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Duplicate setprogname argument

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For some reason, accessing the argv vector directly may cause SIGSEV.
This commit is contained in:
Robert Millan 2006-03-30 11:14:56 +00:00 committed by Guillem Jover
parent 3462d1261f
commit 1d87476250
1 changed files with 9 additions and 3 deletions
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12
src/progname.c
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@ -19,9 +19,10 @@
Rejected in glibc (http://sourceware.org/ml/libc-alpha/2006-03/msg00125.html) Rejected in glibc (http://sourceware.org/ml/libc-alpha/2006-03/msg00125.html)
*/ */
#include <bsd/stdlib.h> #include <bsd/stdlib.h> /* progname, strdup */
#include <string.h> /* free */
static char *__progname = NULL; char *__progname = NULL;
char * char *
getprogname () getprogname ()
@ -32,5 +33,10 @@ getprogname ()
void void
setprogname (char *new) setprogname (char *new)
{ {
__progname = new; /* For some reason, accessing the argv vector directly may cause SIGSEV. Let's copy it to avoid trouble. */
if (__progname != NULL)
free (__progname);
__progname = strdup (new);
} }