DeforaOS/utils
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Code cleanup

Browse Source
This commit is contained in:
Pierre Pronchery 2006-10-27 11:04:08 +00:00
parent a3c61e5358
commit c6bb475430
1 changed files with 15 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
src/head.c
View File

@ -9,20 +9,26 @@
/* head */
static int _head_error(char const * message, int ret);
static int _head_do(int flgn, char * filename);
static int _head(int flgn, int argc, char * argv[])
{
int res = 0;
int ret = 0;
int i;
if(argc == 0)
return _head_do(flgn, NULL);
for(i = 0; i < argc; i++)
{
if(_head_do(flgn, argv[i]) != 0)
res = 2;
}
return res;
ret = 1;
return ret;
}
static int _head_error(char const * message, int ret)
{
fprintf(stderr, "%s", "head: ");
perror(message);
return ret;
}
static int _head_do(int flgn, char * filename)
@ -34,18 +40,15 @@ static int _head_do(int flgn, char * filename)
if(filename == NULL)
fp = stdin;
else if((fp = fopen(filename, "r")) == NULL)
{
perror(filename);
return 1;
}
return _head_error(filename, 1);
while((c = fgetc(fp)) != EOF && n < flgn)
{
if(c == '\n')
n++;
fwrite(&c, sizeof(char), 1, stdout);
}
if(filename != NULL)
fclose(fp);
if(filename != NULL && fclose(fp) != 0)
return _head_error(filename, 1);
return 0;
}
@ -77,5 +80,5 @@ int main(int argc, char * argv[])
default:
return _usage();
}
return _head(flgn, argc - optind, &argv[optind]);
return _head(flgn, argc - optind, &argv[optind]) == 0 ? 0 : 2;
}