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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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8
src/tool_setopt.c
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@ -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
@ -199,7 +199,7 @@ static char *c_escape(const char *str)
e += 2;
}
else if(! isprint(c)) {
sprintf(e, "\\%03o", c);
snprintf(e, 4, "\\%03o", c);
e += 4;
}
else
@ -270,7 +270,7 @@ CURLcode tool_setopt_flags(CURL *curl, struct Configurable *config,
if(!rest)
break; /* handled them all */
/* replace with all spaces for continuation line */
sprintf(preamble, "%*s", strlen(preamble), "");
snprintf(preamble, sizeof(preamble), "%*s", strlen(preamble), "");
}
}
/* If any bits have no definition, output an explicit value.
@ -313,7 +313,7 @@ CURLcode tool_setopt_bitmask(CURL *curl, struct Configurable *config,
if(!rest)
break; /* handled them all */
/* replace with all spaces for continuation line */
sprintf(preamble, "%*s", strlen(preamble), "");
snprintf(preamble, sizeof(preamble), "%*s", strlen(preamble), "");
}
}
/* If any bits have no definition, output an explicit value.