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.
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/.
40 #include <ctype.h> /* For tolower() */
41 #if !defined (HAVE_STRSIGNAL) || !defined(NO_SYS_SIGLIST_DECL)
45 /* do not include <unistd.h> in this place since it
46 * inteferes with g_strsignal() on some OSes
50 g_strdup (const gchar *str)
56 new_str = g_new (char, strlen (str) + 1);
57 strcpy (new_str, str);
66 g_memdup (gconstpointer mem,
73 new_mem = g_malloc (byte_size);
74 memcpy (new_mem, mem, byte_size);
83 g_strndup (const gchar *str,
90 new_str = g_new (gchar, n + 1);
91 strncpy (new_str, str, n);
101 g_strnfill (guint length,
104 register gchar *str, *s, *end;
106 str = g_new (gchar, length + 1);
117 g_strdup_vprintf (const gchar *format,
123 G_VA_COPY (args2, args1);
125 buffer = g_new (gchar, g_printf_string_upper_bound (format, args1));
127 vsprintf (buffer, format, args2);
134 g_strdup_printf (const gchar *format,
140 va_start (args, format);
141 buffer = g_strdup_vprintf (format, args);
148 g_strconcat (const gchar *string1, ...)
155 g_return_val_if_fail (string1 != NULL, NULL);
157 l = 1 + strlen (string1);
158 va_start (args, string1);
159 s = va_arg (args, gchar*);
163 s = va_arg (args, gchar*);
167 concat = g_new (gchar, l);
170 strcat (concat, string1);
171 va_start (args, string1);
172 s = va_arg (args, gchar*);
176 s = va_arg (args, gchar*);
184 g_strtod (const gchar *nptr,
192 g_return_val_if_fail (nptr != NULL, 0);
197 val_1 = strtod (nptr, &fail_pos_1);
199 if (fail_pos_1 && fail_pos_1[0] != 0)
203 old_locale = setlocale (LC_NUMERIC, "C");
204 val_2 = strtod (nptr, &fail_pos_2);
205 setlocale (LC_NUMERIC, old_locale);
208 if (!fail_pos_1 || fail_pos_1[0] == 0 || fail_pos_1 >= fail_pos_2)
211 *endptr = fail_pos_1;
217 *endptr = fail_pos_2;
223 g_strerror (gint errnum)
225 static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
229 return strerror (errnum);
234 case E2BIG: return "argument list too long";
237 case EACCES: return "permission denied";
240 case EADDRINUSE: return "address already in use";
243 case EADDRNOTAVAIL: return "can't assign requested address";
246 case EADV: return "advertise error";
249 case EAFNOSUPPORT: return "address family not supported by protocol family";
252 case EAGAIN: return "try again";
255 case EALIGN: return "EALIGN";
258 case EALREADY: return "operation already in progress";
261 case EBADE: return "bad exchange descriptor";
264 case EBADF: return "bad file number";
267 case EBADFD: return "file descriptor in bad state";
270 case EBADMSG: return "not a data message";
273 case EBADR: return "bad request descriptor";
276 case EBADRPC: return "RPC structure is bad";
279 case EBADRQC: return "bad request code";
282 case EBADSLT: return "invalid slot";
285 case EBFONT: return "bad font file format";
288 case EBUSY: return "mount device busy";
291 case ECHILD: return "no children";
294 case ECHRNG: return "channel number out of range";
297 case ECOMM: return "communication error on send";
300 case ECONNABORTED: return "software caused connection abort";
303 case ECONNREFUSED: return "connection refused";
306 case ECONNRESET: return "connection reset by peer";
308 #if defined(EDEADLK) && (!defined(EWOULDBLOCK) || (EDEADLK != EWOULDBLOCK))
309 case EDEADLK: return "resource deadlock avoided";
312 case EDEADLOCK: return "resource deadlock avoided";
315 case EDESTADDRREQ: return "destination address required";
318 case EDIRTY: return "mounting a dirty fs w/o force";
