-/** miscellaneous functions
-
- Copyright (C) 1995 by Ke Jin <kejin@empress.com>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-**/
+/*
+ * misc.c
+ *
+ * $Id$
+ *
+ * Miscellaneous functions
+ *
+ * The iODBC driver manager.
+ *
+ * Copyright (C) 1995 by Ke Jin <kejin@empress.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
-#include <../iodbc/iodbc.h>
+#include "config.h"
-#include <../iodbc/isql.h>
-#include <../iodbc/isqlext.h>
+#include "isql.h"
+#include "isqlext.h"
#include <stdio.h>
+#include <unistd.h>
-static int
-upper_strneq(
- char* s1,
- char* s2,
- int n )
+static int
+upper_strneq (
+ char *s1,
+ char *s2,
+ int n)
{
- int i;
- char c1, c2;
+ int i;
+ char c1, c2;
- for(i=1;i<n;i++)
- {
- c1 = s1[i];
- c2 = s2[i];
+ for (i = 1; i < n; i++)
+ {
+ c1 = s1[i];
+ c2 = s2[i];
- if( c1 >= 'a' && c1 <= 'z' )
- {
- c1 += ('A' - 'a');
- }
- else if( c1 == '\n' )
- {
- c1 = '\0';
- }
+ if (c1 >= 'a' && c1 <= 'z')
+ {
+ c1 += ('A' - 'a');
+ }
+ else if (c1 == '\n')
+ {
+ c1 = '\0';
+ }
- if( c2 >= 'a' && c2 <= 'z' )
- {
- c2 += ('A' - 'a');
- }
- else if( c2 == '\n' )
- {
- c2 = '\0';
- }
+ if (c2 >= 'a' && c2 <= 'z')
+ {
+ c2 += ('A' - 'a');
+ }
+ else if (c2 == '\n')
+ {
+ c2 = '\0';
+ }
- if( (c1 - c2) || !c1 || !c2 )
- {
- break;
- }
+ if ((c1 - c2) || !c1 || !c2)
+ {
+ break;
}
+ }
- return (int)!(c1 - c2);
+ return (int) !(c1 - c2);
}
-static char* /* return new position in input str */
-readtoken(
- char* istr, /* old position in input buf */
- char* obuf ) /* token string ( if "\0", then finished ) */
+static char * /* return new position in input str */
+readtoken (
+ char *istr, /* old position in input buf */
+ char *obuf) /* token string ( if "\0", then finished ) */
{
- for(; *istr && *istr != '\n' ; istr ++ )
- {
- char c, nx;
+ char *start = obuf;
- c = *(istr);
-
- if( c == ' ' || c == '\t' )
- {
- continue;
- }
+ /* Skip leading white space */
+ while (*istr == ' ' || *istr == '\t')
+ istr++;
- nx = *(istr + 1);
+ for (; *istr && *istr != '\n'; istr++)
+ {
+ char c, nx;
- *obuf = c;
- obuf ++;
+ c = *(istr);
+ nx = *(istr + 1);
- if( c == ';' || c == '=' )
- {
- istr ++;
- break;
- }
+ if (c == ';')
+ {
+ for (; *istr && *istr != '\n'; istr++);
+ break;
+ }
+ *obuf = c;
+ obuf++;
- if( nx == ' ' || nx == '\t' || nx == ';' || nx == '=' )
- {
- istr ++;
- break;
- }
+ if (nx == ';' || nx == '=' || c == '=')
+ {
+ istr++;
+ break;
}
+ }
+ *obuf = '\0';
- *obuf = '\0';
+ /* Trim end of token */
+ for (; obuf > start && (*(obuf - 1) == ' ' || *(obuf - 1) == '\t');)
+ *--obuf = '\0';
- return istr;
+ return istr;
}
#if !defined(WINDOWS) && !defined(WIN32) && !defined(OS2)
# define UNIX_PWD
#endif
-static char*
-getinitfile(char* buf, int size)
+char *
+_iodbcdm_getinifile (char *buf, int size)
{
- int i, j;
- char* ptr;
+ int i, j;
+ char *ptr;
- j = STRLEN("/odbc.ini") + 1;
+ j = STRLEN ("/odbc.ini") + 1;
- if( size < j )
- {
- return NULL;
- }
+ if (size < j)
+ {
+ return NULL;
+ }
#if !defined(UNIX_PWD)
-
- i = GetWindowsDirectory((LPSTR)buf, size );
- if( i == 0 || i > size - j )
- {
- return NULL;
- }
+ i = GetWindowsDirectory ((LPSTR) buf, size);
- sprintf( buf + i, "/odbc.ini");
+ if (i == 0 || i > size - j)
+ {
+ return NULL;
+ }
- return buf;
-#else
- ptr = (char*)getpwuid(getuid());
+ sprintf (buf + i, "/odbc.ini");
