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 extern char *strsignal (int sig);
673 return strsignal (signum);
678 case SIGHUP: return "Hangup";
681 case SIGINT: return "Interrupt";
684 case SIGQUIT: return "Quit";
687 case SIGILL: return "Illegal instruction";
690 case SIGTRAP: return "Trace/breakpoint trap";
693 case SIGABRT: return "IOT trap/Abort";
696 case SIGBUS: return "Bus error";
699 case SIGFPE: return "Floating point exception";
702 case SIGKILL: return "Killed";
705 case SIGUSR1: return "User defined signal 1";
708 case SIGSEGV: return "Segmentation fault";
711 case SIGUSR2: return "User defined signal 2";
714 case SIGPIPE: return "Broken pipe";
717 case SIGALRM: return "Alarm clock";
720 case SIGTERM: return "Terminated";
723 case SIGSTKFLT: return "Stack fault";
726 case SIGCHLD: return "Child exited";
729 case SIGCONT: return "Continued";
732 case SIGSTOP: return "Stopped (signal)";
735 case SIGTSTP: return "Stopped";
738 case SIGTTIN: return "Stopped (tty input)";
741 case SIGTTOU: return "Stopped (tty output)";
744 case SIGURG: return "Urgent condition";
747 case SIGXCPU: return "CPU time limit exceeded";
750 case SIGXFSZ: return "File size limit exceeded";
753 case SIGVTALRM: return "Virtual time alarm";
756 case SIGPROF: return "Profile signal";
759 case SIGWINCH: return "Window size changed";
762 case SIGIO: return "Possible I/O";
765 case SIGPWR: return "Power failure";
768 case SIGUNUSED: return "Unused signal";
771 #else /* NO_SYS_SIGLIST */
773 #ifdef NO_SYS_SIGLIST_DECL
774 extern char *sys_siglist[]; /*(see Tue Jan 19 00:44:24 1999 in changelog)*/
777 return (char*) /* this function should return const --josh */ sys_siglist [signum];
778 #endif /* NO_SYS_SIGLIST */
780 msg = g_static_private_get (&msg_private);
783 msg = g_new (gchar, 64);
784 g_static_private_set (&msg_private, msg, g_free);
787 sprintf (msg, "unknown signal (%d)", signum);
793 g_printf_string_upper_bound (const gchar* format,
800 gboolean long_int = FALSE;
801 gboolean extra_long = FALSE;
808 gboolean done = FALSE;
810 while (*format && !done)
817 len += va_arg (args, int);
828 /* add specified format length, since it might exceed the
829 * size we assume it to have.
832 len += strtol (format, (char**) &format, 10);
835 /* ignore short int flag, since all args have at least the
836 * same size as an int
841 extra_long = TRUE; /* linux specific */
851 string_arg = va_arg (args, char *);
853 len += strlen (string_arg);
856 /* add enough padding to hold "(null)" identifier */
869 (void) va_arg (args, gint64);
871 #endif /* G_HAVE_GINT64 */
874 (void) va_arg (args, long);
876 (void) va_arg (args, int);
878 len += extra_long ? 64 : 32;
884 (void) va_arg (args, long);
892 #ifdef HAVE_LONG_DOUBLE
894 (void) va_arg (args, long double);
896 #endif /* HAVE_LONG_DOUBLE */
897 (void) va_arg (args, double);
898 len += extra_long ? 64 : 32;
902 (void) va_arg (args, int);
908 (void) va_arg (args, void*);
917 /* ignore unknow/invalid flags */
930 g_strdown (gchar *string)
934 g_return_if_fail (string != NULL);
946 g_strup (gchar *string)
950 g_return_if_fail (string != NULL);
962 g_strreverse (gchar *string)
964 g_return_if_fail (string != NULL);
968 register gchar *h, *t;
971 t = string + strlen (string) - 1;
987 g_strcasecmp (const gchar *s1,
990 #ifdef HAVE_STRCASECMP
991 return strcasecmp (s1, s2);
995 g_return_val_if_fail (s1 != NULL, 0);
996 g_return_val_if_fail (s2 != NULL, 0);
