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.
33 #include <ctype.h> /* For tolower() */
36 /* do not include <unistd.h> in this place since it
37 * inteferes with g_strsignal() on some OSes
41 g_strdup (const gchar *str)
47 new_str = g_new (char, strlen (str) + 1);
48 strcpy (new_str, str);
57 g_memdup (gconstpointer mem,
64 new_mem = g_malloc (byte_size);
65 memcpy (new_mem, mem, byte_size);
74 g_strndup (const gchar *str,
81 new_str = g_new (gchar, n + 1);
82 strncpy (new_str, str, n);
92 g_strnfill (guint length,
95 register gchar *str, *s, *end;
97 str = g_new (gchar, length + 1);
108 g_strdup_vprintf (const gchar *format,
114 G_VA_COPY (args2, args1);
116 buffer = g_new (gchar, g_printf_string_upper_bound (format, args1));
118 vsprintf (buffer, format, args2);
125 g_strdup_printf (const gchar *format,
131 va_start (args, format);
132 buffer = g_strdup_vprintf (format, args);
139 g_strconcat (const gchar *string1, ...)
146 g_return_val_if_fail (string1 != NULL, NULL);
148 l = 1 + strlen (string1);
149 va_start (args, string1);
150 s = va_arg (args, gchar*);
154 s = va_arg (args, gchar*);
158 concat = g_new (gchar, l);
161 strcat (concat, string1);
162 va_start (args, string1);
163 s = va_arg (args, gchar*);
167 s = va_arg (args, gchar*);
175 g_strtod (const gchar *nptr,
183 g_return_val_if_fail (nptr != NULL, 0);
188 val_1 = strtod (nptr, &fail_pos_1);
190 if (fail_pos_1 && fail_pos_1[0] != 0)
194 old_locale = setlocale (LC_NUMERIC, "C");
195 val_2 = strtod (nptr, &fail_pos_2);
196 setlocale (LC_NUMERIC, old_locale);
199 if (!fail_pos_1 || fail_pos_1[0] == 0 || fail_pos_1 >= fail_pos_2)
202 *endptr = fail_pos_1;
208 *endptr = fail_pos_2;
214 g_strerror (gint errnum)
216 static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
220 return strerror (errnum);
225 case E2BIG: return "argument list too long";
228 case EACCES: return "permission denied";
231 case EADDRINUSE: return "address already in use";
234 case EADDRNOTAVAIL: return "can't assign requested address";
237 case EADV: return "advertise error";
240 case EAFNOSUPPORT: return "address family not supported by protocol family";
243 case EAGAIN: return "try again";
246 case EALIGN: return "EALIGN";
249 case EALREADY: return "operation already in progress";
252 case EBADE: return "bad exchange descriptor";
255 case EBADF: return "bad file number";
258 case EBADFD: return "file descriptor in bad state";
261 case EBADMSG: return "not a data message";
264 case EBADR: return "bad request descriptor";
267 case EBADRPC: return "RPC structure is bad";
270 case EBADRQC: return "bad request code";
273 case EBADSLT: return "invalid slot";
276 case EBFONT: return "bad font file format";
279 case EBUSY: return "mount device busy";
282 case ECHILD: return "no children";
285 case ECHRNG: return "channel number out of range";
288 case ECOMM: return "communication error on send";
291 case ECONNABORTED: return "software caused connection abort";
294 case ECONNREFUSED: return "connection refused";
297 case ECONNRESET: return "connection reset by peer";
299 #if defined(EDEADLK) && (!defined(EWOULDBLOCK) || (EDEADLK != EWOULDBLOCK))
300 case EDEADLK: return "resource deadlock avoided";
303 case EDEADLOCK: return "resource deadlock avoided";
306 case EDESTADDRREQ: return "destination address required";
309 case EDIRTY: return "mounting a dirty fs w/o force";
312 case EDOM: return "math argument out of range";
315 case EDOTDOT: return "cross mount point";
318 case EDQUOT: return "disk quota exceeded";
321 case EDUPPKG: return "duplicate package name";
324 case EEXIST: return "file already exists";
327 case EFAULT: return "bad address in system call argument";
330 case EFBIG: return "file too large";
333 case EHOSTDOWN: return "host is down";
336 case EHOSTUNREACH: return "host is unreachable";
339 case EIDRM: return "identifier removed";
342 case EINIT: return "initialization error";