321 case EDOM: return "math argument out of range";
324 case EDOTDOT: return "cross mount point";
327 case EDQUOT: return "disk quota exceeded";
330 case EDUPPKG: return "duplicate package name";
333 case EEXIST: return "file already exists";
336 case EFAULT: return "bad address in system call argument";
339 case EFBIG: return "file too large";
342 case EHOSTDOWN: return "host is down";
345 case EHOSTUNREACH: return "host is unreachable";
348 case EIDRM: return "identifier removed";
351 case EINIT: return "initialization error";
354 case EINPROGRESS: return "operation now in progress";
357 case EINTR: return "interrupted system call";
360 case EINVAL: return "invalid argument";
363 case EIO: return "I/O error";
366 case EISCONN: return "socket is already connected";
369 case EISDIR: return "illegal operation on a directory";
372 case EISNAM: return "is a name file";
375 case ELBIN: return "ELBIN";
378 case EL2HLT: return "level 2 halted";
381 case EL2NSYNC: return "level 2 not synchronized";
384 case EL3HLT: return "level 3 halted";
387 case EL3RST: return "level 3 reset";
390 case ELIBACC: return "can not access a needed shared library";
393 case ELIBBAD: return "accessing a corrupted shared library";
396 case ELIBEXEC: return "can not exec a shared library directly";
399 case ELIBMAX: return "attempting to link in more shared libraries than system limit";
402 case ELIBSCN: return ".lib section in a.out corrupted";
405 case ELNRNG: return "link number out of range";
408 case ELOOP: return "too many levels of symbolic links";
411 case EMFILE: return "too many open files";
414 case EMLINK: return "too many links";
417 case EMSGSIZE: return "message too long";
420 case EMULTIHOP: return "multihop attempted";
423 case ENAMETOOLONG: return "file name too long";
426 case ENAVAIL: return "not available";
429 case ENET: return "ENET";
432 case ENETDOWN: return "network is down";
435 case ENETRESET: return "network dropped connection on reset";
438 case ENETUNREACH: return "network is unreachable";
441 case ENFILE: return "file table overflow";
444 case ENOANO: return "anode table overflow";
446 #if defined(ENOBUFS) && (!defined(ENOSR) || (ENOBUFS != ENOSR))
447 case ENOBUFS: return "no buffer space available";
450 case ENOCSI: return "no CSI structure available";
453 case ENODATA: return "no data available";
456 case ENODEV: return "no such device";
459 case ENOENT: return "no such file or directory";
462 case ENOEXEC: return "exec format error";
465 case ENOLCK: return "no locks available";
468 case ENOLINK: return "link has be severed";
471 case ENOMEM: return "not enough memory";
474 case ENOMSG: return "no message of desired type";
477 case ENONET: return "machine is not on the network";
480 case ENOPKG: return "package not installed";
483 case ENOPROTOOPT: return "bad proocol option";
486 case ENOSPC: return "no space left on device";
489 case ENOSR: return "out of stream resources";
492 case ENOSTR: return "not a stream device";
495 case ENOSYM: return "unresolved symbol name";
498 case ENOSYS: return "function not implemented";
501 case ENOTBLK: return "block device required";
504 case ENOTCONN: return "socket is not connected";
507 case ENOTDIR: return "not a directory";
510 case ENOTEMPTY: return "directory not empty";
513 case ENOTNAM: return "not a name file";
516 case ENOTSOCK: return "socket operation on non-socket";
519 case ENOTTY: return "inappropriate device for ioctl";
522 case ENOTUNIQ: return "name not unique on network";
