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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 +97 -82
1 changed files with 97 additions and 82 deletions
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hex2hcd.c
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@ -19,117 +19,132 @@
#include <stdlib.h> #include <stdlib.h>
#include <stdio.h> #include <stdio.h>
#include <string.h>
#include <errno.h> #include <errno.h>
#define RBUF_SIZE 640 #define RBUF_SIZE 640
static unsigned int asc_to_int(char a) static unsigned int asc_to_int(char a)
{ {
if (a >= 'A') return a >= 'A' ? (a - 'A') + 10 : a - '0';
return (a - 'A') + 10;
else
return a - '0';
} }
static unsigned int hex_to_int(const char *h) static unsigned int hex_to_int(const char *h)
{ {
return asc_to_int(*h) * 0x10 + asc_to_int(*(h + 1)); return asc_to_int(*h) * 0x10 + asc_to_int(*(h + 1));
} }
static unsigned int lhex_to_int(const char *h) static unsigned int lhex_to_int(const char *h)
{ {
return hex_to_int(h) * 0x100 + hex_to_int(h + 2); return hex_to_int(h) * 0x100 + hex_to_int(h + 2);
} }
static int check_sum(const char *str, int len) static int check_sum(const char *str, int len)
{ {
unsigned int sum, cal; unsigned int sum, cal;
int i; int i;
sum = hex_to_int(str + len - 2); sum = hex_to_int(str + len - 2);
for (cal = 0, i = 1; i < len - 2; i += 2) for (cal = 0, i = 1; i < len - 2; i += 2)
cal += hex_to_int(str + i); cal += hex_to_int(str + i);
cal = 0x100 - cal & 0xFF; cal = 0x100 - cal & 0xFF;
return sum == cal; return sum == cal;
} }
static int check_hex_line(const char *str, int len) static int check_hex_line(const char *str, int len)
{ {
if ((str[0] != ':') || (len < 11) || !check_sum(str, len) || if ((str[0] != ':') || (len < 11) || !check_sum(str, len) ||
(hex_to_int(str + 1) * 2 + 11 != len)) (hex_to_int(str + 1) * 2 + 11 != len))
return 0; return 0;
return 1; return 1;
}
static FILE *open_file(const char *fileName, const char *mode)
{
FILE *file = fopen(fileName, mode);
if (!file) {
printf("The file '%s' could not be opened with the following reason\n", fileName);
puts(strerror(errno));
exit(-EIO);
}
return file;
} }
int main(int argc, char *argv[]) int main(int argc, char *argv[])
{ {
unsigned int addr = 0; unsigned int addr = 0;
FILE *ifp, *ofp; char *ifn, *ofn;
char *rbuf; FILE *ifp, *ofp;
ssize_t len, i; char *rbuf;
size_t buflen; ssize_t len, i;
size_t buflen;
if (argc != 3) { switch (argc) {
printf("Usage: %s <input hex file> <output file>\n", argv[0]); case 2:
return 0; 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"); ifp = open_file(ifn, "r");
ofp = fopen(argv[2], "w"); ofp = open_file(ofn, "w");
if ((ifp == NULL) || (ofp == NULL)) {
puts("failed to open file."); rbuf = NULL;
return -EIO; while (len = getline(&rbuf, &buflen, ifp)) {
} int type;
char obuf[7];
unsigned int dest_addr;
rbuf = NULL; while ((rbuf[len - 1] == '\r') || (rbuf[len - 1] == '\n')) len--;
while ((len = getline(&rbuf, &buflen, ifp)) > 0) {
int type;
char obuf[7];
unsigned int dest_addr;
while ((rbuf[len - 1] == '\r') || (rbuf[len - 1] == '\n'))
len--;
printf("%d, %s\n", (int)len, rbuf);
if (!check_hex_line(rbuf, len))
break;
type = hex_to_int(rbuf + 7);
switch (type) {
case 4:
addr = lhex_to_int(rbuf + 9) * 0x10000;
printf("bump addr to 0x%08X\n", addr);
break;
case 0:
dest_addr = addr + lhex_to_int(rbuf + 3);
obuf[0] = 0x4c;
obuf[1] = 0xfc;
obuf[2] = hex_to_int(rbuf + 1) + 4;
obuf[3] = dest_addr;
obuf[4] = dest_addr >> 8;
obuf[5] = dest_addr >> 16;
obuf[6] = dest_addr >> 24;
if (fwrite(obuf, 7, 1, ofp) != 1)
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;
}
break;
case 1:
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"); printf("%d, %s\n", (int)len, rbuf);
return -EINVAL;
output_err: if (!check_hex_line(rbuf, len)) break;
puts("error on writing output file");
return -EIO;
end: type = hex_to_int(rbuf + 7);
return 0;
switch (type) {
case 4:
addr = lhex_to_int(rbuf + 9) * 0x10000;
printf("Bump addr to 0x%08X\n", addr);
break;
case 0:
dest_addr = addr + lhex_to_int(rbuf + 3);
obuf[0] = 0x4c;
obuf[1] = 0xfc;
obuf[2] = hex_to_int(rbuf + 1) + 4;
obuf[3] = dest_addr;
obuf[4] = dest_addr >> 8;
obuf[5] = dest_addr >> 16;
obuf[6] = dest_addr >> 24;
if (fwrite(obuf, 7, 1, ofp) != 1) 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;
}
break;
case 1:
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");
return -EINVAL;
output_err:
puts("Error on writing output file");
return -EIO;
end:
return 0;
} }