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mm(1), mm.1: bring source in line with documentation

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dtb 2024-02-26 09:11:47 -07:00
parent d74bc715cf
commit 135bf2a8eb
Signed by: trinity
GPG Key ID: 31FF85CCB6DC7641
2 changed files with 50 additions and 44 deletions
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2
docs/mm.1
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@ -56,7 +56,7 @@ writing to that particular output, and if there are more outputs specified,
continues, eventually exiting unsuccessfully. continues, eventually exiting unsuccessfully.
.PP .PP
On error mm prints a diagnostic message and exits with the appropriate On error mm prints a diagnostic message and exits with the appropriate
sysexits.h(3) status. sysexits.h(3) status.
.SH BUGS .SH BUGS

92
src/mm.c
View File

@ -132,53 +132,57 @@ int main(int argc, char *argv[]){
k = 0; k = 0;
while((c = getopt(argc, argv, "aehi:no:u")) != -1) if(argc > 0)
switch(c){ program_name = argv[0];
case 'a': /* "rb+" -> "ab" */
files[1].mode[0] = 'a'; if(argc > 1)
files[1].mode[2] = '\0'; while((c = getopt(argc, argv, "aehi:no:u")) != -1)
break; switch(c){
case 'e': case 'a': /* "rb+" -> "ab" */
if(Files_append(&files[1], stderr, stderr_name) != NULL) files[1].mode[0] = 'a';
files[1].mode[2] = '\0';
break; break;
retval = oserr(argv[0], "-e"); case 'e':
terminate; if(Files_append(&files[1], stderr, stderr_name) != NULL)
case 'i':
if((strcmp(optarg, "-") == 0 && Files_append(&files[0],
stdin, stdin_name) != NULL)
|| Files_open(&files[0], optarg) != NULL)
break;
retval = oserr(argv[0], optarg);
terminate;
case 'o':
if((strcmp(optarg, "-") == 0 && Files_append(&files[1],
stdout, stdout_name) != NULL)
|| Files_open(&files[1], optarg) != NULL)
break;
/* does not exist, so try to create it */
if(errno == ENOENT){
files[1].mode = wharsh;
if(Files_open(&files[1], optarg) != NULL){
files[1].mode = fmode[1];
break; break;
retval = oserr(argv[0], "-e");
terminate;
case 'i':
if((strcmp(optarg, "-") == 0 && Files_append(&files[0],
stdin, stdin_name) != NULL)
|| Files_open(&files[0], optarg) != NULL)
break;
retval = oserr(argv[0], optarg);
terminate;
case 'o':
if((strcmp(optarg, "-") == 0 && Files_append(&files[1],
stdout, stdout_name) != NULL)
|| Files_open(&files[1], optarg) != NULL)
break;
/* does not exist, so try to create it */
if(errno == ENOENT){
files[1].mode = wharsh;
if(Files_open(&files[1], optarg) != NULL){
files[1].mode = fmode[1];
break;
}
} }
} retval = oserr(argv[0], optarg);
retval = oserr(argv[0], optarg); terminate;
terminate; case 'n':
case 'n': if(signal(SIGINT, SIG_IGN) != SIG_ERR)
if(signal(SIGINT, SIG_IGN) != SIG_ERR) break;
retval = oserr(argv[0], "-n");
terminate;
case 'u':
k = 1;
break; break;
retval = oserr(argv[0], "-n"); default:
terminate; fprintf(stderr, "Usage: %s (-aenu) (-i [input])..."
case 'u': " (-o [output])...\n", argv[0]);
k = 1; retval = EX_USAGE;
break; terminate;
default: }
fprintf(stderr, "Usage: %s (-aenu) (-i [input])..."
" (-o [output])...\n", argv[0]);
retval = EX_USAGE;
terminate;
}
files[0].s += files[0].s == 0; files[0].s += files[0].s == 0;
files[1].s += files[1].s == 0; files[1].s += files[1].s == 0;
@ -202,6 +206,8 @@ int main(int argc, char *argv[]){
if(putc(c, files[1].files[j]) == EOF){ if(putc(c, files[1].files[j]) == EOF){
/* notebook's full */ /* notebook's full */
retval = EX_IOERR; retval = EX_IOERR;
fprintf(stderr, "%s: %s: %s\n",
program_name, files[1].names[j], strerror(errno));
if(fclose(files[1].files[j]) == EOF) if(fclose(files[1].files[j]) == EOF)
fprintf(stderr, "%s: %s: %s\n", fprintf(stderr, "%s: %s: %s\n",
program_name, files[1].names[j], strerror(errno)); program_name, files[1].names[j], strerror(errno));