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Diffstat (limited to 'libical/src/libicalss/icalfileset.c')
| -rw-r--r-- | libical/src/libicalss/icalfileset.c | 639 |
1 files changed, 0 insertions, 639 deletions
diff --git a/libical/src/libicalss/icalfileset.c b/libical/src/libicalss/icalfileset.c deleted file mode 100644 index 2ef38ff876..0000000000 --- a/libical/src/libicalss/icalfileset.c +++ /dev/null @@ -1,639 +0,0 @@ -/* -*- Mode: C -*- - ====================================================================== - FILE: icalfileset.c - CREATOR: eric 23 December 1999 - - $Id$ - $Locker$ - - (C) COPYRIGHT 2000, Eric Busboom, http://www.softwarestudio.org - - This program is free software; you can redistribute it and/or modify - it under the terms of either: - - The LGPL as published by the Free Software Foundation, version - 2.1, available at: http://www.fsf.org/copyleft/lesser.html - - Or: - - The Mozilla Public License Version 1.0. You may obtain a copy of - the License at http://www.mozilla.org/MPL/ - - The Original Code is eric. The Initial Developer of the Original - Code is Eric Busboom - - - ======================================================================*/ - - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "icalfileset.h" -#include "icalgauge.h" -#include <errno.h> -#include <limits.h> /* For PATH_MAX */ -#include <sys/stat.h> /* for stat */ -#include <unistd.h> /* for stat, getpid */ -#include <stdlib.h> -#include <string.h> -#include <fcntl.h> /* for fcntl */ -#include <unistd.h> /* for fcntl */ -#include "icalfilesetimpl.h" - -extern int errno; - -int icalfileset_lock(icalfileset *cluster); -int icalfileset_unlock(icalfileset *cluster); -icalerrorenum icalfileset_read_file(icalfileset* cluster, mode_t mode); -int icalfileset_filesize(icalfileset* cluster); - -icalerrorenum icalfileset_create_cluster(const char *path); - -icalfileset* icalfileset_new_impl() -{ - struct icalfileset_impl* impl; - - if ( ( impl = (struct icalfileset_impl*) - malloc(sizeof(struct icalfileset_impl))) == 0) { - icalerror_set_errno(ICAL_NEWFAILED_ERROR); - errno = ENOMEM; - return 0; - } - - memset(impl,0,sizeof(struct icalfileset_impl)); - - strcpy(impl->id,ICALFILESET_ID); - - return impl; -} - - -icalfileset* icalfileset_new(const char* path) -{ - return icalfileset_new_open(path, O_RDWR|O_CREAT, 0664); -} - -icalfileset* icalfileset_new_open(const char* path, int flags, mode_t mode) -{ - struct icalfileset_impl *impl = icalfileset_new_impl(); - struct icaltimetype tt; - off_t cluster_file_size; - - memset(&tt,0,sizeof(struct icaltimetype)); - - icalerror_clear_errno(); - icalerror_check_arg_rz( (path!=0), "path"); - - if (impl == 0){ - return 0; - } - - impl->path = strdup(path); - - cluster_file_size = icalfileset_filesize(impl); - - if(cluster_file_size < 0){ - icalfileset_free(impl); - return 0; - } - - impl->fd = open(impl->path,flags, mode); - - if (impl->fd < 0){ - icalerror_set_errno(ICAL_FILE_ERROR); - icalfileset_free(impl); - return 0; - } - - icalfileset_lock(impl); - - if(cluster_file_size > 0 ){ - icalerrorenum error; - if((error = icalfileset_read_file(impl,mode))!