 373 #endif
 374 #ifdef ELBIN
 375     case ELBIN: return "ELBIN";
 376 #endif
 377 #ifdef EL2HLT
 378     case EL2HLT: return "level 2 halted";
 379 #endif
 380 #ifdef EL2NSYNC
 381     case EL2NSYNC: return "level 2 not synchronized";
 382 #endif
 383 #ifdef EL3HLT
 384     case EL3HLT: return "level 3 halted";
 385 #endif
 386 #ifdef EL3RST
 387     case EL3RST: return "level 3 reset";
 388 #endif
 389 #ifdef ELIBACC
 390     case ELIBACC: return "can not access a needed shared library";
 391 #endif
 392 #ifdef ELIBBAD
 393     case ELIBBAD: return "accessing a corrupted shared library";
 394 #endif
 395 #ifdef ELIBEXEC
 396     case ELIBEXEC: return "can not exec a shared library directly";
 397 #endif
 398 #ifdef ELIBMAX
 399     case ELIBMAX: return "attempting to link in more shared libraries than system limit";
 400 #endif
 401 #ifdef ELIBSCN
 402     case ELIBSCN: return ".lib section in a.out corrupted";
 403 #endif
 404 #ifdef ELNRNG
 405     case ELNRNG: return "link number out of range";
 406 #endif
 407 #ifdef ELOOP
 408     case ELOOP: return "too many levels of symbolic links";
 409 #endif
 410 #ifdef EMFILE
 411     case EMFILE: return "too many open files";
 412 #endif
 413 #ifdef EMLINK
 414     case EMLINK: return "too many links";
 415 #endif
 416 #ifdef EMSGSIZE
 417     case EMSGSIZE: return "message too long";
 418 #endif
 419 #ifdef EMULTIHOP
 420     case EMULTIHOP: return "multihop attempted";
 421 #endif
 422 #ifdef ENAMETOOLONG
 423     case ENAMETOOLONG: return "file name too long";
 424 #endif
 425 #ifdef ENAVAIL
 426     case ENAVAIL: return "not available";
 427 #endif
 428 #ifdef ENET
 429     case ENET: return "ENET";
 430 #endif
 431 #ifdef ENETDOWN
 432     case ENETDOWN: return "network is down";
 433 #endif
 434 #ifdef ENETRESET
 435     case ENETRESET: return "network dropped connection on reset";
 436 #endif
 437 #ifdef ENETUNREACH
 438     case ENETUNREACH: return "network is unreachable";
 439 #endif
 440 #ifdef ENFILE
 441     case ENFILE: return "file table overflow";
 442 #endif
 443 #ifdef ENOANO
 444     case ENOANO: return "anode table overflow";
 445 #endif
 446 #if defined(ENOBUFS) && (!defined(ENOSR) || (ENOBUFS != ENOSR))
 447     case ENOBUFS: return "no buffer space available";
 448 #endif
 449 #ifdef ENOCSI
 450     case ENOCSI: return "no CSI structure available";
 451 #endif
 452 #ifdef ENODATA
 453     case ENODATA: return "no data available";
 454 #endif
 455 #ifdef ENODEV
 456     case ENODEV: return "no such device";
 457 #endif
 458 #ifdef ENOENT
 459     case ENOENT: return "no such file or directory";
 460 #endif
 461 #ifdef ENOEXEC
 462     case ENOEXEC: return "exec format error";
 463 #endif
 464 #ifdef ENOLCK
 465     case ENOLCK: return "no locks available";
 466 #endif
 467 #ifdef ENOLINK
 468     case ENOLINK: return "link has be severed";
 469 #endif
 470 #ifdef ENOMEM
 471     case ENOMEM: return "not enough memory";
 472 #endif
 473 #ifdef ENOMSG
 474     case ENOMSG: return "no message of desired type";
 475 #endif
 476 #ifdef ENONET
 477     case ENONET: return "machine is not on the network";
 478 #endif
 479 #ifdef ENOPKG
 480     case ENOPKG: return "package not installed";
 481 #endif
 482 #ifdef ENOPROTOOPT
 483     case ENOPROTOOPT: return "bad proocol option";
