Fix usage of baseband and potential other components from extracted IPSW

In case realpath fails, the output filename might be not set and thus fopen
will fail on it during copy. Setting the resolved output filename to the
given output filename in this case fixed the problem.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/ipsw.c b/src/ipsw.c
index bd02bf9..d1d858b 100644
--- a/src/ipsw.c
+++ b/src/ipsw.c
@@ -231,10 +231,14 @@ int ipsw_extract_to_file_with_progress(const char* ipsw, const char* infile, con
 			ret = -1;
 			goto leave;
 		} else {
+			actual_outfile[0] = '\0';
 			if (realpath(outfile, actual_outfile) && (strcmp(actual_filepath, actual_outfile) == 0)) {
 				/* files are identical */
 				ret = 0;
 			} else {
+				if (actual_outfile[0] == '\0') {
+					strcpy(actual_outfile, outfile);
+				}
 				FILE *fi = fopen(actual_filepath, "rb");
 				if (!fi) {
 					error("ERROR: fopen: %s: %s\n", actual_filepath, strerror(errno));