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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef _WIN32
#define popen _popen
#define pclose _pclose
#endif
int main(int argc, char *argv[])
{
char cmd_output[1024];
char cmd_exp[1024];
FILE *fp_exec, *fp_out, *fp_exp;
if (argc < 3)
{
printf("Syntax: test_output test output expected");
exit(-1);
}
if (!(fp_exec= popen(argv[1], "r")))
{
printf("Failed to run %s\n", argv[1]);
exit(-1);
}
if (!(fp_out= fopen(argv[2], "w")))
{
printf("Failed to open %s for write\n", argv[2]);
exit(-1);
}
while (NULL != fgets(cmd_output, sizeof(cmd_output-1), fp_exec))
{
fputs(cmd_output, fp_out);
}
pclose(fp_exec);
fflush(fp_out);
fclose(fp_out);
if (argc == 3)
return 0;
if (!(fp_exp= fopen(argv[3], "r")))
{
/* if no exp file exists, we just return
without an error = skip check */
return(0);
}
if (!(fp_out= fopen(argv[2], "r")))
{
printf("Failed to open %s for read\n", argv[2]);
exit(-1);
}
while (fgets(cmd_exp, sizeof(cmd_exp)-1, fp_exp))
{
if (!fgets(cmd_output, sizeof(cmd_output)-1, fp_out))
{
printf("Can't read from output file\n");
goto error;
}
if (strcmp(cmd_output, cmd_exp))
{
printf("output and expected output are different\n");
goto error;
}
}
return 0;
error:
fclose(fp_exp);
fclose(fp_out);
return 1;
}
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