1 /* GLIB - Library of useful routines for C programming
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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.
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.
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.
24 #include <ctype.h> /* For tolower() */
26 /* do not include <unistd.h> in this place since it
27 * inteferes with g_strsignal() on some OSes
31 g_strdup (const gchar *str)
37 new_str = g_new (char, strlen (str) + 1);
38 strcpy (new_str, str);
47 g_memdup (gconstpointer mem,
54 new_mem = g_malloc (byte_size);
55 memcpy (new_mem, mem, byte_size);
64 g_strndup (const gchar *str,
71 new_str = g_new (gchar, n + 1);
72 strncpy (new_str, str, n);
82 g_strnfill (guint length,
85 register gchar *str, *s, *end;
87 str = g_new (gchar, length + 1);
98 g_strdup_vprintf (const gchar *format,
104 G_VA_COPY (args2, args1);
106 buffer = g_new (gchar, g_printf_string_upper_bound (format, args1));
108 vsprintf (buffer, format, args2);
115 g_strdup_printf (const gchar *format,
121 va_start (args, format);
122 buffer = g_strdup_vprintf (format, args);
129 g_strconcat (const gchar *string1, ...)
136 g_return_val_if_fail (string1 != NULL, NULL);
138 l = 1 + strlen (string1);
139 va_start (args, string1);
140 s = va_arg (args, gchar*);
144 s = va_arg (args, gchar*);
148 concat = g_new (gchar, l);
151 strcat (concat, string1);
152 va_start (args, string1);
153 s = va_arg (args, gchar*);
157 s = va_arg (args, gchar*);
165 g_strtod (const gchar *nptr,
173 g_return_val_if_fail (nptr != NULL, 0);
178 val_1 = strtod (nptr, &fail_pos_1);
180 if (fail_pos_1 && fail_pos_1[0] != 0)
184 old_locale = setlocale (LC_NUMERIC, "C");
185 val_2 = strtod (nptr, &fail_pos_2);
186 setlocale (LC_NUMERIC, old_locale);
189 if (!fail_pos_1 || fail_pos_1[0] == 0 || fail_pos_1 >= fail_pos_2)
192 *endptr = fail_pos_1;
198 *endptr = fail_pos_2;
204 g_strerror (gint errnum)
209 return strerror (errnum);
214 case E2BIG: return "argument list too long";
217 case EACCES: return "permission denied";
220 case EADDRINUSE: return "address already in use";
223 case EADDRNOTAVAIL: return "can't assign requested address";
226 case EADV: return "advertise error";
229 case EAFNOSUPPORT: return "address family not supported by protocol family";
232 case EAGAIN: return "try again";
235 case EALIGN: return "EALIGN";
238 case EALREADY: return "operation already in progress";
241 case EBADE: return "bad exchange descriptor";
244 case EBADF: return "bad file number";
247 case EBADFD: return "file descriptor in bad state";
250 case EBADMSG: return "not a data message";
253 case EBADR: return "bad request descriptor";
256 case EBADRPC: return "RPC structure is bad";
259 case EBADRQC: return "bad request code";
262 case EBADSLT: return "invalid slot";
265 case EBFONT: return "bad font file format";
268 case EBUSY: return "mount device busy";
271 case ECHILD: return "no children";
274 case ECHRNG: return "channel number out of range";
277 case ECOMM: return "communication error on send";
280 case ECONNABORTED: return "software caused connection abort";
283 case ECONNREFUSED: return "connection refused";
286 case ECONNRESET: return "connection reset by peer";
288 #if defined(EDEADLK) && (!defined(EWOULDBLOCK) || (EDEADLK != EWOULDBLOCK))
289 case EDEADLK: return "resource deadlock avoided";
292 case EDEADLOCK: return "resource deadlock avoided";
295 case EDESTADDRREQ: return "destination address required";
298 case EDIRTY: return "mounting a dirty fs w/o force";
301 case EDOM: return "math argument out of range";
304 case EDOTDOT: return "cross mount point";
307 case EDQUOT: return "disk quota exceeded";
310 case EDUPPKG: return "duplicate package name";
313 case EEXIST: return "file already exists";
316 case EFAULT: return "bad address in system call argument";