525 case ENXIO: return "no such device or address";
528 case EOPNOTSUPP: return "operation not supported on socket";
531 case EPERM: return "not owner";
534 case EPFNOSUPPORT: return "protocol family not supported";
537 case EPIPE: return "broken pipe";
540 case EPROCLIM: return "too many processes";
543 case EPROCUNAVAIL: return "bad procedure for program";
546 case EPROGMISMATCH: return "program version wrong";
549 case EPROGUNAVAIL: return "RPC program not available";
552 case EPROTO: return "protocol error";
554 #ifdef EPROTONOSUPPORT
555 case EPROTONOSUPPORT: return "protocol not suppored";
558 case EPROTOTYPE: return "protocol wrong type for socket";
561 case ERANGE: return "math result unrepresentable";
563 #if defined(EREFUSED) && (!defined(ECONNREFUSED) || (EREFUSED != ECONNREFUSED))
564 case EREFUSED: return "EREFUSED";
567 case EREMCHG: return "remote address changed";
570 case EREMDEV: return "remote device";
573 case EREMOTE: return "pathname hit remote file system";
576 case EREMOTEIO: return "remote i/o error";
578 #ifdef EREMOTERELEASE
579 case EREMOTERELEASE: return "EREMOTERELEASE";
582 case EROFS: return "read-only file system";
585 case ERPCMISMATCH: return "RPC version is wrong";
588 case ERREMOTE: return "object is remote";
591 case ESHUTDOWN: return "can't send afer socket shutdown";
593 #ifdef ESOCKTNOSUPPORT
594 case ESOCKTNOSUPPORT: return "socket type not supported";
597 case ESPIPE: return "invalid seek";
600 case ESRCH: return "no such process";
603 case ESRMNT: return "srmount error";
606 case ESTALE: return "stale remote file handle";
609 case ESUCCESS: return "Error 0";
612 case ETIME: return "timer expired";
615 case ETIMEDOUT: return "connection timed out";
618 case ETOOMANYREFS: return "too many references: can't splice";
621 case ETXTBSY: return "text file or pseudo-device busy";
624 case EUCLEAN: return "structure needs cleaning";
627 case EUNATCH: return "protocol driver not attached";
630 case EUSERS: return "too many users";
633 case EVERSION: return "version mismatch";
635 #if defined(EWOULDBLOCK) && (!defined(EAGAIN) || (EWOULDBLOCK != EAGAIN))
636 case EWOULDBLOCK: return "operation would block";
639 case EXDEV: return "cross-domain link";
642 case EXFULL: return "message tables full";
645 #else /* NO_SYS_ERRLIST */
647 extern char *sys_errlist[];
649 if ((errnum > 0) && (errnum <= sys_nerr))
650 return sys_errlist [errnum];
651 #endif /* NO_SYS_ERRLIST */
653 msg = g_static_private_get (&msg_private);
656 msg = g_new (gchar, 64);
657 g_static_private_set (&msg_private, msg, g_free);
660 sprintf (msg, "unknown error (%d)", errnum);
666 g_strsignal (gint signum)
668 static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
671 #ifdef HAVE_STRSIGNAL
672 #ifdef GLIB_NATIVE_BEOS
673 extern const char * strsignal(int);
674 #else /* !GLIB_NATIVE_BEOS */
675 /* this is declared differently (const) in string.h on BeOS */
676 extern char *strsignal (int sig);
677 #endif /* !GLIB_NATIVE_BEOS */
678 return strsignal (signum);
683 case SIGHUP: return "Hangup";
686 case SIGINT: return "Interrupt";
689 case SIGQUIT: return "Quit";
692 case SIGILL: return "Illegal instruction";
695 case SIGTRAP: return "Trace/breakpoint trap";
698 case SIGABRT: return "IOT trap/Abort";
701 case SIGBUS: return "Bus error";
704 case SIGFPE: return "Floating point exception";
707 case SIGKILL: return "Killed";
710 case SIGUSR1: return "User defined signal 1";
713 case SIGSEGV: return "Segmentation fault";
716 case SIGUSR2: return "User defined signal 2";
