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Fix warning in musl related to ioctl

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Ioctl's in musl take ints, while glibc take unsigned longs. When not
using glibc, default to casting the ioctl number to an int. Tests
passing.
This commit is contained in:
Imbus 2026-02-21 08:06:37 +01:00
parent d90c05ca77
commit 1ca6f8dfdf
1 changed files with 4 additions and 0 deletions
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4
writeimg.c
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@ -278,7 +278,11 @@ int main(int argc, char *argv[]) {
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
#ifdef __GLIBC__
if (ioctl(fd, BLKGETSIZE64, &device_size) < 0) { if (ioctl(fd, BLKGETSIZE64, &device_size) < 0) {
#else /* With musl, ioctl's take ints, kheaders provide unsigned longs. Passes tests. */
if (ioctl(fd, (int)BLKGETSIZE64, &device_size) < 0) {
#endif
perror("ioctl"); perror("ioctl");
close(fd); close(fd);
exit(EXIT_FAILURE); exit(EXIT_FAILURE);