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Eliminate a segfault when called on an existing file with out an extension:

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touch foo && gunzip foo
This commit is contained in:
Matt Kraai 2001-04-18 15:51:45 +00:00
parent b181056e06
commit 54652230d4
2 changed files with 4 additions and 4 deletions
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4
archival/gunzip.c
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@ -158,9 +158,9 @@ extern int gunzip_main(int argc, char **argv)
delete_old_file = TRUE;
extension = strrchr(if_name, '.');
if (strcmp(extension, ".gz") == 0) {
if (extension && strcmp(extension, ".gz") == 0) {
length -= 3;
} else if (strcmp(extension, ".tgz") == 0) {
} else if (extension && strcmp(extension, ".tgz") == 0) {
length -= 4;
} else {
error_msg_and_die("Invalid extension");

4
gunzip.c
View File

@ -158,9 +158,9 @@ extern int gunzip_main(int argc, char **argv)
delete_old_file = TRUE;
extension = strrchr(if_name, '.');
if (strcmp(extension, ".gz") == 0) {
if (extension && strcmp(extension, ".gz") == 0) {
length -= 3;
} else if (strcmp(extension, ".tgz") == 0) {
} else if (extension && strcmp(extension, ".tgz") == 0) {
length -= 4;
} else {
error_msg_and_die("Invalid extension");