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34 lines
785 B
34 lines
785 B
POSIX says that behavior when subopts list is empty is undefined.
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musl libs will set value to NULL which leads to crash.
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Simply avoid getsubopt, since we cannot rely on it.
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--- a/utils/v4l2-ctl/v4l2-ctl-common.cpp
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+++ b/utils/v4l2-ctl/v4l2-ctl-common.cpp
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@@ -679,16 +679,17 @@ static bool parse_subset(char *optarg)
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static bool parse_next_subopt(char **subs, char **value)
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{
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- static char *const subopts[] = {
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- NULL
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- };
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- int opt = getsubopt(subs, subopts, value);
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+ char *p = *subs;
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+ *value = *subs;
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- if (opt < 0 || *value)
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- return false;
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- fprintf(stderr, "No value given to suboption <%s>\n",
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- subopts[opt]);
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- return true;
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+ while (*p && *p != ',')
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+ p++;
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+
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+ if (*p)
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+ *p++ = '\0';
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+
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+ *subs = p;
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+ return false;
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}
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void common_cmd(int ch, char *optarg)
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