aboutsummaryrefslogtreecommitdiffstats
path: root/jnlib/stringhelp.c
diff options
context:
space:
mode:
authorWerner Koch <[email protected]>2003-06-18 19:56:13 +0000
committerWerner Koch <[email protected]>2003-06-18 19:56:13 +0000
commitc0c2c58054923d506f61ce9a71d509b48a381211 (patch)
treea8f82bffb44eb68eb726ff6db41fa715bcd29193 /jnlib/stringhelp.c
parentA small step for GnuPG but a huge leap for error codes. (diff)
downloadgnupg-c0c2c58054923d506f61ce9a71d509b48a381211.tar.gz
gnupg-c0c2c58054923d506f61ce9a71d509b48a381211.zip
Finished the bulk of changes for gnupg 1.9. This included switching
to libgcrypt functions, using shared error codes from libgpg-error, replacing the old functions we used to have in ../util by those in ../jnlib and ../common, renaming the malloc functions and a couple of types. Note, that not all changes are listed below becuause they are too similar and done at far too many places. As of today the code builds using the current libgcrypt from CVS but it is very unlikely that it actually works.
Diffstat (limited to 'jnlib/stringhelp.c')
-rw-r--r--jnlib/stringhelp.c173
1 files changed, 164 insertions, 9 deletions
diff --git a/jnlib/stringhelp.c b/jnlib/stringhelp.c
index 3c9baaef5..e2744a5ac 100644
--- a/jnlib/stringhelp.c
+++ b/jnlib/stringhelp.c
@@ -1,5 +1,5 @@
/* stringhelp.c - standard string helper functions
- * Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
+ * Copyright (C) 1998, 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
@@ -25,6 +25,7 @@
#include <ctype.h>
#include "libjnlib-config.h"
+#include "utf8conv.h"
#include "stringhelp.h"
@@ -52,6 +53,25 @@ memistr( const char *buf, size_t buflen, const char *sub )
return NULL ;
}
+const char *
+ascii_memistr( const char *buf, size_t buflen, const char *sub )
+{
+ const byte *t, *s ;
+ size_t n;
+
+ for( t=buf, n=buflen, s=sub ; n ; t++, n-- )
+ if( ascii_toupper(*t) == ascii_toupper(*s) ) {
+ for( buf=t++, buflen = n--, s++;
+ n && ascii_toupper(*t) == ascii_toupper(*s); t++, s++, n-- )
+ ;
+ if( !*s )
+ return buf;
+ t = buf; n = buflen; s = sub ;
+ }
+
+ return NULL ;
+}
+
/****************
* Wie strncpy(), aber es werden maximal n-1 zeichen kopiert und ein
* '\0' angeh�ngt. Ist n = 0, so geschieht nichts, ist Destination
@@ -127,7 +147,6 @@ trim_trailing_spaces( char *string )
}
-
unsigned
trim_trailing_chars( byte *line, unsigned len, const char *trimchars )
{
@@ -159,6 +178,39 @@ trim_trailing_ws( byte *line, unsigned len )
return trim_trailing_chars( line, len, " \t\r\n" );
}
+size_t
+length_sans_trailing_chars (const unsigned char *line, size_t len,
+ const char *trimchars )
+{
+ const unsigned char *p, *mark;
+ size_t n;
+
+ for( mark=NULL, p=line, n=0; n < len; n++, p++ )
+ {
+ if (strchr (trimchars, *p ))
+ {
+ if( !mark )
+ mark = p;
+ }
+ else
+ mark = NULL;
+ }
+
+ if (mark)
+ return mark - line;
+ return len;
+}
+
+/****************
+ * remove trailing white spaces and return the length of the buffer
+ */
+size_t
+length_sans_trailing_ws (const unsigned char *line, size_t len)
+{
+ return length_sans_trailing_chars (line, len, " \t\r\n");
+}
+
+
/***************
* Extract from a given path the filename component.
@@ -256,18 +308,19 @@ compare_filenames( const char *a, const char *b )
/* ? check whether this is an absolute filename and
* resolve symlinks?