 484 #endif
 485 #ifdef ENOSPC
 486     case ENOSPC: return "no space left on device";
 487 #endif
 488 #ifdef ENOSR
 489     case ENOSR: return "out of stream resources";
 490 #endif
 491 #ifdef ENOSTR
 492     case ENOSTR: return "not a stream device";
 493 #endif
 494 #ifdef ENOSYM
 495     case ENOSYM: return "unresolved symbol name";
 496 #endif
 497 #ifdef ENOSYS
 498     case ENOSYS: return "function not implemented";
 499 #endif
 500 #ifdef ENOTBLK
 501     case ENOTBLK: return "block device required";
 502 #endif
 503 #ifdef ENOTCONN
 504     case ENOTCONN: return "socket is not connected";
 505 #endif
 506 #ifdef ENOTDIR
 507     case ENOTDIR: return "not a directory";
 508 #endif
 509 #ifdef ENOTEMPTY
 510     case ENOTEMPTY: return "directory not empty";
 511 #endif
 512 #ifdef ENOTNAM
 513     case ENOTNAM: return "not a name file";
 514 #endif
 515 #ifdef ENOTSOCK
 516     case ENOTSOCK: return "socket operation on non-socket";
 517 #endif
 518 #ifdef ENOTTY
 519     case ENOTTY: return "inappropriate device for ioctl";
 520 #endif
 521 #ifdef ENOTUNIQ
 522     case ENOTUNIQ: return "name not unique on network";
 523 #endif
 524 #ifdef ENXIO
 525     case ENXIO: return "no such device or address";
 526 #endif
 527 #ifdef EOPNOTSUPP
 528     case EOPNOTSUPP: return "operation not supported on socket";
 529 #endif
 530 #ifdef EPERM
 531     case EPERM: return "not owner";
 532 #endif
 533 #ifdef EPFNOSUPPORT
 534     case EPFNOSUPPORT: return "protocol family not supported";
 535 #endif
 536 #ifdef EPIPE
 537     case EPIPE: return "broken pipe";
 538 #endif
 539 #ifdef EPROCLIM
 540     case EPROCLIM: return "too many processes";
 541 #endif
 542 #ifdef EPROCUNAVAIL
 543     case EPROCUNAVAIL: return "bad procedure for program";
 544 #endif
 545 #ifdef EPROGMISMATCH
 546     case EPROGMISMATCH: return "program version wrong";
 547 #endif
 548 #ifdef EPROGUNAVAIL
 549     case EPROGUNAVAIL: return "RPC program not available";
 550 #endif
 551 #ifdef EPROTO
 552     case EPROTO: return "protocol error";
 553 #endif
 554 #ifdef EPROTONOSUPPORT
 555     case EPROTONOSUPPORT: return "protocol not suppored";
 556 #endif
 557 #ifdef EPROTOTYPE
 558     case EPROTOTYPE: return "protocol wrong type for socket";
 559 #endif
 560 #ifdef ERANGE
 561     case ERANGE: return "math result unrepresentable";
 562 #endif
 563 #if defined(EREFUSED) && (!defined(ECONNREFUSED) || (EREFUSED != ECONNREFUSED))
 564     case EREFUSED: return "EREFUSED";
 565 #endif
 566 #ifdef EREMCHG
 567     case EREMCHG: return "remote address changed";
 568 #endif
 569 #ifdef EREMDEV
 570     case EREMDEV: return "remote device";
 571 #endif
 572 #ifdef EREMOTE
 573     case EREMOTE: return "pathname hit remote file system";
 574 #endif
 575 #ifdef EREMOTEIO
 576     case EREMOTEIO: return "remote i/o error";
 577 #endif
 578 #ifdef EREMOTERELEASE
 579     case EREMOTERELEASE: return "EREMOTERELEASE";
 580 #endif
 581 #ifdef EROFS
 582     case EROFS: return "read-only file system";
 583 #endif
 584 #ifdef ERPCMISMATCH
 585     case ERPCMISMATCH: return "RPC version is wrong";
 586 #endif
 587 #ifdef ERREMOTE
 588     case ERREMOTE: return "object is remote";
 589 #endif
 590 #ifdef ESHUTDOWN
 591     case ESHUTDOWN: return "can't send afer socket shutdown";