719 case SIGPIPE: return "Broken pipe";
722 case SIGALRM: return "Alarm clock";
725 case SIGTERM: return "Terminated";
728 case SIGSTKFLT: return "Stack fault";
731 case SIGCHLD: return "Child exited";
734 case SIGCONT: return "Continued";
737 case SIGSTOP: return "Stopped (signal)";
740 case SIGTSTP: return "Stopped";
743 case SIGTTIN: return "Stopped (tty input)";
746 case SIGTTOU: return "Stopped (tty output)";
749 case SIGURG: return "Urgent condition";
752 case SIGXCPU: return "CPU time limit exceeded";
755 case SIGXFSZ: return "File size limit exceeded";
758 case SIGVTALRM: return "Virtual time alarm";
761 case SIGPROF: return "Profile signal";
764 case SIGWINCH: return "Window size changed";
767 case SIGIO: return "Possible I/O";
770 case SIGPWR: return "Power failure";
773 case SIGUNUSED: return "Unused signal";
776 #else /* NO_SYS_SIGLIST */
778 #ifdef NO_SYS_SIGLIST_DECL
779 extern char *sys_siglist[]; /*(see Tue Jan 19 00:44:24 1999 in changelog)*/
782 return (char*) /* this function should return const --josh */ sys_siglist [signum];
783 #endif /* NO_SYS_SIGLIST */
785 msg = g_static_private_get (&msg_private);
788 msg = g_new (gchar, 64);
789 g_static_private_set (&msg_private, msg, g_free);
792 sprintf (msg, "unknown signal (%d)", signum);
798 g_printf_string_upper_bound (const gchar* format,
805 gboolean long_int = FALSE;
806 gboolean extra_long = FALSE;
813 gboolean done = FALSE;
815 while (*format && !done)
822 len += va_arg (args, int);
833 /* add specified format length, since it might exceed the
834 * size we assume it to have.
837 len += strtol (format, (char**) &format, 10);
840 /* ignore short int flag, since all args have at least the
841 * same size as an int
846 extra_long = TRUE; /* linux specific */
856 string_arg = va_arg (args, char *);
858 len += strlen (string_arg);
861 /* add enough padding to hold "(null)" identifier */
874 (void) va_arg (args, gint64);
876 #endif /* G_HAVE_GINT64 */
879 (void) va_arg (args, long);
881 (void) va_arg (args, int);
883 len += extra_long ? 64 : 32;
889 (void) va_arg (args, long);
897 #ifdef HAVE_LONG_DOUBLE
899 (void) va_arg (args, long double);
901 #endif /* HAVE_LONG_DOUBLE */
902 (void) va_arg (args, double);
903 len += extra_long ? 64 : 32;
907 (void) va_arg (args, int);
913 (void) va_arg (args, void*);
922 /* ignore unknow/invalid flags */
935 g_strdown (gchar *string)
939 g_return_if_fail (string != NULL);
951 g_strup (gchar *string)
955 g_return_if_fail (string != NULL);
967 g_strreverse (gchar *string)
969 g_return_if_fail (string != NULL);
973 register gchar *h, *t;
976 t = string + strlen (string) - 1;
992 g_strcasecmp (const gchar *s1,
995 #ifdef HAVE_STRCASECMP
996 g_return_val_if_fail (s1 != NULL, 0);
997 g_return_val_if_fail (s2 != NULL, 0);
999 return strcasecmp (s1, s2);
1003 g_return_val_if_fail (s1 != NULL, 0);
1004 g_return_val_if_fail (s2 != NULL, 0);
1008 /* According to A. Cox, some platforms have islower's that
1009 * don't work right on non-uppercase
1011 c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
1012 c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
1018 return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
1023 g_strncasecmp (const gchar *s1,
1027 #ifdef HAVE_STRNCASECMP
1028 return strncasecmp (s1, s2, n);
1032 g_return_val_if_fail (s1 != NULL, 0);
1033 g_return_val_if_fail (s2 != NULL, 0);
1035 while (n-- && *s1 && *s2)
1037 /* According to A. Cox, some platforms have islower's that
1038 * don't work right on non-uppercase
