compat.c - iomenu - interactive terminal-based selection menu
 (HTM) git clone git://bitreich.org/iomenu git://enlrupgkhuxnvlhsf6lc3fziv5h2hhfrinws65d7roiv6bfj7d652fid.onion/iomenu
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       ---
       compat.c (848B)
       ---
            1 #include "compat.h"
            2 #include <ctype.h>
            3 #include <stddef.h>
            4 #include <string.h>
            5 
            6 char *
            7 strcasestr(const char *str1, const char *str2)
            8 {
            9         const char *s1;
           10         const char *s2;
           11 
           12         for (;;) {
           13                 s1 = str1;
           14                 s2 = str2;
           15                 while (*s1 != '\0' && tolower(*s1) == tolower(*s2))
           16                         s1++, s2++;
           17                 if (*s2 == '\0')
           18                         return (char *) str1;
           19                 if (*s1 == '\0')
           20                         return NULL;
           21                 str1++;
           22         }
           23 
           24         return NULL;
           25 }
           26 
           27 size_t
           28 strlcpy(char *buf, char const *str, size_t sz)
           29 {
           30         size_t len, cpy;
           31 
           32         len = strlen(str);
           33         cpy = (len > sz) ? (sz) : (len);
           34         memcpy(buf, str, cpy + 1);
           35         buf[sz - 1] = '\0';
           36         return len;
           37 }
           38 
           39 char *
           40 strsep(char **str_p, char const *sep)
           41 {
           42         char *s, *prev;
           43 
           44         if (*str_p == NULL)
           45                 return NULL;
           46 
           47         for (s = prev = *str_p; strchr(sep, *s) == NULL; s++)
           48                 continue;
           49 
           50         if (*s == '\0') {
           51                 *str_p = NULL;
           52         } else {
           53                 *s = '\0';
           54                 *str_p = s + 1;
           55         }
           56         return prev;
           57 }