- if( ptr == NULL )
+ return buf;
+#else
+ if ((ptr = getenv ("ODBCINI")) != NULL)
+ {
+ strcpy (buf, ptr);
+ return buf;
+ }
+
+ if ((ptr = getenv ("IODBCINI")) != NULL)
+ {
+ strcpy (buf, ptr);
+ return buf;
+ }
+
+ if ((ptr = getenv ("HOME")) == NULL)
+ {
+ ptr = (char *) getpwuid (getuid ());
+
+ if (ptr == NULL)
{
- return NULL;
+ return NULL;
}
- ptr = ((struct passwd*)ptr)->pw_dir;
+ ptr = ((struct passwd *) ptr)->pw_dir;
+ }
- if( ptr == NULL || *ptr == '\0' )
- {
- ptr = "/home";
- }
+ if (ptr == NULL || *ptr == '\0')
+ {
+ ptr = "/home";
+ }
- if( size < STRLEN(ptr) + j )
- {
- return NULL;
- }
+ if (size < STRLEN (ptr) + j)
+ {
+ return NULL;
+ }
- sprintf( buf, "%s%s", ptr, "/.odbc.ini");
- /* i.e. searching ~/.odbc.ini */
+ sprintf (buf, "%s%s", ptr, "/.odbc.ini");
+ /* i.e. searching ~/.odbc.ini */
#endif
- return buf;
+ return buf;
}
-char* _iodbcdm_getkeyvalbydsn(
- char* dsn,
- int dsnlen,
- char* keywd,
- char* value,
- int size )
-/* read odbc init file to resolve the value of specified
- * key from named or defaulted dsn section
+
+/*
+ * read odbc init file to resolve the value of specified
+ * key from named or defaulted dsn section
*/
+char *
+_iodbcdm_getkeyvalbydsn (
+ char *dsn,
+ int dsnlen,
+ char *keywd,
+ char *value,
+ int size)
{
- char buf[1024];
- char dsntk[SQL_MAX_DSN_LENGTH + 3] = { '[', '\0' };
- char token[1024]; /* large enough */
- FILE* file;
- char pathbuf[1024];
- char* path;
-
-#define DSN_NOMATCH 0
+ char buf[1024];
+ char dsntk[SQL_MAX_DSN_LENGTH + 3] = {'[', '\0'};
+ char token[1024]; /* large enough */
+ FILE *file;
+ char pathbuf[1024];
+ char *path;
+
+#define DSN_NOMATCH 0
#define DSN_NAMED 1
#define DSN_DEFAULT 2
- int dsnid = DSN_NOMATCH;
- int defaultdsn = DSN_NOMATCH;
+ int dsnid = DSN_NOMATCH;
+ int defaultdsn = DSN_NOMATCH;
- if( dsn == NULL || *dsn == 0 )
- {
- dsn = "default";
- dsnlen = STRLEN(dsn);
- }
+ if (dsn == NULL || *dsn == 0)
+ {
+ dsn = "default";
+ dsnlen = STRLEN (dsn);
+ }
- if( dsnlen == SQL_NTS )
- {
- dsnlen = STRLEN(dsn);
- }
+ if (dsnlen == SQL_NTS)
+ {
+ dsnlen = STRLEN (dsn);
+ }
- if( dsnlen <= 0 || keywd == NULL || buf == 0 || size <= 0 )
- {
- return NULL;
- }
+ if (dsnlen <= 0 || keywd == NULL || buf == 0 || size <= 0)
+ {
+ return NULL;
+ }
- if( dsnlen > sizeof(dsntk) - 2 )
- {
- return NULL;
- }
+ if (dsnlen > sizeof (dsntk) - 2)
+ {
+ return NULL;
+ }
- value[0] = '\0';
+ value[0] = '\0';
- STRNCAT( dsntk, dsn, dsnlen );
- STRCAT( dsntk, "]" );
+ STRNCAT (dsntk, dsn, dsnlen);
+ STRCAT (dsntk, "]");
- dsnlen = dsnlen + 2;
+ dsnlen = dsnlen + 2;
- path = getinitfile(pathbuf, sizeof(pathbuf));
+ path = _iodbcdm_getinifile (pathbuf, sizeof (pathbuf));
- if( path == NULL )
- {
- return NULL;
- }
+ if (path == NULL)
+ {
+ return NULL;
+ }
- file = (FILE*)fopen(path, "r");
+ file = (FILE *) fopen (path, "r");
- if( file == NULL )
- {
- return NULL;
- }
+ if (file == NULL)
+ {
+ return NULL;
+ }
- for(;;)
- {
- char* str;
+ for (;;)
+ {
+ char *str;
- str = fgets(buf, sizeof(buf), file);
+ str = fgets (buf, sizeof (buf), file);
- if( str == NULL )
- {
- break;
- }
+ if (str == NULL)
+ {
+ break;
+ }
- if( *str == '[' )
+ if (*str == '[')
+ {
+ if (upper_strneq (str, "[default]", STRLEN ("[default]")))
+ {
+ /* we only read first dsn default dsn
+ * section (as well as named dsn).