 592 #endif
 593 #ifdef ESOCKTNOSUPPORT
 594     case ESOCKTNOSUPPORT: return "socket type not supported";
 595 #endif
 596 #ifdef ESPIPE
 597     case ESPIPE: return "invalid seek";
 598 #endif
 599 #ifdef ESRCH
 600     case ESRCH: return "no such process";
 601 #endif
 602 #ifdef ESRMNT
 603     case ESRMNT: return "srmount error";
 604 #endif
 605 #ifdef ESTALE
 606     case ESTALE: return "stale remote file handle";
 607 #endif
 608 #ifdef ESUCCESS
 609     case ESUCCESS: return "Error 0";
 610 #endif
 611 #ifdef ETIME
 612     case ETIME: return "timer expired";
 613 #endif
 614 #ifdef ETIMEDOUT
 615     case ETIMEDOUT: return "connection timed out";
 616 #endif
 617 #ifdef ETOOMANYREFS
 618     case ETOOMANYREFS: return "too many references: can't splice";
 619 #endif
 620 #ifdef ETXTBSY
 621     case ETXTBSY: return "text file or pseudo-device busy";
 622 #endif
 623 #ifdef EUCLEAN
 624     case EUCLEAN: return "structure needs cleaning";
 625 #endif
 626 #ifdef EUNATCH
 627     case EUNATCH: return "protocol driver not attached";
 628 #endif
 629 #ifdef EUSERS
 630     case EUSERS: return "too many users";
 631 #endif
 632 #ifdef EVERSION
 633     case EVERSION: return "version mismatch";
 634 #endif
 635 #if defined(EWOULDBLOCK) && (!defined(EAGAIN) || (EWOULDBLOCK != EAGAIN))
 636     case EWOULDBLOCK: return "operation would block";
 637 #endif
 638 #ifdef EXDEV
 639     case EXDEV: return "cross-domain link";
 640 #endif
 641 #ifdef EXFULL
 642     case EXFULL: return "message tables full";
 643 #endif
 644     }
 645 #else /* NO_SYS_ERRLIST */
 646   extern int sys_nerr;
 647   extern char *sys_errlist[];
 648
 649   if ((errnum > 0) && (errnum <= sys_nerr))
 650     return sys_errlist [errnum];
 651 #endif /* NO_SYS_ERRLIST */
 652
 653   msg = g_static_private_get (&msg_private);
 654   if (!msg)
 655     {
 656       msg = g_new (gchar, 64);
 657       g_static_private_set (&msg_private, msg, g_free);
 658     }
 659
 660   sprintf (msg, "unknown error (%d)", errnum);
 661
 662   return msg;
 663 }
 664
 665 gchar*
 666 g_strsignal (gint signum)
 667 {
 668   static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
 669   char *msg;
 670
 671 #ifdef HAVE_STRSIGNAL
 672   extern char *strsignal (int sig);
 673   return strsignal (signum);
 674 #elif NO_SYS_SIGLIST
 675   switch (signum)
 676     {
 677 #ifdef SIGHUP
 678     case SIGHUP: return "Hangup";
 679 #endif
 680 #ifdef SIGINT
 681     case SIGINT: return "Interrupt";
 682 #endif
 683 #ifdef SIGQUIT
 684     case SIGQUIT: return "Quit";
 685 #endif
 686 #ifdef SIGILL
 687     case SIGILL: return "Illegal instruction";
 688 #endif
 689 #ifdef SIGTRAP
 690     case SIGTRAP: return "Trace/breakpoint trap";
 691 #endif
 692 #ifdef SIGABRT
 693     case SIGABRT: return "IOT trap/Abort";
 694 #endif
 695 #ifdef SIGBUS
 696     case SIGBUS: return "Bus error";
 697 #endif
 698 #ifdef SIGFPE
 699     case SIGFPE: return "Floating point exception";
 700 #endif
 701 #ifdef SIGKILL
 702     case SIGKILL: return "Killed";
 703 #endif
 704 #ifdef SIGUSR1
 705     case SIGUSR1: return "User defined signal 1";
 706 #endif
 707 #ifdef SIGSEGV
 708     case SIGSEGV: return "Segmentation fault";
 709 #endif
 710 #ifdef SIGUSR2
