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diff -Nrup net-tools-1.60.orig/lib/interface.c net-tools-1.60/lib/interface.c
--- net-tools-1.60.orig/lib/interface.c 2004-08-12 05:54:09.000000000 -0400
+++ net-tools-1.60/lib/interface.c 2004-08-12 06:03:20.000000000 -0400
@@ -203,28 +203,34 @@ out:
static char *get_name(char *name, char *p)
{
- while (isspace(*p))
- p++;
- while (*p) {
- if (isspace(*p))
- break;
- if (*p == ':') { /* could be an alias */
- char *dot = p, *dotname = name;
- *name++ = *p++;
- while (isdigit(*p))
- *name++ = *p++;
- if (*p != ':') { /* it wasn't, backup */
- p = dot;
- name = dotname;
- }
- if (*p == '\0')
- return NULL;
- p++;
- break;
+ /* Extract <name>[:<alias>] from nul-terminated p where p matches
+ <name>[:<alias>]: after leading whitespace.
+ If match is not made, set name empty and return unchanged p */
+ int namestart=0, nameend=0, aliasend;
+ while (isspace(p[namestart]))
+ namestart++;
+ nameend=namestart;
+ while (p[nameend] && p[nameend]!=':' && !isspace(p[nameend]))
+ nameend++;
+ if (p[nameend]==':') {
+ aliasend=nameend+1;
+ while (p[aliasend] && isdigit(p[aliasend]))
+ aliasend++;
+ if (p[aliasend]==':') {
+ nameend=aliasend;
+ }
+ if ((nameend-namestart)<IFNAMSIZ) {
+ memcpy(name,&p[namestart],nameend-namestart);
+ name[nameend-namestart]='\0';
+ p=&p[nameend];
+ } else {
+ /* Interface name too large */
+ name[0]='\0';
}
- *name++ = *p++;
+ } else {
+ /* first ':' not found - return empty */
+ name[0]='\0';
}
- *name++ = '\0';
return p;
}
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