1000 /* According to A. Cox, some platforms have islower's that
1001 * don't work right on non-uppercase
1003 c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
1004 c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
1010 return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
1015 g_strncasecmp (const gchar *s1,
1019 #ifdef HAVE_STRNCASECMP
1020 return strncasecmp (s1, s2, n);
1024 g_return_val_if_fail (s1 != NULL, 0);
1025 g_return_val_if_fail (s2 != NULL, 0);
1027 while (n-- && *s1 && *s2)
1029 /* According to A. Cox, some platforms have islower's that
1030 * don't work right on non-uppercase
1032 c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
1033 c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
1040 return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
1047 g_strdelimit (gchar *string,
1048 const gchar *delimiters,
1053 g_return_val_if_fail (string != NULL, NULL);
1056 delimiters = G_STR_DELIMITERS;
1058 for (c = string; *c; c++)
1060 if (strchr (delimiters, *c))
1068 g_strescape (gchar *string)
1072 guint backslashes = 0;
1075 g_return_val_if_fail (string != NULL, NULL);
1077 while (*p != '\000')
1078 backslashes += (*p++ == '\\');
1081 return g_strdup (string);
1083 escaped = g_new (gchar, strlen (string) + backslashes + 1);
1088 while (*p != '\000')
1099 /* blame Elliot for these next five routines */
1101 g_strchug (gchar *string)
1105 g_return_val_if_fail (string != NULL, NULL);
1107 for (start = string; *start && isspace (*start); start++)
1110 strcpy (string, start);
1116 g_strchomp (gchar *string)
1120 g_return_val_if_fail (string != NULL, NULL);
1125 for (s = string + strlen (string) - 1; s >= string && isspace (*s); s--)
1132 g_strsplit (const gchar *string,
1133 const gchar *delimiter,
1136 GSList *string_list = NULL, *slist;
1137 gchar **str_array, *s;
1140 g_return_val_if_fail (string != NULL, NULL);
1141 g_return_val_if_fail (delimiter != NULL, NULL);
1144 max_tokens = G_MAXINT;
1146 s = strstr (string, delimiter);
1149 guint delimiter_len = strlen (delimiter);
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);
1162 string = s + delimiter_len;
1163 s = strstr (string, delimiter);
1165 while (--max_tokens && s);
1170 string_list = g_slist_prepend (string_list, g_strdup (string));
1173 str_array = g_new (gchar*, n);
1177 str_array[i--] = NULL;
1178 for (slist = string_list; slist; slist = slist->next)
1179 str_array[i--] = slist->data;
1181 g_slist_free (string_list);
1187 g_strfreev (gchar **str_array)
1193 for(i = 0; str_array[i] != NULL; i++)
1194 g_free(str_array[i]);
1201 g_strjoinv (const gchar *separator,
1206 g_return_val_if_fail (str_array != NULL, NULL);
1208 if(separator == NULL)
1214 guint separator_len;
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]);
1221 string = g_new (gchar, len);
1223 strcat (string, *str_array);
1224 for (i = 1; str_array[i] != NULL; i++)
1226 strcat (string, separator);
1227 strcat (string, str_array[i]);
1231 string = g_strdup ("");
1237 g_strjoin (const gchar *separator,
1243 guint separator_len;
1245 if(separator == NULL)
1248 separator_len = strlen (separator);
1250 va_start(args, separator);
1252 s = va_arg(args, gchar *);
1255 len = strlen(s) + 1;
1257 while((s = va_arg(args, gchar*)))
1259 len += separator_len + strlen(s);
1263 string = g_new (gchar, len);
1265 va_start(args, separator);
1268 s = va_arg(args, gchar*);
1271 while((s = va_arg(args, gchar*)))
1273 strcat(string, separator);
1278 string = g_strdup("");