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Better error handling in _mount.c

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This commit is contained in:
Philip Homburg 2006-11-24 14:01:14 +00:00
parent 2032e23e8c
commit d84dd06b3f
1 changed files with 17 additions and 23 deletions
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40
lib/posix/_mount.c
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@ -13,37 +13,31 @@ PUBLIC int mount(special, name, rwflag)
char *name, *special;
int rwflag;
{
int r;
struct stat stat_buf;
message m;
m.RS_CMD_ADDR = "/sbin/mfs";
if (stat(m.RS_CMD_ADDR, &stat_buf) == -1) {
printf("MOUNT: /sbin/mfs doesn't exist\n");
m.RS_CMD_ADDR = 0;
}
if (!m.RS_CMD_ADDR) {
m.RS_CMD_ADDR = "/bin/mfs";
if (stat(m.RS_CMD_ADDR, &stat_buf) == -1) {
printf("MOUNT: /bin/mfs doesn't exist\n");
m.RS_CMD_ADDR = 0;
/* /sbin/mfs does not exist, try /bin/mfs as well */
m.RS_CMD_ADDR = "/bin/mfs";
if (stat(m.RS_CMD_ADDR, &stat_buf) == -1) {
/* /bin/mfs does not exist either, give up */
return -1;
}
}
if (m.RS_CMD_ADDR) {
if (!(stat_buf.st_mode & S_IFREG)) {
printf("MOUNT: FS binary is not a regular file\n");
}
m.RS_CMD_LEN = strlen(m.RS_CMD_ADDR);
m.RS_DEV_MAJOR = 0;
m.RS_PERIOD = 0;
if (OK != _taskcall(RS_PROC_NR, RS_UP, &m)) {
printf("MOUNT: error sending request to RS\n");
}
else {
/* copy endpointnumber */
m.m1_p3 = (char*)(unsigned long)m.RS_ENDPOINT;
}
if (m.RS_CMD_ADDR) {
m.RS_CMD_LEN = strlen(m.RS_CMD_ADDR);
m.RS_DEV_MAJOR = 0;
m.RS_PERIOD = 0;
r= _taskcall(RS_PROC_NR, RS_UP, &m);
if (r != OK) {
errno= -r;
return -1;
}
/* copy endpointnumber */
m.m1_p3 = (char*)(unsigned long)m.RS_ENDPOINT;
}
m.m1_i1 = strlen(special) + 1;