319 case EFBIG: return "file too large";
322 case EHOSTDOWN: return "host is down";
325 case EHOSTUNREACH: return "host is unreachable";
328 case EIDRM: return "identifier removed";
331 case EINIT: return "initialization error";
334 case EINPROGRESS: return "operation now in progress";
337 case EINTR: return "interrupted system call";
340 case EINVAL: return "invalid argument";
343 case EIO: return "I/O error";
346 case EISCONN: return "socket is already connected";
349 case EISDIR: return "illegal operation on a directory";
352 case EISNAM: return "is a name file";
355 case ELBIN: return "ELBIN";
358 case EL2HLT: return "level 2 halted";
361 case EL2NSYNC: return "level 2 not synchronized";
364 case EL3HLT: return "level 3 halted";
367 case EL3RST: return "level 3 reset";
370 case ELIBACC: return "can not access a needed shared library";
373 case ELIBBAD: return "accessing a corrupted shared library";
376 case ELIBEXEC: return "can not exec a shared library directly";
379 case ELIBMAX: return "attempting to link in more shared libraries than system limit";
382 case ELIBSCN: return ".lib section in a.out corrupted";
385 case ELNRNG: return "link number out of range";
388 case ELOOP: return "too many levels of symbolic links";
391 case EMFILE: return "too many open files";
394 case EMLINK: return "too many links";
397 case EMSGSIZE: return "message too long";
400 case EMULTIHOP: return "multihop attempted";
403 case ENAMETOOLONG: return "file name too long";
406 case ENAVAIL: return "not available";
409 case ENET: return "ENET";
412 case ENETDOWN: return "network is down";
415 case ENETRESET: return "network dropped connection on reset";
418 case ENETUNREACH: return "network is unreachable";
421 case ENFILE: return "file table overflow";
424 case ENOANO: return "anode table overflow";
426 #if defined(ENOBUFS) && (!defined(ENOSR) || (ENOBUFS != ENOSR))
427 case ENOBUFS: return "no buffer space available";
430 case ENOCSI: return "no CSI structure available";
433 case ENODATA: return "no data available";
436 case ENODEV: return "no such device";
439 case ENOENT: return "no such file or directory";
442 case ENOEXEC: return "exec format error";
445 case ENOLCK: return "no locks available";
448 case ENOLINK: return "link has be severed";
451 case ENOMEM: return "not enough memory";
454 case ENOMSG: return "no message of desired type";
457 case ENONET: return "machine is not on the network";
460 case ENOPKG: return "package not installed";
463 case ENOPROTOOPT: return "bad proocol option";
466 case ENOSPC: return "no space left on device";
469 case ENOSR: return "out of stream resources";
472 case ENOSTR: return "not a stream device";
475 case ENOSYM: return "unresolved symbol name";
478 case ENOSYS: return "function not implemented";
481 case ENOTBLK: return "block device required";
484 case ENOTCONN: return "socket is not connected";
487 case ENOTDIR: return "not a directory";
490 case ENOTEMPTY: return "directory not empty";
493 case ENOTNAM: return "not a name file";
496 case ENOTSOCK: return "socket operation on non-socket";
499 case ENOTTY: return "inappropriate device for ioctl";
502 case ENOTUNIQ: return "name not unique on network";
505 case ENXIO: return "no such device or address";
508 case EOPNOTSUPP: return "operation not supported on socket";
511 case EPERM: return "not owner";
514 case EPFNOSUPPORT: return "protocol family not supported";
517 case EPIPE: return "broken pipe";
520 case EPROCLIM: return "too many processes";
523 case EPROCUNAVAIL: return "bad procedure for program";
526 case EPROGMISMATCH: return "program version wrong";
529 case EPROGUNAVAIL: return "RPC program not available";
532 case EPROTO: return "protocol error";
534 #ifdef EPROTONOSUPPORT
535 case EPROTONOSUPPORT: return "protocol not suppored";
