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https://github.com/topjohnwu/ndk-busybox.git
synced 2024-12-11 13:35:00 +00:00
Fix open mode for IOCTLs which write to the tape.
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commit
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@ -55,7 +55,7 @@ extern int mt_main(int argc, char **argv)
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const char *file = "/dev/tape";
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const struct mt_opcodes *code = opcodes;
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struct mtop op;
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int fd;
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int fd, mode;
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if (argc < 2) {
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show_usage();
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@ -87,7 +87,20 @@ extern int mt_main(int argc, char **argv)
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else
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op.mt_count = 1; /* One, not zero, right? */
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if ((fd = open(file, O_RDONLY, 0)) < 0)
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switch (code->value) {
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case MTWEOF:
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case MTERASE:
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case MTWSM:
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case MTSETDRVBUFFER:
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mode = O_WRONLY;
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break;
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default:
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mode = O_RDONLY;
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break;
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}
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if ((fd = open(file, mode, 0)) < 0)
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perror_msg_and_die("%s", file);
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if (ioctl(fd, MTIOCTOP, &op) != 0)
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17
mt.c
17
mt.c
@ -55,7 +55,7 @@ extern int mt_main(int argc, char **argv)
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const char *file = "/dev/tape";
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const struct mt_opcodes *code = opcodes;
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struct mtop op;
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int fd;
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int fd, mode;
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if (argc < 2) {
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show_usage();
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@ -87,7 +87,20 @@ extern int mt_main(int argc, char **argv)
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else
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op.mt_count = 1; /* One, not zero, right? */
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if ((fd = open(file, O_RDONLY, 0)) < 0)
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switch (code->value) {
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case MTWEOF:
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case MTERASE:
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case MTWSM:
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case MTSETDRVBUFFER:
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mode = O_WRONLY;
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break;
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default:
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mode = O_RDONLY;
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break;
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}
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if ((fd = open(file, mode, 0)) < 0)
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perror_msg_and_die("%s", file);
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if (ioctl(fd, MTIOCTOP, &op) != 0)
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