tweak structure
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ed85da3785
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771d26b32c
@ -8,15 +8,16 @@ static char *program_name = "retval";
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int main(int argc, char *argv[]){
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unsigned int s;
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if(argc < 2){
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usage: fprintf(stderr, "Usage: %s [status]\n", argv[0] == NULL ? program_name : argv[0]);
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return EX_USAGE;
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}
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if(argc < 2)
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goto usage;
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errno = 0;
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s = strtol(argv[1], &argv[1], 10);
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if(*argv[1] != '\0' || errno != 0)
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goto usage;
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if(*argv[1] != '\0' || errno != 0){
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usage: fprintf(stderr, "Usage: %s [status]\n",
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argv[0] == NULL ? program_name : argv[0]);
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return EX_USAGE;
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}
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return s;
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}
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