345 case EINPROGRESS: return "operation now in progress";
348 case EINTR: return "interrupted system call";
351 case EINVAL: return "invalid argument";
354 case EIO: return "I/O error";
357 case EISCONN: return "socket is already connected";
360 case EISDIR: return "illegal operation on a directory";
363 case EISNAM: return "is a name file";
366 case ELBIN: return "ELBIN";
369 case EL2HLT: return "level 2 halted";
372 case EL2NSYNC: return "level 2 not synchronized";
375 case EL3HLT: return "level 3 halted";
378 case EL3RST: return "level 3 reset";
381 case ELIBACC: return "can not access a needed shared library";
384 case ELIBBAD: return "accessing a corrupted shared library";
387 case ELIBEXEC: return "can not exec a shared library directly";
390 case ELIBMAX: return "attempting to link in more shared libraries than system limit";
393 case ELIBSCN: return ".lib section in a.out corrupted";
396 case ELNRNG: return "link number out of range";
399 case ELOOP: return "too many levels of symbolic links";
402 case EMFILE: return "too many open files";
405 case EMLINK: return "too many links";
408 case EMSGSIZE: return "message too long";
411 case EMULTIHOP: return "multihop attempted";
414 case ENAMETOOLONG: return "file name too long";
417 case ENAVAIL: return "not available";
420 case ENET: return "ENET";
423 case ENETDOWN: return "network is down";
426 case ENETRESET: return "network dropped connection on reset";
429 case ENETUNREACH: return "network is unreachable";
432 case ENFILE: return "file table overflow";
435 case ENOANO: return "anode table overflow";
437 #if defined(ENOBUFS) && (!defined(ENOSR) || (ENOBUFS != ENOSR))
438 case ENOBUFS: return "no buffer space available";
441 case ENOCSI: return "no CSI structure available";
444 case ENODATA: return "no data available";
447 case ENODEV: return "no such device";
450 case ENOENT: return "no such file or directory";
453 case ENOEXEC: return "exec format error";
456 case ENOLCK: return "no locks available";
459 case ENOLINK: return "link has be severed";
462 case ENOMEM: return "not enough memory";
465 case ENOMSG: return "no message of desired type";
468 case ENONET: return "machine is not on the network";
471 case ENOPKG: return "package not installed";
474 case ENOPROTOOPT: return "bad proocol option";
477 case ENOSPC: return "no space left on device";
480 case ENOSR: return "out of stream resources";
483 case ENOSTR: return "not a stream device";
486 case ENOSYM: return "unresolved symbol name";
489 case ENOSYS: return "function not implemented";
492 case ENOTBLK: return "block device required";
495 case ENOTCONN: return "socket is not connected";
498 case ENOTDIR: return "not a directory";
501 case ENOTEMPTY: return "directory not empty";
504 case ENOTNAM: return "not a name file";
507 case ENOTSOCK: return "socket operation on non-socket";
510 case ENOTTY: return "inappropriate device for ioctl";
513 case ENOTUNIQ: return "name not unique on network";
516 case ENXIO: return "no such device or address";
519 case EOPNOTSUPP: return "operation not supported on socket";
522 case EPERM: return "not owner";
525 case EPFNOSUPPORT: return "protocol family not supported";
528 case EPIPE: return "broken pipe";
531 case EPROCLIM: return "too many processes";
534 case EPROCUNAVAIL: return "bad procedure for program";
537 case EPROGMISMATCH: return "program version wrong";
540 case EPROGUNAVAIL: return "RPC program not available";
543 case EPROTO: return "protocol error";
545 #ifdef EPROTONOSUPPORT
546 case EPROTONOSUPPORT: return "protocol not suppored";
549 case EPROTOTYPE: return "protocol wrong type for socket";
552 case ERANGE: return "math result unrepresentable";
554 #if defined(EREFUSED) && (!defined(ECONNREFUSED) || (EREFUSED != ECONNREFUSED))
555 case EREFUSED: return "EREFUSED";
558 case EREMCHG: return "remote address changed";
561 case EREMDEV: return "remote device";
564 case EREMOTE: return "pathname hit remote file system";
