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Annotation of researchv9/libc/gen/strdup.c, revision 1.1.1.1

1.1       root        1: /*     @(#)strdup.c    1.2     */
                      2: /*LINTLIBRARY*/
                      3: /* string duplication
                      4:    returns pointer to a new string which is the duplicate of string
                      5:    pointed to by s1
                      6:    NULL is returned if new string can't be created
                      7: */
                      8: 
                      9: #include <string.h>
                     10: #ifndef NULL
                     11: #define NULL   0
                     12: #endif
                     13: 
                     14: extern int strlen();
                     15: extern char *malloc();
                     16: 
                     17: char *
                     18: strdup(s1) 
                     19: 
                     20:    char * s1;
                     21: 
                     22: {  
                     23:    char * s2;
                     24: 
                     25:    s2 = malloc((unsigned) strlen(s1)+1) ;
                     26:    return(s2==NULL ? NULL : strcpy(s2,s1) );
                     27: }

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