1040 c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
1041 c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
1048 return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
1055 g_strdelimit (gchar *string,
1056 const gchar *delimiters,
1061 g_return_val_if_fail (string != NULL, NULL);
1064 delimiters = G_STR_DELIMITERS;
1066 for (c = string; *c; c++)
1068 if (strchr (delimiters, *c))
1076 g_strccpy (gchar *dest,
1077 const gchar *source)
1079 const gchar *p = source;
1082 g_return_val_if_fail (dest != NULL, NULL);
1091 case '0': case '1': case '2': case '3': case '4':
1092 case '5': case '6': case '7':
1094 while ((*p >= '0') && (*p <= '7'))
1096 *q = (*q * 8) + (*p - '0');
1117 default: /* Also handles \" and \\ */
1131 g_strecpy (gchar *dest,
1133 const gchar *exceptions)
1135 const guchar *p = (guchar *) src;
1139 memset (excmap, 0, 256);
1142 guchar *e = (guchar *) exceptions;
1188 if ((*p < ' ') || (*p >= 0177))
1191 *q++ = '0' + (((*p) >> 6) & 07);
1192 *q++ = '0' + (((*p) >> 3) & 07);
1193 *q++ = '0' + ((*p) & 07);
1206 /* blame Elliot for these next five routines */
1208 g_strchug (gchar *string)
1212 g_return_val_if_fail (string != NULL, NULL);
1214 for (start = string; *start && isspace (*start); start++)
1217 g_memmove(string, start, strlen(start) + 1);
1223 g_strchomp (gchar *string)
1227 g_return_val_if_fail (string != NULL, NULL);
1232 for (s = string + strlen (string) - 1; s >= string && isspace ((guchar)*s);
1240 g_strsplit (const gchar *string,
1241 const gchar *delimiter,
1244 GSList *string_list = NULL, *slist;
1245 gchar **str_array, *s;
1248 g_return_val_if_fail (string != NULL, NULL);
1249 g_return_val_if_fail (delimiter != NULL, NULL);
1252 max_tokens = G_MAXINT;
1254 s = strstr (string, delimiter);
1257 guint delimiter_len = strlen (delimiter);
1265 new_string = g_new (gchar, len + 1);
1266 strncpy (new_string, string, len);
1267 new_string[len] = 0;
1268 string_list = g_slist_prepend (string_list, new_string);
1270 string = s + delimiter_len;
1271 s = strstr (string, delimiter);
1273 while (--max_tokens && s);
1278 string_list = g_slist_prepend (string_list, g_strdup (string));
1281 str_array = g_new (gchar*, n);
1285 str_array[i--] = NULL;
1286 for (slist = string_list; slist; slist = slist->next)
1287 str_array[i--] = slist->data;
1289 g_slist_free (string_list);
1295 g_strfreev (gchar **str_array)
1301 for(i = 0; str_array[i] != NULL; i++)
1302 g_free(str_array[i]);
1309 g_strjoinv (const gchar *separator,
1314 g_return_val_if_fail (str_array != NULL, NULL);
1316 if (separator == NULL)
1322 guint separator_len;
1324 separator_len = strlen (separator);
1325 len = 1 + strlen (str_array[0]);
1326 for(i = 1; str_array[i] != NULL; i++)
1327 len += separator_len + strlen(str_array[i]);
1329 string = g_new (gchar, len);
1331 strcat (string, *str_array);
1332 for (i = 1; str_array[i] != NULL; i++)
1334 strcat (string, separator);
1335 strcat (string, str_array[i]);
1339 string = g_strdup ("");
1345 g_strjoin (const gchar *separator,
1351 guint separator_len;
1353 if (separator == NULL)
1356 separator_len = strlen (separator);
1358 va_start (args, separator);
1360 s = va_arg (args, gchar*);
1366 s = va_arg (args, gchar*);
1369 len += separator_len + strlen (s);
1370 s = va_arg (args, gchar*);
1374 string = g_new (gchar, len + 1);
1377 va_start (args, separator);
1379 s = va_arg (args, gchar*);
1382 s = va_arg (args, gchar*);
1385 strcat (string, separator);
1387 s = va_arg (args, gchar*);
1391 string = g_strdup ("");