1cc0b13b57
systemconfig (a.k.a "activate") is run from the initramfs. Converting it from a shell script to an executable means it doesn't depend on there being a shell in the initramfs
37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
#include <sys/stat.h>
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#include <unistd.h>
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#include <sys/sysmacros.h>
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#include <fcntl.h>
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#include <string.h>
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#include <stdlib.h>
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void print_file(char * path, mode_t mode, char * text) {
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int fd = open(path, O_CREAT | O_WRONLY, mode);
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char *p, *nxt;
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char b[1];
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if(fd >=0) {
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p = text;
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while(nxt = strchr(p, '\\')) {
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char upper = nxt[2];
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char lower = nxt[3];
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upper = (upper>'9') ? ((upper | 32) - 'a' + 10) : (upper - '0');
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lower = (lower>'9') ? ((lower | 32) - 'a' + 10) : (lower - '0');
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b[0] = (upper << 4) + lower;
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write(fd, p, nxt-p);
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write(fd, b, 1);
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p=nxt+4;
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}
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write(fd, p, strlen(p));
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close(fd);
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}
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}
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#define PRINTFILE(path, mode, text) print_file(path, (mode_t) mode, text)
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#define MKDIR(path, mode) mkdir(path, mode)
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#define MKNOD_C(path, mode, major,minor) mknod(path, mode | S_IFCHR, makedev(major, minor))
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#define MKNOD_B(path, mode, major,minor) mknod(path, mode | S_IFBLK, makedev(major, minor))
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#define LN_S(target, path) (void)symlink(target, path)
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#define LN(target, path) link(target, path)
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#define MKNOD_P(path, mode) mkfifo(path, mode)
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