= ICAL_NO_ERROR){ - icalfileset_free(impl); - return 0; - } - } - - if(impl->cluster == 0){ - impl->cluster = icalcomponent_new(ICAL_XROOT_COMPONENT); - } - - return impl; -} - -char* icalfileset_read_from_file(char *s, size_t size, void *d) -{ - - char* p = s; - int fd = (int)d; - - /* Simulate fgets -- read single characters and stop at '\n' */ - - for(p=s; p<s+size-1;p++){ - - if(read(fd,p,1) != 1 || *p=='\n'){ - p++; - break; - } - } - - *p = '\0'; - - if(*s == 0){ - return 0; - } else { - return s; - } - -} - - -icalerrorenum icalfileset_read_file(icalfileset* cluster,mode_t mode) -{ - - icalparser *parser; - int fd; - - struct icalfileset_impl *impl = (struct icalfileset_impl*)cluster; - - parser = icalparser_new(); - icalparser_set_gen_data(parser,(void*)impl->fd); - impl->cluster = icalparser_parse(parser,icalfileset_read_from_file); - icalparser_free(parser); - - if (impl->cluster == 0 || icalerrno != ICAL_NO_ERROR){ - icalerror_set_errno(ICAL_PARSE_ERROR); - return ICAL_PARSE_ERROR; - } - - if (icalcomponent_isa(impl->cluster) != ICAL_XROOT_COMPONENT){ - /* The parser got a single component, so it did not put it in - an XROOT. */ - icalcomponent *cl = impl->cluster; - impl->cluster = icalcomponent_new(ICAL_XROOT_COMPONENT); - icalcomponent_add_component(impl->cluster,cl); - } - - return ICAL_NO_ERROR; - -} - -int icalfileset_filesize(icalfileset* cluster) -{ - struct icalfileset_impl *impl = (struct icalfileset_impl*)cluster; - int cluster_file_size; - struct stat sbuf; - - if (stat(impl->path,&sbuf) != 0){ - - /* A file by the given name does not exist, or there was - another error */ - cluster_file_size = 0; - if (errno == ENOENT) { - /* It was because the file does not exist */ - return 0; - } else { - /* It was because of another error */ - icalerror_set_errno(ICAL_FILE_ERROR); - return -1; - } - } else { - /* A file by the given name exists, but is it a regular file? */ - - if (!S_ISREG(sbuf.st_mode)){ - /* Nope, not a regular file */ - icalerror_set_errno(ICAL_FILE_ERROR); - return -1; - } else { - /* Lets assume that it is a file of the right type */ - return sbuf.st_size; - } - } - - /*return -1; not reached*/ -} - -void icalfileset_free(icalfileset* cluster) -{ - struct icalfileset_impl *impl = (struct icalfileset_impl*)cluster; - - icalerror_check_arg_rv((cluster!=0),"cluster"); - - if (impl->cluster != 0){ - icalfileset_commit(cluster); - icalcomponent_free(impl->cluster); - impl->cluster=0; - } - - if(impl->fd > 0){ - icalfileset_unlock(impl); - close(impl->fd); - impl->fd = -1; - } - - if(impl->path != 0){ - free(impl->path); - impl->path = 0; - } - - free(impl); -} - -const char* icalfileset_path(icalfileset* cluster) -{ - struct icalfileset_impl *impl = (struct icalfileset_impl*)cluster; - icalerror_check_arg_rz((cluster!=0),"cluster"); - - return impl->path; -} - - -int icalfileset_lock(icalfileset *cluster) -{ - struct icalfileset_impl *impl = (struct icalfileset_impl*)cluster; - struct flock lock; - int rtrn; - - icalerror_check_arg_rz((impl->fd>0),"impl->fd"); - errno = 0; - lock.l_type = F_WRLCK; /* F_RDLCK, F_WRLCK, F_UNLCK */ - lock.l_start = 0; /* byte offset relative to l_whence */ - lock.l_whence = SEEK_SET; /* SEEK_SET, SEEK_CUR, SEEK_END */ - lock.l_len = 0; /* #bytes (0 means to EOF) */ - - rtrn = fcntl(impl->fd, F_SETLKW, &lock); - - return rtrn; -} - -int icalfileset_unlock(icalfileset *cluster) -{ - struct icalfileset_impl *impl = (struct icalfileset_impl*)cluster; - struct flock lock; - icalerror_check_arg_rz((impl->fd>0),"impl->fd"); - - lock.l_type = F_WRLCK; /* F_RDLCK, F_WRLCK, F_UNLCK */ - lock.l_start = 0; /* byte offset relative to l_whence */ - lock.l_whence = SEEK_SET; /* SEEK_SET, SEEK_CUR, SEEK_END */ - lock.l_len = 0; /* #bytes (0 means to EOF) */ - - return (fcntl(impl->fd, F_UNLCK, &lock)); - -} - -#ifdef ICAL_SAFESAVES -int icalfileset_safe_saves=1; -#else -int icalfileset_safe_saves=0; -#endif - -icalerrorenum icalfileset_commit(icalfileset* cluster) -{ - char tmp[PATH_MAX]; - char *str; - icalcomponent *c; - off_t write_size=0; - - struct icalfileset_impl *impl = (struct icalfileset_impl*)cluster; - - icalerror_check_arg_re((impl!