Potential fix for 0-length usb packets seen on OSX

[proxmark3-svn] / client / fpga_compress.c

diff --git a/client/fpga_compress.c b/client/fpga_compress.c
index f7333b369cf955f289b222178e567c720a7b2f7d..2779e8350ec90870ed8a6d779b43cda09ce2aa79 100644 (file)
--- a/client/fpga_compress.c
+++ b/client/fpga_compress.c
@@ -85,6 +85,15 @@ int zlib_compress(FILE *infile[], uint8_t num_infiles, FILE *outfile)
        // read the input files. Interleave them into fpga_config[]
        i = 0;
        do {
+
+               if (i >= num_infiles * FPGA_CONFIG_SIZE) {
+                       fprintf(stderr, "Input files too big (total > %lu bytes). These are probably not PM3 FPGA config files.\n", num_infiles*FPGA_CONFIG_SIZE);
+                       for(uint16_t j = 0; j < num_infiles; j++) {
+                               fclose(infile[j]);
+                       }
+                       return(EXIT_FAILURE);
+               }
+
                for(uint16_t j = 0; j < num_infiles; j++) {
                        for(uint16_t k = 0; k < FPGA_INTERLEAVE_SIZE; k++) {
                                c = fgetc(infile[j]);
@@ -96,13 +105,6 @@ int zlib_compress(FILE *infile[], uint8_t num_infiles, FILE *outfile)
                        }
                }
 
-               if (i >= num_infiles * FPGA_CONFIG_SIZE) {
-                       fprintf(stderr, "Input files too big (total > %lu bytes). These are probably not PM3 FPGA config files.", num_infiles*FPGA_CONFIG_SIZE);
-                       for(uint16_t j = 0; j < num_infiles; j++) {
-                               fclose(infile[j]);
-                       }
-                       return -1;
-               }
        } while (!all_feof(infile, num_infiles));
 
        // initialize zlib structures
@@ -148,7 +150,7 @@ int zlib_compress(FILE *infile[], uint8_t num_infiles, FILE *outfile)
                fclose(outfile);
                free(infile);
                free(fpga_config);
-               return -1;
+               return(EXIT_FAILURE);
                }
                
        for (i = 0; i < compressed_fpga_stream.total_out; i++) {
@@ -164,7 +166,7 @@ int zlib_compress(FILE *infile[], uint8_t num_infiles, FILE *outfile)
        free(infile);
        free(fpga_config);
        
-       return 0;
+       return(EXIT_SUCCESS);
        
 }
 
@@ -226,12 +228,12 @@ int zlib_decompress(FILE *infile, FILE *outfile)
                }
                fclose(outfile);
                fclose(infile);
-               return 0;
+               return(EXIT_SUCCESS);
        } else {
                fprintf(stderr, "Error. Inflate() returned error %d, %s", ret, compressed_fpga_stream.msg);
                fclose(outfile);
                fclose(infile);
-               return -1;
+               return(EXIT_FAILURE);
        }
        
 }
@@ -244,24 +246,24 @@ int main(int argc, char **argv)
        
        if (argc == 1 || argc == 2) {
                usage();
-               return -1;
+               return(EXIT_FAILURE);
        }
        
        if (!strcmp(argv[1], "-d")) {                   // Decompress
                infiles = calloc(1, sizeof(FILE*));
                if (argc != 4) {
                        usage();
-                       return -1;
+                       return(EXIT_FAILURE);
                } 
                infiles[0] = fopen(argv[2], "rb");
                if (infiles[0] == NULL) {
                        fprintf(stderr, "Error. Cannot open input file %s", argv[2]);
-                       return -1;
+                       return(EXIT_FAILURE);
                }
                outfile = fopen(argv[3], "wb");
                if (outfile == NULL) {
                        fprintf(stderr, "Error. Cannot open output file %s", argv[3]);
-                       return -1;
+                       return(EXIT_FAILURE);
                }
                return zlib_decompress(infiles[0], outfile);
 
@@ -272,13 +274,13 @@ int main(int argc, char **argv)
                        infiles[i] = fopen(argv[i+1], "rb");
                        if (infiles[i] == NULL) {
                                fprintf(stderr, "Error. Cannot open input file %s", argv[i+1]);
-                               return -1;
+                               return(EXIT_FAILURE);
                        }
                }
                outfile = fopen(argv[argc-1], "wb");
                if (outfile == NULL) {
                        fprintf(stderr, "Error. Cannot open output file %s", argv[argc-1]);
-                       return -1;
+                       return(EXIT_FAILURE);
                }
                return zlib_compress(infiles, argc-2, outfile);
        }