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add some help messages

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@362 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
wbx 2005-03-11 16:52:04 +00:00
parent 3fa153ac50
commit 7ceea5457d
1 changed files with 20 additions and 8 deletions
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28
openwrt/package/openwrt/mtd.c
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@ -1,7 +1,7 @@
/*
* mtd.c
*
* Copyright (C) 2005 Waldemar Brodkorb
* Copyright (C) 2005 Waldemar Brodkorb <wbx@dass-it.de>
*
* $Id$
*
@ -190,7 +190,7 @@ mtd_write(const char *trxfile, const char *mtd)
}
if(mtdInfo.size < trxstat.st_size) {
fprintf(stderr, "image to big for mtd partition: %s\n", mtd);
fprintf(stderr, "Image too big for partition: %s\n", mtd);
close(trxfd);
exit(1);
}
@ -201,7 +201,7 @@ mtd_write(const char *trxfile, const char *mtd)
/* erase the chunk */
if (ioctl (fd,MEMERASE,&mtdEraseInfo) < 0) {
fprintf(stderr, "erasing mtd failed: %s\n", mtd);
fprintf(stderr, "Erasing mtd failed: %s\n", mtd);
exit(1);
}
@ -215,10 +215,10 @@ mtd_write(const char *trxfile, const char *mtd)
result = write(fd,src,i);
if (i != result) {
if (result < 0) {
fprintf(stderr,"error while writing image");
fprintf(stderr,"Error while writing image");
exit(1);
}
fprintf(stderr,"error writing image");
fprintf(stderr,"Error writing image");
exit(1);
}
written += i;
@ -230,19 +230,31 @@ mtd_write(const char *trxfile, const char *mtd)
int main(int argc, char **argv) {
if(argc == 3 && strcasecmp(argv[1],"unlock")==0) {
printf("Unlocking %s\n",argv[2]);
printf("Unlocking %s ...\n",argv[2]);
return mtd_unlock(argv[2]);
}
if(argc == 3 && strcasecmp(argv[1],"erase")==0) {
printf("Erasing %s\n",argv[2]);
printf("Erasing %s ...\n",argv[2]);
return mtd_erase(argv[2]);
}
if(argc == 4 && strcasecmp(argv[1],"write")==0) {
printf("Writing %s to %s\n",argv[2],argv[3]);
printf("Writing %s to %s ...\n",argv[2],argv[3]);
return mtd_write(argv[2],argv[3]);
}
printf("no valid command given\n");
printf("\nmtd: modify data within a Memory Technology Device.\n");
printf("Copyright (C) 2005 Waldemar Brodkorb <wbx@dass-it.de>\n");
printf("Documented by Mike Strates [dumpedcore] <mike@dilaudid.net>\n");
printf("mtd has ABSOLUTELY NO WARRANTY and is licensed under the GNU GPL.\n");
printf("\nUsage: mtd [unlock|erase] device\n");
printf(" mtd write imagefile device\n");
printf("\n .. where device is in the format of mtdX (eg: mtd4) or its label.\n");
printf("\nunlock enable modification to device\n");
printf("erase erase all data on device\n");
printf("write write imagefile to device\n");
printf("\nExample: To write linux.trx to mtd4 labeled as linux\n");
printf("\n mtd unlock linux && mtd write linux.trx linux\n\n");
return -1;
}