=0),"cluster",ICAL_BADARG_ERROR); - - icalerror_check_arg_re((impl->fd>0),"impl->fd is invalid", - ICAL_INTERNAL_ERROR) ; - - if (impl->changed == 0 ){ - return ICAL_NO_ERROR; - } - - if(icalfileset_safe_saves == 1){ - snprintf(tmp,PATH_MAX,"cp %s %s.bak",impl->path,impl->path); - - if(system(tmp) < 0){ - icalerror_set_errno(ICAL_FILE_ERROR); - return ICAL_FILE_ERROR; - } - } - - if(lseek(impl->fd,SEEK_SET,0) < 0){ - icalerror_set_errno(ICAL_FILE_ERROR); - return ICAL_FILE_ERROR; - } - - for(c = icalcomponent_get_first_component(impl->cluster,ICAL_ANY_COMPONENT); - c != 0; - c = icalcomponent_get_next_component(impl->cluster,ICAL_ANY_COMPONENT)){ - int sz; - - str = icalcomponent_as_ical_string(c); - - sz=write(impl->fd,str,strlen(str)); - - if ( sz != strlen(str)){ - perror("write"); - icalerror_set_errno(ICAL_FILE_ERROR); - return ICAL_FILE_ERROR; - } - - write_size += sz; - } - - impl->changed = 0; - - if(ftruncate(impl->fd,write_size) < 0){ - return ICAL_FILE_ERROR; - } - - return ICAL_NO_ERROR; - -} - -void icalfileset_mark(icalfileset* cluster){ - - struct icalfileset_impl *impl = (struct icalfileset_impl*)cluster; - - icalerror_check_arg_rv((impl!=0),"cluster"); - - impl->changed = 1; - -} - -icalcomponent* icalfileset_get_component(icalfileset* cluster){ - struct icalfileset_impl *impl = (struct icalfileset_impl*)cluster; - - icalerror_check_arg_re((impl!=0),"cluster",ICAL_BADARG_ERROR); - - return impl->cluster; -} - - -/* manipulate the components in the cluster */ - -icalerrorenum icalfileset_add_component(icalfileset *cluster, - icalcomponent* child) -{ - struct icalfileset_impl* impl = (struct icalfileset_impl*)cluster; - - icalerror_check_arg_rv((cluster!=0),"cluster"); - icalerror_check_arg_rv((child!=0),"child"); - - icalcomponent_add_component(impl->cluster,child); - - icalfileset_mark(cluster); - - return ICAL_NO_ERROR; - -} - -icalerrorenum icalfileset_remove_component(icalfileset *cluster, - icalcomponent* child) -{ - struct icalfileset_impl* impl = (struct icalfileset_impl*)cluster; - - icalerror_check_arg_rv((cluster!=0),"cluster"); - icalerror_check_arg_rv((child!=0),"child"); - - icalcomponent_remove_component(impl->cluster,child); - - icalfileset_mark(cluster); - - return ICAL_NO_ERROR; -} - -int icalfileset_count_components(icalfileset *cluster, - icalcomponent_kind kind) -{ - struct icalfileset_impl* impl = (struct icalfileset_impl*)cluster; - - if(cluster == 0){ - icalerror_set_errno(ICAL_BADARG_ERROR); - return -1; - } - - return icalcomponent_count_components(impl->cluster,kind); -} - -icalerrorenum icalfileset_select(icalfileset* set, icalgauge* gauge) -{ - struct icalfileset_impl* impl = (struct icalfileset_impl*)set; - - icalerror_check_arg_re(gauge!=0,"guage",ICAL_BADARG_ERROR); - - impl->gauge = gauge; - - return ICAL_NO_ERROR; -} - -void icalfileset_clear(icalfileset* gauge) -{ - struct icalfileset_impl* impl = (struct icalfileset_impl*)gauge; - - impl->gauge = 0; - -} - -icalcomponent* icalfileset_fetch(icalfileset* store,const char* uid) -{ - icalcompiter i; - struct icalfileset_impl* impl = (struct icalfileset_impl*)store; - - for(i = icalcomponent_begin_component(impl->cluster,ICAL_ANY_COMPONENT); - icalcompiter_deref(&i)!