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ape/mv: check if from path fits and error if too long

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This commit is contained in:
cinap_lenrek 2012-12-04 06:06:28 +01:00
parent b4e34c1c74
commit 4ae38efc1c
1 changed files with 7 additions and 1 deletions
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8
sys/src/ape/cmd/mv.c
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@ -85,7 +85,13 @@ mv1(char *from, Dir *dirb, char *todir, char *toelem)
char *fromdir, *fromelem;
Dir *dirt, null;
strncpy(fromname, from, sizeof fromname);
i = strlen(from);
if(i >= sizeof(fromname)){
fprint(2, "mv: path too big (max %d): %s\n",
sizeof(fromname), from);
return -1;
}
memmove(fromname, from, i+1);
split(from, &fromdir, &fromelem);
if(toelem == 0)
toelem = fromelem;