567 case EREMOTEIO: return "remote i/o error";
569 #ifdef EREMOTERELEASE
570 case EREMOTERELEASE: return "EREMOTERELEASE";
573 case EROFS: return "read-only file system";
576 case ERPCMISMATCH: return "RPC version is wrong";
579 case ERREMOTE: return "object is remote";
582 case ESHUTDOWN: return "can't send afer socket shutdown";
584 #ifdef ESOCKTNOSUPPORT
585 case ESOCKTNOSUPPORT: return "socket type not supported";
588 case ESPIPE: return "invalid seek";
591 case ESRCH: return "no such process";
594 case ESRMNT: return "srmount error";
597 case ESTALE: return "stale remote file handle";
600 case ESUCCESS: return "Error 0";
603 case ETIME: return "timer expired";
606 case ETIMEDOUT: return "connection timed out";
609 case ETOOMANYREFS: return "too many references: can't splice";
612 case ETXTBSY: return "text file or pseudo-device busy";
615 case EUCLEAN: return "structure needs cleaning";
618 case EUNATCH: return "protocol driver not attached";
621 case EUSERS: return "too many users";
624 case EVERSION: return "version mismatch";
626 #if defined(EWOULDBLOCK) && (!defined(EAGAIN) || (EWOULDBLOCK != EAGAIN))
627 case EWOULDBLOCK: return "operation would block";
630 case EXDEV: return "cross-domain link";
633 case EXFULL: return "message tables full";
636 #else /* NO_SYS_ERRLIST */
638 extern char *sys_errlist[];
640 if ((errnum > 0) && (errnum <= sys_nerr))
641 return sys_errlist [errnum];
642 #endif /* NO_SYS_ERRLIST */
644 msg = g_static_private_get (&msg_private);
647 msg = g_new( gchar, 64 );
648 g_static_private_set (&msg_private, msg, g_free);
651 sprintf (msg, "unknown error (%d)", errnum);
656 g_strsignal (gint signum)
658 static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
661 #ifdef HAVE_STRSIGNAL
662 extern char *strsignal (int sig);
663 return strsignal (signum);
668 case SIGHUP: return "Hangup";
671 case SIGINT: return "Interrupt";
674 case SIGQUIT: return "Quit";
677 case SIGILL: return "Illegal instruction";
680 case SIGTRAP: return "Trace/breakpoint trap";
683 case SIGABRT: return "IOT trap/Abort";
686 case SIGBUS: return "Bus error";
689 case SIGFPE: return "Floating point exception";
692 case SIGKILL: return "Killed";
695 case SIGUSR1: return "User defined signal 1";
698 case SIGSEGV: return "Segmentation fault";
701 case SIGUSR2: return "User defined signal 2";
704 case SIGPIPE: return "Broken pipe";
707 case SIGALRM: return "Alarm clock";
710 case SIGTERM: return "Terminated";
713 case SIGSTKFLT: return "Stack fault";
716 case SIGCHLD: return "Child exited";
719 case SIGCONT: return "Continued";
722 case SIGSTOP: return "Stopped (signal)";
725 case SIGTSTP: return "Stopped";
728 case SIGTTIN: return "Stopped (tty input)";
731 case SIGTTOU: return "Stopped (tty output)";
734 case SIGURG: return "Urgent condition";
737 case SIGXCPU: return "CPU time limit exceeded";
740 case SIGXFSZ: return "File size limit exceeded";
743 case SIGVTALRM: return "Virtual time alarm";
746 case SIGPROF: return "Profile signal";
749 case SIGWINCH: return "Window size changed";
752 case SIGIO: return "Possible I/O";
755 case SIGPWR: return "Power failure";
758 case SIGUNUSED: return "Unused signal";
761 #else /* NO_SYS_SIGLIST */
763 #ifndef NO_SYS_SIGLIST_DECL
764 /*(see Tue Jan 19 00:44:24 1999 in changelog)*/
765 extern char *sys_siglist[];
768 return (char*) /* this function should return const --josh */ sys_siglist [signum];
769 #endif /* NO_SYS_SIGLIST */
771 msg = g_static_private_get (&msg_private);
774 msg = g_new( gchar, 64 );
775 g_static_private_set (&msg_private, msg, g_free);
778 sprintf (msg, "unknown signal (%d)", signum);
783 g_printf_string_upper_bound (const gchar* format,
790 gboolean long_int = FALSE;
791 gboolean extra_long = FALSE;
798 gboolean done = FALSE;
800 while (*format && !done)
807 len += va_arg (args, int);
818 /* add specified format length, since it might exceed the
819 * size we assume it to have.