+ */
+ if (defaultdsn == DSN_NOMATCH)
{
- if( upper_strneq(str, "[default]", STRLEN("[default]")) )
- {
- /* we only read first dsn default dsn
- * section (as well as named dsn).
- */
- if( defaultdsn == DSN_NOMATCH )
- {
- dsnid = DSN_DEFAULT;
- defaultdsn = DSN_DEFAULT;
- }
- else
- {
- dsnid = DSN_NOMATCH;
- }
-
- continue;
- }
- else if( upper_strneq( str, dsntk, dsnlen ) )
- {
- dsnid = DSN_NAMED;
- }
- else
- {
- dsnid = DSN_NOMATCH;
- }
-
- continue;
+ dsnid = DSN_DEFAULT;
+ defaultdsn = DSN_DEFAULT;
}
- else if( dsnid == DSN_NOMATCH )
+ else
{
- continue;
+ dsnid = DSN_NOMATCH;
}
- str = readtoken(str, token);
+ continue;
+ }
+ else if (upper_strneq (str, dsntk, dsnlen))
+ {
+ dsnid = DSN_NAMED;
+ }
+ else
+ {
+ dsnid = DSN_NOMATCH;
+ }
+
+ continue;
+ }
+ else if (dsnid == DSN_NOMATCH)
+ {
+ continue;
+ }
- if( upper_strneq( keywd, token, STRLEN(keywd)) )
- {
- str = readtoken(str, token);
+ str = readtoken (str, token);
- if( ! STREQ( token, "=") )
- /* something other than = */
- {
- continue;
- }
+ if (upper_strneq (keywd, token, STRLEN (keywd)))
+ {
+ str = readtoken (str, token);
- str = readtoken(str, token);
+ if (!STREQ (token, "="))
+ /* something other than = */
+ {
+ continue;
+ }
- if( STRLEN(token) > size - 1)
- {
- break;
- }
+ str = readtoken (str, token);
- STRNCPY(value, token, size);
- /* copy the value(i.e. next token) to buf */
+ if (STRLEN (token) > size - 1)
+ {
+ break;
+ }
- if( dsnid != DSN_DEFAULT )
- {
- break;
- }
- }
+ STRNCPY (value, token, size);
+ /* copy the value(i.e. next token) to buf */
+
+ if (dsnid != DSN_DEFAULT)
+ {
+ break;
+ }
}
+ }
- fclose(file);
+ fclose (file);
- return (*value)? value:NULL;
+ return (*value) ? value : NULL;
}
-char* _iodbcdm_getkeyvalinstr(
- char* cnstr,
- int cnlen,
- char* keywd,
- char* value,
- int size )
-{
- char token[1024] = { '\0' };
- int flag = 0;
-
- if( cnstr == NULL || value == NULL
- || keywd == NULL || size < 1 )
- {
- return NULL;
- }
- if( cnlen == SQL_NTS )
+char *
+_iodbcdm_getkeyvalinstr (
+ char *cnstr,
+ int cnlen,
+ char *keywd,
+ char *value,
+ int size)
+{
+ char token[1024] = {'\0'};
+ int flag = 0;
+
+ if (cnstr == NULL || value == NULL
+ || keywd == NULL || size < 1)
+ {
+ return NULL;
+ }
+
+ if (cnlen == SQL_NTS)
+ {
+ cnlen = STRLEN (cnstr);
+ }
+
+ if (cnlen <= 0)
+ {
+ return NULL;
+ }
+
+ for (;;)
+ {
+ cnstr = readtoken (cnstr, token);
+
+ if (*token == '\0')
{
- cnlen = STRLEN (cnstr);
+ break;
}
- if( cnlen <= 0 )
+ if (STREQ (token, ";"))
{
- return NULL;
+ flag = 0;
+ continue;
}
- for(;;)
+ switch (flag)
{
- cnstr = readtoken(cnstr, token);
-
- if( *token == '\0' )
- {
- break;
- }
-
- if( STREQ( token, ";" ) )
- {
- flag = 0;
- continue;
- }
-
- switch(flag)
- {
- case 0:
- if( upper_strneq(token, keywd, strlen(keywd)) )
- {
- flag = 1;
- }
- break;
-
- case 1:
- if( STREQ( token, "=" ) )
- {
- flag = 2;
- }
- break;
-
- case 2:
- if( size < strlen(token) + 1 )
- {
- return NULL;
- }
-
- STRNCPY( value, token, size );
-
- return value;
-
- default:
- break;
- }
+ case 0:
+ if (upper_strneq (token, keywd, strlen (keywd)))
+ {
+ flag = 1;
+ }
+ break;
+
+ case 1:
+ if (STREQ (token, "="))
+ {
+ flag = 2;
+ }
+ break;
+
+ case 2:
+ if (size < strlen (token) + 1)
+ {
+ return NULL;
+ }
+
+ STRNCPY (value, token, size);
+
+ return value;
+
+ default:
+ break;
}
+ }
- return NULL;
+ return NULL;
}
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