 711     case SIGUSR2: return "User defined signal 2";
 712 #endif
 713 #ifdef SIGPIPE
 714     case SIGPIPE: return "Broken pipe";
 715 #endif
 716 #ifdef SIGALRM
 717     case SIGALRM: return "Alarm clock";
 718 #endif
 719 #ifdef SIGTERM
 720     case SIGTERM: return "Terminated";
 721 #endif
 722 #ifdef SIGSTKFLT
 723     case SIGSTKFLT: return "Stack fault";
 724 #endif
 725 #ifdef SIGCHLD
 726     case SIGCHLD: return "Child exited";
 727 #endif
 728 #ifdef SIGCONT
 729     case SIGCONT: return "Continued";
 730 #endif
 731 #ifdef SIGSTOP
 732     case SIGSTOP: return "Stopped (signal)";
 733 #endif
 734 #ifdef SIGTSTP
 735     case SIGTSTP: return "Stopped";
 736 #endif
 737 #ifdef SIGTTIN
 738     case SIGTTIN: return "Stopped (tty input)";
 739 #endif
 740 #ifdef SIGTTOU
 741     case SIGTTOU: return "Stopped (tty output)";
 742 #endif
 743 #ifdef SIGURG
 744     case SIGURG: return "Urgent condition";
 745 #endif
 746 #ifdef SIGXCPU
 747     case SIGXCPU: return "CPU time limit exceeded";
 748 #endif
 749 #ifdef SIGXFSZ
 750     case SIGXFSZ: return "File size limit exceeded";
 751 #endif
 752 #ifdef SIGVTALRM
 753     case SIGVTALRM: return "Virtual time alarm";
 754 #endif
 755 #ifdef SIGPROF
 756     case SIGPROF: return "Profile signal";
 757 #endif
 758 #ifdef SIGWINCH
 759     case SIGWINCH: return "Window size changed";
 760 #endif
 761 #ifdef SIGIO
 762     case SIGIO: return "Possible I/O";
 763 #endif
 764 #ifdef SIGPWR
 765     case SIGPWR: return "Power failure";
 766 #endif
 767 #ifdef SIGUNUSED
 768     case SIGUNUSED: return "Unused signal";
 769 #endif
 770     }
 771 #else /* NO_SYS_SIGLIST */
 772
 773 #ifdef NO_SYS_SIGLIST_DECL
 774   extern char *sys_siglist[];   /*(see Tue Jan 19 00:44:24 1999 in changelog)*/
 775 #endif
 776
 777   return (char*) /* this function should return const --josh */ sys_siglist [signum];
 778 #endif /* NO_SYS_SIGLIST */
 779
 780   msg = g_static_private_get (&msg_private);
 781   if (!msg)
 782     {
 783       msg = g_new (gchar, 64);
 784       g_static_private_set (&msg_private, msg, g_free);
 785     }
 786
 787   sprintf (msg, "unknown signal (%d)", signum);
 788
 789   return msg;
 790 }
 791
 792 guint
 793 g_printf_string_upper_bound (const gchar* format,
 794                              va_list      args)
 795 {
 796   guint len = 1;
 797
 798   while (*format)
 799     {
 800       gboolean long_int = FALSE;
 801       gboolean extra_long = FALSE;
 802       gchar c;
 803
 804       c = *format++;
 805
 806       if (c == '%')
 807         {
 808           gboolean done = FALSE;
 809
 810           while (*format && !done)
 811             {
 812               switch (*format++)
 813                 {
 814                   gchar *string_arg;
 815
 816                 case '*':
 817                   len += va_arg (args, int);
 818                   break;
 819                 case '1':
 820                 case '2':
 821                 case '3':
 822                 case '4':
 823                 case '5':
 824                 case '6':
 825                 case '7':
 826                 case '8':
 827                 case '9':
 828                   /* add specified format length, since it might exceed the
 829                    * size we assume it to have.
