gecko-dev/webtools/web-sniffer/utils.c
2000-02-01 18:24:20 +00:00

130 lines
2.3 KiB
C

/*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Web Sniffer.
*
* The Initial Developer of the Original Code is Erik van der Poel.
* Portions created by Erik van der Poel are
* Copyright (C) 1998,1999,2000 Erik van der Poel.
* All Rights Reserved.
*
* Contributor(s):
*/
#include <malloc.h>
#include <stdio.h>
#include <string.h>
#include "utils.h"
unsigned char *
appendString(const unsigned char *str1, const unsigned char *str2)
{
unsigned char *result;
if (!str1)
{
return copyString(str2);
}
if (!str2)
{
return copyString(str1);
}
result = calloc(strlen((char *) str1) + strlen((char *) str2) + 1, 1);
if (!result)
{
fprintf(stderr, "cannot calloc string\n");
exit(0);
}
strcpy((char *) result, (char *) str1);
strcat((char *) result, (char *) str2);
return result;
}
unsigned char *
copyString(const unsigned char *str)
{
unsigned char *result;
if (!str)
{
return NULL;
}
result = (unsigned char *) strdup((char *) str);
if (!result)
{
fprintf(stderr, "cannot strdup string\n");
exit(0);
}
return result;
}
unsigned char *
copySizedString(const unsigned char *str, int size)
{
unsigned char *result;
result = calloc(size + 1, 1);
if (!result)
{
fprintf(stderr, "cannot calloc string\n");
exit(0);
}
strncpy((char *) result, (char *) str, size);
result[size] = 0;
return result;
}
unsigned char *
lowerCase(unsigned char *buf)
{
unsigned char c;
unsigned char *p;
p = buf;
do
{
c = *p;
if (('A' <= c) && (c <= 'Z'))
{
*p = c + 32;
}
p++;
} while (c);
return buf;
}
void *
utilRealloc(void *ptr, size_t oldSize, size_t newSize)
{
unsigned char *end;
unsigned char *p;
unsigned char *ret;
ret = realloc(ptr, newSize);
if (ret && (newSize > oldSize))
{
end = &ret[newSize];
for (p = &ret[oldSize]; p < end; p++)
{
*p = 0;
}
}
return (void *) ret;
}