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checksrc: ban unsafe functions

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The list of unsafe functions currently consists of sprintf, vsprintf,
strcat, strncat and gets.

Subsequently, some existing code needed updating to avoid warnings on
this.
This commit is contained in:
Daniel Stenberg 2013-03-06 13:27:51 +01:00
parent 9ceee69ff7
commit 7f963a19ec
10 changed files with 65 additions and 160 deletions
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23
src/tool_parsecfg.c
View file

@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@ -275,32 +275,33 @@ static char *my_get_line(FILE *fp)
{
char buf[4096];
char *nl = NULL;
char *retval = NULL;
char *line = NULL;
do {
if(NULL == fgets(buf, sizeof(buf), fp))
break;
if(!retval) {
retval = strdup(buf);
if(!retval)
if(!line) {
line = strdup(buf);
if(!line)
return NULL;
}
else {
char *ptr;
ptr = realloc(retval, strlen(retval) + strlen(buf) + 1);
size_t linelen = strlen(line);
ptr = realloc(line, linelen + strlen(buf) + 1);
if(!ptr) {
Curl_safefree(retval);
Curl_safefree(line);
return NULL;
}
retval = ptr;
strcat(retval, buf);
line = ptr;
strcpy(&line[linelen], buf);
}
nl = strchr(retval, '\n');
nl = strchr(line, '\n');
} while(!nl);
if(nl)
*nl = '\0';
return retval;
return line;
}