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authorDenys Vlasenko2016-10-26 02:03:37 +0200
committerDenys Vlasenko2016-10-26 02:03:37 +0200
commita513bf3c3ce0756c991b21c0ca271e24fedcdb51 (patch)
tree3e2e210badd57f1e9489ff465b79944b1c1904a0 /shell/ash.c
parent88e15703acdbfb182440cf35fdb8972fc4931dd2 (diff)
downloadbusybox-a513bf3c3ce0756c991b21c0ca271e24fedcdb51.zip
busybox-a513bf3c3ce0756c991b21c0ca271e24fedcdb51.tar.gz
ash: [BUILTIN] Treat OPTIND=0 in the same way as OPTIND=1
Upstream commit: Date: Sat, 6 Oct 2007 18:59:31 +0800 [BUILTIN] Treat OPTIND=0 in the same way as OPTIND=1 Previously setting OPTIND to 0 would cause subsequent getopts calls to fail. This patch makes dash reset the getopts parameters the same way as OPTIND=1. Both behaviours are allowed by POSIX but other common shells do tolerate this case. function old new delta getoptsreset 24 30 +6 getoptscmd 632 614 -18 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'shell/ash.c')
-rw-r--r--shell/ash.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/shell/ash.c b/shell/ash.c
index e30d7fe..647fc81 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -2019,7 +2019,7 @@ extern struct globals_var *const ash_ptr_to_globals_var;
static void FAST_FUNC
getoptsreset(const char *value)
{
- shellparam.optind = number(value);
+ shellparam.optind = number(value) ?: 1;
shellparam.optoff = -1;
}
#endif
@@ -10571,8 +10571,6 @@ getopts(char *optstr, char *optvar, char **optfirst, int *param_optind, int *opt
sbuf[1] = '\0';
- if (*param_optind < 1)
- return 1;
optnext = optfirst + *param_optind - 1;
if (*param_optind <= 1 || *optoff < 0 || (int)strlen(optnext[-1]) < *optoff)