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fix arg parsing - sdhcp - simple dhcp client |
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git clone git://git.codemadness.org/sdhcp |
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LICENSE |
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--- |
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commit b9a0a3e1c7b194f9c82015a03cfe05fb4286d98f |
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parent 983d3375adcee59bf8acc476e0e6260bcbb88ce8 |
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Author: Hiltjo Posthuma <[email protected]> |
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Date: Fri, 25 Apr 2014 22:13:25 +0200 |
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fix arg parsing |
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Signed-off-by: Hiltjo Posthuma <[email protected]> |
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Diffstat: |
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M sdhcp.c | 13 +++++++------ |
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1 file changed, 7 insertions(+), 6 deletions(-) |
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--- |
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diff --git a/sdhcp.c b/sdhcp.c |
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@@ -304,7 +304,8 @@ static void |
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acceptlease(void) |
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{ |
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setip(client, mask, router); |
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- setdns(dns); |
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+ if(dflag == 1) |
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+ setdns(dns); |
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alarm(t1); |
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} |
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@@ -406,7 +407,7 @@ static void cleanexit(int unused) { |
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static void |
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usage(void) { |
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- eprintf("usage: sdhcp [ifname] | [[-i] <ifname>] [-r] [-c <clientid>]\… |
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+ eprintf("usage: sdhcp [ifname] | [[-i] <ifname>] [-d] [-c <clientid>]\… |
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} |
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int |
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@@ -419,7 +420,7 @@ main(int argc, char *argv[]) |
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ARGBEGIN { |
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case 'c': /* client-id */ |
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- strlcpy(cid, EARGF(usage()), sizeof(cid)); |
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+ cid = EARGF(usage()); |
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break; |
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case 'i': /* interface */ |
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ifname = EARGF(usage()); |
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@@ -432,10 +433,10 @@ main(int argc, char *argv[]) |
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break; |
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} ARGEND; |
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- if(argc == 2) |
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- usage(); |
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- else if(argc == 1) |
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+ if(argc >= 1) |
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ifname = argv[0]; |
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+ if(argc >= 2) |
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+ cid = argv[1]; |
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memset(&ifreq, 0, sizeof(ifreq)); |
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signal(SIGALRM, nop); |
