ref: 45e2b4dfe9570aefe3e5f2a8b7af956b7365f522
dir: /sys/src/cmd/auth/pemencode.c/
#include <u.h> #include <libc.h> #include <bio.h> #include <mp.h> #include <libsec.h> void usage(void) { fprint(2, "auth/pemencode section [file]\n"); exits("usage"); } void main(int argc, char **argv) { char *buf, *cbuf; int fd; long n, tot; int len; char *tag, *file; ARGBEGIN{ default: usage(); }ARGEND if(argc != 1 && argc != 2) usage(); tag = argv[0]; if(argc == 2) file = argv[1]; else file = "#d/0"; if((fd = open(file, OREAD)) < 0) sysfatal("open %s: %r", file); buf = nil; tot = 0; for(;;){ buf = realloc(buf, tot+8192); if(buf == nil) sysfatal("realloc: %r"); if((n = read(fd, buf+tot, 8192)) < 0) sysfatal("read: %r"); if(n == 0) break; tot += n; } len = 2*tot+3; cbuf = malloc(len); if(cbuf == nil) sysfatal("malloc: %r"); len = enc64(cbuf, len, (uchar*)buf, tot); print("-----BEGIN %s-----\n", tag); while(len > 0){ print("%.64s\n", cbuf); cbuf += 64; len -= 64; } print("-----END %s-----\n", tag); exits(0); }