Symbol: mustopen
usr/src/cmd/pr/pr.c
183
static FILE *mustopen(char *, FILS *);
usr/src/cmd/pr/pr.c
211
if (mustopen(*argv, &Files[Nfiles++]) == NULL)
usr/src/cmd/pr/pr.c
635
if (Multi != 'm' && mustopen(name, &Files[0]) == NULL)
usr/src/cmd/pr/pr.c
637
if (Multi == 'm' && Nfiles == 0 && mustopen(name, &Files[0]) == NULL)