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sconfig: improve argument parsing

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Running sconfig with four arguments where the third
does not match /-./ made sconfig use uninitialized
memory to build the output filename.

Change-Id: If4a147ff23771ca9b6a913605af60249be1ca3d0
Found-By: Coverity Scan
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/6483
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
This commit is contained in:
Patrick Georgi
2014-08-03 15:27:35 +02:00
parent 80fd01d2cc
commit 6fa6843a8d
1 changed files with 4 additions and 1 deletions
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5
util/sconfig/main.c
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@@ -570,7 +570,10 @@ int main(int argc, char** argv) {
scan_mode = STATIC_MODE; scan_mode = STATIC_MODE;
outputc=malloc(strlen(outputdir)+20); outputc=malloc(strlen(outputdir)+20);
sprintf(outputc, "%s/static.c", outputdir); sprintf(outputc, "%s/static.c", outputdir);
} else if ((argc == 5) && (argv[3][0] == '-') && (argv[3][2] == 0)) { } else if (argc == 5) {
if ((argv[3][0] != '-') || (argv[3][2] == 0)) {
usage();
}
switch (argv[3][1]) { switch (argv[3][1]) {
case 's': case 's':