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If no parameters are given, print usage instead of segmentation fault.

This commit is contained in:
ha7ilm 2015-11-08 13:15:50 +00:00
parent 38ae5944f8
commit 182f8e593b
1 changed files with 11 additions and 3 deletions
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14
src/RpiTx.c
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@ -95,7 +95,7 @@ int NUM_SAMPLES=NUM_SAMPLES_MAX;
char EndOfApp=0; char EndOfApp=0;
unsigned char loop_mode_flag=0; unsigned char loop_mode_flag=0;
char *FileName; char *FileName = 0;
int FileInHandle; //Handle in Transport Stream File int FileInHandle; //Handle in Transport Stream File
static void static void
udelay(int us) udelay(int us)
@ -824,10 +824,18 @@ main(int argc, char **argv)
Mode=MODE_IQ; //By default Mode=MODE_IQ; //By default
int anyargs = 0;
while(1) while(1)
{ {
a = getopt(argc, argv, "i:f:m:s:p:hld:"); a = getopt(argc, argv, "i:f:m:s:p:hld:");
if(a == -1) break;
if(a == -1)
{
if(anyargs) break;
else a='h'; //print usage and exit
}
anyargs = 1;
switch(a) switch(a)
{ {
@ -901,7 +909,7 @@ main(int argc, char **argv)
//Open File Input for modes which need it //Open File Input for modes which need it
if((Mode==MODE_IQ)||(Mode==MODE_IQ_FLOAT)||(Mode==MODE_RF)||(Mode==MODE_RFA)) if((Mode==MODE_IQ)||(Mode==MODE_IQ_FLOAT)||(Mode==MODE_RF)||(Mode==MODE_RFA))
{ {
if(strcmp(FileName,"-")==0) if(FileName && strcmp(FileName,"-")==0)
{ {
FileInHandle = STDIN_FILENO; FileInHandle = STDIN_FILENO;
} }