538 case EPROTOTYPE: return "protocol wrong type for socket";
541 case ERANGE: return "math result unrepresentable";
543 #if defined(EREFUSED) && (!defined(ECONNREFUSED) || (EREFUSED != ECONNREFUSED))
544 case EREFUSED: return "EREFUSED";
547 case EREMCHG: return "remote address changed";
550 case EREMDEV: return "remote device";
553 case EREMOTE: return "pathname hit remote file system";
556 case EREMOTEIO: return "remote i/o error";
558 #ifdef EREMOTERELEASE
559 case EREMOTERELEASE: return "EREMOTERELEASE";
562 case EROFS: return "read-only file system";
565 case ERPCMISMATCH: return "RPC version is wrong";
568 case ERREMOTE: return "object is remote";
571 case ESHUTDOWN: return "can't send afer socket shutdown";
573 #ifdef ESOCKTNOSUPPORT
574 case ESOCKTNOSUPPORT: return "socket type not supported";
577 case ESPIPE: return "invalid seek";
580 case ESRCH: return "no such process";
583 case ESRMNT: return "srmount error";
586 case ESTALE: return "stale remote file handle";
589 case ESUCCESS: return "Error 0";
592 case ETIME: return "timer expired";
595 case ETIMEDOUT: return "connection timed out";
598 case ETOOMANYREFS: return "too many references: can't splice";
601 case ETXTBSY: return "text file or pseudo-device busy";
604 case EUCLEAN: return "structure needs cleaning";
607 case EUNATCH: return "protocol driver not attached";
610 case EUSERS: return "too many users";
613 case EVERSION: return "version mismatch";
615 #if defined(EWOULDBLOCK) && (!defined(EAGAIN) || (EWOULDBLOCK != EAGAIN))
616 case EWOULDBLOCK: return "operation would block";
619 case EXDEV: return "cross-domain link";
622 case EXFULL: return "message tables full";
625 #else /* NO_SYS_ERRLIST */
627 extern char *sys_errlist[];
629 if ((errnum > 0) && (errnum <= sys_nerr))
630 return sys_errlist [errnum];
631 #endif /* NO_SYS_ERRLIST */
633 sprintf (msg, "unknown error (%d)", errnum);
638 g_strsignal (gint signum)
642 #ifdef HAVE_STRSIGNAL
643 extern char *strsignal (int sig);
644 return strsignal (signum);
649 case SIGHUP: return "Hangup";
652 case SIGINT: return "Interrupt";
655 case SIGQUIT: return "Quit";
658 case SIGILL: return "Illegal instruction";
661 case SIGTRAP: return "Trace/breakpoint trap";
664 case SIGABRT: return "IOT trap/Abort";
667 case SIGBUS: return "Bus error";
670 case SIGFPE: return "Floating point exception";
673 case SIGKILL: return "Killed";
676 case SIGUSR1: return "User defined signal 1";
679 case SIGSEGV: return "Segmentation fault";
682 case SIGUSR2: return "User defined signal 2";
685 case SIGPIPE: return "Broken pipe";
688 case SIGALRM: return "Alarm clock";
691 case SIGTERM: return "Terminated";
694 case SIGSTKFLT: return "Stack fault";
697 case SIGCHLD: return "Child exited";
700 case SIGCONT: return "Continued";
703 case SIGSTOP: return "Stopped (signal)";
706 case SIGTSTP: return "Stopped";
709 case SIGTTIN: return "Stopped (tty input)";
712 case SIGTTOU: return "Stopped (tty output)";
715 case SIGURG: return "Urgent condition";
718 case SIGXCPU: return "CPU time limit exceeded";
721 case SIGXFSZ: return "File size limit exceeded";
724 case SIGVTALRM: return "Virtual time alarm";
727 case SIGPROF: return "Profile signal";
730 case SIGWINCH: return "Window size changed";
733 case SIGIO: return "Possible I/O";
736 case SIGPWR: return "Power failure";
739 case SIGUNUSED: return "Unused signal";
742 #else /* NO_SYS_SIGLIST */
743 extern char *sys_siglist[];
744 return sys_siglist [signum];
745 #endif /* NO_SYS_SIGLIST */
747 sprintf (msg, "unknown signal (%d)", signum);
752 g_printf_string_upper_bound (const gchar* format,
759 gboolean long_int = FALSE;
760 gboolean extra_long = FALSE;
767 gboolean done = FALSE;
769 while (*format && !done)
776 len += va_arg (args, int);
787 /* add specified format length, since it might exceed the
788 * size we assume it to have.
