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       ---
       cat.c (652B)
       ---
            1 /* See LICENSE file for copyright and license details. */
            2 #include <stdio.h>
            3 #include <string.h>
            4 
            5 #include "../slstatus.h"
            6 #include "../util.h"
            7 
            8 const char *
            9 cat(const char *path)
           10 {
           11         char *f;
           12         FILE *fp;
           13 
           14         if (!(fp = fopen(path, "r"))) {
           15                 warn("fopen '%s':", path);
           16                 return NULL;
           17         }
           18 
           19         f = fgets(buf, sizeof(buf) - 1, fp);
           20         if (fclose(fp) < 0) {
           21                 warn("fclose '%s':", path);
           22                 return NULL;
           23         }
           24         if (!f)
           25                 return NULL;
           26 
           27         if ((f = strrchr(buf, '\n')))
           28                 f[0] = '\0';
           29 
           30         return buf[0] ? buf : NULL;
           31 }
           32