scheduler/banners.c

   1 /*
   2  * "$Id: banners.c 5051 2006-02-02 16:13:16Z mike $"
   3  *
   4  *   Banner routines for the Common UNIX Printing System (CUPS).
   5  *
   6  *   Copyright 1997-2006 by Easy Software Products.
   7  *
   8  *   These coded instructions, statements, and computer programs are the
   9  *   property of Easy Software Products and are protected by Federal
  10  *   copyright law.  Distribution and use rights are outlined in the file
  11  *   "LICENSE.txt" which should have been included with this file.  If this
  12  *   file is missing or damaged please contact Easy Software Products
  13  *   at:
  14  *
  15  *       Attn: CUPS Licensing Information
  16  *       Easy Software Products
  17  *       44141 Airport View Drive, Suite 204
  18  *       Hollywood, Maryland 20636 USA
  19  *
  20  *       Voice: (301) 373-9600
  21  *       EMail: cups-info@cups.org
  22  *         WWW: http://www.cups.org
  23  *
  24  * Contents:
  25  *
  26  *   cupsdAddBanner()   - Add a banner to the array.
  27  *   cupsdFindBanner()  - Find a named banner.
  28  *   cupsdLoadBanners() - Load all available banner files...
  29  *   compare_banners()  - Compare two banners.
  30  */
  31
  32 /*
  33  * Include necessary headers...
  34  */
  35
  36 #include "cupsd.h"
  37 #include <cups/dir.h>
  38
  39
  40 /*
  41  * Local functions...
  42  */
  43
  44 static int      compare_banners(const cupsd_banner_t *b0,
  45                                 const cupsd_banner_t *b1);
  46
  47
  48 /*
  49  * 'cupsdAddBanner()' - Add a banner to the array.
  50  */
  51
  52 void
  53 cupsdAddBanner(const char *name,        /* I - Name of banner */
  54                const char *filename)    /* I - Filename for banner */
  55 {
  56   mime_type_t           *filetype;      /* Filetype */
  57   cupsd_banner_t        *temp;          /* New banner data */
  58
  59
  60  /*
  61   * See what the filetype is...
  62   */
  63
  64   if ((filetype = mimeFileType(MimeDatabase, filename, NULL, NULL)) == NULL)
  65   {
  66     cupsdLogMessage(CUPSD_LOG_WARN,
  67                     "cupsdAddBanner: Banner \"%s\" (\"%s\") is of an unknown file type - skipping!",
  68                     name, filename);
  69     return;
  70   }
  71
  72  /*
  73   * Allocate memory...
  74   */
  75
  76   temp = calloc(1, sizeof(cupsd_banner_t));
  77
  78  /*
  79   * Copy the new banner data over...
  80   */
  81
  82   strlcpy(temp->name, name, sizeof(temp->name));
  83   temp->filetype = filetype;
  84
  85   cupsArrayAdd(Banners, temp);
  86 }
  87
  88
  89 /*
  90  * 'cupsdFindBanner()' - Find a named banner.
  91  */
  92
  93 cupsd_banner_t *                        /* O - Pointer to banner or NULL */
  94 cupsdFindBanner(const char *name)       /* I - Name of banner */
  95 {
  96   cupsd_banner_t        key;            /* Search key */
  97
  98
  99   strlcpy(key.name, name, sizeof(key.name));
 100
 101   return ((cupsd_banner_t *)cupsArrayFind(Banners, &key));
 102 }
 103
 104
 105 /*
 106  * 'cupsdFreeBanners()' - Free all banners.
 107  */
 108
 109 void
 110 cupsdFreeBanners(void)
 111 {
 112   cupsd_banner_t        *temp;          /* Current banner */
 113
 114
 115   for (temp = (cupsd_banner_t *)cupsArrayFirst(Banners);
 116        temp;
 117        temp = (cupsd_banner_t *)cupsArrayNext(Banners))
 118     free(temp);
 119
 120   cupsArrayDelete(Banners);
 121   Banners = NULL;
 122 }
 123
 124
 125 /*
 126  * 'cupsdLoadBanners()' - Load all available banner files...
 127  */
 128
 129 void
 130 cupsdLoadBanners(const char *d)         /* I - Directory to search */
 131 {
 132   cups_dir_t    *dir;                   /* Directory pointer */
 133   cups_dentry_t *dent;                  /* Directory entry */
 134   char          filename[1024],         /* Name of banner */
 135                 *ext;                   /* Pointer to extension */
 136
 137
 138  /*
 139   * Free old banner info...
 140   */
 141
 142   cupsdFreeBanners();
 143
 144  /*
 145   * Try opening the banner directory...
 146   */
 147
 148   if ((dir = cupsDirOpen(d)) == NULL)
 149   {
 150     cupsdLogMessage(CUPSD_LOG_ERROR, "cupsdLoadBanners: Unable to open banner directory \"%s\": %s",
 151                d, strerror(errno));
 152     return;
 153   }
 154
 155  /*
 156   * Read entries, skipping directories and backup files.
 157   */
 158
 159   Banners = cupsArrayNew((cups_array_func_t)compare_banners, NULL);
 160
 161   while ((dent = cupsDirRead(dir)) != NULL)
 162   {
 163    /*
 164     * Check the file to make sure it isn't a directory or a backup
 165     * file of some sort...
 166     */
 167
 168     snprintf(filename, sizeof(filename), "%s/%s", d, dent->filename);
 169
 170     if (S_ISDIR(dent->fileinfo.st_mode))
 171       continue;
 172
 173     if (dent->filename[0] == '~')
 174       continue;
 175
 176     if ((ext = strrchr(dent->filename, '.')) != NULL)
 177       if (!strcmp(ext, ".bck") ||
 178           !strcmp(ext, ".bak") ||
 179           !strcmp(ext, ".sav"))
 180         continue;
 181
 182    /*
 183     * Must be a valid file; add it!
 184     */
 185
 186     cupsdAddBanner(dent->filename, filename);
 187   }
 188
 189  /*
 190   * Close the directory...
 191   */
 192
 193   cupsDirClose(dir);
 194 }
 195
 196
 197 /*
 198  * 'compare_banners()' - Compare two banners.
 199  */
 200
 201 static int                              /* O - -1 if name0 < name1, etc. */
 202 compare_banners(
 203     const cupsd_banner_t *b0,           /* I - First banner */
 204     const cupsd_banner_t *b1)           /* I - Second banner */
 205 {
 206   return (strcasecmp(b0->name, b1->name));
 207 }
 208
 209
 210 /*
 211  * End of "$Id: banners.c 5051 2006-02-02 16:13:16Z mike $".
 212  */