 830                    */
 831                   format -= 1;
 832                   len += strtol (format, (char**) &format, 10);
 833                   break;
 834                 case 'h':
 835                   /* ignore short int flag, since all args have at least the
 836                    * same size as an int
 837                    */
 838                   break;
 839                 case 'l':
 840                   if (long_int)
 841                     extra_long = TRUE; /* linux specific */
 842                   else
 843                     long_int = TRUE;
 844                   break;
 845                 case 'q':
 846                 case 'L':
 847                   long_int = TRUE;
 848                   extra_long = TRUE;
 849                   break;
 850                 case 's':
 851                   string_arg = va_arg (args, char *);
 852                   if (string_arg)
 853                     len += strlen (string_arg);
 854                   else
 855                     {
 856                       /* add enough padding to hold "(null)" identifier */
 857                       len += 16;
 858                     }
 859                   done = TRUE;
 860                   break;
 861                 case 'd':
 862                 case 'i':
 863                 case 'o':
 864                 case 'u':
 865                 case 'x':
 866                 case 'X':
 867 #ifdef  G_HAVE_GINT64
 868                   if (extra_long)
 869                     (void) va_arg (args, gint64);
 870                   else
 871 #endif  /* G_HAVE_GINT64 */
 872                     {
 873                       if (long_int)
 874                         (void) va_arg (args, long);
 875                       else
 876                         (void) va_arg (args, int);
 877                     }
 878                   len += extra_long ? 64 : 32;
 879                   done = TRUE;
 880                   break;
 881                 case 'D':
 882                 case 'O':
 883                 case 'U':
 884                   (void) va_arg (args, long);
 885                   len += 32;
 886                   done = TRUE;
 887                   break;
 888                 case 'e':
 889                 case 'E':
 890                 case 'f':
 891                 case 'g':
 892 #ifdef HAVE_LONG_DOUBLE
 893                   if (extra_long)
 894                     (void) va_arg (args, long double);
 895                   else
 896 #endif  /* HAVE_LONG_DOUBLE */
 897                     (void) va_arg (args, double);
 898                   len += extra_long ? 64 : 32;
 899                   done = TRUE;
 900                   break;
 901                 case 'c':
 902                   (void) va_arg (args, int);
 903                   len += 1;
 904                   done = TRUE;
 905                   break;
 906                 case 'p':
 907                 case 'n':
 908                   (void) va_arg (args, void*);
 909                   len += 32;
 910                   done = TRUE;
 911                   break;
 912                 case '%':
 913                   len += 1;
 914                   done = TRUE;
 915                   break;
 916                 default:
 917                   /* ignore unknow/invalid flags */
 918                   break;
 919                 }
 920             }
 921         }
 922       else
 923         len += 1;
 924     }
 925
 926   return len;
 927 }
 928
 929 void
 930 g_strdown (gchar  *string)
 931 {
 932   register gchar *s;
 933
 934   g_return_if_fail (string != NULL);
 935
 936   s = string;
 937
 938   while (*s)
 939     {
 940       *s = tolower (*s);
 941       s++;
 942     }
 943 }
 944
 945 void
 946 g_strup (gchar  *string)
 947 {
 948   register gchar *s;
 949
