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tweak structure

This commit is contained in:
dtb 2023-11-18 14:56:17 -07:00
parent ed85da3785
commit 771d26b32c
1 changed files with 7 additions and 6 deletions
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13
retval/retval.c
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@ -8,15 +8,16 @@ static char *program_name = "retval";
int main(int argc, char *argv[]){
unsigned int s;
if(argc < 2){
usage: fprintf(stderr, "Usage: %s [status]\n", argv[0] == NULL ? program_name : argv[0]);
return EX_USAGE;
}
if(argc < 2)
goto usage;
errno = 0;
s = strtol(argv[1], &argv[1], 10);
if(*argv[1] != '\0' || errno != 0)
goto usage;
if(*argv[1] != '\0' || errno != 0){
usage: fprintf(stderr, "Usage: %s [status]\n",
argv[0] == NULL ? program_name : argv[0]);
return EX_USAGE;
}
return s;
}