[TECHSUCKS] STRCPY AND \0
2009 August 31Suppose you have a char foo[11]; that you want to put a 10-Byte Text into. For simplicity you copy and paste a line that you had used just a little earlier:
strncpy(foo, "1234567890", 10);
To me, this first looked harmless and even worked fine. At least, mostly. I pretty soon found out that
strncpy doesnr't add a final \\0. So in the end it became this after all:sprintf(foo, "1234567890");
EOF
Category: blog
Tags: TechSucks