 950   g_return_if_fail (string != NULL);
 951
 952   s = string;
 953
 954   while (*s)
 955     {
 956       *s = toupper (*s);
 957       s++;
 958     }
 959 }
 960
 961 void
 962 g_strreverse (gchar       *string)
 963 {
 964   g_return_if_fail (string != NULL);
 965
 966   if (*string)
 967     {
 968       register gchar *h, *t;
 969
 970       h = string;
 971       t = string + strlen (string) - 1;
 972
 973       while (h < t)
 974         {
 975           register gchar c;
 976
 977           c = *h;
 978           *h = *t;
 979           h++;
 980           *t = c;
 981           t--;
 982         }
 983     }
 984 }
 985
 986 gint
 987 g_strcasecmp (const gchar *s1,
 988               const gchar *s2)
 989 {
 990 #ifdef HAVE_STRCASECMP
 991   return strcasecmp (s1, s2);
 992 #else
 993   gint c1, c2;
 994
 995   g_return_val_if_fail (s1 != NULL, 0);
 996   g_return_val_if_fail (s2 != NULL, 0);
 997
 998   while (*s1 && *s2)
 999     {
1000       /* According to A. Cox, some platforms have islower's that
1001        * don't work right on non-uppercase
1002        */
1003       c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
1004       c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
1005       if (c1 != c2)
1006         return (c1 - c2);
1007       s1++; s2++;
1008     }
1009
1010   return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
1011 #endif
1012 }
1013
1014 gint
1015 g_strncasecmp (const gchar *s1,
1016                const gchar *s2,
1017                guint n)
1018 {
1019 #ifdef HAVE_STRNCASECMP
1020   return strncasecmp (s1, s2, n);
1021 #else
1022   gint c1, c2;
1023
1024   g_return_val_if_fail (s1 != NULL, 0);
1025   g_return_val_if_fail (s2 != NULL, 0);
1026
1027   while (n-- && *s1 && *s2)
1028     {
1029       /* According to A. Cox, some platforms have islower's that
1030        * don't work right on non-uppercase
1031        */
1032       c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
1033       c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
1034       if (c1 != c2)
1035         return (c1 - c2);
1036       s1++; s2++;
1037     }
1038
1039   if (n)
1040     return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
1041   else
1042     return 0;
1043 #endif
1044 }
1045
1046 gchar*
1047 g_strdelimit (gchar       *string,
1048               const gchar *delimiters,
1049               gchar        new_delim)
1050 {
1051   register gchar *c;
1052
1053   g_return_val_if_fail (string != NULL, NULL);
1054
1055   if (!delimiters)
1056     delimiters = G_STR_DELIMITERS;
1057
1058   for (c = string; *c; c++)
1059     {
1060       if (strchr (delimiters, *c))
1061         *c = new_delim;
1062     }
1063
1064   return string;
1065 }
1066
1067 gchar*
1068 g_strescape (gchar *string)
1069 {
1070   gchar *q;
1071   gchar *escaped;
1072   guint backslashes = 0;
1073   gchar *p = string;
1074
1075   g_return_val_if_fail (string != NULL, NULL);
1076
1077   while (*p != '\000')
1078     backslashes += (*p++ == '\\');
1079
1080   if (!backslashes)
1081     return g_strdup (string);
1082
1083   escaped = g_new (gchar, strlen (string) + backslashes + 1);
1084
1085   p = string;
1086   q = escaped;
1087
1088   while (*p != '\000')
1089     {
1090       if (*p == '\\')
1091         *q++ = '\\';
1092       *q++ = *p++;
1093     }
1094   *q = '\000';
1095
1096   return escaped;
1097 }
1098
1099 /* blame Elliot for these next five routines */
1100 gchar*
1101 g_strchug (gchar *string)
1102 {
1103   gchar *start;
1104
1105   g_return_val_if_fail (string != NULL, NULL);
1106
1107   for (start = string; *start && isspace (*start); start++)
1108     ;
1109
1110   strcpy (string, start);
1111
1112   return string;
1113 }
1114
1115 gchar*
1116 g_strchomp (gchar *string)
1117 {
1118   gchar *s;
1119
1120   g_return_val_if_fail (string != NULL, NULL);
