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readlink: Use strlcat() instead of strncat()

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sin 2015-02-11 11:51:57 +00:00
parent aed987a9af
commit 3f3e15b314
1 changed files with 4 additions and 2 deletions
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6
readlink.c
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@ -57,7 +57,8 @@ main(int argc, char *argv[])
arg[2] = '\0'; arg[2] = '\0';
} else } else
arg[0] = '\0'; arg[0] = '\0';
strncat(arg, argv[0], PATH_MAX); if (strlcat(arg, argv[0], PATH_MAX) >= PATH_MAX)
eprintf("path too long\n");
while ((p = strchr(p, '/'))) { while ((p = strchr(p, '/'))) {
*p = '\0'; *p = '\0';
if (!realpath(arg, b)) { if (!realpath(arg, b)) {
@ -75,7 +76,8 @@ mdone:
/* drop the extra '/' on root */ /* drop the extra '/' on root */
lp += (argv[0][0] == '/' && lp += (argv[0][0] == '/' &&
lp - arg == 1); lp - arg == 1);
strncat(b, lp, PATH_MAX); if (strlcat(b, lp, PATH_MAX) >= PATH_MAX)
eprintf("path too long\n");
} }
} }
break; break;