Print this page
2964 need POSIX 2008 locale object support
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Gordon Ross <gordon.ross@nexenta.com>
Approved by: TBD
   1 /*

   2  * Copyright 2010 Nexenta Systems, Inc.  All rights reserved.
   3  * Copyright (c) 2000, 2001 Alexey Zelkin <phantom@FreeBSD.org>
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)


  26  */
  27 
  28 #include "lint.h"
  29 #include "file64.h"
  30 #include <sys/types.h>
  31 #include <sys/stat.h>
  32 #include <errno.h>
  33 #include <fcntl.h>
  34 #include <limits.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37 #include <unistd.h>
  38 #include <stdio.h>
  39 
  40 #include "ldpart.h"
  41 #include "setlocale.h"
  42 
  43 static int split_lines(char *, const char *);
  44 
  45 int
  46 __part_load_locale(const char *name, int *using_locale,
  47     char **locale_buf, const char *category_filename,
  48     int locale_buf_size_max, int locale_buf_size_min,
  49     const char **dst_localebuf)
  50 {
  51         int             saverr, fd, i, num_lines;
  52         char            *lbuf, *p;
  53         const char      *plim;
  54         char            filename[PATH_MAX];
  55         struct stat     st;
  56         size_t          namesize, bufsize;
  57 
  58         /* 'name' must be already checked. */
  59         if (strcmp(name, "C") == 0 || strcmp(name, "POSIX") == 0) {
  60                 *using_locale = 0;
  61                 return (_LDP_CACHE);
  62         }
  63 
  64         /*
  65          * If the locale name is the same as our cache, use the cache.
  66          */
  67         if (*locale_buf != NULL && strcmp(name, *locale_buf) == 0) {
  68                 *using_locale = 1;
  69                 return (_LDP_CACHE);
  70         }
  71 
  72         /*
  73          * Slurp the locale file into the cache.
  74          */
  75         namesize = strlen(name) + 1;
  76 
  77         /* 'PathLocale' must be already set & checked. */
  78 
  79         (void) snprintf(filename, sizeof (filename), "%s/%s/%s/LCL_DATA",
  80             _PathLocale, name, category_filename);
  81 
  82         if ((fd = open(filename, O_RDONLY)) < 0)
  83                 return (_LDP_ERROR);
  84         if (fstat(fd, &st) != 0)
  85                 goto bad_locale;
  86         if (st.st_size <= 0) {
  87                 errno = EINVAL;
  88                 goto bad_locale;
  89         }
  90         bufsize = namesize + st.st_size;
  91         if ((lbuf = malloc(bufsize)) == NULL) {
  92                 errno = ENOMEM;


 100         /*
 101          * Parse the locale file into localebuf.
 102          */
 103         if (plim[-1] != '\n') {
 104                 errno = EINVAL;
 105                 goto bad_lbuf;
 106         }
 107         num_lines = split_lines(p, plim);
 108         if (num_lines >= locale_buf_size_max)
 109                 num_lines = locale_buf_size_max;
 110         else if (num_lines >= locale_buf_size_min)
 111                 num_lines = locale_buf_size_min;
 112         else {
 113                 errno = EINVAL;
 114                 goto bad_lbuf;
 115         }
 116         (void) close(fd);
 117         /*
 118          * Record the successful parse in the cache.
 119          */
 120         if (*locale_buf != NULL)
 121                 free(*locale_buf);
 122         *locale_buf = lbuf;
 123         for (p = *locale_buf, i = 0; i < num_lines; i++)
 124                 dst_localebuf[i] = (p += strlen(p) + 1);
 125         for (i = num_lines; i < locale_buf_size_max; i++)
 126                 dst_localebuf[i] = NULL;
 127         *using_locale = 1;
 128 
 129         return (_LDP_LOADED);
 130 
 131 bad_lbuf:
 132         saverr = errno;
 133         free(lbuf);
 134         errno = saverr;
 135 bad_locale:
 136         saverr = errno;
 137         (void) close(fd);
 138         errno = saverr;
 139 
 140         return (_LDP_ERROR);
 141 }
 142 
 143 static int
 144 split_lines(char *p, const char *plim)
 145 {
 146         int i;
 147 
   1 /*
   2  * Copyright 2013 Garrett D'Amore <garrett@damore.org>
   3  * Copyright 2010 Nexenta Systems, Inc.  All rights reserved.
   4  * Copyright (c) 2000, 2001 Alexey Zelkin <phantom@FreeBSD.org>
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)