*/
- #ifdef HAVE_DRIVE_LETTERS
+#ifdef HAVE_DRIVE_LETTERS
return stricmp(a,b);
- #else
+#else
return strcmp(a,b);
- #endif
+#endif
}
/* Print a BUFFER to stream FP while replacing all control characters
- and the character DELIM with standard C eescape sequences. Returns
+ and the character DELIM with standard C escape sequences. Returns
the number of characters printed. */
size_t
-print_sanitized_buffer (FILE *fp, const void *buffer, size_t length, int delim)
+print_sanitized_buffer (FILE *fp, const void *buffer, size_t length,
+ int delim)
{
const unsigned char *p = buffer;
size_t count = 0;
@@ -307,8 +360,26 @@ size_t
print_sanitized_utf8_buffer (FILE *fp, const void *buffer,
size_t length, int delim)
{
- /* FIXME: convert to local characterset */
- return print_sanitized_buffer (fp, buffer, length, delim);
+ const char *p = buffer;
+ size_t i;
+
+ /* We can handle plain ascii simpler, so check for it first. */
+ for (i=0; i < length; i++ )
+ {
+ if ( (p[i] & 0x80) )
+ break;
+ }
+ if (i < length)
+ {
+ char *buf = utf8_to_native (p, length, delim);
+ /*(utf8 conversion already does the control character quoting)*/
+ i = strlen (buf);
+ fputs (buf, fp);
+ jnlib_free (buf);
+ return i;
+ }
+ else
+ return print_sanitized_buffer (fp, p, length, delim);
}
@@ -325,6 +396,63 @@ print_sanitized_utf8_string (FILE *fp, const char *string, int delim)
return print_sanitized_string (fp, string, delim);
}
+/* Create a string from the buffer P of length N which is suitable for
+ printing. Caller must release the created string using xfree. */
+char *
+sanitize_buffer (const unsigned char *p, size_t n, int delim)
+{
+ size_t save_n, buflen;
+ const byte *save_p;
+ char *buffer, *d;
+
+ /* first count length */
+ for (save_n = n, save_p = p, buflen=1 ; n; n--, p++ )
+ {
+ if ( *p < 0x20 || (*p >= 0x7f && *p < 0xa0) || *p == delim
+ || (delim && *p=='\\'))
+ {
+ if ( *p=='\n' || *p=='\r' || *p=='\f'
+ || *p=='\v' || *p=='\b' || !*p )
+ buflen += 2;
+ else
+ buflen += 4;
+ }
+ else
+ buflen++;
+ }
+ p = save_p;
+ n = save_n;
+ /* and now make the string */
+ d = buffer = jnlib_xmalloc( buflen );
+ for ( ; n; n--, p++ )
+ {
+ if (*p < 0x20 || (*p >= 0x7f && *p < 0xa0) || *p == delim
+ ||(delim && *p=='\\')) {
+ *d++ = '\\';
+ if( *p == '\n' )
+ *d++ = 'n';
+ else if( *p == '\r' )
+ *d++ = 'r';
+ else if( *p == '\f' )
+ *d++ = 'f';
+ else if( *p == '\v' )
+ *d++ = 'v';
+ else if( *p == '\b' )
+ *d++ = 'b';
+ else if( !*p )
+ *d++ = '0';
+ else {
+ sprintf(d, "x%02x", *p );
+ d += 2;
+ }
+ }
+ else
+ *d++ = *p;
+ }
+ *d = 0;
+ return buffer;
+}
+
/****************************************************
******** locale insensitive ctype functions ********
****************************************************/
@@ -371,6 +499,33 @@ ascii_strcasecmp( const char *a, const char *b )
return *a == *b? 0 : (ascii_toupper (*a) - ascii_toupper (*b));
}
+int
+ascii_strncasecmp (const char *a, const char *b, size_t n)
+{
+ const unsigned char *p1 = (const unsigned char *)a;
+ const unsigned char *p2 = (const unsigned char *)b;
+ unsigned char c1, c2;
+
+ if (p1 == p2 || !n )
+ return 0;
+
+ do
+ {
+ c1 = ascii_tolower (*p1);
+ c2 = ascii_tolower (*p2);
+
+ if ( !--n || c1 == '\0')
+ break;
+
+ ++p1;
+ ++p2;
+ }
+ while (c1 == c2);
+
+ return c1 - c2;
+}
+
+
int
ascii_memcasecmp( const char *a, const char *b, size_t n )
{