822 len += strtol (format, (char**) &format, 10);
825 /* ignore short int flag, since all args have at least the
826 * same size as an int
831 extra_long = TRUE; /* linux specific */
841 string_arg = va_arg (args, char *);
843 len += strlen (string_arg);
846 /* add enough padding to hold "(null)" identifier */
859 (void) va_arg (args, gint64);
861 #endif /* G_HAVE_GINT64 */
864 (void) va_arg (args, long);
866 (void) va_arg (args, int);
868 len += extra_long ? 64 : 32;
874 (void) va_arg (args, long);
882 #ifdef HAVE_LONG_DOUBLE
884 (void) va_arg (args, long double);
886 #endif /* HAVE_LONG_DOUBLE */
887 (void) va_arg (args, double);
888 len += extra_long ? 64 : 32;
892 (void) va_arg (args, int);
898 (void) va_arg (args, void*);
907 /* ignore unknow/invalid flags */
920 g_strdown (gchar *string)
924 g_return_if_fail (string != NULL);
936 g_strup (gchar *string)
940 g_return_if_fail (string != NULL);
952 g_strreverse (gchar *string)
954 g_return_if_fail (string != NULL);
958 register gchar *h, *t;
961 t = string + strlen (string) - 1;
977 g_strcasecmp (const gchar *s1,
980 #ifdef HAVE_STRCASECMP
981 return strcasecmp (s1, s2);
985 g_return_val_if_fail (s1 != NULL, 0);
986 g_return_val_if_fail (s2 != NULL, 0);
990 /* According to A. Cox, some platforms have islower's that
991 * don't work right on non-uppercase
993 c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
994 c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
1000 return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
1005 g_strncasecmp (const gchar *s1,
1009 #ifdef HAVE_STRNCASECMP
1010 return strncasecmp (s1, s2, n);
1014 g_return_val_if_fail (s1 != NULL, 0);
1015 g_return_val_if_fail (s2 != NULL, 0);
1017 while (n-- && *s1 && *s2)
1019 /* According to A. Cox, some platforms have islower's that
1020 * don't work right on non-uppercase
1022 c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
1023 c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
1030 return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
1037 g_strdelimit (gchar *string,
1038 const gchar *delimiters,
1043 g_return_val_if_fail (string != NULL, NULL);
1046 delimiters = G_STR_DELIMITERS;
1048 for (c = string; *c; c++)
1050 if (strchr (delimiters, *c))
1058 g_strescape (gchar *string)
1062 guint backslashes = 0;
1065 g_return_val_if_fail (string != NULL, NULL);
1067 while (*p != '\000')
1068 backslashes += (*p++ == '\\');
1071 return g_strdup (string);
1073 escaped = g_new (gchar, strlen (string) + backslashes + 1);
1078 while (*p != '\000')
1089 /* blame Elliot for these next five routines */
1091 g_strchug (gchar *string)
1095 g_return_val_if_fail (string != NULL, NULL);
1097 for (start = string; *start && isspace (*start); start++)
1100 strcpy (string, start);
1106 g_strchomp (gchar *string)
1110 g_return_val_if_fail (string != NULL, NULL);
1115 for (s = string + strlen (string) - 1; s >= string && isspace (*s); s--)
1122 g_strsplit (const gchar *string,
1123 const gchar *delimiter,
1126 GSList *string_list = NULL, *slist;
1127 gchar **str_array, *s;
1130 g_return_val_if_fail (string != NULL, NULL);
1131 g_return_val_if_fail (delimiter != NULL, NULL);
1134 max_tokens = G_MAXINT;
1136 s = strstr (string, delimiter);
1139 guint delimiter_len = strlen (delimiter);
1147 new_string = g_new (gchar, len + 1);
1148 strncpy (new_string, string, len);
1149 new_string[len] = 0;
1150 string_list = g_slist_prepend (string_list, new_string);
1152 string = s + delimiter_len;
1153 s = strstr (string, delimiter);
1155 while (--max_tokens && s);
1160 string_list = g_slist_prepend (string_list, g_strdup (string));
1163 str_array = g_new (gchar*, n);
1167 str_array[i--] = NULL;
1168 for (slist = string_list; slist; slist = slist->next)
1169 str_array[i--] = slist->data;
1171 g_slist_free (string_list);
1177 g_strfreev (gchar **str_array)
1183 for(i = 0; str_array[i] != NULL; i++)
1184 g_free(str_array[i]);
1191 g_strjoinv (const gchar *separator,
1196 g_return_val_if_fail (str_array != NULL, NULL);
1198 if(separator == NULL)
1204 guint separator_len;
1206 separator_len = strlen (separator);
1207 len = 1 + strlen (str_array[0]);
1208 for(i = 1; str_array[i] != NULL; i++)
1209 len += separator_len + strlen(str_array[i]);
1211 string = g_new (gchar, len);
1213 strcat (string, *str_array);
1214 for (i = 1; str_array[i] != NULL; i++)
1216 strcat (string, separator);
1217 strcat (string, str_array[i]);
1221 string = g_strdup ("");
1227 g_strjoin (const gchar *separator,
1233 guint separator_len;
1235 if(separator == NULL)
1238 separator_len = strlen (separator);
1240 va_start(args, separator);
1242 s = va_arg(args, gchar *);
1245 len = strlen(s) + 1;
1247 while((s = va_arg(args, gchar*)))
1249 len += separator_len + strlen(s);
1253 string = g_new (gchar, len);
1255 va_start(args, separator);
1258 s = va_arg(args, gchar*);
1261 while((s = va_arg(args, gchar*)))
1263 strcat(string, separator);
1268 string = g_strdup("");