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From a646775da81a6a80c25b8bc5b26c465786ddfa38 Mon Sep 17 00:00:00 2001
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From: Roger Wolff <R.E.Wolff@BitWizard.nl>
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Date: Wed, 3 Jul 2013 12:00:28 +0200
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Subject: [PATCH 1/4] fixed default hostname
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---
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mtr.c | 10 +++++++---
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1 file changed, 7 insertions(+), 3 deletions(-)
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diff --git a/mtr.c b/mtr.c
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index 75a3b06..fd4705d 100644
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--- a/mtr.c
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+++ b/mtr.c
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@@ -141,7 +141,8 @@ append_to_names(const char* progname, const char* item) {
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fprintf(stderr, "%s: memory allocation failure\n", progname);
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exit(EXIT_FAILURE);
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}
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- name->name = strdup(item);
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+ // prepared for adding NULL name, but decided against that in the end.
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+ name->name = item?strdup(item):item;
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name->next = names;
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names = name;
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}
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@@ -581,13 +582,16 @@ int main(int argc, char **argv)
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}
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time_t now = time(NULL);
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+
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+ if (!names) append_to_names (argv[0], "localhost"); // default: localhost.
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+
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names_t* head = names;
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while (names != NULL) {
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Hostname = names->name;
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- if (Hostname == NULL) Hostname = "localhost";
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+ // if (Hostname == NULL) Hostname = "localhost"; // no longer necessary.
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if (gethostname(LocalHostname, sizeof(LocalHostname))) {
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- strcpy(LocalHostname, "UNKNOWNHOST");
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+ strcpy(LocalHostname, "UNKNOWNHOST");
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}
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if (net_preopen_result != 0) {
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--
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1.8.3.1
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