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util/nvmutil: split cmd init to new function

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Signed-off-by: Leah Rowe <leah@libreboot.org>
This commit is contained in:
Leah Rowe
2026-03-02 16:34:18 +00:00
parent 697eda800a
commit 896f0ea1df
1 changed files with 35 additions and 29 deletions
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util/nvmutil/nvmutil.c
+35 -29
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@@ -19,7 +19,8 @@ void cmd_setchecksum(void), cmd_brick(void), swap(int partnum), writeGbe(void),
checkdir(const char *path), macf(int partnum), hexdump(int partnum),
parseMacString(const char *strMac, uint16_t *mac), cmd_swap(void),
openFiles(const char *path), cmd_copy(void), writeGbe_part(int),
readGbe_part(int), usage(char*), set_io_flags(int, char **);
readGbe_part(int), usage(char*), set_io_flags(int, char **),
set_cmd(int, char **);
int goodChecksum(int partnum);
uint8_t hextonum(char chs), rhex(void);
@@ -95,33 +96,7 @@ main(int argc, char *argv[])
err_if(pledge("stdio", NULL) == -1);
#endif
if (argc > 2) {
for (int i = 0; (i < 6) && (cmd == NULL); i++) {
if (strcmp(COMMAND, op[i].str) != 0)
continue;
if (argc >= op[i].args) {
cmd = op[i].cmd;
break;
}
err(SET_ERR(EINVAL), "Too few args on command '%s'",
op[i].str);
}
} else {
cmd = cmd_setmac;
}
if ((cmd == NULL) && (argc > 2)) { /* nvm gbe [MAC] */
strMac = COMMAND;
cmd = cmd_setmac;
} else if (cmd == cmd_setmac) { /* nvm gbe setmac [MAC] */
strMac = strRMac; /* random MAC */
if (argc > 3)
strMac = MAC_ADDRESS;
} else if ((cmd != NULL) && (argc > 3)) { /* user-supplied partnum */
err_if((errno = (!((part = PARTN[0] - '0') == 0 || part == 1))
|| PARTN[1] ? EINVAL : errno)); /* only allow '0' or '1' */
}
err_if((errno = (cmd == NULL) ? EINVAL : errno));
set_cmd(argc, argv);
nvmalloc();
readGbe();
@@ -139,7 +114,6 @@ set_io_flags(int argc, char *argv[])
if (argc > 2)
if (strcmp(COMMAND, "dump") == 0)
flags = O_RDONLY;
#ifdef __OpenBSD__
if (flags == O_RDONLY)
err_if(pledge("stdio rpath unveil", NULL) == -1);
@@ -177,6 +151,38 @@ openFiles(const char *path)
xopen(rfd, "/dev/urandom", O_RDONLY);
}
void
set_cmd(int argc, char *argv[])
{
if (argc > 2) {
for (int i = 0; (i < 6) && (cmd == NULL); i++) {
if (strcmp(COMMAND, op[i].str) != 0)
continue;
if (argc >= op[i].args) {
cmd = op[i].cmd;
break;
}
err(SET_ERR(EINVAL), "Too few args on command '%s'",
op[i].str);
}
} else {
cmd = cmd_setmac;
}
if ((cmd == NULL) && (argc > 2)) { /* nvm gbe [MAC] */
strMac = COMMAND;
cmd = cmd_setmac;
} else if (cmd == cmd_setmac) { /* nvm gbe setmac [MAC] */
strMac = strRMac; /* random MAC */
if (argc > 3)
strMac = MAC_ADDRESS;
} else if ((cmd != NULL) && (argc > 3)) { /* user-supplied partnum */
err_if((errno = (!((part = PARTN[0] - '0') == 0 || part == 1))
|| PARTN[1] ? EINVAL : errno)); /* only allow '0' or '1' */
}
err_if((errno = (cmd == NULL) ? EINVAL : errno));
}
void
nvmalloc(void)
{