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Simon Poole reports that awk segfaults when environment variables

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with no value exist, i.e.

	$ export BOB=''
	% ./busybox awk
	Segmentation fault

This patch teaches awk to not blow chunks on empty env variables.
 -Erik
This commit is contained in:
Eric Andersen 2004-07-30 23:52:08 +00:00
parent cbcdbc41ff
commit 67776bef59
1 changed files with 4 additions and 0 deletions
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editors/awk.c
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@ -2670,8 +2670,12 @@ extern int awk_main(int argc, char **argv) {
for (envp=environ; *envp; envp++) {
s = bb_xstrdup(*envp);
s1 = strchr(s, '=');
if (!s1) {
goto keep_going;
}
*(s1++) = '\0';
setvar_u(findvar(iamarray(V[ENVIRON]), s), s1);
keep_going:
free(s);
}