  27  */
  28 
  29 #include "lint.h"
  30 #include "file64.h"
  31 #include <sys/types.h>
  32 #include <sys/stat.h>
  33 #include <errno.h>
  34 #include <fcntl.h>
  35 #include <limits.h>
  36 #include <stdlib.h>
  37 #include <string.h>
  38 #include <unistd.h>
  39 #include <stdio.h>
  40 
  41 #include "ldpart.h"
  42 #include "setlocale.h"
  43 
  44 static int split_lines(char *, const char *);
  45 
  46 int
  47 __part_load_locale(const char *name,
  48     char **locale_buf, const char *category_filename,
  49     int locale_buf_size_max, int locale_buf_size_min,
  50     const char **dst_localebuf)
  51 {
  52         int             saverr, fd, i, num_lines;
  53         char            *lbuf, *p;
  54         const char      *plim;
  55         char            filename[PATH_MAX];
  56         struct stat     st;
  57         size_t          namesize, bufsize;
  58 






  59         /*








  60          * Slurp the locale file into the cache.
  61          */
  62         namesize = strlen(name) + 1;
  63 
  64         /* 'PathLocale' must be already set & checked. */
  65 
  66         (void) snprintf(filename, sizeof (filename), "%s/%s/%s/LCL_DATA",
  67             _PathLocale, name, category_filename);
  68 
  69         if ((fd = open(filename, O_RDONLY)) < 0)
  70                 return (_LDP_ERROR);
  71         if (fstat(fd, &st) != 0)
  72                 goto bad_locale;
  73         if (st.st_size <= 0) {
  74                 errno = EINVAL;
  75                 goto bad_locale;
  76         }
  77         bufsize = namesize + st.st_size;
  78         if ((lbuf = malloc(bufsize)) == NULL) {
  79                 errno = ENOMEM;


  87         /*
  88          * Parse the locale file into localebuf.
  89          */
  90         if (plim[-1] != '\n') {
  91                 errno = EINVAL;
  92                 goto bad_lbuf;
  93         }
  94         num_lines = split_lines(p, plim);
  95         if (num_lines >= locale_buf_size_max)
  96                 num_lines = locale_buf_size_max;
  97         else if (num_lines >= locale_buf_size_min)
  98                 num_lines = locale_buf_size_min;
  99         else {
 100                 errno = EINVAL;
 101                 goto bad_lbuf;
 102         }
 103         (void) close(fd);
 104         /*
 105          * Record the successful parse in the cache.
 106          */


 107         *locale_buf = lbuf;
 108         for (p = *locale_buf, i = 0; i < num_lines; i++)
 109                 dst_localebuf[i] = (p += strlen(p) + 1);
 110         for (i = num_lines; i < locale_buf_size_max; i++)
 111                 dst_localebuf[i] = NULL;

 112 
 113         return (_LDP_LOADED);
 114 
 115 bad_lbuf:
 116         saverr = errno;
 117         free(lbuf);
 118         errno = saverr;
 119 bad_locale:
 120         saverr = errno;
 121         (void) close(fd);
 122         errno = saverr;
 123 
 124         return (_LDP_ERROR);
 125 }
 126 
 127 static int
 128 split_lines(char *p, const char *plim)
 129 {
 130         int i;
 131