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Add fallback when failing to parse arguments

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This commit is contained in:
Marcel Alexandru Nitan
2023-07-25 01:07:06 +03:00
parent 832a2a98c8
commit 2bd53ff6c7
1 changed files with 39 additions and 17 deletions
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56
src/main.cpp
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@@ -3,6 +3,22 @@
#include <stdio.h>
#include <string.h>
int print_help()
{
printf("Usage:\n");
printf("isodrive [FILE]... [OPTION]...\n");
printf("Mounts the given FILE as a bootable device using configfs.\n");
printf(
"Run without any arguments to unmount any mounted files and display this help message.\n\n");
printf("Optional arguments:\n");
printf("-rw\t Mounts the file in read write mode.\n");
printf("-cdrom\t Mounts the file as a cdrom.\n\n");
printf("UMOUNT:\n");
return 1;
}
int main(int argc, char *argv[])
{
char *iso_target = (char *)"";
@@ -19,7 +35,7 @@ int main(int argc, char *argv[])
{
cdrom = (char *)"1";
}
else
else if(strcmp(iso_target, "") == 0)
{
iso_target = argv[i];
}
@@ -27,34 +43,40 @@ int main(int argc, char *argv[])
if (argc == 1)
{
printf("Usage:\n");
printf("isodrive [FILE]... [OPTION]...\n");
printf("Mounts the given FILE as a bootable device using configfs.\n");
printf(
"Run without any arguments to unmount any mounted files and display this help message.\n\n");
printf("Optional arguments:\n");
printf("-rw\t Mounts the file in read write mode.\n");
printf("-cdrom\t Mounts the file as a cdrom.\n\n");
printf("UMOUNT:\n");
}
else
{
printf("MOUNT:\n");
return print_help();
}
if (!supported())
else if (!supported())
{
printf("Device does not support configfs usb gadget\n");
return 1;
}
if (getuid() != 0)
else if (getuid() != 0)
{
printf("Permission denied\n");
return 1;
}
else
{
printf("MOUNT:\n");
}
if (strcmp(ro, "1") != 0 && strcmp(ro, "0") != 0)
{
printf("\nFaled to parse -rw argument. Defaulting to ro\n");
printf("Check --help for more usage info\n");
ro = (char *)"0";
}
if (strcmp(cdrom, "1") != 0 && strcmp(cdrom, "0") != 0)
{
printf("\nFailed to parse -cdrom argument. Defaulting to disabled\n");
printf("Check --help for more usage info\n");
cdrom = (char *)"0";
}
mount_iso(iso_target, cdrom, ro);
return 0;