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mm(1): formatting

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This commit is contained in:
Emma Tebibyte 2024-07-13 17:23:31 -06:00
parent 26b0c93f4d
commit c7c6ca2c60
Signed by: emma
GPG Key ID: 06FA419A1698C270
1 changed files with 110 additions and 77 deletions
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105
src/mm.c
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@ -95,11 +95,15 @@ oserr(char *s, char *r){
* from main. */ * from main. */
#define terminate \ #define terminate \
for (i = 0; i < 2; ++i) { \ for (i = 0; i < 2; ++i) { \
for(j = 0; j < files[i].s; ++j) \ for (j = 0; j < files[i].s; ++j) { \
if(files[i].files[j] != stdin \ if ( \
files[i].files[j] != stdin \
&& files[i].files[j] != stdout \ && files[i].files[j] != stdout \
&& files[i].files[j] != stderr) \ && files[i].files[j] != stderr \
) { \
fclose(files[i].files[j]); \ fclose(files[i].files[j]); \
} \
} \
free(files[i].files); \ free(files[i].files); \
free(files[i].names); \ free(files[i].names); \
} \ } \
@ -133,53 +137,64 @@ int main(int argc, char *argv[]){
files[i].mode = fmode[i]; files[i].mode = fmode[i];
files[i].files = NULL; files[i].files = NULL;
files[i].names = NULL; files[i].names = NULL;
Files_append(&files[i], i == 0 ? stdin : stdout,
i == 0 ? stdin_name : stdout_name); Files_append(
&files[i],
i == 0 ? stdin : stdout,
i == 0 ? stdin_name : stdout_name
);
files[i].s = 0; files[i].s = 0;
} }
k = 0; k = 0;
if(argc > 0) if (argc > 0) { program_name = argv[0]; }
program_name = argv[0];
if(argc > 1) if (argc > 1) {
while((c = getopt(argc, argv, "aehi:no:u")) != -1) while ((c = getopt(argc, argv, "aehi:no:u")) != -1) {
switch (c){ switch (c){
case 'a': /* "rb+" -> "ab" */ case 'a': /* "rb+" -> "ab" */
files[1].mode[0] = 'a'; files[1].mode[0] = 'a';
files[1].mode[2] = '\0'; files[1].mode[2] = '\0';
break; break;
case 'e': case 'e':
if(Files_append(&files[1], stderr, stderr_name) != NULL) if (Files_append(&files[1], stderr, stderr_name) != NULL) {
break; break;
}
retval = oserr(argv[0], "-e"); retval = oserr(argv[0], "-e");
terminate; terminate;
case 'i': case 'i':
if((strcmp(optarg, "-") == 0 && Files_append(&files[0], if (
stdin, stdin_name) != NULL) (strcmp(optarg, "-") == 0
|| Files_open(&files[0], optarg) != NULL) && Files_append(&files[0], stdin, stdin_name) != NULL)
break; || Files_open(&files[0], optarg) != NULL
) { break; }
retval = oserr(argv[0], optarg); retval = oserr(argv[0], optarg);
terminate; terminate;
case 'o': case 'o':
if((strcmp(optarg, "-") == 0 && Files_append(&files[1], if (
stdout, stdout_name) != NULL) (strcmp(optarg, "-") == 0
|| Files_open(&files[1], optarg) != NULL) && Files_append(&files[1], stdout, stdout_name) != NULL)
break; || Files_open(&files[1], optarg) != NULL
) { break; }
/* does not exist, so try to create it */ /* does not exist, so try to create it */
if (errno == ENOENT) { if (errno == ENOENT) {
files[1].mode = wharsh; files[1].mode = wharsh;
if (Files_open(&files[1], optarg) != NULL) { if (Files_open(&files[1], optarg) != NULL) {
files[1].mode = fmode[1]; files[1].mode = fmode[1];
break; 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; }
break;
retval = oserr(argv[0], "-n"); retval = oserr(argv[0], "-n");
terminate; terminate;
case 'u': case 'u':
@ -189,6 +204,8 @@ int main(int argc, char *argv[]){
retval = usage(argv[0]); retval = usage(argv[0]);
terminate; terminate;
} }
}
}
if (optind != argc) { if (optind != argc) {
retval = usage(argv[0]); retval = usage(argv[0]);
@ -200,35 +217,51 @@ int main(int argc, char *argv[]){
/* Unbuffer files. */ /* Unbuffer files. */
if (k) { if (k) {
for(i = 0; for (
i < files[0].s; i = 0; i < files[0].s; setvbuf(files[0].files[i++], NULL, _IONBF, 0)
setvbuf(files[0].files[i++], NULL, _IONBF, 0)); );
for(i = 0; for (
i < files[1].s; i = 0; i < files[1].s; setvbuf(files[1].files[i++], NULL, _IONBF, 0)
setvbuf(files[1].files[i++], NULL, _IONBF, 0)); );
} }
retval = EX_OK; retval = EX_OK;
/* Actual program loop. */ /* Actual program loop. */
for(i = 0; i < files[0].s; ++i) /* iterate ins */ for (i = 0; i < files[0].s; ++i) { /* iterate ins */
while((c = getc(files[0].files[i])) != EOF) /* iterate chars */ while ((c = getc(files[0].files[i])) != EOF) { /* iterate chars */
for(j = 0; j < files[1].s; ++j) /* iterate outs */ for (j = 0; j < files[1].s; ++j) { /* iterate outs */
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", fprintf(
program_name, files[1].names[j], strerror(errno)); stderr,
if(fclose(files[1].files[j]) == EOF) "%s: %s: %s\n",
fprintf(stderr, "%s: %s: %s\n", program_name,
program_name, files[1].names[j], strerror(errno)); files[1].names[j],
strerror(errno)
);
if (fclose(files[1].files[j]) == EOF) {
fprintf(
stderr,
"%s: %s: %s\n",
program_name,
files[1].names[j],
strerror(errno)
);
}
/* massage out the tense muscle */ /* massage out the tense muscle */
for(k = j--; k < files[1].s - 1; ++k){ for(k = j--; k < files[1].s - 1; ++k){
files[1].files[k] = files[1].files[k+1]; files[1].files[k] = files[1].files[k+1];
files[1].names[k] = files[1].names[k+1]; files[1].names[k] = files[1].names[k+1];
} }
if(--files[1].s == 0)
terminate; if(--files[1].s == 0) { terminate; }
}
}
}
} }
terminate; terminate;