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sysctl: fix bug 3894 _for real_.
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@ -234,19 +234,30 @@ static int sysctl_display_all(const char *path)
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static void sysctl_dots_to_slashes(char *name)
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{
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char *cptr = name;
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char *cptr, *last_good;
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char *end = name + strlen(name) - 1;
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/* Example from bug 3894:
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* net.ipv4.conf.eth0.100.mc_forwarding ->
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* net/ipv4/conf/eth0.100/mc_forwarding */
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while (*cptr != '\0') {
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* net/ipv4/conf/eth0.100/mc_forwarding. NB:
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* net/ipv4/conf/eth0/mc_forwarding *also exists*,
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* therefore we must start from the end, and if
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* we replaced even one . -> /, start over again,
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* but never replace dots before the position
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* where replacement occurred. */
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last_good = name - 1;
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again:
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cptr = end;
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while (cptr > last_good) {
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if (*cptr == '.') {
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*cptr = '\0';
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if (access(name, F_OK) == 0)
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if (access(name, F_OK) == 0) {
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*cptr = '/';
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else
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*cptr = '.';
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last_good = cptr;
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goto again;
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}
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*cptr = '.';
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}
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cptr++;
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cptr--;
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}
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} /* end sysctl_dots_to_slashes() */
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