= 0; icalcompiter_next(&i)){ - - icalcomponent *this = icalcompiter_deref(&i); - icalcomponent *inner = icalcomponent_get_first_real_component(this); - icalcomponent *p; - const char *this_uid; - - if(inner != 0){ - p = icalcomponent_get_first_property(inner,ICAL_UID_PROPERTY); - this_uid = icalproperty_get_uid(p); - - if(this_uid==0){ - icalerror_warn("icalfileset_fetch found a component with no UID"); - continue; - } - - if (strcmp(uid,this_uid)==0){ - return this; - } - } - } - - return 0; -} - -int icalfileset_has_uid(icalfileset* store,const char* uid) -{ - assert(0); /* HACK, not implemented */ - return 0; -} - -/******* support routines for icalfileset_fetch_match *********/ - -struct icalfileset_id{ - char* uid; - char* recurrence_id; - int sequence; -}; - -void icalfileset_id_free(struct icalfileset_id *id) -{ - if(id->recurrence_id != 0){ - free(id->recurrence_id); - } - - if(id->uid != 0){ - free(id->uid); - } - -} - -struct icalfileset_id icalfileset_get_id(icalcomponent* comp) -{ - - icalcomponent *inner; - struct icalfileset_id id; - icalproperty *p; - - inner = icalcomponent_get_first_real_component(comp); - - p = icalcomponent_get_first_property(inner, ICAL_UID_PROPERTY); - - assert(p!= 0); - - id.uid = strdup(icalproperty_get_uid(p)); - - p = icalcomponent_get_first_property(inner, ICAL_SEQUENCE_PROPERTY); - - if(p == 0) { - id.sequence = 0; - } else { - id.sequence = icalproperty_get_sequence(p); - } - - p = icalcomponent_get_first_property(inner, ICAL_RECURRENCEID_PROPERTY); - - if (p == 0){ - id.recurrence_id = 0; - } else { - icalvalue *v; - v = icalproperty_get_value(p); - id.recurrence_id = strdup(icalvalue_as_ical_string(v)); - - assert(id.recurrence_id != 0); - } - - return id; -} - -/* Find the component that is related to the given - component. Currently, it just matches based on UID and - RECURRENCE-ID */ -icalcomponent* icalfileset_fetch_match(icalfileset* set, icalcomponent *comp) -{ - struct icalfileset_impl* impl = (struct icalfileset_impl*)set; - icalcompiter i; - - struct icalfileset_id comp_id, match_id; - - comp_id = icalfileset_get_id(comp); - - for(i = icalcomponent_begin_component(impl->cluster,ICAL_ANY_COMPONENT); - icalcompiter_deref(&i)!= 0; icalcompiter_next(&i)){ - - icalcomponent *match = icalcompiter_deref(&i); - - match_id = icalfileset_get_id(match); - - if(strcmp(comp_id.uid, match_id.uid) == 0 && - ( comp_id.recurrence_id ==0 || - strcmp(comp_id.recurrence_id, match_id.recurrence_id) ==0 )){ - - /* HACK. What to do with SEQUENCE? */ - - icalfileset_id_free(&match_id); - icalfileset_id_free(&comp_id); - return match; - - } - - icalfileset_id_free(&match_id); - } - - icalfileset_id_free(&comp_id); - return 0; - -} - - -icalerrorenum icalfileset_modify(icalfileset* store, icalcomponent *old, - icalcomponent *new) -{ - assert(0); /* HACK, not implemented */ - return ICAL_NO_ERROR; -} - - -/* Iterate through components */ -icalcomponent* icalfileset_get_current_component (icalfileset* cluster) -{ - struct icalfileset_impl* impl = (struct icalfileset_impl*)cluster; - - icalerror_check_arg_rz((cluster!=0),"cluster"); - - return icalcomponent_get_current_component(impl->cluster); -} - - -icalcomponent* icalfileset_get_first_component(icalfileset* cluster) -{ - struct icalfileset_impl* impl = (struct icalfileset_impl*)cluster; - icalcomponent *c=0; - - icalerror_check_arg_rz((cluster!=0),"cluster"); - - do { - if (c == 0){ - c = icalcomponent_get_first_component(impl->cluster, - ICAL_ANY_COMPONENT); - } else { - c = icalcomponent_get_next_component(impl->cluster, - ICAL_ANY_COMPONENT); - } - - if(c != 0 && (impl->gauge == 0 || - icalgauge_compare(impl->gauge,c) == 1)){ - return c; - } - - } while(c != 0); - - - return 0; -} - -icalcomponent* icalfileset_get_next_component(icalfileset* cluster) -{ - struct icalfileset_impl* impl = (struct icalfileset_impl*)cluster; - icalcomponent *c; - - icalerror_check_arg_rz((cluster!=0),"cluster"); - - do { - c = icalcomponent_get_next_component(impl->cluster, - ICAL_ANY_COMPONENT); - - if(c != 0 && (impl->gauge == 0 || - icalgauge_compare(impl->gauge,c) == 1)){ - return c; - } - - } while(c != 0); - - - return 0; -} - |