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Show reason when cannot open a file, and some stuffs #3

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K4zoku wants to merge 4 commits from K4zoku/master into master
pull from: K4zoku/master
merge into: schtobia:master
Conversation 0 Commits 4 Files changed 1 +37 -24
1 changed files with 37 additions and 24 deletions
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Showing only changes of commit 817e2a7f29 - Show all commits

53
hex2hcd.c
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@ -19,16 +19,14 @@
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#define RBUF_SIZE 640
static unsigned int asc_to_int(char a)
{
if (a >= 'A')
return (a - 'A') + 10;
else
return a - '0';
return a >= 'A' ? (a - 'A') + 10 : a - '0';
}
static unsigned int hex_to_int(const char *h)
@ -60,25 +58,43 @@ static int check_hex_line(const char *str, int len)
return 1;
}
static FILE *open_file(const char *fileName, const char *mode)
{
FILE *f = fopen(fileName, mode);
if (f == NULL) {
printf("The file '%s' could not be opened with the following reason\n", fileName);
printf("%s\n", strerror(errno));
exit(-EIO);
}
return f;
}
int main(int argc, char *argv[])
{
unsigned int addr = 0;
char *ifn, *ofn;
FILE *ifp, *ofp;
char *rbuf;
ssize_t len, i;
size_t buflen;
if (argc != 3) {
printf("Usage: %s <input hex file> <output file>\n", argv[0]);
switch (argc) {
case 2:
ifn = ofn = argv[1];
break;
case 3:
ifn = argv[1];
ofn = argv[2];
break;
default:
printf("Usage: %s <input hex file> [<output file>]\n", argv[0]);
return 0;
}
ifp = fopen(argv[1], "r");
ofp = fopen(argv[2], "w");
if ((ifp == NULL) || (ofp == NULL)) {
puts("failed to open file.");
return -EIO;
}
ifp = open_file(ifn, "r");
ofp = open_file(ofn, "w");
rbuf = NULL;
while ((len = getline(&rbuf, &buflen, ifp)) > 0) {
@ -94,7 +110,7 @@ int main(int argc, char *argv[])
switch (type) {
case 4:
addr = lhex_to_int(rbuf + 9) * 0x10000;
printf("bump addr to 0x%08X\n", addr);
printf("Bump addr to 0x%08X\n", addr);
break;
case 0:
dest_addr = addr + lhex_to_int(rbuf + 3);
@ -109,27 +125,24 @@ int main(int argc, char *argv[])
goto output_err;
for (i = 0; i < hex_to_int(rbuf + 1); i++) {
obuf[0] = hex_to_int(rbuf + 9 + i * 2);
if (fwrite(obuf, 1, 1, ofp) != 1)
goto output_err;
if (fwrite(obuf, 1, 1, ofp) != 1) goto output_err;
}
break;
case 1:
if (fwrite("\x4e\xfc\x04\xff\xff\xff\xff", 7, 1, ofp) != 1)
goto output_err;
if (fwrite("\x4e\xfc\x04\xff\xff\xff\xff", 7, 1, ofp) != 1) goto output_err;
goto end;
default:
return -EINVAL;
}
}
puts("hex file formatting error");
puts("Hex file formatting error");
return -EINVAL;
output_err:
puts("error on writing output file");
puts("Error on writing output file");
return -EIO;
end:
return 0;
}