1121
1122   if (!*string)
1123     return string;
1124
1125   for (s = string + strlen (string) - 1; s >= string && isspace (*s); s--)
1126     *s = '\0';
1127
1128   return string;
1129 }
1130
1131 gchar**
1132 g_strsplit (const gchar *string,
1133             const gchar *delimiter,
1134             gint         max_tokens)
1135 {
1136   GSList *string_list = NULL, *slist;
1137   gchar **str_array, *s;
1138   guint i, n = 1;
1139
1140   g_return_val_if_fail (string != NULL, NULL);
1141   g_return_val_if_fail (delimiter != NULL, NULL);
1142
1143   if (max_tokens < 1)
1144     max_tokens = G_MAXINT;
1145
1146   s = strstr (string, delimiter);
1147   if (s)
1148     {
1149       guint delimiter_len = strlen (delimiter);
1150
1151       do
1152         {
1153           guint len;
1154           gchar *new_string;
1155
1156           len = s - string;
1157           new_string = g_new (gchar, len + 1);
1158           strncpy (new_string, string, len);
1159           new_string[len] = 0;
1160           string_list = g_slist_prepend (string_list, new_string);
1161           n++;
1162           string = s + delimiter_len;
1163           s = strstr (string, delimiter);
1164         }
1165       while (--max_tokens && s);
1166     }
1167   if (*string)
1168     {
1169       n++;
1170       string_list = g_slist_prepend (string_list, g_strdup (string));
1171     }
1172
1173   str_array = g_new (gchar*, n);
1174
1175   i = n - 1;
1176
1177   str_array[i--] = NULL;
1178   for (slist = string_list; slist; slist = slist->next)
1179     str_array[i--] = slist->data;
1180
1181   g_slist_free (string_list);
1182
1183   return str_array;
1184 }
1185
1186 void
1187 g_strfreev (gchar **str_array)
1188 {
1189   if (str_array)
1190     {
1191       int i;
1192
1193       for(i = 0; str_array[i] != NULL; i++)
1194         g_free(str_array[i]);
1195
1196       g_free (str_array);
1197     }
1198 }
1199
1200 gchar*
1201 g_strjoinv (const gchar  *separator,
1202             gchar       **str_array)
1203 {
1204   gchar *string;
1205
1206   g_return_val_if_fail (str_array != NULL, NULL);
1207
1208   if(separator == NULL)
1209     separator = "";
1210
1211   if (*str_array)
1212     {
1213       guint i, len;
1214       guint separator_len;
1215
1216       separator_len = strlen (separator);
1217       len = 1 + strlen (str_array[0]);
1218       for(i = 1; str_array[i] != NULL; i++)
1219         len += separator_len + strlen(str_array[i]);
1220
1221       string = g_new (gchar, len);
1222       *string = 0;
1223       strcat (string, *str_array);
1224       for (i = 1; str_array[i] != NULL; i++)
1225         {
1226           strcat (string, separator);
1227           strcat (string, str_array[i]);
1228         }
1229       }
1230   else
1231     string = g_strdup ("");
1232
1233   return string;
1234 }
1235
1236 gchar*
1237 g_strjoin (const gchar  *separator,
1238            ...)
1239 {
1240   gchar *string, *s;
1241   va_list args;
1242   guint len;
1243   guint separator_len;
1244
1245   if(separator == NULL)
1246     separator = "";
1247
1248   separator_len = strlen (separator);
1249
1250   va_start(args, separator);
1251
1252   s = va_arg(args, gchar *);
1253
1254   if(s) {
1255     len = strlen(s) + 1;
1256
1257     while((s = va_arg(args, gchar*)))
1258       {
1259         len += separator_len + strlen(s);
1260       }
1261     va_end(args);
1262
1263     string = g_new (gchar, len);
1264
1265     va_start(args, separator);
1266
1267     *string = 0;
1268     s = va_arg(args, gchar*);
1269     strcat (string, s);
1270
1271     while((s = va_arg(args, gchar*)))
1272       {
1273         strcat(string, separator);
1274         strcat(string, s);
1275       }
1276
1277   } else
1278     string = g_strdup("");
1279
1280   va_end(args);
1281
1282   return string;
1283 }