791 len += strtol (format, (char**) &format, 10);
794 /* ignore short int flag, since all args have at least the
795 * same size as an int
800 extra_long = TRUE; /* linux specific */
810 string_arg = va_arg (args, char *);
812 len += strlen (string_arg);
815 /* add enough padding to hold "(null)" identifier */
828 (void) va_arg (args, gint64);
830 #endif /* HAVE_GINT64 */
833 (void) va_arg (args, long);
835 (void) va_arg (args, int);
837 len += extra_long ? 64 : 32;
843 (void) va_arg (args, long);
851 #ifdef HAVE_LONG_DOUBLE
853 (void) va_arg (args, long double);
855 #endif /* HAVE_LONG_DOUBLE */
856 (void) va_arg (args, double);
857 len += extra_long ? 64 : 32;
861 (void) va_arg (args, int);
867 (void) va_arg (args, void*);
876 /* ignore unknow/invalid flags */
889 g_strdown (gchar *string)
893 g_return_if_fail (string != NULL);
905 g_strup (gchar *string)
909 g_return_if_fail (string != NULL);
921 g_strreverse (gchar *string)
923 g_return_if_fail (string != NULL);
927 register gchar *h, *t;
930 t = string + strlen (string) - 1;
946 g_strcasecmp (const gchar *s1,
949 #ifdef HAVE_STRCASECMP
950 return strcasecmp (s1, s2);
954 g_return_val_if_fail (s1 != NULL, 0);
955 g_return_val_if_fail (s2 != NULL, 0);
959 /* According to A. Cox, some platforms have islower's that
960 * don't work right on non-uppercase
962 c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
963 c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
969 return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
974 g_strdelimit (gchar *string,
975 const gchar *delimiters,
980 g_return_val_if_fail (string != NULL, NULL);
983 delimiters = G_STR_DELIMITERS;
985 for (c = string; *c; c++)
987 if (strchr (delimiters, *c))
995 g_strescape (gchar *string)
999 guint backslashes = 0;
1002 g_return_val_if_fail (string != NULL, NULL);
1004 while (*p != '\000')
1005 backslashes += (*p++ == '\\');
1008 return g_strdup (string);
1010 escaped = g_new (gchar, strlen (string) + backslashes + 1);
1015 while (*p != '\000')
1026 /* blame Elliot for these next five routines */
1028 g_strchug (gchar *string)
1032 g_return_val_if_fail (string != NULL, NULL);
1034 for (start = string; *start && isspace (*start); start++)
1037 strcpy (string, start);
1043 g_strchomp (gchar *string)
1047 g_return_val_if_fail (string != NULL, NULL);
1052 for (s = string + strlen (string) - 1; s >= string && isspace (*s); s--)
1059 g_strsplit (const gchar *string,
1060 const gchar *delimiter,
1063 GSList *string_list = NULL, *slist;
1064 gchar **str_array, *s;
1067 g_return_val_if_fail (string != NULL, NULL);
1068 g_return_val_if_fail (delimiter != NULL, NULL);
1071 max_tokens = G_MAXINT;
1073 s = strstr (string, delimiter);
1076 guint delimiter_len = strlen (delimiter);
1084 new_string = g_new (gchar, len + 1);
1085 strncpy (new_string, string, len);
1086 new_string[len] = 0;
1087 string_list = g_slist_prepend (string_list, new_string);
1089 string = s + delimiter_len;
1090 s = strstr (string, delimiter);
1092 while (--max_tokens && s);
1097 string_list = g_slist_prepend (string_list, g_strdup (string));
1100 str_array = g_new (gchar*, n);
1104 str_array[i--] = NULL;
1105 for (slist = string_list; slist; slist = slist->next)
1106 str_array[i--] = slist->data;
1108 g_slist_free (string_list);
1114 g_strfreev (gchar **str_array)
1120 for(i = 0; str_array[i] != NULL; i++)
1121 g_free(str_array[i]);
1128 g_strjoinv (const gchar *separator,
1133 g_return_val_if_fail (str_array != NULL, NULL);
1135 if(separator == NULL)
1141 guint separator_len;
1143 separator_len = strlen (separator);
1144 len = 1 + strlen (str_array[0]);
1145 for(i = 1; str_array[i] != NULL; i++)
1146 len += separator_len + strlen(str_array[i]);
1148 string = g_new (gchar, len);
1150 strcat (string, *str_array);
1151 for (i = 1; str_array[i] != NULL; i++)
1153 strcat (string, separator);
1154 strcat (string, str_array[i]);
1158 string = g_strdup ("");
1164 g_strjoin (const gchar *separator,
1170 guint separator_len;
1172 if(separator == NULL)
1175 separator_len = strlen (separator);
1177 va_start(args, separator);
1179 s = va_arg(args, gchar *);
1182 len = strlen(s) + 1;
1184 while((s = va_arg(args, gchar*)))
1186 len += separator_len + strlen(s);
1190 string = g_new (gchar, len);
1192 va_start(args, separator);
1195 s = va_arg(args, gchar*);
1198 while((s = va_arg(args, gchar*)))
1200 strcat(string, separator);
1205 string = g_strdup("");