/* $Xorg: save.c,v 1.4 2001/02/09 02:05:35 xorgcvs Exp $ */ /****************************************************************************** Copyright 1994, 1998 The Open Group Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation. The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Except as contained in this notice, the name of The Open Group shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from The Open Group. Author: Ralph Mor, X Consortium ******************************************************************************/ /* $XFree86: xc/programs/smproxy/save.c,v 1.7 2001/01/17 23:45:04 dawes Exp $ */ #include "smproxy.h" #ifdef HAS_MKSTEMP #include #endif static ProxyFileEntry *proxyFileHead = NULL; static int write_byte ( FILE *file, unsigned char b ); static int write_short ( FILE *file, unsigned short s ); static int write_counted_string ( FILE *file, char *string ); static int read_byte ( FILE *file, unsigned char *bp ); static int read_short ( FILE *file, unsigned short *shortp ); static int read_counted_string ( FILE *file, char **stringp ); #ifndef HAS_MKSTEMP static char * unique_filename ( char *path, char *prefix ); #else static char * unique_filename ( char *path, char *prefix, int *pFd ); #endif static int write_byte (FILE *file, unsigned char b) { if (fwrite ((char *) &b, 1, 1, file) != 1) return 0; return 1; } static int write_short (FILE *file, unsigned short s) { unsigned char file_short[2]; file_short[0] = (s & (unsigned)0xff00) >> 8; file_short[1] = s & 0xff; if (fwrite ((char *) file_short, (int) sizeof (file_short), 1, file) != 1) return 0; return 1; } static int write_counted_string(FILE *file, char *string) { if (string) { unsigned char count = strlen (string); if (write_byte (file, count) == 0) return 0; if (fwrite (string, (int) sizeof (char), (int) count, file) != count) return 0; } else { if (write_byte (file, 0) == 0) return 0; } return 1; } static int read_byte(FILE *file, unsigned char *bp) { if (fread ((char *) bp, 1, 1, file) != 1) return 0; return 1; } static int read_short(FILE *file, unsigned short *shortp) { unsigned char file_short[2]; if (fread ((char *) file_short, (int) sizeof (file_short), 1, file) != 1) return 0; *shortp = file_short[0] * 256 + file_short[1]; return 1; } static int read_counted_string(FILE *file, char **stringp) { unsigned char len; char *data; if (read_byte (file, &len) == 0) return 0; if (len == 0) { data = NULL; } else { data = (char *) malloc ((unsigned) len + 1); if (!data) return 0; if (fread (data, (int) sizeof (char), (int) len, file) != len) { free (data); return 0; } data[len] = '\0'; } *stringp = data; return 1; } /* * An entry in the .smproxy file looks like this: * * FIELD BYTES * ----- ---- * client ID len 1 * client ID LIST of bytes * WM_CLASS "res name" length 1 * WM_CLASS "res name" LIST of bytes * WM_CLASS "res class" length 1 * WM_CLASS "res class" LIST of bytes * WM_NAME length 1 * WM_NAME LIST of bytes * WM_COMMAND arg count 1 * For each arg in WM_COMMAND * arg length 1 * arg LIST of bytes */ int WriteProxyFileEntry(FILE *proxyFile, WinInfo *theWindow) { int i; if (!write_counted_string (proxyFile, theWindow->client_id)) return 0; if (!write_counted_string (proxyFile, theWindow->class.res_name)) return 0; if (!write_counted_string (proxyFile, theWindow->class.res_class)) return 0; if (!write_counted_string (proxyFile, theWindow->wm_name)) return 0; if (!theWindow->wm_command || theWindow->wm_command_count == 0) { if (!write_byte (proxyFile, 0)) return 0; } else { if (!write_byte (proxyFile, (char) theWindow->wm_command_count)) return 0; for (i = 0; i < theWindow->wm_command_count; i++) if (!write_counted_string (proxyFile, theWindow->wm_command[i])) return 0; } return 1; } int ReadProxyFileEntry(FILE *proxyFile, ProxyFileEntry **pentry) { ProxyFileEntry *entry; unsigned char byte; int i; *pentry = entry = (ProxyFileEntry *) malloc ( sizeof (ProxyFileEntry)); if (!