42 lines
910 B
C
42 lines
910 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <unistd.h>
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int smd_main(int argc, char **argv)
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{
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int fd, len, r, port = 0;
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char devname[32];
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argc--;
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argv++;
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if((argc > 0) && (argv[0][0] == '-')) {
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port = atoi(argv[0] + 1);
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argc--;
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argv++;
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}
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sprintf(devname,"/dev/smd%d",port);
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fd = open(devname, O_WRONLY);
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if(fd < 0) {
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fprintf(stderr,"failed to open smd0 - %s\n",
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strerror(errno));
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return -1;
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}
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while(argc > 0) {
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len = strlen(argv[0]);
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r = write(fd, argv[0], len);
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if(r != len) {
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fprintf(stderr,"failed to write smd0 (%d) %s\n",
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r, strerror(errno));
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return -1;
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}
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argc--;
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argv++;
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write(fd, argc ? " " : "\r", 1);
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}
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close(fd);
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return 0;
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}
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