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Eliminate a segfault when called on an existing file with out an extension:
touch foo && gunzip foo
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b181056e06
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@ -158,9 +158,9 @@ extern int gunzip_main(int argc, char **argv)
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delete_old_file = TRUE;
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extension = strrchr(if_name, '.');
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if (strcmp(extension, ".gz") == 0) {
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if (extension && strcmp(extension, ".gz") == 0) {
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length -= 3;
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} else if (strcmp(extension, ".tgz") == 0) {
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} else if (extension && strcmp(extension, ".tgz") == 0) {
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length -= 4;
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} else {
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error_msg_and_die("Invalid extension");
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4
gunzip.c
4
gunzip.c
@ -158,9 +158,9 @@ extern int gunzip_main(int argc, char **argv)
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delete_old_file = TRUE;
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extension = strrchr(if_name, '.');
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if (strcmp(extension, ".gz") == 0) {
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if (extension && strcmp(extension, ".gz") == 0) {
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length -= 3;
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} else if (strcmp(extension, ".tgz") == 0) {
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} else if (extension && strcmp(extension, ".tgz") == 0) {
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length -= 4;
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} else {
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error_msg_and_die("Invalid extension");
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