*pentry) return 0; entry->tag = 0; entry->client_id = NULL; entry->class.res_name = NULL; entry->class.res_class = NULL; entry->wm_name = NULL; entry->wm_command = NULL; entry->wm_command_count = 0; if (!read_counted_string (proxyFile, &entry->client_id)) goto give_up; if (!read_counted_string (proxyFile, &entry->class.res_name)) goto give_up; if (!read_counted_string (proxyFile, &entry->class.res_class)) goto give_up; if (!read_counted_string (proxyFile, &entry->wm_name)) goto give_up; if (!read_byte (proxyFile, &byte)) goto give_up; entry->wm_command_count = byte; if (entry->wm_command_count == 0) entry->wm_command = NULL; else { entry->wm_command = (char **) malloc (entry->wm_command_count * sizeof (char *)); if (!entry->wm_command) goto give_up; for (i = 0; i < entry->wm_command_count; i++) if (!read_counted_string (proxyFile, &entry->wm_command[i])) goto give_up; } return 1; give_up: if (entry->client_id) free (entry->client_id); if (entry->class.res_name) free (entry->class.res_name); if (entry->class.res_class) free (entry->class.res_class); if (entry->wm_name) free (entry->wm_name); if (entry->wm_command_count) { for (i = 0; i < entry->wm_command_count; i++) if (entry->wm_command[i]) free (entry->wm_command[i]); } if (entry->wm_command) free ((char *) entry->wm_command); free ((char *) entry); *pentry = NULL; return 0; } void ReadProxyFile(char *filename) { FILE *proxyFile; ProxyFileEntry *entry; int done = 0; unsigned short version; proxyFile = fopen (filename, "rb"); if (!proxyFile) return; if (!read_short (proxyFile, &version) || version > SAVEFILE_VERSION) { done = 1; } while (!done) { if (ReadProxyFileEntry (proxyFile, &entry)) { entry->next = proxyFileHead; proxyFileHead = entry; } else done = 1; } fclose (proxyFile); } #ifndef HAS_MKSTEMP static char * unique_filename(char *path, char *prefix) #else static char * unique_filename(char *path, char *prefix, int *pFd) #endif { #ifndef HAS_MKSTEMP #ifndef X_NOT_POSIX return ((char *) tempnam (path, prefix)); #else char tempFile[PATH_MAX]; char *tmp; sprintf (tempFile, "%s/%sXXXXXX", path, prefix); tmp = (char *) mktemp (tempFile); if (tmp) { char *ptr = (char *) malloc (strlen (tmp) + 1); strcpy (ptr, tmp); return (ptr); } else return (NULL); #endif #else char tempFile[PATH_MAX]; char *ptr; sprintf (tempFile, "%s/%sXXXXXX", path, prefix); ptr = (char *)malloc(strlen(tempFile) + 1); if (ptr != NULL) { strcpy(ptr, tempFile); *pFd = mkstemp(ptr); } return ptr; #endif } char * WriteProxyFile(void) { FILE *proxyFile = NULL; char *filename = NULL; #ifdef HAS_MKSTEMP int fd; #endif char *path; WinInfo *winptr; Bool success = False; path = getenv ("SM_SAVE_DIR"); if (!path) { path = getenv ("HOME"); if (!path) path = "."; } #ifndef HAS_MKSTEMP if ((filename = unique_filename (path, ".prx")) == NULL) goto bad; if (!(proxyFile = fopen (filename, "wb"))) goto bad; #else if ((filename = unique_filename (path, ".prx", &fd)) == NULL) goto bad; if (!(proxyFile = fdopen(fd, "wb"))) goto bad; #endif if (!write_short (proxyFile, SAVEFILE_VERSION)) goto bad; success = True; winptr = win_head; while (winptr && success) { if (winptr->client_id) if (!WriteProxyFileEntry (proxyFile, winptr)) { success = False; break; } winptr = winptr->next; } bad: if (proxyFile) fclose (proxyFile); if (success) return (filename); else { if (filename) free (filename); return (NULL); } } char * LookupClientID(WinInfo *theWindow) { ProxyFileEntry *ptr; int found = 0; ptr = proxyFileHead; while (ptr && !found) { if (!ptr->tag && strcmp (theWindow->class.res_name, ptr->class.res_name) == 0 && strcmp (theWindow->class.res_class, ptr->class.res_class) == 0 && strcmp (theWindow->wm_name, ptr->wm_name) == 0) { int i; if (theWindow->wm_command_count == ptr->wm_command_count) { for (i = 0; i < theWindow->wm_command_count; i++) if (strcmp (theWindow->wm_command[i], ptr->wm_command[i]) != 0) break; if (i == theWindow->wm_command_count) found = 1; } } if (!found) ptr = ptr->next; } if (found) { ptr->tag = 1; return (ptr->client_id); } else return NULL; }